Color Genes WEB site European Society for Pigment Cell ResearchInternational Federation of Pigment Cell Societies (IFPCS)


The following table contains information on color genes described in mice and their human and zebrafish homologues. We have included both genes that have been cloned and those that have only been mapped. Some loci, such as Bcl2 and Brca1, are not obvious candidates for color loci, but mutations in these genes (sometimes as seen in a knockout) do result in a dilution of coat color, and thus have been included in this table. Currently there are 368 loci described in this table (159 cloned genes and 209 uncloned genes). We are actively updating this table with additional loci involved in pigmentation, therefore the number of loci shown will be increasing in the near future. We suggest you to visit this WEB page regularly to obtain the most updated information.

There are two sets of loci:

Summary of cloned color genes

Summary of non-cloned color genes

Last modified on September 8, 2009


We hope that this table is of use to you. If you have any corrections or additions, please let us know at micemut@espcr.org. Though we have tried to make this information as accurate as possible, the ESPCR and the IFPCS make no guarantee as to the accuracy of this information.

Many of these color mutations can be obtained from the The Jackson Laboratory or the Mutant Mouse Regional Resource Centers or located in one of the several existing mouse repositories world wide, searchable through the International Mouse Strain Resource.

Appearance and coat color descriptions from some of these mouse color mutants are also available (with some pictures) at the Mouse Phenome Database.

The human gene mutation database is available at the HGMD of the University of Cardiff (registration required). The Albinism Database, at the University of Minnesota, includes mutations associated with all major known forms of oculocutaneous and ocular albinism. The Locus Specific Mutation Databases, at the Human Genome Variation Society, contain useful links to a variety of databases holding information about mutations of different genes.

Additional information can be found in the classical book "The Coat Colors of Mice" by Willys K. Silvers (Springer Verlag, 1979), available on-line, along with other related books,  through the Mouse Genome Informatics WEB site of The Jackson Laboratory.
 


Note: The links under the "Current symbol" row contain the most current information from The Jackson Laboratory - Mouse Genome Informatics MGI . The links under "Mouse Chromosome" and "Human Chromosome" contain all available molecular information at the ENSEMBL WEB SITE on the corresponding mouse and human genes, respectively. They also contain Mouse SNPs information of the corresponding mouse gene and all associated SNPs of the corresponding human gene, from the Single Nucleotide Polymorphism (SNPs) database of NCBI . New "Mouse Functional Genomics" features have been added. A direct link to KOMP (Knock-Out Mouse Project) has been included for all mouse genes (KO), this link includes connections to the EUCOMM (European Conditional Mouse Mutagenesis), NORCOM (North America Conditional Mouse Mutagenesis) and the Regeneron mouse knock-out programs, to check whether mice and/or ES cells gene targeted for this locus are available or not. The corresponding mice (mice), if available (alive or as frozen embryo and/or sperm stoks) can be found through the IMSR (International Mouse Strains Resource), In addition, the associated gene-traps ES cell clones (traps), through the IGTC (International Gene Trap Consortium) are also indicated, if available. The links under "Human Locus" or "Associated Disease" contain most updated information from the OMIM (Online Mendelian Inheritance of Man) . Also, under "Associated Diseases" it is included a direct link to the Albinism Database, held at the University of Minnesota, with information about mutations and polymorphisms of genes associated with different types of albinism. The column describing the corresponding protein encoded, includes a link, if available, to Gene Paint project Gene Paint Project illustrating the results of in situ hybridisation experiments of this locus on mouse embryos. A link to all NCBI databases (i.e. PubMed) with information about the gene or locus is also included. The links under "Murine Locus" provide illustrative images , if available, of mice displaying the phenotype of some alleles of the corresponding gene. Currently, this web site holds 85 mouse pictures. The zebrafish homologous loci, if available, have been included according to the Zebrafish Model Organism Database . A whole list of zebrafish pigmentation mutants, irrespective whether they have its correlate in mammals or not, can be obtained by inspecting this list.


Summary of the cloned mouse color genes, human and zebrafish homologues

Current symbol

Murine Locus

(pictures)

Mouse
Chrom.

KOMP

TRAPS

Human Locus

Human Chromosome

Associated Disease

Protein Encoded

Gene Paint Project

Function in Pigmentation / Mutant phenotype

 

All NCBI

Databases

Zebrafish

locus

  Development

Acd

adrenocortical dysplasia

8

KO

traps

 

ACD

 

16q22.1

Unknown

Telomere capping. May affect pigmentation through excess ACTH

Hyperpigmented skin, adrenal hyperplasia, other organ disorders

Unknown

Adam17

a disintegrin and metalloproteinase domain 17, Adam17

12

KO

traps

 

ADAM17

 

2p25

Unknown

a disintegrin and metalloproteinase domain 17, Protease, processing various surface proteins

in situ

Irregular pigmentation in hairs

adam17a

adam17b

Adamts20

belted (bt)

Click to see mouse pictures of Adamsts20 alleles (1)

15

KO

traps

ADAMTS20

12q12

Unknown

A disintegrin and metalloprotease domain (reprolysin type) with thrombospondin type 1 motif, 20

in situ

Metalloprotease. Melanoblast migration? Lumbar white belt

Unknown

 

Apc

Adenomatous polyposis coli, allele tm2Rak

18

KO

traps

 

APC

 

5q22.2

Adenomatous polyposis coli

The APC gene encodes a multidomain protein that is an integral part of the beta-catenin and plays a major role in tumor suppression by antagonizing the WNT, Wnt pathway mediator; transcription factor

in situ

prenatal dorsal dark stripe and head patch

apc

Bmpr1a

Bone morphogenetic protein receptor, type 1A, allele tm1Bh

14

KO

traps

BMPR1A

10q23.2

Juvenile polyposis syndrome

Bone morphogenetic protein receptor, type 1A

in situ

Abnormal prenatal RPE with discontinuity in pigmentation

bmpr1a

bmpr1ab

Bmpr1b

Bone morphogenetic protein receptor, type 1B, allele tm1Kml

3

KO

traps

BMPR1B

4q22.3

Brachydactyly, types A2, C;
chondrodysplasia

Bone morphogenetic protein receptor, type 1B

in situ

Abnormal prenatal RPE with discontinuity in pigmentation

bmpr1b

Brca1

Brca1

11

KO

traps

BRCA1

17q21

Breast/ovarian cancer

DNA repair; Tumor suppressor

in situ

Development of various organs; abnormal skin pigmentation

Unknown

Dock7

dedicator of cytokinesis 7; misty (m), moonlight (mnlt)

4

KO

traps

DOCK7

1p31.3

Unknown

Dedicator of cytokinesis protein 7, widely expressed Rho family guanine nucleotide exchange factor

in situ

generalized hypopigmentation and localized white-spotting in mice, with a lack of pigment on the belly, tail tip, and paws; but melanocytes in vitro hyperpigmented

dock7

Ece1

Endothelin converting enzyme 1, allele tm1Reh

4

KO

traps

ECE1

1p36.12

Unknown

Endothelin converting enzyme 1; endothelin synthesis

in situ

in situ

No melanocytes in uvea, dorsal skin at birth (perinatal lethal)

Unknown

Edn3

endothelin 3, lethal spotting (ls)

2

KO

traps

EDN3

20q13.2-q13.3

Waardenburg-Shah Syndrome

Melanoblast/neuroblast growth and differentiation factor

in situ

White spotting, megacolon and other neural crest defects

Unknown

Ednrb

 

piebald spotting (s)

Click to see mouse pictures of Ednrb alleles (2)

14

KO

traps

EDNRB

13q22

Hirschsprung's disease type 2

endothelin receptor B; Edn3 receptor

in situ

White spotting, megacolon and other neural crest defects

ednrb1

Egfr

Epidermal growth factor receptor, dark skin 5 (dsk5)

11

KO

traps

EGFR

7p12.3

Unknown

epidermal growth factor receptor

in situ

dark skin

egfr

En1

Engrailed 1

1

KO

traps

EN1

2q14.2

Unknown

Homeobox protein engrailed-1; transcription factor

in situ

Hyperpigmentation of digits (polydactyly etc)

eng1a

eng1b

Fgfr2

Fibroblast growth factor receptor 2, Fgfr2

7

KO

traps

FGFR2

10q26

Crouzon syndrome
Apert syndrome
Pfeiffer syndrome

Fibroblast growth factor receptor 2

in situ

Lighter skin (many other defects)

fgfr2

Fkbp8

FK506 binding protein 8, allele tm1Tili

8

KO

traps

FKBP8

19p13.11

Unknown

Endogenous calcineurin inhibitor; can inhibit apoptosis

in situ

Microphthalmia/ anophthalmia

fkbp8

Foxn1

forkhead box N1, allele tw (traveling wave)

11

KO

traps

FOXN1

17q11.2

Unknown

forkhead box protein N1; transcription factor

in situ

Hairless. Waves of dark/light travel slowly over skin (possible normal hair cycle + very short hairs)

foxn1

Frem2

Fras1 related extracellular matrix protein 2

allele my-F11

3

KO

traps

FREM2

13q13.3

Fraser syndrome

Extracellular protein. Possibly epithelial- mesenchymal interactions at basement membrane

in situ

in situ

Microphthalmia/ anophthalmia, patches of discolored or white fur

frem2a

frem2b

Fzd4

frizzled homolog 4 (Drosophila), allele tm1Nat

7

KO

traps

FZD4

11q14.2

Exudative vitreoretinopathy 1

 7-transmembrane domain protein that is receptor for Wnt  signaling proteins,  putatively for Wnt5a and/or Ndp

in situ

in situ

Many abnormalities including light or silvered coat

fzd4

Gas1

growth arrest specific 1, allele tm1Fan

13

KO

traps

GAS1

9q21.33

Holoprosencephaly

Can enhance hedgehog signaling, inhibit growth

in situ

in situ

in situ

in situ

RPE transdifferentiates to neural retina

gas1a

gas1b

Gata3

GATA binding protein 3, allele tm3Gsv

2

KO

traps

GATA3

10p14

hypoparathyroidism, sensorineural deafness, and renal disease (HDR) syndrome, Barakat syndrome

GATA binding protein 3, transcription factor

in situ

in situ

Extra stem-like cells in hair follicles; abnormal hair, irregular pigment deposition

gata3

Gli3

GLI-Kruppel family member GLI3

13

KO

traps

GLI3

7p14.1

Pallister-Hall syndrome, Greig Cephalopolysybdactyly syndrome and others

Signaling in Hedgehog pathway. Modifies SOX10 expression

in situ

White belly patch or lumbar belt; nervous system defects (homo- zygous postnatal lethal)

gli3

Gnaq

dark skin 1 (dsk1)
dark skin 10 (dsk10)

19

KO

traps

GNAQ

9q21

Diminished platelet aggregation

Guanine nucleotide binding protein subunit Gaq; Signal transduction, possibly from an EDNR(s) to PLC

in situ

GPCR signalling: limits melanocyte proliferation / Dark skin (hyperproliferation of melanocytes)

gnaq

Gna11

dark skin 7 (dsk7)

10

KO

traps

GNA11

19p13

Unknown

Guanine nucleotide binding protein subunit Ga11

in situ

GPCR signalling: limits melanocyte proliferation / Dark skin (hyperproliferation of melanocytes)

gna11

Gnpat

glyceronephosphate O-acyltransferase, allele tm1Just

8

KO

traps

GNPAT

1q42.2

type 2 rhizomelic chondrodysplasia punctata (RCDP2)

glyceronephosphate O-acyltransferase

in situ

Abnormal RPE morphology, microphthalmia

gnpat

Gpc3

glypican 3, allele tm1Arge

X

KO

traps

GPC3

Xq26.2

Simpson-Golabi-Behmel syndrome type 1

glypican 3; GPI-linked extracellular membrane protein. Putative SHH-binding (competitive with PTCH)

in situ

dominant distal and belly spotting

gpc3

Gpr161

G protein-coupled receptor 161

vacuolated lens (vl)

1

KO

traps

GPR161

1q24.2

Unknown

Signal transduction; G protein-coupled receptor 161, G-protein coupled receptor RE2

in situ

Vacuolated lens, occasional belly spot, spine development

gpr161

Grlf1

glucocorticoid receptor DNA binding factor 1 (p190 RhoGAP)

7

KO

traps

GRLF1

19q13.32

Unknown

glucocorticoid receptor DNA binding factor 1; Transcriptional repressor

in situ

RPE hyperplasia, microphthalmia

Unknown

Hells

helicase, lymphoid specific

7

KO

traps

HELLS

10q23.33

Unknown

DNA methylation, gene silencing

Early ageing includes graying by 15d old; p16 overexpression

hells

Itgb1

integrin beta 1, allele tm1Ref

8

KO

traps

ITGB1

10p11.22

Unknown

integrin beta 1 (fibronectin receptor beta); cell attachment, migration

in situ

transient patchy hypopigmentation, crest migration defect

itgb1a

itgb1b

itgb1b.1

itgb1b.2

Jmjd6

Jumonji domain containing 6, allele tm1Gbf

11

KO

traps

JMJD6

17q25.2

Unknown

Demethylates histones. Transcriptional regulator

Lack of one/both eyes, ectopic RPE in nose

jmjd6

Kit

 

Kit oncogene, dominant white-spotting (W)

Click to see mouse pictures of Kit alleles (3)

5

KO

traps

KIT

4q11-12

Piebaldism

Receptor for Kit ligand/SCF; required for melanoblast survival, homing

in situ

in situ

White spotting, anemia and germ-cell deficiency

kita

Kitl

steel (Sl)

10

KO

traps

KITLG

12q22

Unknown

Stem cell factor (SCF)
(Kit ligand); melanoblast growth and differentiation

in situ

in situ

White spotting, anemia and germ-cell deficiency

kitlga

Krt1

keratin 1, dark skin 12 (dsk12)

15

KO

traps

KRT1

12q13

epidermolytic hyperkeratosis

cytoskeleton

dark skin, Primary action in keratinocytes. Limits melanization

krt1-c5

krt1-19d

krt1-11b

Krt17

keratin 17, allele tm1Cou

11

KO

traps

KRT17

17q21.2

Pachyonychia congenita type 2 (Jackson-Lawler type).

Steatocystoma multiplex

cytoskeleton

dark skin, abnormal hairs with clustered melanin granules

zgc:92061

Krt2

keratin 2-17, dark skin 2 (dsk2)

15

KO

traps

KRT2A

12q11-q13

Ichthyosis bullosa of Siemens

cytoskeleton; keratin complex 2, basic, gene 17

in situ

dark skin

Unknown

Krt4

keratin 4

15

KO

traps

KRT4

12q13.13

White Sponge Nevus of Cannon

cytoskeleton

“bright” diluted coat color

krt4

Krt75 keratin 75, allele tm1Der

15

KO

traps

KRT75

12q13.13

Unknown

cytoskeleton

in situ

hair defects with variable pigment clumping

Unknown

Lef1

lymphoid enhancer binding factor 1, allele tm1Rug

3

KO

traps

LEF1

4q25

Sebaceous adenomas

transcription factor, Wnt/b-catenin mediator, Mutations result in impaired binding to beta-catenin

in situ

 underdeveloped hair follicles lacking melanin

lef1

Lmx1a

LIM homeobox transcription factor 1 alpha, dreher (dr)

1

KO

traps

LMX1A

1q22-23

Unknown

LIM homeodomain protein 1, transcription factor

Partial or complete white belt and/or belly spot

Unknown

Mab21l2

Mab-21-like 2 (C. elegans), allele tm1Nao

3

KO

traps

MAB21L2

4q31.3

Unknown

Cell fate determination, TGFβ signaling

in situ

lack of RPE by time of embryonic lethality

mab21l2

Mbtps1

membrane-bound transcription factor peptidase, site 1, allele wrt

8

KO

traps

MBTPS1

16q23.3-q24.1

Unknown

Peptidase involved in regulation of membrane lipid composition

in situ

Diluted hair with white base (melanocyte death?)

mbtps1

Mcoln3

mucolipin 3, varitint-waddler (Va)

3

KO

traps

MCOLN3

1p22.3

Unknown

Cation channel, ion homeostasis?

in situ

Patches of normal, diluted and white hair (and behavioral defects)

Unknown

Med1

mediator complex subunit 1, (Peroxisome proliferator-activated receptor-binding protein, Pparbp)

11

KO

traps

MED1

17q12

Unknown

Binds methylated DNA. DNA repair. Mediator of RNA polymerase II transcription subunit 1, (Thyroid hormone receptor- associated protein complex 220 kDa component,  Trap220)

in situ

Low retinal pigmentation (before embryonic lethality)

Unknown

Mitf

microphthalmia (mi)

Click to see mouse pictures of pwk alleles (27)

6

KO

traps

MITF

3p12-14

Waardenburg syndrome type 2

transcription factor, master regulator of melanocyte lineage

melanocyte differentiation, White spotting and small or absent eyes

mitfa

mitfb

Mpzl3

myelin protein zero-like 3 (allele rough coat, rc)

9

KO

traps

MPZL3

11q23.3

Unknown

Putative adhesion protein, expressed in keratinocytes

Hair follicle loss, black pigment changes to light brown

mpzl3

Myc

myelocytomatosis oncogene (when KO targeted by Wnt1 promoter-Cre)

15

KO

traps

MYC

8q24.21

Unknown

Myc proto-oncogene protein  (c-myc), Transcription factor, regulator of cell proliferation

in situ

in situ

Pigmentary spotting, not head

myca

mycb

Ndp

Norrie disease homolog (allele tm1Wbrg)

X

KO

traps

NDP

Xp11.4

Norrie disease

pseudoglioma

Norrin, TGFβ-like extracellular factor. FZD4 and LRP5 also associated with human Norrie disease

in situ

Many defects including hyperpigmentation of RPE and overgrowth of strial melanocytes

ndp

Nf1

neurofibromatosis 1

11

KO

traps

NF1

17q11.2

Neurofibromatosis type 1

RAS GTPase-activating protein Neurofibromin 1

in situ

Small, unpigmented eyes – microphthalmia
(Ras pathway)

nf1

Notch1

Notch gene homolog 1 (Drosophila)

2

KO

traps

NOTCH1

9q34.3

Unknown

Receptor for ligands in Delta and Jagged families

in situ

in situ

in situ

Scattered grey hairs, when KO targetted to melanocytes (Tyr-Cre)

notch1a

notch1b

Notch2

Notch gene homolog 2 (Drosophila)

3

KO

traps

NOTCH2

1p12

Alagille Syndrome 2

Receptor for ligands in Delta and Jagged families

in situ

Scattered grey hairs, when KO targetted to melanocytes (Tyr-Cre). All grey with Notch1 KO, eventually white

notch2

Nr2e1

nuclear receptor subfamily 2, group E, member 1 (allele fierce, frc)

10

KO

traps

NR2E1

6q21

Unknown

Transcriptional repressor, recruits HDAC to DNA, stem cell maintenance

in situ

in situ

in situ

Brain and eye defects. Asymmetrical and mottled RPE

nr2e1

Ntrk1

neurotrophic tyrosine kinase, receptor, type 1 (TrkA)

3

KO

traps

NTRK1

1q23.1

Insensitivity to pain, congenital, with anhidrosis (CIPA)

Co-receptor for nerve growth factor

in situ

Mottled coat (also neural defects, skin lesions)

ntrk1

Otx2

orthodenticle homolog 2 (Drosophila)

14

KO

traps

OTX2

14q23.1

Dysgnathia complex

Hox-like transcription factor, can induce RPE identity in neural retina

in situ

in situ

in situ

in situ

in situ

in situ

in situ

in situ

Many effects including RPE hyperplasia

otx2

Pax2

paired box gene 2

19

KO

traps

PAX2

10q24.31

Unknown

PAX-2 transcription factor

in situ

Many effects including RPE cells extending into optic nerve

pax2a

pax2b

Pax3

splotch (Sp)

1

KO

traps

PAX3

2q35

Waardenburg syndrome type 1

WS type 3

PAX-3 transcription factor

in situ

in situ

neural tube development

pax3

Pax6

paired box gene 6 (small eye, Sey)

2

KO

traps

PAX6

11p13

Aniridia

Other eye disorders

PAX-6 transcription factor

in situ

in situ

in situ

in situ

Eye abnormalities can include reduced RPE, also distal/ventral white spotting

pax6a

pax6b

Pcbd1

pterin 4 alpha carbinolamine dehydratase/ dimerization cofactor of hepatocyte nuclear factor 1 alpha (TCF1) 1

10

KO

traps

PCBD1

10q22.1

Hyperphenylalaninemia with primapterinuria

Both phenylalanine metabolism and binding partner of TCF1 (HNF1), hence WNT pathway interaction

in situ

Mild hypopigmentation, belly spot, mild microphthalmia

pcbd1

Pdgfb

platelet derived growth factor, B polypeptide

15

KO

traps

PDGFB

22q13.1

Meningioma

platelet derived growth factor, B polypeptide

in situ

Cardiovascular and eye defects include abnormal RPE, microphthalmia

pdgfb

Pdgfc

platelet derived growth factor, C polypeptide

3

KO

traps

PDGFC

4q32.1

Unknown

platelet derived growth factor, C polypeptide

in situ

Depigmented spots in the retina

pdgfc

Phactr4

phosphatase and actin regulator 4, allele humpty dumpty

4

KO

traps

PHACTR4

1p35.3

Unknown

Regulator of protein phosphatase 1 and its dephosphorylation of RB1

in situ

Neuroblast overgrowth; outgrowths in RPE

phactr4

Pitx3

paired-like homeodomain transcription factor 3 (aphakia, ak)

19

KO

traps

PITX3

10q24.32

Congenital cataract

Transcription factor. CNS neuronal differentiation

in situ

in situ

Eye abnormalities including hyperpigmentation around embryonic pupil

pitx3

Pygo1

pygopus 1, homolog (Drosophila)

9

KO

traps

PYGO1

15q21.3

Unknown

Cofactor for β-catenin- LEF-mediated transcription

in situ

eye and other defects including folded RPE

Unknown

Rb1

Retinoblastoma 1 (targeted)

14

KO

traps

RB1

13q14.2

Retinoblastoma 1

Growth-inhibitor, suppresses E2F transactivation activity

in situ

melanocyte over-proliferation in culture

rb1

Rs1

retinoschisis (X-linked, juvenile) 1 (human), allele tmgc1

X

KO

traps

RS1

Xp22.13

retinoschisis (X-linked, juvenile) 1

Retinal protein; homologies to cell-adhesion proteins

in situ

small patches of depigmentation in RPE

rs1

S1pr2

sphingosine-1-phosphate receptor 2 (Edg5), allele tm1Rlp

9

KO

traps

S1PR2

19p13.2

Unknown

sphingosine-1-phosphate receptor 2

in situ

Inner ear abnormalities include thickening & hyper-pigmentation of stria vascularis

s1pr2

Sema3c

sema domain, immunoglobulin domain (Ig), short basic domain, secreted, (semaphorin) 3C

5

KO

traps

SEMA3C

7q21.11

Unknown

Secreted signaling factor, can mediate axon repulsion

in situ

Some skin hypopigmentation, ectopic pigment in internal organs

sema3c

Sema4a

sema domain, immunoglobulin domain (Ig), transmembrane domain (TM) and short cytoplasmic domain, (semaphorin) 4A

3

KO

traps

SEMA4A

1q22

Retinitis pigmentosa 35

Transmembrane juxtacrine signaling protein

in situ

Abnormal RPE, postnatal depigmentation of eye

Unknown

Sfxn1

flexed tail (f)

13

KO

traps

SFXN1

5q35.3

Unknown

Tricarboxylate carrier protein (TCC)

Note: there is an alternative identification of f as Smad5

in situ

Belly spot (and flexed tail, anemia etc)

sfxn1

Snai2

snail homolog 2 (Drosophila)

16

KO

traps

SNAI2

8q11

Waardenburg syndrome 2

Transcription factor

in situ

in situ

Spotting, head blaze, pale hair and skin, neural crest and other organ defects

snai2

Sox10

 

SRY-box containing gene 10, Dominant megacolon (Dom)

Click to see mouse pictures of Sox10 alleles (2)

15

KO

traps

SOX10

22q13

Waardenburg-Shah Syndrome

Transcription factor

in situ

White spotting, megacolon and other neural crest defects

sox10

Sufu

suppressor of fused homolog (Drosophila)

19

KO

traps

SUFU

10q24.32

medulloblastoma

Cytoplasmic signaling intermediate

in situ

CNS, dark hair, basal cell lesions on skin (Hh pathway suppressor)

sufu

Tbx10

T-box 10 (Dc, dancer)

19

KO

traps

TBX10

11q13.2

Unknown

T-box 10 transcription factor (ectopic expression in Dc)

in situ

Head spot (variable); ear, palate & neural defects

Unknown

Tbx15

T-box 15 (de, droopy ear)

3

KO

traps

TBX15

1p12

Cousin syndrome

T-box 15 transcription factor

in situ

Ear shape; skeletal, altered dorsoventral color pattern with At, ae

tbx15

Tcfap2a

transcription factor AP-2, alpha

13

KO

traps

TFAP2A

6p24

Unknown

Transcription factor
Can regulate kit

in situ

Mouse knock-out (Wnt1-targeted) produces neural crest defects including coat color alterations

tfap2a

Timp3

tissue inhibitor of metalloproteinase 3

10

KO

traps

TIMP3

22q12.3

Fundus dystrophy, pseudoinflammatory, of Sorsby

Protease inhibitor and can block VEGF binding to receptor

in situ

Abnormal RPE morphology

timp3

Traf6

Tnf receptor-associated factor 6

2

KO

traps

TRAF6

11p12

Ectodermal dysplasia, anhidrotic

Signaling from IL1A to NFκB

in situ

Many effects including pale skin, few/delayed hair follicles. Postnatal lethal

traf6

Tub

tubby candidate gene

7

KO

traps

TUB

11p15.4

Unknown

Anti-apoptotic; downstream mediator of Gq signaling

Obese; eye and ear abnormalities; degeneration and loss of RPE.

tub

Unc119

unc-119 homolog (C. elegans)

11

KO

traps

UNC119

17q11.2

Knobloch syndrome type I

proposed receptor- associated activator of SRC-family kinases

in situ

Retinal degeneration; mottling of RPE

unc119-1

unc119-2

Vsx2

visual system homeobox 2

12

KO

traps

VSX2

14q24.3

Unknown

Pax-like transcription factor

Microphthalmia, reduced eye pigmentation

vsx2

Wnt1

wingless-related MMTV integration site 1

15

KO

traps

WNT1

12q13

Unknown

Growth factor/morphogen

in situ

Defects of neural crest including melanoblasts in mice lacking both Wnt1 and Wnt3a

wnt1

Wnt3a

wingless-related MMTV integration site 3A

11

KO

traps

WNT3A

1q42

Unknown

Growth factor/morphogen

in situ

Defects of neural crest including melanoblasts in mice lacking both Wnt1 and Wnt3a

wnt3l

Zbtb17

zinc finger and BTB domain containing 17

4

KO

traps

ZBTB17

1p36.13

Unknown

Transcription factor

in situ

Darkened coat (mixed strain background); dark skin, dark dermis around hairs, Abnormal follicles

Unknown

Zfp53

zinc finger protein 53

17

KO

traps

Unknown

Unknown

Unknown

Transcription factor?

in situ

Abnormal skin pigmentation

Unknown

Zic2

Zinc finger protein of the cerebellum 2, Kumba (Ku)

14

KO

traps

ZIC2

13q32

Holoprosencephaly 5

Transcription factor

in situ

neural crest formation and hindbrain patterning
belly spot, curly tail

zic2a

zic2b

  Components of melanosomes and their precursors

Dct

 

tyrosinase related protein 2 (TRP2), slaty (slt)

Click to see mouse pictures of Dct alleles (4)

14

KO

traps

DCT

13q31-q32

Unknown

DOPAchrome tautomerase, melanosomal enzyme

in situ

Dilution of eumelanin color

dct

Gpnmb

iris pigment dispersion (ipd)

6

KO

traps

GPNMB

7q

pigment-dispersion syndrome (GPDS1)?

Glycoprotein (transmembrane), apparent melanosomal component

in situ

Glaucoma, iris pigment epithelium disorders, especially with Tyrp1b/b

Unknown

Si

gp100/gp87/silver protein, Pmel17, silver (si)

10

KO

traps

SILV

12q13-q14

Unknown

melanosomal matrix protein, trapping of melanin intermediates?

in situ

Silvering with postnatal melanocyte loss in eumelanic animals (varying with strain background)

silva

silvb

Slc24a5

solute carrier family 24, member 5 (NCKX5)

2

KO

traps

SLC24A5

15q21.1

Unknown

Calcium transporter,
melanosomal?

in situ

Skin, eye color

slc24a5

Slc45a2

underwhite (uw)

Matp

15

KO

traps

SLC45A2

5p

oculocutaneous albinism type 4 (OCA4)

Solute transporter,  Membrane-associated transporter protein (Matp)

in situ

Severe dilution of coat and eye pigment

slc45a2

Tyr

tyrosinase, albino, color (c)

Click to see mouse pictures of Tyr alleles (24)

7

KO

traps

TYR

11q21

oculocutaneous albinism type 1 (OCA1)

melanogenic enzyme No pigment in null mice (multiple allelic variants)

tyr

Tyrp1

tyrosinase related protein 1 (TRP1), brown (b)

Click to see mouse pictures of Tyr alleles (3)

4

KO

traps

TYRP1

9p23

oculocutaneous albinism type 3 (OCA3)

Rufous albinism

melanosomal enzyme/stabilizing factor

in situ

Brown eumelanin. Allele isa can contribute to glaucoma

tyrp1a

tyrp1b

  Melanosome construction / protein routing (HPS-related)

Ap3b1

pearl (pe)

13

KO

traps

AP3B1

5q14.1

Hermansky Pudlak syndrome type 2

HPS - General

beta-3 subunit of adaptor protein 3 complex (AP-3)

in situ

Organellar protein routing

ap3b1

Ap3d1

mocha (mh)

10

KO

traps

AP3D1

19p13.3

Unknown

delta subunit of adaptor protein 3 complex (AP-3)

in situ

Organellar protein routing

Unknown

Bloc1s3

Reduced pigmentation (rp)

7

KO

traps

BLOC1S3

19q13.32

Hermansky Pudlak syndrome type 8

Unknown

in situ

a component of the BLOC1 protein transport complex

Unknown

Cno

cappuccino (cno)

5

KO

traps

CNO

4p16-p15

Unknown

Unknown

in situ

Organelle biogenesis

cno

Dtnbp1

sandy (sdy)

13

KO

traps

DTNBP1

6p22.3

Hermansky Pudlak syndrome type 7

HPS - General

dysbindin

in situ

lysosome-related organelles complex 1 (BLOC-1)

dtnbp1a

dtnbp1b

Fig4

pale tremor (plt)

Click to see mouse pictures of Fig4 alleles (1)

10

KO

traps

 FIG4

6q21

Charcot-Marie-Tooth (CMT) disease type 4J

Phosphatidylinsositol-(3,5)-bisphosphate 5-phosphatase

 late endosome-lysosome axis, Pale skin neonatally, few hair follicles, clumped melanosomes (and  immune effects etc)

Unknown

Gpr143

Oa1 (oa1)

X

KO

traps

GPR143

Xp22.3

ocular albinism type 1

G-protein-coupled receptor (GPR143)

in situ

Melanosome Biogenesis
signal transduction

gpr143

Hps1

pale ear (ep)

19

KO

traps

HPS1

10q23

Hermansky Pudlak syndrome type 1

HPS - General

membrane protein

in situ

Organelle biogenesis and size

hps1

Hps3

cocoa (coa)

3

KO

traps

HPS3

3q24

Hermansky Pudlak Syndrome type 3

HPS - general

Unknown

Organelle biogenesis

Unknown

Hps4

light ear (le)

5

KO

traps

HPS4

22q11.2-q12.2

Hermansky Pudlak Syndrome type 4

HPS - General

Unknown

in situ

Organelle biogenesis and size

Unknown

Hps5

Ruby-eye 2 (ru2)

7

KO

traps

HPS5

11p15-p13

Hermansky Pudlak syndrome type 5

HPS - General

Unknown

biogenesis of lysosome-related organelles complex-2

Unknown

Hps6

Ruby-eye (ru)

19

KO

traps

HPS6

10q24.31

Hermansky Pudlak syndrome type 6

HPS - General

Unknown

in situ

biogenesis of lysosome-related organelles complex-2

Unknown

Lyst

beige (bg)

13

KO

traps

LYST

1q42

Chediak Higashi syndrome

membrane protein

in situ

Organelle biogenesis and size

lyst

Muted

muted (mu), Txndc5

13

KO

traps

TXNDC5

6p24.3-25.1

Unknown

BLOC-1 subunit, TXNDC5

in situ

Organelle biogenesis

txndc5

Oca2

 

pinkeyed-dilution (p)

Click to see mouse pictures of p alleles (6)

7

KO

traps

OCA2

15q11.2-q12

oculocutaneous albinism type 2 (OCA2)

Unknown

in situ

Melanosome biogenesis and size

oca2

Pldn

pallid (pa)

2

KO

traps

 PLDN

15q15

Unknown

pallidin

in situ

vesicle-docking and fusion

Unknown

Rab38

chocolate (cht)

Click to see mouse pictures of Rab38 alleles (1)

7

KO

traps

RAB38

11q14

Unknown

Member of RAS oncogene family

in situ

Targeting of Tyrp1 protein to the melanosome

Unknown

Rabggta

gunmetal (gm)

14

KO

traps

RABGGTA

14q11.2

Unknown

alpha-subunit of rab geranylgeranyl transferase

in situ

Organelle biogenesis

Unknown

Trappc6a

trafficking protein particle complex 6A

7

KO

traps

TRAPPC6A

19q13.32

Unknown

trafficking protein particle complex 6A

in situ

Pale patches in the coat and RPE

Unknown

Vps33a

buff (bf)

5

KO

traps

VPS33A

12q24.31

Unknown

vacuolar protein sorting 33a

in situ

Organellar protein routing

vps33a

  Melanosome transport

Mlph

leaden (ln)

1

KO

traps

MLPH

2q37

Griscelli syndrome (?)

melanophilin

in situ

melanosome transport

mlpha

mlphb

Mreg

dilute suppressor (dsu)

1

KO

traps

MREG

2q35

Unknown

whn-dependent transcript 2 (Wdt2)

Melanoregulin

in situ

Melanosome transport

Unknown

Myo5a

dilute (d)

9

KO

traps

MYO5A

15q21

Griscelli syndrome

myosin type Va

in situ

melanosome transport

myo5a

Myo7a

shaker-1 (sh-1)

7

KO

traps

MYO7A

11q13.5

Usher syndrome type IB

Myosin type VIIa

in situ

Melanosome transport in RPE

myo7a

Rab27a

ashen (ash)

9

KO

traps

RAB27A

15q21

Griscelli syndrome

RAS associated protein

in situ

melanosome transport

Unknown

  Eumelanin and Pheomelanin

a

 

nonagouti (a)

Click to see mouse pictures of a alleles (9)

2

KO

traps

ASIP

20q11.2

hair color/skin type

agouti signal protein (ASIP)

in situ

Eumelanin / pheomelanin switch

asip

asip2

Atrn

mahogany (mg)

2

KO

traps

ATRN

20p13

Unknown

Attractin

in situ

Eumelanin / pheomelanin switch (among others)

Unknown

Drd2

Dopamine receptor 2, allele tm1mok

9

KO

traps

DRD2

11q23.1-23.2

Unknown

Dopamine receptor 2

in situ

in situ

in situ

in situ

in situ

in situ

in situ

Agouti color darkened. POMC level raised

drd2a

drd2b

Eda

Tabby (Ta)

X

KO

traps

ED1

Xq12-q13

Ectodermal dysplasia type 1

ectodysplasin-A

in situ

Sweat gland, tooth and hair morphogenesis

eda

Edaradd

Ectodysplasin A receptor-associated death domain (cr, crinkled)

13

KO

traps

EDARADD

1q43

Unknown

Delayed hair growth, agouti coat darker dorsally, yellower laterally

in situ

Ectodysplasin A receptor-associated death domain

edaradd

Ggt1

Ggt1

10

KO

traps

GGT1

22q1

Glutathionuria

gamma glutamyltranspeptidase 1

in situ

Glutathione metabloism (pheomelanin synthesis)

ggt1

L1cam

Neural cell adhesion molecule L1, allele tm1Sor

X

KO

traps

L1CAM

Xq28

X-linked hydrocephalus, MASA/Crash syndrome

Neural cell adhesion molecule L1

in situ

in situ

black fur patches on agouti

nadl1.1

nadl1.2

Mc1r

extension (e)

8

KO

traps

MC1R

16q24.3

hair color/skin type

Melanocortin 1 receptor

in situ

Eumelanin / pheomelanin switch

mc1r

Mgrn1

mahogunin, ring finger 1, Mahoganoid (md)

16

KO

traps

MGRN1

16p13.3

Unknown

Mahogounin, ring finger 1

E3 ubiquitin ligase?

in situ

Melanin color
Spongiform Degeneration

mgrn1

Ostm1

grey-lethal (Gl)

10

KO

traps

OSTM1

6q21

autosomal recessive osteopetrosis

Unknown

in situ

Pheomelanin and osteoclast function

Unknown

Pomc

Pomc1

12

KO

traps

POMC

2p23.3

Red Hair

Proopiomelanocortin, including Melanocyte Stimulating Hormone (MSH)

in situ

Eumelanin / pheomelanin switch
(and endocrine functions)