Entry |
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Name |
Melanogenesis - Mus musculus (mouse)
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Description |
Cutaneous melanin pigment plays a critical role in camouflage, mimicry, social communication, and protection against harmful effects of solar radiation. Melanogenesis is under complex regulatory control by multiple agents. The most important positive regulator of melanogenesis is the MC1 receptor with its ligands melanocortic peptides. MC1R activates the cyclic AMP (cAMP) response-element binding protein (CREB). Increased expression of MITF and its activation by phosphorylation (P) stimulate the transcription of tyrosinase (TYR), tyrosinase-related protein 1 (TYRP1), and dopachrome tautomerase (DCT), which produce melanin. Melanin synthesis takes place within specialized intracellular organelles named melanosomes. Melanin-containing melanosomes then move from the perinuclear region to the dendrite tips and are transferred to keratinocytes by a still not well-characterized mechanism.
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Class |
Organismal Systems; Endocrine system
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Pathway map |

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Organism |
Mus musculus (mouse) [GN: mmu]
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Gene |
14683 | Gnas; GNAS (guanine nucleotide binding protein, alpha stimulating) complex locus [KO:K04632] |
12912 | Creb1; cAMP responsive element binding protein 1 [KO:K05870] |
12913 | Creb3; cAMP responsive element binding protein 3 [KO:K09048] |
26427 | Creb3l1; cAMP responsive element binding protein 3-like 1 [KO:K09048] |
208647 | Creb3l2; cAMP responsive element binding protein 3-like 2 [KO:K09048] |
208677 | Creb3l3; cAMP responsive element binding protein 3-like 3 [KO:K09048] |
78284 | Creb3l4; cAMP responsive element binding protein 3-like 4 [KO:K09048] |
17342 | Mitf; melanogenesis associated transcription factor [KO:K09455] |
22408 | Wnt1; wingless-type MMTV integration site family, member 1 [KO:K03209] |
22413 | Wnt2; wingless-type MMTV integration site family, member 2 [KO:K00182] |
22414 | Wnt2b; wingless-type MMTV integration site family, member 2B [KO:K00182] |
22415 | Wnt3; wingless-type MMTV integration site family, member 3 [KO:K00312] |
22416 | Wnt3a; wingless-type MMTV integration site family, member 3A [KO:K00312] |
22417 | Wnt4; wingless-type MMTV integration site family, member 4 [KO:K00408] |
22418 | Wnt5a; wingless-type MMTV integration site family, member 5A [KO:K00444] |
22419 | Wnt5b; wingless-type MMTV integration site family, member 5B [KO:K00444] |
22420 | Wnt6; wingless-type MMTV integration site family, member 6 [KO:K00445] |
22421 | Wnt7a; wingless-type MMTV integration site family, member 7A [KO:K00572] |
22422 | Wnt7b; wingless-type MMTV integration site family, member 7B [KO:K00572] |
20890 | Wnt8a; wingless-type MMTV integration site family, member 8A [KO:K00714] |
22423 | Wnt8b; wingless-type MMTV integration site family, member 8B [KO:K00714] |
216795 | Wnt9a; wingless-type MMTV integration site family, member 9A [KO:K01064] |
22412 | Wnt9b; wingless-type MMTV integration site family, member 9B [KO:K01064] |
22410 | Wnt10b; wingless-type MMTV integration site family, member 10B [KO:K01357] |
22409 | Wnt10a; wingless-type MMTV integration site family, member 10A [KO:K01357] |
22411 | Wnt11; wingless-type MMTV integration site family, member 11 [KO:K01384] |
93735 | Wnt16; wingless-type MMTV integration site family, member 16 [KO:K01558] |
14681 | Gnao1; guanine nucleotide binding protein, alpha O [KO:K04534] |
14682 | Gnaq; guanine nucleotide binding protein, alpha q polypeptide [KO:K04634] |
13544 | Dvl3; dishevelled segment polarity protein 3 [KO:K02353] |
13542 | Dvl1; dishevelled segment polarity protein 1 [KO:K02353] |
13543 | Dvl2; dishevelled segment polarity protein 2 [KO:K02353] |
12387 | Ctnnb1; catenin (cadherin associated protein), beta 1 [KO:K02105] |
21414 | Tcf7; transcription factor 7, T cell specific [KO:K02620] |
21415 | Tcf7l1; transcription factor 7 like 1 (T cell specific, HMG box) [KO:K04490] |
21416 | Tcf7l2; transcription factor 7 like 2, T cell specific, HMG box [KO:K04491] |
16842 | Lef1; lymphoid enhancer binding factor 1 [KO:K04492] |
15461 | Hras; Harvey rat sarcoma virus oncogene [KO:K02833] |
16653 | Kras; Kirsten rat sarcoma viral oncogene homolog [KO:K07827] |
22178 | Tyrp1; tyrosinase-related protein 1 [KO:K00506] [EC:1.14.18.-] |
14677 | Gnai1; guanine nucleotide binding protein (G protein), alpha inhibiting 1 [KO:K04630] |
14679 | Gnai3; guanine nucleotide binding protein (G protein), alpha inhibiting 3 [KO:K04630] |
14678 | Gnai2; guanine nucleotide binding protein (G protein), alpha inhibiting 2 [KO:K04630] |
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Compound |
C01245 | D-myo-Inositol 1,4,5-trisphosphate |
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Reference |
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Authors |
Slominski A, Tobin DJ, Shibahara S, Wortsman J. |
Title |
Melanin pigmentation in mammalian skin and its hormonal regulation. |
Journal |
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Reference |
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Authors |
Busca R, Ballotti R. |
Title |
Cyclic AMP a key messenger in the regulation of skin pigmentation. |
Journal |
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Reference |
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Authors |
Imokawa G. |
Title |
Autocrine and paracrine regulation of melanocytes in human skin and in pigmentary disorders. |
Journal |
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Reference |
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Authors |
Wikberg JE, Muceniece R, Mandrika I, Prusis P, Lindblom J, Post C, Skottner A. |
Title |
New aspects on the melanocortins and their receptors. |
Journal |
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Reference |
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Authors |
Chin L. |
Title |
The genetics of malignant melanoma: lessons from mouse and man. |
Journal |
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Reference |
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Authors |
Miller AJ, Mihm MC Jr. |
Title |
Melanoma. |
Journal |
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Reference |
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Authors |
Saito H, Yasumoto K, Takeda K, Takahashi K, Yamamoto H, Shibahara S. |
Title |
Microphthalmia-associated transcription factor in the Wnt signaling pathway. |
Journal |
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Reference |
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Authors |
Imokawa G, Kobayashi T, Miyagishi M, Higashi K, Yada Y. |
Title |
The role of endothelin-1 in epidermal hyperpigmentation and signaling mechanisms of mitogenesis and melanogenesis. |
Journal |
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Reference |
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Authors |
Park HY, Gilchrest BA. |
Title |
Signaling pathways mediating melanogenesis. |
Journal |
Cell Mol Biol (Noisy-le-grand) 45:919-30 (1999) |
Reference |
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Authors |
Park HY, Perez JM, Laursen R, Hara M, Gilchrest BA. |
Title |
Protein kinase C-beta activates tyrosinase by phosphorylating serine residues in its cytoplasmic domain. |
Journal |
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Reference |
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Authors |
Sturm RA, Teasdale RD, Box NF. |
Title |
Human pigmentation genes: identification, structure and consequences of polymorphic variation. |
Journal |
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Reference |
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Authors |
Hearing VJ. |
Title |
The melanosome: the perfect model for cellular responses to the environment. |
Journal |
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Reference |
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Authors |
Molina DM, Grewal S, Bardwell L. |
Title |
Characterization of an ERK-binding domain in microphthalmia-associated transcription factor and differential inhibition of ERK2-mediated substrate phosphorylation. |
Journal |
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Related pathway |
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KO pathway |
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LinkDB |
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