小眼球症関連転写因子(しょうがんきゅうしょうかんれんてんしゃいんし、英: microphthalmia-associated transcription factor、MITF)は、ヒトではMITF遺伝子によってコードされるタンパク質である。bHLHe32(class E basic helix-loop-helix protein 32)としても知られる。
MAZR(Myc-associated zinc-finger protein related factor)はMITFのLZドメインと相互作用する。共に発現した場合には、MAZRとMITFの双方がマウスのmMCP-6遺伝子のプロモーター活性を増加させる。MAZRとMITFは共にmMCP-6遺伝子をトランス活性化する。また、MAZRはMITFとともにマスト細胞の形質発現にも関与している[56]。
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^ ab“MITF gene”. Genetics Home Reference. National Institutes of Health, U.S. Department of Health & Human Services. 2021年11月22日閲覧。
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