
Overview:
MYT1 is a member of a family of neural specific, zinc finger-containing DNA-binding proteins which binds to the promoter regions of proteolipid proteins of the central nervous system and plays a role in the developing nervous system. MYT1 of the oligodendrocyte lineage, along with a closely related CCHC zinc finger, is expressed in developing neurons in the mammalian central nervous system(1). The recombinant MYT1 fragments containing either the upstream 2 zinc fingers or the downstream 4 zinc fingers bound the same cis regulatory element in the PLP1 promoter in vitro and DNA binding required Zn(2+), but not other divalent cations (2).
References:
1. Kim, J. G. et.al: Myelin transcription factor 1 (Myt1) of the oligodendrocyte lineage, along with a closely related CCHC zinc finger, is expressed in developing neurons in the mammalian central nervous system. J. Neurosci. Res. 50: 272-290, 1997. 2. Kim, J. G. et.al: Novel member of the zinc finger superfamily: a C(2)-HC finger that recognizes a glia-specific gene. Molec. Cell. Biol. 12: 5632-5639, 1992.
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二、补体(complement,C)是存在于正常人和动物血清与组织液中的一组经活化后具有酶活性的蛋白质。早在19世纪末Bordet即证实,新鲜血液中含有一种不耐热的成分,可辅助和补充特异性抗体,介导免疫溶菌、溶血作用,故称为补体。补体是由30余种可溶性蛋白、膜结合性蛋白和补体受体组成的多分子系统,故称为补体系统(complementsystem)。根据补体系统各成分的生物学功能,可将其分为补体固有成分、补体调控成分和补体受体(CR)。

