期刊
CELLULAR AND MOLECULAR LIFE SCIENCES
卷 65, 期 21, 页码 3481-3493出版社
SPRINGER BASEL AG
DOI: 10.1007/s00018-008-8473-8
关键词
Ly6; LU-protein; three-fingered protein; three-finger protein; TGF beta-receptor family
资金
- SIMOPRO/IBITEC/DSV
Extracellular domains of some cellular receptors expressed in the organisms at different levels of development belong to three-fingered protein (TFP) fold. The Homo sapiens genome encodes at least 45 genes containing from one to three TFP domains (TFPDs), namely diverse paralogues of the Ly6 gene, CD59 and the receptors of activins, bone morphogenetic proteins, Mullerian inhibiting substance and transforming growth factor-beta. C4.4a and urokinase/plasminogen activatory receptor contain two and three TFPD repeats, respectively. These diverse proteins have a low overall sequence similarity with each other and their hydrophobicity levels vary to a considerable degree. It is suggested that sequence differentiation within the TFPD led to distinct groups of proteins whose attributes were optimized to fit both the physicochemical properties specific to their functional microenvironment and selective targeting of their highly diversified extracellular cofactors.
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