SH3结构域(英语:SH3 domain,全称Src同源3结构域,英语:SRC Homology 3 Domain)是最早在病毒接头蛋白v-Crk及酪氨酸激酶SrcAbl中发现的长约60个氨基酸残基的保守结构域[1][2],在磷酸肌醇3-激酶Ras超家族G蛋白cdc25中也存在[3][4][5]

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SH3 domain
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α-血影蛋白的SH3结构域的飘带图,PDB代码1SHG,N-端为蓝色,C-端为红色
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标志SH3_1
PfamPF00018旧版
Pfam宗系CL0010旧版
InterPro英语InterProIPR001452
SMART英语Simple Modular Architecture Research ToolSM00326
PROSITE英语PROSITEPS50002
SCOP英语Structural Classification of Proteins1shf / SUPFAM
CDD英语Conserved Domain Databasecd00174
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