信號轉導轉接蛋白或信號轉導銜接蛋白（英語：Signal transducing adaptor proteins）是信號轉導通路中的重要蛋白質。轉接蛋白上有着各種能與其它蛋白結合的結構域，能形成各種信號複合體。這些蛋白質往往本身缺乏酶的活性[1]，而是通過特異性的蛋白-蛋白交互作用形成蛋白質複合體來活化下游信號通路。常見的轉接蛋白有MyD88、Grb2和SHC1等。
 | 此條目需要補充更多來源。 (2015年1月) |
基因
編碼轉接蛋白的基因有：
- BCAR3 – Breast cancer anti-estrogen resistance protein 3
- GRAP – GRB2-related adaptor protein
- GRAP2 – GRB2-related adaptor protein 2
- LDLRAP1 – low-density lipoprotein receptor adaptor protein 1
- NCK1 – NCK adaptor protein 1
- NCK2 – NCK adaptor protein 2
- NOS1AP – nitric oxide synthase 1 (neuronal) adaptor protein
- PIK3AP1 – phosphoinositide-3-kinase adaptor protein 1
- SH2B1 – SH2B adaptor protein 1
- SH2B2 – SH2B adaptor protein 2
- SH2B3 – SH2B adaptor protein 3
- SH2D3A -SH2 domain containing 3A
- SH2D3C – SH2 domain containing 3C
- SHB – Src homology 2 domain containing adaptor protein B
- SLC4A1AP – solute carrier family 4 (anion exchanger), member 1, adaptor protein
- GAB2 – GRB2-associated binding protein 2
參考文獻
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