National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)
HL016037-50
米国
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
GM133598
米国
European Molecular Biology Organization (EMBO)
ALTF 1071-2017
European Union
Human Frontier Science Program (HFSP)
LT000174/2018
フランス
引用
ジャーナル: bioRxiv / 年: 2024 タイトル: Beta-arrestin 1 mediated Src activation via Src SH3 domain revealed by cryo-electron microscopy. 著者: Natalia Pakharukova / Brittany N Thomas / Harsh Bansia / Linus Li / Rinat R Abzalimov / Jihee Kim / Alem W Kahsai / Biswaranjan Pani / Dana K Bassford / Shibo Liu / Xingdong Zhang / Amedee ...著者: Natalia Pakharukova / Brittany N Thomas / Harsh Bansia / Linus Li / Rinat R Abzalimov / Jihee Kim / Alem W Kahsai / Biswaranjan Pani / Dana K Bassford / Shibo Liu / Xingdong Zhang / Amedee des Georges / Robert J Lefkowitz / 要旨: Beta-arrestins (βarrs) are key regulators and transducers of G-protein coupled receptor signaling; however, little is known of how βarrs communicate with their downstream effectors. Here, we use ...Beta-arrestins (βarrs) are key regulators and transducers of G-protein coupled receptor signaling; however, little is known of how βarrs communicate with their downstream effectors. Here, we use cryo-electron microscopy to elucidate how βarr1 recruits and activates non-receptor tyrosine kinase Src. βarr1 binds Src SH3 domain via two distinct sites: a polyproline site in the N-domain and a non-proline site in the central crest region. At both sites βarr1 interacts with the aromatic surface of SH3 which is critical for Src autoinhibition, suggesting that βarr1 activates Src by SH3 domain displacement. Binding of SH3 to the central crest region induces structural rearrangements in the β-strand V, finger, and middle loops of βarr1 and interferes with βarr1 coupling to the receptor core potentially impacting receptor desensitization and downstream signaling.
超分子 #1: Beta-arrestin 1 bound to a G protein-coupled receptor phosphopept...
超分子
名称: Beta-arrestin 1 bound to a G protein-coupled receptor phosphopeptide and antibody fragment Fab30 in complex with SH3 domain of Src タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all
由来(天然)
生物種: Rattus norvegicus (ドブネズミ)
-
分子 #1: Antibody fragment Fab30, heavy chain
分子
名称: Antibody fragment Fab30, heavy chain / タイプ: protein_or_peptide / ID: 1 / コピー数: 1 / 光学異性体: LEVO