2JJ9

Crystal structure of myosin-2 in complex with ADP-metavanadate

2JJ9 の概要

• エントリーDOI: 10.2210/pdb2jj9/pdb
• 関連するPDBエントリー: 1D0X 1D0Y 1D0Z 1D1A 1D1B 1D1C 1FMV 1FMW 1G8X 1JWY 1JX2 1LVK 1MMA 1MMD 1MMG 1MMN 1MND 1MNE 1Q5G 1VOM 1W9I 1W9J 1W9K 1W9L 1YV3 2AKA 2JHR
• 分子名称: MYOSIN-2 HEAVY CHAIN, ADP METAVANADATE, MAGNESIUM ION, ... (4 entities in total)
• 機能のキーワード: calmodulin-binding, nucleotide-binding, motor protein, actin-binding, phosphoprotein, myosin, cytoplasm, atp-analog, methylation, coiled coil, atp-binding, motor-domain, contractile protein
• 由来する生物種: DICTYOSTELIUM DISCOIDEUM (SLIME MOLD)
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 90566.02

構造登録者

Fedorov, R.,Boehl, M.,Tsiavaliaris, G.,Hartmann, F.K.,Baruch, P.,Brenner, B.,Martin, R.,Knoelker, H.J.,Gutzeit, H.O.,Manstein, D.J. (登録日: 2008-03-25, 公開日: 2009-01-13, 最終更新日: 2023-12-13)

主引用文献

Fedorov, R.,Bohl, M.,Tsiavaliaris, G.,Hartmann, F.K.,Taft, M.H.,Baruch, P.,Brenner, B.,Martin, R.,Knolker, H.,Gutzeit, H.O.,Manstein, D.J.
The Mechanism of Pentabromopseudilin Inhibition of Myosin Motor Activity.
Nat.Struct.Mol.Biol., 16:80-, 2009

PubMed Abstract: We have identified pentabromopseudilin (PBP) as a potent inhibitor of myosin-dependent processes such as isometric tension development and unloaded shortening velocity. PBP-induced reductions in the rate constants for ATP binding, ATP hydrolysis and ADP dissociation extend the time required per myosin ATPase cycle in the absence and presence of actin. Additionally, coupling between the actin and nucleotide binding sites is reduced in the presence of the inhibitor. The selectivity of PBP differs from that observed with other myosin inhibitors. To elucidate the binding mode of PBP, we crystallized the Dictyostelium myosin-2 motor domain in the presence of Mg(2+)-ADP-meta-vanadate and PBP. The electron density for PBP is unambiguous and shows PBP to bind at a previously unknown allosteric site near the tip of the 50-kDa domain, at a distance of 16 A from the nucleotide binding site and 7.5 A away from the blebbistatin binding pocket.

PubMed: 19122661
DOI: 10.1038/NSMB.1542

実験手法

X-RAY DIFFRACTION (2.3 Å)