- PDB-4jpb: The structure of a ternary complex between CheA domains P4 and P5... -
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基本情報
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データベース: PDB / ID: 4jpb
タイトル
The structure of a ternary complex between CheA domains P4 and P5 with CheW and with an unzipped fragment of TM14, a chemoreceptor analog from Thermotoga maritima.
要素
Chemotaxis protein CheA
Chemotaxis protein CheW
Methyl-accepting chemotaxis protein
キーワード
IMMUNE SYSTEM / Ternary complex / Transmembrane Signaling Two component system Receptor / Histidine Kinase Adaptor protein / Membrane
機能・相同性
機能・相同性情報
histidine kinase / phosphorelay sensor kinase activity / chemotaxis / protein domain specific binding / signal transduction / ATP binding / membrane / cytosol / cytoplasm 類似検索 - 分子機能
Single alpha-helices involved in coiled-coils or other helix-helix interfaces - #3200 / CheA-289, Domain 4 / Chemotaxis protein CheW / Chemotaxis protein CheA, P2 response regulator-binding / Chemotaxis protein CheA, P2 response regulator-binding domain superfamily / P2 response regulator binding domain / Histidine kinase CheA-like, homodimeric domain / CheY-binding domain of CheA / Histidine kinase CheA-like, homodimeric domain superfamily / Signal transducing histidine kinase, homodimeric domain ...Single alpha-helices involved in coiled-coils or other helix-helix interfaces - #3200 / CheA-289, Domain 4 / Chemotaxis protein CheW / Chemotaxis protein CheA, P2 response regulator-binding / Chemotaxis protein CheA, P2 response regulator-binding domain superfamily / P2 response regulator binding domain / Histidine kinase CheA-like, homodimeric domain / CheY-binding domain of CheA / Histidine kinase CheA-like, homodimeric domain superfamily / Signal transducing histidine kinase, homodimeric domain / Signal transducing histidine kinase, homodimeric domain / : / CheW-like domain profile. / CheW-like domain / CheW-like domain superfamily / CheW-like domain / Two component signalling adaptor domain / Histidine Phosphotransfer domain / Hpt domain / Histidine-containing phosphotransfer (HPt) domain profile. / Signal transduction histidine kinase, phosphotransfer (Hpt) domain / HPT domain superfamily / Methyl-accepting chemotaxis protein (MCP) signalling domain / Methyl-accepting chemotaxis protein (MCP) signalling domain / Bacterial chemotaxis sensory transducers domain profile. / Methyl-accepting chemotaxis-like domains (chemotaxis sensory transducer). / Signal transduction histidine kinase-related protein, C-terminal / Signal transduction histidine kinase, dimerisation/phosphoacceptor domain superfamily / Histidine kinase domain / Histidine kinase domain profile. / SH3 Domains / Single alpha-helices involved in coiled-coils or other helix-helix interfaces / Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase / Helix non-globular / Histidine kinase-like ATPases / Histidine kinase/HSP90-like ATPase / Special / Histidine kinase/HSP90-like ATPase superfamily / SH3 type barrels. / OB fold (Dihydrolipoamide Acetyltransferase, E2P) / Roll / Beta Barrel / Mainly Beta 類似検索 - ドメイン・相同性
Chemotaxis protein CheA / Chemotaxis protein CheW / Methyl-accepting chemotaxis protein, putative 類似検索 - 構成要素
The receptor fragment is dimerized by crystal symmetry to produce a 4-helix bundle. The assembly state of the receptor kinase arrays is complex and extended, but the ring structure formed by the alternating CheA and CheW units built by the crystal symmetry of this structure are thought to be important features of the assembled system.
温度: 298 K / 手法: 蒸気拡散法, ハンギングドロップ法 / pH: 8.5 詳細: Cubic shaped crystals (50x50x50 um3) were grown from a mixture of 520 uM Tm14s, 457 uM CheA 354 and 121 uM CheW after 1 month by vapor diffusion from a 2 ul drop (1:1 mixture of protein and ...詳細: Cubic shaped crystals (50x50x50 um3) were grown from a mixture of 520 uM Tm14s, 457 uM CheA 354 and 121 uM CheW after 1 month by vapor diffusion from a 2 ul drop (1:1 mixture of protein and reservoir: 500 ul reservoir of 0.2 M sodium acetate trihydrate, 0.1 M Tris (pH 8.5), 15% w/v polyethylene glycol 4,000), VAPOR DIFFUSION, HANGING DROP, temperature 298K