- PDB-3jyc: Crystal structure of the eukaryotic strong inward-rectifier K+ ch... -
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基本情報
登録情報
データベース: PDB / ID: 3jyc
タイトル
Crystal structure of the eukaryotic strong inward-rectifier K+ channel Kir2.2 at 3.1 Angstrom resolution
要素
Inward-rectifier K+ channel Kir2.2
キーワード
METAL TRANSPORT / a transmembrane pore and a cytoplasmic pore
機能・相同性
機能・相同性情報
Activation of G protein gated Potassium channels / Classical Kir channels / Phase 4 - resting membrane potential / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / inward rectifier potassium channel activity / regulation of monoatomic ion transmembrane transport / monoatomic ion channel complex / potassium ion import across plasma membrane / potassium ion transport / protein homotetramerization ...Activation of G protein gated Potassium channels / Classical Kir channels / Phase 4 - resting membrane potential / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / inward rectifier potassium channel activity / regulation of monoatomic ion transmembrane transport / monoatomic ion channel complex / potassium ion import across plasma membrane / potassium ion transport / protein homotetramerization / 生体膜 / identical protein binding / 細胞膜 類似検索 - 分子機能
THE ELECTRON DENSITY FOR RESIDUES 61-69 IS NOT OBSERVED EVEN THOUGH THESE AMINO ACIDS ARE PRESENT ...THE ELECTRON DENSITY FOR RESIDUES 61-69 IS NOT OBSERVED EVEN THOUGH THESE AMINO ACIDS ARE PRESENT IN THE CONSTRUCT. THE PROTEIN IS A TETRAMER WHICH CAN BE GENERATED BY THE CRYSTAL SYMMETRY (DESCRIBED IN REMARK 350) AND THE LACK OF DENSITY FOR RESIDUES 61-69 ALLOWS FOR TWO POSSIBLE CONNECTIVITIES. GIVEN THE DISTANCES RESIDUES 43-60 MOST LIKELY CONNECT TO RESIDUES 70-372 OF A NEIGHBORING SUBUNIT.
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実験情報
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実験
実験
手法: X線回折 / 使用した結晶の数: 1
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試料調製
結晶
マシュー密度: 4.4 Å3/Da / 溶媒含有率: 72.03 %
結晶化
温度: 277.1 K / 手法: 蒸気拡散法, ハンギングドロップ法 詳細: 7-20% PEG 400, 0.5M sodium or potassium chloride, 50mM Buffer, pH 6-9.5, VAPOR DIFFUSION, HANGING DROP, temperature 277.1K PH範囲: 6-9.5