THE BIOLOGICALLY RELEVANT OLIGOMERIZATION STATE OF THE MOLECULE IS A DIMER (BIOMOLECULES 4,5,6), WHICH HAS BEEN CONFIRMED BY ANALYTICAL CENTRIFUGATION.
EXTRA LEU BETWEEN POSITIONS 1 & 2 OF O34527 SEQUENCE
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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: 2.96 Å3/Da / 溶媒含有率: 55 % 解説: STRUCTURE WAS SOLVED WITH DATA COLLECTED ON PROXIMA 1 FROM A CRYSTAL, CYMR_13, OF THE SEMET PROTEIN.
結晶化
温度: 291 K / 手法: 蒸気拡散法, ハンギングドロップ法 詳細: OPTIMIZATION OF INITIAL HITS WAS PURSUED MANUALLY IN LINBRO PLATES WITH A HANGING DROP SETUP. THE BEST CRYSTALS WERE OBTAINED BY MIXING 1.5 UL OF NATIVE CYMR PROTEIN OR SELENOMETHIONINE ...詳細: OPTIMIZATION OF INITIAL HITS WAS PURSUED MANUALLY IN LINBRO PLATES WITH A HANGING DROP SETUP. THE BEST CRYSTALS WERE OBTAINED BY MIXING 1.5 UL OF NATIVE CYMR PROTEIN OR SELENOMETHIONINE LABELED PROTEIN AT 14 MG/ML WITH 1.5 UL OF THE RESERVOIR SOLUTION CONTAINING 1.6 M AMMONIUM SULPHATE AND 0.1 M TRIS-HCL PH 8.5 AT 18 C DEGREES. THE CRYSTALS APPEARED WITHIN ONE WEEK AND HAD DIMENSIONS OF UP TO 0.1 MM X 0.1 MM X 0.2 MM. A SINGLE CRYSTAL OF THE CYMR PROTEIN WAS FLASH-FROZEN IN LIQUID NITROGEN USING A MIXTURE OF 50% PARATONE AND 50% PARAFFIN OIL AS CRYOPROTECTANT.
プロトコル: SINGLE WAVELENGTH / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray
放射波長
波長: 0.983 Å / 相対比: 1
反射
解像度: 2→17.84 Å / Num. obs: 73831 / % possible obs: 99 % / Observed criterion σ(I): -3 / 冗長度: 3.64 % / Biso Wilson estimate: 36.49 Å2 / Rmerge(I) obs: 0.06 / Net I/σ(I): 14.42
反射 シェル
解像度: 2→2.05 Å / 冗長度: 3.68 % / Rmerge(I) obs: 0.74 / Mean I/σ(I) obs: 2.03 / % possible all: 99.6
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解析
ソフトウェア
名称
バージョン
分類
BUSTER
2.8.0
精密化
XDS
データ削減
XDS
データスケーリング
精密化
構造決定の手法: 単波長異常分散 開始モデル: NONE 解像度: 2→17.84 Å / Cor.coef. Fo:Fc: 0.9537 / Cor.coef. Fo:Fc free: 0.941 / 交差検証法: THROUGHOUT / σ(F): 0 詳細: MISSING RESIDUES - 60A-63A 130C -139C, 129D-139D, 130E-139E, 130F-139F. MISSING SIDECHAINS - 92C. RESIDUES WITH MULTIPLE CONFORMATIONS - 123A, 20B, 44B, 44D, 57D, 81E, 6F, 98F. UNIDENTIFIED ...詳細: MISSING RESIDUES - 60A-63A 130C -139C, 129D-139D, 130E-139E, 130F-139F. MISSING SIDECHAINS - 92C. RESIDUES WITH MULTIPLE CONFORMATIONS - 123A, 20B, 44B, 44D, 57D, 81E, 6F, 98F. UNIDENTIFIED FOFC OBJECTS, UFOS. UFO-1, FLATTENED BLOB NEAR N THR-6, POSSIBLE MIXTURE OF SULPHATE AND CHLORIDE ANIONS, LOCATED INSIDE HEXAMER. UFO-2, ELONGATED AND BRANCHED BLOB NEAR OG SER-28, POSSIBLE DISORDER IN CRYSTAL CONTACTS WITH C- -TERMINI. UFO-3, ELONGATED AND BRANCHED BLOB NEAR N GLY-25, POSSIBLE DISORDER IN CRYSTAL CONTACTS WITH C- TERMINI. UFO-4, EXTENDED AND BRANCHED BLOB NEAR N GLU-40 AND SER- -39, POSSIBLE DISORDER IN CRYSTAL CONTACT WITH ARG-82 SIDECHAIN. UNIDENTIFIED FOFC DENSITY OBJECTS OCCUR NEAR N THR-6, OG SER-28, N GLY-25, N GLU-40 AND SER-39. ATTEMPTS TO MODEL THESE BLOBS CORRECTLY AS WATERS, CHLORIDES OR SULPHATES WERE UNSUCCESSFUL. THESE BLOBS OR UFOS HAVE BEEN LEFT UNMODELLED.