NO ELECTRON DENSITY WAS OBSERVED FOR THE FIRST 13 RESIDUES. IN CASES WHERE NO SIDECHAIN ELECTRON ...NO ELECTRON DENSITY WAS OBSERVED FOR THE FIRST 13 RESIDUES. IN CASES WHERE NO SIDECHAIN ELECTRON DENSITY WAS OBSERVED, RESIDUES WERE MODELED AS ALA DURING THE REFINEMENT AND ITERATIVE REBUILDING. IN ACCORDANCE WITH RCSB DIRECTIVES, SUCH RESIDUES HAVE BEEN ASSIGNED RESIDUE TYPES BASED ON THE EXPECTED SEQUENCE FOR RABBIT LIVER CYTOSILIC SHMT (SWS ENTRY P07511); HOWEVER COORDINATES ARE NOT INCLUDED FOR SIDECHAIN ATOMS BEYOND CB. THESE RESIDUES INCLUDE: MODEL SEQUENCE SWS P07511 SEQUENCE HIS A -5 HIS 17 LYS A 7 LYS 26 LYS A 20 LYS 37 GLN A 62 GLN 79 GLU A 69 GLU 86 LYS A 80 LYS 97 GLN A 892 GLN 108 LYS A 1341 LYS 156 LYS A 1342 LYS 157 LYS A 277 LYS 316 LYS A 354 LYS 392 SER A 355 SER 393 LYS A 375 LYS 415 PRO A 3962 PRO 440 ARG A 3963 ARG 441 LYS A 3991 LYS 445 LYS A 3994 LYS 448 LYS A 401 LYS 450 LYS A 405 LYS 456 ARG A 407 ARG 459 ARG A 410 ARG 462 GLN A 413 GLN 466 LEU A 4181 LEU 474 TRP B -8 TRP 14 HIS B -5 HIS 17 LYS B 7 LYS 26 LYS B 20 LYS 37 ARG B 41 ARG 58 LYS B 1341 LYS 156 LYS B 168 LYS 195 VAL B 2441 VAL 272 SER B 2443 SER 274 VAL B 2444 VAL 275 LYS B 245 LYS 281 ILE B 283 ILE 283 LYS B 354 LYS 393 SER B 355 SER 394 LEU B 357 LEU 396 ARG B 358 ARG 397 LYS B 380 LYS 419 ARG B 3963 ARG 441 LYS B 3991 LYS 445 LYS B 3994 LYS 448 GLU B 400 GLU 449 LYS B 401 LYS 450 LYS B 405 LYS 456 ARG B 407 ARG 459 GLN B 413 GLN 466
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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: 5
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試料調製
結晶
マシュー密度: 2.85 Å3/Da / 溶媒含有率: 57 %
結晶化
手法: 蒸気拡散法, ハンギングドロップ法 / pH: 6 詳細: 20MM K2HPO4, KH2PO4, 25MM POTASIUM MES OR SODIUM HEPES, PH 7.0 0.2 MM 2-MERCAPTOETHANOL, 3% PEG 400, pH 6.0, VAPOR DIFFUSION, HANGING DROP
結晶化
*PLUS
pH: 7
溶液の組成
*PLUS
ID
濃度
一般名
Crystal-ID
Sol-ID
化学式
詳細
1
20mM
1
1
K2HPO4/KH2/PO4
2
25mM
KMES
1
1
orsodiumHEPES
3
0.2mM
EDTA
1
1
4
5mM
2-mercaptoethanol
1
1
5
3 %
PEG4000
1
1
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データ収集
回折
平均測定温度: 298 K
放射光源
由来: 回転陽極 / タイプ: RIGAKU RU200 / 波長: 1.5418
検出器
タイプ: RIGAKU / 検出器: IMAGE PLATE
放射
モノクロメーター: GRAPHITE / 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: 1.5418 Å / 相対比: 1
反射
解像度: 2.8→35 Å / Num. obs: 28327 / % possible obs: 100 % / Observed criterion σ(I): -3 / 冗長度: 19 % / Biso Wilson estimate: 88.8 Å2 / Rmerge(I) obs: 0.173 / Net I/σ(I): 10.9
反射 シェル
*PLUS
Mean I/σ(I) obs: 1
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解析
ソフトウェア
名称
バージョン
分類
PHASES
位相決定
CNS
0.5
精密化
DENZO
データ削減
SCALEPACK
データスケーリング
精密化
構造決定の手法: 多重同系置換・異常分散 / 解像度: 2.8→20 Å / Rfactor Rfree error: 0.005 / Data cutoff high rms absF: 2580178.46 / Isotropic thermal model: GROUP / 交差検証法: THROUGHOUT / σ(F): 0 詳細: PROTEIN+PLP REFINED WITH TORSION ANGLE DYNAMICS, WATERS HELD FIXED. WATERS REFINED WITH CARTESIAN DYNAMICS, PROTEIN + PLP HELD FIXED. POSITIONAL NCS RESTRAINTS APPLIED BETWEEN EQUIVALENT ...詳細: PROTEIN+PLP REFINED WITH TORSION ANGLE DYNAMICS, WATERS HELD FIXED. WATERS REFINED WITH CARTESIAN DYNAMICS, PROTEIN + PLP HELD FIXED. POSITIONAL NCS RESTRAINTS APPLIED BETWEEN EQUIVALENT RESIDUES IN CHAINS A + B. RESIDUES 9992- 1, 244-247, 4181-4180 AND 2291 WERE NOT RESTRAINED