- PDB-4me8: Crystal structure of a signal peptidase I (EF3073) from Enterococ... -
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IDまたはキーワード:
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基本情報
登録情報
データベース: PDB / ID: 4me8
タイトル
Crystal structure of a signal peptidase I (EF3073) from Enterococcus faecalis V583 at 2.27 A resolution
要素
Signal peptidase I
キーワード
HYDROLASE / PF00717 family / Peptidase_S24 / Structural Genomics / Joint Center for Structural Genomics / JCSG / Protein Structure Initiative / PSI-BIOLOGY
機能・相同性
機能・相同性情報
signal peptidase I / signal peptide processing / serine-type endopeptidase activity / plasma membrane 類似検索 - 分子機能
Peptidase S26A, signal peptidase I, lysine active site / Signal peptidases I lysine active site. / Peptidase S26A, signal peptidase I / Signal peptidase, peptidase S26 / Peptidase S26A, signal peptidase I, conserved site / Signal peptidases I signature 3. / Peptidase S26A, signal peptidase I, serine active site / Signal peptidases I serine active site. / Peptidase S26 / Umud Fragment, subunit A ...Peptidase S26A, signal peptidase I, lysine active site / Signal peptidases I lysine active site. / Peptidase S26A, signal peptidase I / Signal peptidase, peptidase S26 / Peptidase S26A, signal peptidase I, conserved site / Signal peptidases I signature 3. / Peptidase S26A, signal peptidase I, serine active site / Signal peptidases I serine active site. / Peptidase S26 / Umud Fragment, subunit A / Umud Fragment, subunit A / LexA/Signal peptidase-like superfamily / Ribbon / Mainly Beta 類似検索 - ドメイン・相同性
THIS CONSTRUCT WAS EXPRESSED WITH A PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG WAS REMOVED WITH ...THIS CONSTRUCT WAS EXPRESSED WITH A PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG WAS REMOVED WITH TEV PROTEASE LEAVING ONLY A GLYCINE (0) FOLLOWED BY RESIDUES 29-178 OF THE TARGET 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: 1.73 Å3/Da / 溶媒含有率: 28.92 %
結晶化
温度: 293 K / 手法: 蒸気拡散法, シッティングドロップ法 / pH: 6.2 詳細: 20.00% polyethylene glycol 3350, 0.200M ammonium fluoride, No Buffer pH 6.2, Additive: 0.001 M leupeptin, NANODROP', VAPOR DIFFUSION, SITTING DROP, temperature 293K
タイプ: MARMOSAIC 325 mm CCD / 検出器: CCD / 日付: 2011年1月26日 詳細: Flat mirror (vertical focusing); single crystal Si(111) bent monochromator (ho rizontal focusing)
放射
モノクロメーター: single crystal Si(111) bent / プロトコル: MAD / 単色(M)・ラウエ(L): M / 散乱光タイプ: x-ray
放射波長
ID
波長 (Å)
相対比
1
0.91837
1
2
0.97944
1
3
0.97894
1
反射
解像度: 2.27→28.174 Å / Num. obs: 6200 / % possible obs: 99.4 % / Observed criterion σ(I): -3 / Biso Wilson estimate: 47.346 Å2 / Rmerge(I) obs: 0.077 / Net I/σ(I): 11.93
反射 シェル
Diffraction-ID: 1
解像度 (Å)
最高解像度 (Å)
Rmerge(I) obs
Mean I/σ(I) obs
Num. measured obs
Num. unique obs
% possible all
2.27-2.35
0.777
1.7
3675
1057
99.1
2.35-2.44
0.61
2.3
4016
998
100
2.44-2.56
0.535
2.5
4566
1156
99.7
2.56-2.69
0.378
3.7
4143
1046
99.8
2.69-2.86
0.215
5.9
4149
1069
99.6
2.86-3.08
0.132
8.8
3803
1056
99.2
3.08-3.39
0.091
13.9
4319
1070
99.9
3.39-3.87
0.054
21.6
4127
1043
99.9
3.87-4.87
0.037
27.8
3894
1065
98.6
4.87
0.033
30.8
4212
1094
98.3
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位相決定
位相決定
手法: 多波長異常分散
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解析
ソフトウェア
名称
バージョン
分類
NB
MolProbity
3beta29
モデル構築
PDB_EXTRACT
3.1
データ抽出
SHELX
位相決定
SHARP
位相決定
REFMAC
5.7.0032
精密化
XDS
データ削減
XSCALE
データスケーリング
SHELXD
位相決定
精密化
構造決定の手法: 多波長異常分散 / 解像度: 2.27→28.174 Å / Cor.coef. Fo:Fc: 0.948 / Cor.coef. Fo:Fc free: 0.926 / Occupancy max: 1 / Occupancy min: 0.5 / SU B: 18.192 / SU ML: 0.228 / 交差検証法: THROUGHOUT / σ(F): 0 / ESU R: 0.359 / ESU R Free: 0.248 立体化学のターゲット値: MAXIMUM LIKELIHOOD WITH PHASES 詳細: 1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2. ATOM RECORDS CONTAIN SUM OF TLS AND RESIDUAL B FACTORS. 3. ANISOU RECORDS CONTAIN SUM OF TLS AND RESIDUAL U FACTORS. 4. WATERS WERE ...詳細: 1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2. ATOM RECORDS CONTAIN SUM OF TLS AND RESIDUAL B FACTORS. 3. ANISOU RECORDS CONTAIN SUM OF TLS AND RESIDUAL U FACTORS. 4. WATERS WERE EXCLUDED FROM AUTOMATIC TLS ASSIGNMENT. 5. A MET-INHIBITION PROTOCOL WAS USED FOR SELENOMETHIONINE INCORPORATION DURING PROTEIN EXPRESSION. THE OCCUPANCY OF THE SE ATOMS IN THE MSE RESIDUES WAS REDUCED TO 0.75 FOR THE REDUCED SCATTERING POWER DUE TO PARTIAL S-MET INCORPORATION. 6. 1,2-ETHANEDIOL (EDO) MOLECULES FROM THE CRYOPROTECTION SOLUTION ARE MODELED. 7. ELECTRON DENSITY IS DISORDERED AROUND RAMACHANDRAN OUTLIER RESIDUE A109.
Rfactor
反射数
%反射
Selection details
Rfree
0.258
486
7.9 %
RANDOM
Rwork
0.2124
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-
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obs
0.2162
6146
99.53 %
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溶媒の処理
イオンプローブ半径: 0.8 Å / 減衰半径: 0.8 Å / VDWプローブ半径: 1.2 Å / 溶媒モデル: BABINET MODEL WITH MASK