- PDB-2awa: Crystal structure of DNA polymerase III, beta chain (EC 2.7.7.7) ... -
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基本情報
登録情報
データベース: PDB / ID: 2awa
タイトル
Crystal structure of DNA polymerase III, beta chain (EC 2.7.7.7) (np_344555.1) from STREPTOCOCCUS PNEUMONIAE TIGR4 at 2.50 A resolution
要素
DNA polymerase III, beta chain
キーワード
TRANSFERASE / np_344555.1 / DNA polymerase III / beta chain (EC 2.7.7.7) / Structural Genomics / Joint Center for Structural Genomics / JCSG / Protein Structure Initiative / PSI
機能・相同性
機能・相同性情報
DNA polymerase III complex / 3'-5' exonuclease activity / DNA replication / DNA-directed DNA polymerase activity / DNA binding / cytoplasm 類似検索 - 分子機能
DNA Polymerase III; Chain A, domain 2 / DNA Polymerase III, subunit A, domain 2 / Box / Proliferating Cell Nuclear Antigen / Proliferating Cell Nuclear Antigen - #10 / DNA polymerase III, beta sliding clamp / DNA polymerase III, beta sliding clamp, N-terminal / DNA polymerase III, beta sliding clamp, C-terminal / DNA polymerase III, beta sliding clamp, central / DNA polymerase III beta subunit, N-terminal domain ...DNA Polymerase III; Chain A, domain 2 / DNA Polymerase III, subunit A, domain 2 / Box / Proliferating Cell Nuclear Antigen / Proliferating Cell Nuclear Antigen - #10 / DNA polymerase III, beta sliding clamp / DNA polymerase III, beta sliding clamp, N-terminal / DNA polymerase III, beta sliding clamp, C-terminal / DNA polymerase III, beta sliding clamp, central / DNA polymerase III beta subunit, N-terminal domain / DNA polymerase III beta subunit, central domain / DNA polymerase III beta subunit, C-terminal domain / DNA polymerase III beta subunit / Roll / Alpha Beta 類似検索 - ドメイン・相同性
マシュー密度: 2.76 Å3/Da / 溶媒含有率: 55.16 % 解説: THE EXPERIMENTAL MAD MAP IS POOR WITHOUT NCS AVERAGING. A MONOMER POLY-ALANINE MODEL OF 1MMI IS USED AS TEMPLATE FOR THE LOCATION OF FOUR MONOMERS IN THE EXPERIMENTAL MAP. THE MAD MAP IS ...解説: THE EXPERIMENTAL MAD MAP IS POOR WITHOUT NCS AVERAGING. A MONOMER POLY-ALANINE MODEL OF 1MMI IS USED AS TEMPLATE FOR THE LOCATION OF FOUR MONOMERS IN THE EXPERIMENTAL MAP. THE MAD MAP IS SIGNIFICANTLY IMPROVED WITH NCS AVERAGING WHICH ALLOWS THE COMPLETION OF THE MODEL FROM THE INITIAL PHASED MOLECULAR REPLACEMENT SOLUTION. THE IMPROVED PHASES RESULTING FROM NCS AVERAGING WERE USED AS PHASE RESTRAINTS IN THE REFMAC REFINEMENT.
解像度: 2.5→30 Å / Cor.coef. Fo:Fc: 0.955 / Cor.coef. Fo:Fc free: 0.924 / SU B: 21.693 / SU ML: 0.229 / TLS residual ADP flag: LIKELY RESIDUAL / 交差検証法: THROUGHOUT / ESU R: 0.535 / ESU R Free: 0.292 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. MANY SURFACE SIDE CHAINS ARE TRIMMED DUE TO LACK OF DEFINITIVE ELECTRON DENSITIES.
Rfactor
反射数
%反射
Selection details
Rfree
0.25
3044
5.1 %
RANDOM
Rwork
0.192
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all
0.195
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obs
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56494
48.91 %
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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