1G5P

NITROGENASE IRON PROTEIN FROM AZOTOBACTER VINELANDII

1G5P の概要

• エントリーDOI: 10.2210/pdb1g5p/pdb
• 関連するPDBエントリー: 1G1M 2NIP
• 分子名称: NITROGENASE IRON PROTEIN, IRON/SULFUR CLUSTER (3 entities in total)
• 機能のキーワード: iron protein, oxidoreductase
• 由来する生物種: Azotobacter vinelandii
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 63185.73

構造登録者

Strop, P.,Takahara, P.M.,Chiu, H.J.,Angove, H.C.,Burgess, B.K.,Rees, D.C. (登録日: 2000-11-01, 公開日: 2001-01-31, 最終更新日: 2023-08-09)

主引用文献

Strop, P.,Takahara, P.M.,Chiu, H.,Angove, H.C.,Burgess, B.K.,Rees, D.C.
Crystal structure of the all-ferrous [4Fe-4S]0 form of the nitrogenase iron protein from Azotobacter vinelandii.
Biochemistry, 40:651-656, 2001

PubMed Abstract: The structure of the nitrogenase iron protein from Azotobacter vinelandii in the all-ferrous [4Fe-4S](0) form has been determined to 2.25 A resolution by using the multiwavelength anomalous diffraction (MAD) phasing technique. The structure demonstrates that major conformational changes are not necessary either in the iron protein or in the cluster to accommodate cluster reduction to the [4Fe-4S](0) oxidation state. A survey of [4Fe-4S] clusters coordinated by four cysteine ligands in proteins of known structure reveals that the [4Fe-4S] cluster of the iron protein has the largest accessible surface area, suggesting that solvent exposure may be relevant to the ability of the iron protein to exist in three oxidation states.

PubMed: 11170381
DOI: 10.1021/bi0016467

実験手法

X-RAY DIFFRACTION (2.2 Å)