3gwi is a 1 chain structure with sequence from Escherichia coli. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
The structure of the nucleotide-binding domain of the Mg-ATPase MgtA from Escherichia coli has been solved and refined to 1.6 A resolution. The structure is made up of a six-stranded beta-sheet and a bundle of three alpha-helices, with the nucleotide-binding site sandwiched in between. The MgtA nucleotide-binding domain is shorter and more compact compared with that of the related Ca-ATPase and lacks one of the beta-strands at the edge of the beta-sheet. The ATP-binding pocket is surrounded by three sequence and structural motifs known from other P-type ATPases and a fourth unique motif that is found only in Mg-ATPases. This motif consists of a short polypeptide stretch running very close to the ATP-binding site, while in Ca-ATPase the binding site is more open, with the corresponding polypeptide segment folded away from the active site.
The structure of Mg-ATPase nucleotide-binding domain at 1.6 A resolution reveals a unique ATP-binding motif.,Hakansson KO Acta Crystallogr D Biol Crystallogr. 2009 Nov;65(Pt 11):1181-6. Epub 2009, Oct 22. PMID:19923713[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
↑ Hakansson KO. The structure of Mg-ATPase nucleotide-binding domain at 1.6 A resolution reveals a unique ATP-binding motif. Acta Crystallogr D Biol Crystallogr. 2009 Nov;65(Pt 11):1181-6. Epub 2009, Oct 22. PMID:19923713 doi:10.1107/S090744490903306X
