2rec is a 6 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 RecA protein forms a hexameric ring that is similar to the core of the F1-ATPase. Several lines of evidence suggest that this hexamer may be a structural homologue of ring helicases.
The RecA hexamer is a structural homologue of ring helicases.,Yu X, Egelman EH Nat Struct Biol. 1997 Feb;4(2):101-4. PMID:9033586[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.