1aa2 is a 1 chain structure with sequence from Homo sapiens. 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 three-dimensional structure of the calponin homology domain present in many actin binding cytoskeletal and signal-transducing proteins has been determined at 2.0 A resolution.
Crystal structure of a calponin homology domain.,Djinovic Carugo K, Banuelos S, Saraste M Nat Struct Biol. 1997 Mar;4(3):175-9. PMID:9164454[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.