1a7x is a 2 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
A ligand that simultaneously binds two proteins must have two high affinity protein binding domains joined in a fashion that facilitates, or at least does not prevent, protein-protein interaction. Designing such ligands is challenging, and a high resolution X-ray structure of FKBP12-FK1012A-FKBP12 illustrates the subtleties of one successful design.
Chemical inducers of dimerization: the atomic structure of FKBP12-FK1012A-FKBP12.,Schultz LW, Clardy J Bioorg Med Chem Lett. 1998 Jan 6;8(1):1-6. PMID:9871618[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
↑ Schultz LW, Clardy J. Chemical inducers of dimerization: the atomic structure of FKBP12-FK1012A-FKBP12. Bioorg Med Chem Lett. 1998 Jan 6;8(1):1-6. PMID:9871618