Chains and heterogens:
PDB Chain Sequences:
>2cbnA (A:) amnliflgtsagvptrtrnvtaillnlqhptqsglwlfdcgegtqhqllhtafnpgkldk ifishlhgdhlfglpgllcsrsmsgiiqpltiygpqgirefvetalrisgswtdypleiv eigageilddglrkvtayplehplecygyrieehdapgalnaqalkaagvppgplfqelk agktitledgrqingadylaapvpgkalaifgdtgpcdaaldlakgvdvmvheatlditm eakansrghsstrqaatlareagvgkliithvssryddkgcqhllrecrsifpateland ftvfnv