Chains and heterogens:
PDB Chain Sequences:
>2c4aA (A:) rdfnnltkglctinswhiygkdnavrigedsdvlvtrepyvscdpdecrfyalsqgttir gkhsngtihdrsqyraliswplsspptvynsrvecigwsstschdgktrmsicisgpnnn asaviwynrrpvteintwarnilrtqesecvchngvcpvvftdgsatgpaetriyyfkeg kilkweplagtakhieecscygeraeitctcrdnwqgsnrpviridpvamthtsqyicsp vltdnprpndptvgkcndpypgnnnngvkgfsyldgvntwlgrtisiasrsgyemlkvpn altddkskptqgqtivlntdwsgysgsfmdywaegecyracfyvelirgrpkedkvwwts nsivsmcssteflgqwdwpdgakieyfl