Chains and heterogens:
PDB Chain Sequences:
>2dl2A (A:) ahrkpsllahpgrlvkseetvilqcwsdvrfehfllhregkfkdtlhligehhdgvskan fsigpmmqdlagtyrcygsvthspyqlsapsdpldivitglyekpslsaqpgptvlages vtlscssrssydmyhlsregeahecrfsagpkvngtfqadfplgpathggtyrcfgsfrd spyewsnssdpllvsvi