Chains and heterogens:
PDB Chain Sequences:
>3n40F (F:) ggyehvtvipntvgvpyktlvnrpgyspmvlemellsvtleptlsldyitceyktvipsp yvkccgtaeckdknlpdysckvftgvypfmwggaycfcdaentqlseahveksescktef asayrahtasasaklrvlyqgnnitvtayangdhavtvkdakfivgpmssawtpfdnkiv vykgdvynmdyppfgagrpgqfgdiqsrtpeskdvyantqlvlqrpaagtvhvpysqaps gfkywlkergaslqhtapfgcqiatnpvravncavgnmpisidipeaaftrvvdapsltd mscevpacthssdfggvaiikyaaskkgkcavhsmtnavtireaeievegnsqlqisfst alasaefrvqvcstqvhcaaechppkdhivnyp