Chains and heterogens:
PDB Chain Sequences:
>1kv1A (A:) msqerptfyrqelnktiwevperyqnlspvgsgaygsvcaafdtktglrvavkklsrpfq siihakrtyrelrllkhmkhenviglldvftparsleefndvylvthlmgadlnnivkcq kltddhvqfliyqilrglkyihsadiihrdlkpsnlavnedcelkildfglarhtddemt gyvatrwyrapeimlnwmhynqtvdiwsvgcimaelltgrtlfpgtdhidqlklilrlvg tpgaellkkissesarnyiqsltqmpkmnfanvfiganplavdllekmlvldsdkritaa qalahayfaqyhdpddepvadpydqsfesrdllidewksltydevisfvpppldqeemes
>1kv1A (A:) rptfyrqelnktiwevperyqnlspvgsgaygsvcaafdtktglrvavkklsrpfqsiih akrtyrelrllkhmkhenviglldvftparsleefndvylvthlmgadlnnivltddhvq fliyqilrglkyihsadiihrdlkpsnlavnedcelkildfgatrwyrapeimlnwmhyn qtvdiwsvgcimaelltgrtlfpgtdhidqlklilrlvgtpgaellkkissesarnyiqs ltqmpkmnfanvfiganplavdllekmlvldsdkritaaqalahayfaqyhdpddepvad pydqsfesrdllidewksltydevisfvppp