Chains and heterogens:
PDB Chain Sequences:
>1qtfA (A:) keysaeeirklkqkfevpptdkelythitdnarspynsvgtvfvkgstlatgvligknti vtnyhvareaaknpsniiftpaqnrdaeknefptpygkfeaeeikespygqgldlaiikl kpnekgesagdliqpanipdhidiakgdkysllgypynysayslyqsqiemfndsqyfgy tevgnsgsgifnlkgeligihsgkggqhnlpigvffnrkisslysvdntfgdtlgndlkk rakldk