Chains and heterogens:
PDB Chain Sequences:
>1przA (A:) arfepqdipldivyedediivinkprdlvvhpgagnpdgtvlnallhyyppiadvpragi vhrldkdttglmvvaktvpaqtrlveslqrreitreyeavaighmtaggtvdepisrhpt krthmavhpmgkpavthyrimehfrvhtrlrlrletgrthqirvhmahithplvgdpvyg grprppkgaseafistlrkfdrqalhatmlrlyhpisgiemewhapipqdmvelievmra dfeehkdevdwl