Chains and heterogens:
PDB Chain Sequences:
>1xzh_ (-) rttrddlingnsascadvifiyargstetgnlgtlgpsiasnlesafgkdgvwiqgvgga yraplgdnalprgtssaairemlglfqqantkcpdatliaggysqgaalaaasiedldsa irdkiagtvlfgytknlqnrgripnypadrtkvfcntgdlvctgslivaaphlaygpdar gpapefliekvravrgs