Chains and heterogens:
PDB Chain Sequences:
>1qhvA (A:) aitignknddkltlwttpdpspncrihsdndckftlvltkcgsqvlatvaalavsgdlss mtgtvasvsiflrfdqngvlmensslkkhywnfrngnstnanpytnavgfmpnllaypkt qsqtaknnivsqvylhgdktkpmiltitlngtsestetsevstysmsftwswesgkytte tfatnsytfsyiaqe