Chains and heterogens:
PDB Chain Sequences:
>1a65A (A:) qivnsvdtmtltnanvspdgftragilvngvhgplirggkndnfelnvvndldnptmlrp tsihwhglfqrgtnwadgadgvnqcpispghaflykftpaghagtfwyhshfgtqycdgl rgpmviyddndphaalydeddentiitladwyhipapsiqgaaqpdatlingkgryvggp aaelsivnveqgkkyrmrlislscdpnwqfsidgheltiievdgeltephtvdrlqiftg qrysfvldanqpvdnywiraqpnkgrnglagtfangvnsailryagaanadpttsanpnp aqlneadlhalidpaapgiptpgaadvnlrfqlgfsggrftingtayespsvptllqims gaqsandllpagsvyelprnqvvelvvpagvlggphpfhlhghafsvvrsagsstynfvn pvkrdvvslgvtgdevtirfvtdnpgpwffhchiefhlmnglaivfaedmantvdannpp vewaqlceiyddlppeatsiqtvv