Chains and heterogens:
PDB Chain Sequences:
>1f17A (A:) kiivkhvtviggglmgagiaqvaaatghtvvlvdqtedilakskkgieeslrkvakkkfa enpkagdecvektlstiatstdaasvvhstdlvveaivenlkvknelfkrldkfaaehti fasntsslqitsianattrqdrfaglhffnpvpvmklveviktpmtsqktfeslvdfska lgkhpvsckdtpgfivnrllvpylmeairlyergdaskedidtamklgagypmgpfelld yvgldttkfivdgwhemdaenplhqpspslnklvaenkfgkktgegfykykle
>1f17B (B:) kiivkhvtviggglmgagiaqvaaatghtvvlvdqtedilakskkgieeslrkvakkkfa enpkagdecvektlstiatstdaasvvhstdlvveaivenlkvknelfkrldkfaaehti fasntsslqitsianattrqdrfaglhffnpvpvmklveviktpmtsqktfeslvdfska lgkhpvsckdtpgfivnrllvpylmeairlyergdaskedidtamklgagypmgpfelld yvgldttkfivdgwhemdaenplhqpspslnklvaenkfgkktgegfykyk