Chains and heterogens:
PDB Chain Sequences:
>6mr2A (A:) masmtggqqmgrgsmifsvdkvradfpvlsrevnglplayldsaasaqkpsqvidaeaef yrhgyaavhrgihtlsaqatekmenvrkraslfinarsaeelvfvrgtteginlvanswg nsnvragdniiisqmehhanivpwqmlcarvgaelrviplnpdgtlqletlptlfdektr llaithvsnvlgtenplaemitlahqhgakvlvdgaqavmhhpvdvqaldcdfyvfsghk lygptgigilyvkeallqemppwegggsmiatvslsegttwtkapwrfeagtpntggiig lgaaleyvsalglnniaeyeqnlmhyalsqlesvpdltlygpqnrlgviafnlgkhhayd vgsfldnygiavrtghhcamplmayynvpamcraslamyntheevdrlvtglqrihrllg
>6mr2A (A:) ifsvdkvradfpvlsrevnglplayldsaasaqkpsqvidaeaefyrhgyaavhrgihtl saqatekmenvrkraslfinarsaeelvfvrgtteginlvanswgnsnvragdniiisqm ehhanivpwqmlcarvgaelrviplnpdgtlqletlptlfdektrllaithvsnvlgten plaemitlahqhgakvlvdgaqavmhhpvdvqaldcdfyvfsghklygptgigilyvkea llqemppwegggsmiatvslsegttwtkapwrfeagtpntggiiglgaaleyvsalglnn iaeyeqnlmhyalsqlesvpdltlygpqnrlgviafnlgkhhaydvgsfldnygiavrtg hhcamplmayynvpamcraslamyntheevdrlvtglqrihrllg