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