Chains and heterogens:
PDB Chain Sequences:
>5k30A (A:) msdcrtygfntqivhagqqpdpstgalstpifqtstfvfdsaeqgaarfaleesgyiytr lgnpttdalekklavlergeaglatasgisaitttlltlcqqgdhivsasaiygcthafl shsmpkfginvsfvdaakpeeiraamrpetkvvyietpanptlslvdietvagiahqqga llvvdntfmspycqqplqlgadivvhsvtkyinghgdviggiivgkqefidqarfvglkd itggcmspfnawltlrgvktlgirmerhcenalkiarfleghpsitrvyypglsshpqye lgqrqmslpggiisfeiaggleagrrminsvelcllavslgdtetliqhpasmthspvap eerlkagitdglirlsvgledpediindlehairkatf
>5k30A (A:) sdcrtygfntqivhagqqpdpstgalstpifqtstfvfdsaeqgaarfrlgnpttdalek klavlergeaglatasgisaitttlltlcqqgdhivsasaiygcthaflshsmpkfginv sfvdaakpeeiraamrpetkvvyietpanptlslvdietvagiahqqgallvvdntfmsp ycqqplqlgadivvhsvtkyinghgdviggiivgkqefidqarfvglkditggcmspfna wltlrgvktlgirmerhcenalkiarfleghpsitrvyypglsshpqyelgqrqmslpgg iisfeiaggleagrrminsvelcllavslgdtetliqhpasmthspvapeerlkagitdg lirlsvgledpediindlehairkat