Chains and heterogens:
PDB Chain Sequences:
>1fgkA (A:) elpedprwelprdrlvlgkplgegafgqvvlaeaigldkdkpnrvtkvavkmlksdatek dlsdlisememmkmigkhkniinllgactqdgplyviveyaskgnlreylqarrppgley synpshnpeeqlsskdlvscayqvargmeylaskkcihrdlaarnvlvtednvmkiadfg lardihhidyykkttngrlpvkwmapealfdriythqsdvwsfgvllweiftlggspypg vpveelfkllkeghrmdkpsnctnelymmmrdcwhavpsqrptfkqlvedldrivalts
>1fgkA (A:) elpedprwelprdrlvlgkplgqvvlaeaiglpnrvtkvavkmlksdatekdlsdlisem emmkmigkhkniinllgactqdgplyviveyaskgnlreylqarrppeeqlsskdlvsca yqvargmeylaskkcihrdlaarnvlvtednvmkiadfglardihhidyykkttngrlpv kwmapealfdriythqsdvwsfgvllweiftlggspypgvpveelfkllkeghrmdkpsn ctnelymmmrdcwhavpsqrptfkqlvedldrivalts
>1fgkB (B:) seyelpedprwelprdrlvlgkplgegafgqvvlaeaigldkdkpnrvtkvavkmlksda tekdlsdlisememmkmigkhkniinllgactqdgplyviveyaskgnlreylqarrppg leysynpshnpeeqlsskdlvscayqvargmeylaskkcihrdlaarnvlvtednvmkia dfglardihhidyykkttngrlpvkwmapealfdriythqsdvwsfgvllweiftlggsp ypgvpveelfkllkeghrmdkpsnctnelymmmrdcwhavpsqrptfkqlvedldrival t
>1fgkB (B:) seyelpedprwelprdrlvlgkplgegafgqvvlaeaiglpnrvtkvavkmlksdatekd lsdlisememmkmigkhkniinllgactqdgplyviveyaskgnlreylqarrqlsskdl vscayqvargmeylaskkcihrdlaarnvlvtednvmkiadfgladyykkgrlpvkwmap ealfdriythqsdvwsfgvllweiftlggspypgvpveelfkllkeghrmdkpsnctnel ymmmrdcwhavpsqrptfkqlvedldrivalt