>2vk4B (B:) observed residues (from ATOM records)
seitlgrylferlkqvevqtifglpgdfnlslldniyevpgmrwagnanelnaayaadgy
arlkgmsciittfgvgelsalngiagsyaehvgvlhvvgvpsvssqallhhtlgngdftv
fhrmssnisettamitdintapaeidrcirttyvsqrpvylglpanlvdltvpaslldtp
idlslkpndpeaeeevienvlqlikeaknpviladaccsrhdakaetkklidltqfpafv
tpmgkgsidekhprfggvyvgtlsspavkeavesadlvlsvgallsdfntgsfsysyktk
nivefhsdytkirsatfpgvqmkfalqklltkvadaakgykpvpvpsepehneavadstp
lkqewvwtqvgeflregdvvitetgtsafginqthfpnntygisqvlwgsigfttgatlg
aafaaeeidpkkrvilfigdgslqltvqeistmirwglkpylfvlnndgytierlihget
aqynciqnwqhlellptfgakdyeavrvsttgewnklttdekfqdntrirlievmlptmd
apsnlvkqaqltaatna