>3f4bB (B:) observed residues (from ATOM records)
neicfiagvgdsngygwgiakelskrnvkvifgvwppvynifiknlesgkfdkdmiinnd
nskrmqildvlpldagfdnyddidedtknnkrynnlknysieevanliynkygkismlvh
slangrevqkslldtsrdgyldaiskssyslislckhfckfmnsggsvvsltyqasqkvv
pgygggmssakaalesdtrvlayylgrkynirintisagplksraataiysfidyaidys
ekyaplkkkllstdvgsvasfllskessavtgqtiyvdnglnimfgpdd