>4opnB (B:) SEQRES residues maepqpassgltdetafsccsdpdpstkdfllqqtmlrikdpkksldfytrvlgltllqk ldfpamkfslyflayedkndipkdksektawtfsrkatlelthnwgteddetqsyhngns dprgfghigiavpdvysackrfeelgvkfvkkpddgkmkglafiqdpdgywieilnpnki atii