>5ycbB (B:) SEQRES residues madkikdakiifvvggpgsgkgtqcekvvakygythlssgdllraevssgsergkqlqai mqkgelvpldtvldmikdamiakadvskgylidgyprevkqgeefekkigkpclllyida kgetmvkrlmkrgetsgraddneetikkrldlyykatepviafyegrgivrkidselpvd evfkqvstaidal