>1xi2B (B:) SEQRES residues agkkvlivyahqepksfngslknvavdelsrqgctvtvsdlyamnfepratdkditgtls npevfnygvetheaykqrslasditdeqkkvreadlvifqfplywfsvpailkgwmdrvl cqgfafdipgfydsgllqgklallsvttggtaemytktgvngdsryflwplqhgtlhfcg fkvlapqisfapeiaseeerkgmvaawsqrlqtiwkeepipctahwhfgq