>1xarB (B:) SEQRES residues gelpeksklqeiyqeltqlkaavgelpdqskqqqiyqeltdlktaferlcrhcpkdwtff qgncyfmsnsqrnwhdsvtacqevraqlvviktaeeqnflqlqtsrsnrfswmglsdlnq egtwqwvdgsplspsfqrywnsgepnnsgnedcaefsgsgwndnrcdvdnywickkpaac frde