>2pkrM (M:) observed residues (from ATOM records)
klkvaingfgrigrnflrcwhgrkdspldvvvindtggvkqashllkydsilgtfdadvk
tagdsaisvdgkvikvvsdrnpvnlpwgdmgidlviegtgvfvdrdgagkhlqagakkvl
itapgkgdiptyvvgvneegythadtiisnascttnclapfvkvldqkfgiikgtmttth
sytgdqrlldashrdlrraraaclnivptstgaakavalvlpnlkgklngialrvptpnv
svvdlvvqvskktfaeevnaafresadnelkgilsvcdeplvsidfrctdvsstidsslt
mvmgddmvkviawydnewgysqrvvdladivankwqg