>3ixx_H mol:protein length:215 E53 Fab Fragment (chain L) QIVLTQSPAIMSASPGEKVTMTCSASSSVSYMHWYQQKSGTSPKIWIYESSKLASGVPV RFSGSGSGTSYSLTISSMEAEDVATYYCQQWSSHPHPLTFGAGTKLELKRADAAPTVSI FPPSSEQLTSGGASVVCFLNNFYPKDINVKWKIDGSERQNGVLNSWTDQDSKDSTYSMS STLTLTKDEYERHNSYTCEATHKTSTSPIVKSFNRNEC