>4yzf_J mol:protein length:218 FAB fragment of Immunoglobulin (IgG) molecule DIVMTQSPASLAVSLGQRATISCRASQSVSTSSYSYMNWYQQKPGQPPKLLIKYASNLE SGVPARFSGSGSGTDFTLNIHPLEEEDTATYYCQHSWEIPWTFGGGTKVEIKRADAAPT VSIFPPSSEQLTSGGASVVCFLNNFYPKDINVKWKIDGSERQNGVLNSWTDQDSKDSTY SMSSTLTLTKDEYERHNSYTCEATHKTSTSPIVKSFNRNEC