>gnl|PDB|1A7N.1 strand_id:L description:IGG1-KAPPA D1.3 FV (LIGHT CHAIN)
DIVLTQSPASLSASVGETVTITCRASGNIHNYLAWYQQKQGKSPQLLVYYTTTLADGVPSRFSGSGSGTQYSLKINSLQPDDFGSYYCQHFWSTPRTFGGGTKLEIK
>gnl|PDB|1A7N.2 strand_id:H description:IGG1-KAPPA D1.3 FV (HEAVY CHAIN)
QVQLQESGPGLVAPSQSLSITCTVSGFSLTGYGVNWVRQPPGKGLEWLGMIWGDGNTDYNSALKSRLSISKDNSKSQVFLKMNSLHTDDTARYYCARERDYRLDYWGQGTTVTVSS