>6xxn_F mol:protein length:146 NB_7_a,b,c,f
QVQLQESGGGSVQAGGSLRLSCTAPGYTDSNYYMSWFRQAPGKEREWVAGVNTGRGSTSYADSVKGRFTISQDNAKNTMFLQMNSLKPEDTAIYYCAVAACHFCDSLPKTQDEYILWGQGTQVTVSSAAAYPYDVPDYGSHHHHHH