>3b9k_H mol:protein length:214 Fab Heavy chain
QVRLQESGPGLVQPSQTLSLTCSVSGFSLISDSVHWVRQPPGKGLEWMGGIWADGSTEYNSALKSRLSISRDTSKSQGFLKMNSLQTDDTAIYFCTSNRESYYFDYWGQGTMVTVSSAQTTAPSVYPLAPGCGDTTSSTVTLGCLVKGYFPEPVTVTWNSGALSSDVHTFPAVLQSGLYTLTSSVTSSTWPSQTVTCNVAHPASSTKVDKAVEA