>3v7a_F mol:protein length:223 5B18 heavy chain
QVQLQQSGAELVRPGTSVKVSCKASGYAFTNYLIEWVKQRPGQGLEWIGVINPRSGDTNSNEKFKGKAILTADKSSSTAYMQLSSLTSDDSAVYFCARSGTTAYFAMDYWGQGTSVTVSSAKTTPPSVYPLAPGSAAQTNSMVTLGCLVKGYFPEPVTVTWNSGSLSSGVHTFPAVLQSDLYTLSSSVTVPSSTWPSETVTCNVAHPASSTKVDKKIVPRDCT