>4rgn_D mol:protein length:221 6D3 heavy chain
QVQLQQSGAELVKPGASVKLSCKASGYTFTSHWMHWVKQRPGQGLEWIGEIDPSDSYINYNQIFEGKATLTVDKSSTTAYLQLSSLTSEDSAVYYCARTAGLLAPMDYWGQGTSVTVSSAKTTPPSVYPLAPGSAAQTNSMVTLGCLVKGYFPEPVTVTWNSGSLSSGVHTFPAVLQSDLYTLSSSVTVPSSTWPSETVTCNVAHPASSTKVDKKIVPRDC