>7M51_1|Chain A|Spike glycoprotein stem helix peptide|Human coronavirus OC43 (31631) DFKEELDQWFKNQTS >7M51_2|Chain B[auth H]|B6 antigen-binding (Fab) fragment heavy chain|Mus musculus (10090) EVQLQQSGPVLVKPGASVRMSCKASGYTITDYYLNWVKQSHGKSLEWLGVLNPYSGGSLYSQTFKGKATLTVDRSSSTAYLELNSLTSEDSAVYYCARQLGRGNGLDYWGQGTSVTVSSVSTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKRVEPK >7M51_3|Chain C[auth L]|B6 antigen-binding (Fab) fragment light chain|Mus musculus (10090) NIMMTQSPSSLAVSAGEKVTMSCKSSQSVLHSSDQKNYLAWYQQKPGQSPKLLIYWASTRESGVPDRFTGSGSGTDFTLTISSVQAEDLAVYFCHQYLSSYTFGGGTKLEIKRTVAAPSVFIFPPSDEQLKSGTASVVCLLNNFYPREAKVQWKVDNALQSGNSQESVTEQDSKDSTYSLSSTLTLSKADYEKHKVYACEVTHQGLSSPVTKSFNRGEC