>9YYX_1|Chain A|HKU1-11 Fab heavy chain|Homo sapiens (9606)
QVQLQESGPGLVKPSETLSLTCTVSGGSISSYFWSWIRQPPGKGLEWIGYIYYSGSTNYNPSLRSRVTISVDTSKNQFSLKLSYVTAADTAVYYCARLSCGADCYPIPKLSWFDPWGQGTLVTVSS
>9YYX_2|Chain B|HKU1-11 Fab light chain|Homo sapiens (9606)
QSVLTQPPSASGTPGQRVTISCSGGSSNIGSNYVYWYQQLPGTAPKLLIYRNTQRPSGVPDRFSGSKSGTSASLAISGLRSEDEADYYCAAWDDSLSGPVFGGGTKVTVL
>9YYX_3|Chain C|Spike protein S1 CTD|Human coronavirus HKU1 (isolate N5) (443241)
CDIDNWLNNVSVPSPLNWERRIFSNCNFNLSTLLRLVHVDSFSCNNLDKSKIFGSCFNSITVDKFAIPNRRRDDLQLGSSGFLQSSNYKIDISSSSCQLYYSLPLVNVTINNFNPSSWNRRYGFGSFNLSSYDVVYSDHCFSVNSDFCPCADPSVVNSCAKSKPPSAICPAGTKYRHCDLDTTLYVKNWCRCSCLPDPISTYSPNTCPQKKVVVGIGEHCPGLGINEEKCGTQLNHSSCFCSPDAFLGWSFDSCISNNRCNIFSNFIFNGINSGTTCSNDLLYS
>9YYX_4|Chain D|Spike protein S1 NTD|Human coronavirus HKU1 (isolate N5) (443241)
VIGDFNCTNSFINDYNKTIPRISEDVVDVSLGLGTYYVLNRVYLNTTLLFTGYFPKSGANFRDLALKGSIYLSTLWYKPPFLSDFNNGIFSKVKNTKLYVNNTLYSEFSTIVIGSVFVNTSYTIVVQPHNGILEITACQYTMCEYPHTVCKSKGSIRNESWHIDSSEPLCLFKKNFTYNVSADWLYFHFYQERGVFYAYYADVGMPTTFLFSLYLGTILSHYYVMPLTCNAISSNTDNETLEYWVTPLSRRQYLLNFDEHGVITNAVDCSSSFLSEIQCKTQSFAPNTGVY