Q8N126_Q92752.1 contacts (residues)

ReceptorR: Secondary StructureR: ResidueR; ChainR: Residue numberLigandL: Secondary StructureL: ResidueL: ChainL: Residue Number
R-LEUA10LSGLNV84
R-LEUA10LSSERV96
R-LEUA10L-SERV98
RSGLUA1005LSGLUV181
RSGLUA1005LSPHEV188
R-LYSA11LSGLNV84
R-LYSA11LSLEUV85
R-LYSA11LSVALV86
R-LYSA11LSSERV96
R-ASNA12LSLEUV85
R-ASNA12LSVALV86
R-ASNA12LSTHRV87
R-ASNA12LSSERV96
R-META13LSLEUV85
R-META13LSVALV86
R-META13LSTHRV87
R-LEUA14LSTHRV87
R-LEUA14LSSERV88
R-ILEA15L-GLUV74
R-ILEA15LSSERV88
R-ILEA15LSTHRV89
R-GLYA16L-GLUV74
R-GLYA16LSSERV88
R-ILEA17L-GLUV74
R-ASNA18L-LYSV75
R-LEUA19L-ASPV57
R-LEUA19L-SERV58
R-LEUA19L-SERV59
R-LEUA21L-GLUV56
R-LEUA21L-ASPV57
R-LEUA22L-GLUV56
R-LEUA22L-ASPV57
R-LEUA22L-SERV58
R-GLYA23L-THRV114
R-GLYA23L-METV115
R-GLYA23LSARGV118
R-GLYA23L-GLUV56
R-GLYA23L-SERV58
R-SERA24L-METV115
R-SERA24L-GLUV56
R-META25L-METV115
R-META25LSARGV118
R-ILEA26LSARGV118
R-ILEA26L-ASPV29
R-ILEA26L-SERV31
R-LYSA27L-PROV116
R-LYSA27LSARGV118
R-THRA7L-ASNV81
R-THRA7L-ARGV82
R-VALA8L-ARGV82
R-VALA8L-SERV98
R-VALA8L-ASNV99
RSTYRA893L-ALAV20
RSARGA895L-ALAV20
RSARGA895L-GLYV22
RSARGA895L-ALAV24
RSARGA899L-LEUV26
R-VALA9L-THRV45
R-VALA9L-ARGV82
R-VALA9L-SERV98
R-VALA9L-ASNV99
R-LEUA906L-ALAV24
R-LEUA906L-LEUV26
RSVALA910L-CYSV17
RSVALA910L-ALAV20
RSGLUA930L-LEUV26
R-ARGA944L-LEUV26
R-ARGA944L-SERV27

 - Title of columns started by 'R:' means Receptor, 'L:' means Ligand
 - In the Secondary Structure columns: 'H' means that residues in that row are part of Alpha Helix; 'S' - Beta Sheet





Q8N126_Q92752.1 contacts (residues & atoms)

ReceptorR: Secondary StructureR: AtomR: ResidueR; ChainR: Residue numberLigandL: Secondary StructureL; AtomL: ResidueL: ChainL: Residue Number
R-CATHRA7L-HG2ARGV82
R-CATHRA7L-HG3ARGV82
R-CTHRA7L-HG2ARGV82
R-CBTHRA7L-CBASNV81
R-CBTHRA7L-HB2ASNV81
R-CBTHRA7L-HB3ASNV81
R-CBTHRA7L-HD21ASNV81
R-CBTHRA7L-CGARGV82
R-CBTHRA7L-HG2ARGV82
R-CBTHRA7L-HG3ARGV82
R-CG2THRA7L-CBASNV81
R-CG2THRA7L-HASNV81
R-CG2THRA7L-HB3ASNV81
R-CG2THRA7L-HD21ASNV81
R-CG2THRA7L-HARGV82
R-CG2THRA7L-HG3ARGV82
R-OG1THRA7L-CBASNV81
R-OG1THRA7L-CGASNV81
R-OG1THRA7L-ND2ASNV81
R-OG1THRA7L-HB2ASNV81
R-OG1THRA7L-HB3ASNV81
R-OG1THRA7L-HD21ASNV81
R-NVALA8L-CGARGV82
R-NVALA8L-HG2ARGV82
R-NVALA8L-HG3ARGV82
R-NVALA8L-HB3ASNV99
R-NVALA8L-HD21ASNV99
R-CAVALA8L-HG2ARGV82
R-CAVALA8L-OGSERV98
R-CAVALA8L-HB2ASNV99
R-CAVALA8L-HB3ASNV99
R-CVALA8L-HAARGV82
R-CVALA8L-HG2ARGV82
R-CVALA8L-CSERV98
R-CVALA8L-CBSERV98
R-CVALA8L-OSERV98
R-CVALA8L-OGSERV98
R-CVALA8L-HB3SERV98
R-CVALA8L-HGSERV98
R-CVALA8L-NASNV99
R-CVALA8L-CBASNV99
R-CVALA8L-HB2ASNV99
R-CVALA8L-HB3ASNV99
R-CBVALA8L-HB2ASNV99
R-OVALA8L-CBARGV82
R-OVALA8L-CGARGV82
R-OVALA8L-CDARGV82
R-OVALA8L-HAARGV82
R-OVALA8L-HB3ARGV82
R-OVALA8L-HG2ARGV82
R-OVALA8L-HD3ARGV82
R-OVALA8L-CASERV98
R-OVALA8L-CSERV98
R-OVALA8L-CBSERV98
R-OVALA8L-OSERV98
R-OVALA8L-OGSERV98
R-OVALA8L-HB3SERV98
R-OVALA8L-HGSERV98
R-OVALA8L-NASNV99
R-OVALA8L-CAASNV99
R-OVALA8L-CBASNV99
R-OVALA8L-HASNV99
R-OVALA8L-HB2ASNV99
R-OVALA8L-HB3ASNV99
R-OVALA8L-HD21ASNV99
R-CG1VALA8L-CBASNV99
R-CG1VALA8L-HB2ASNV99
R-CG1VALA8L-HB3ASNV99
R-NVALA9L-HAARGV82
R-NVALA9L-CASERV98
R-NVALA9L-CSERV98
R-NVALA9L-CBSERV98
R-NVALA9L-OGSERV98
R-NVALA9L-HB2SERV98
R-NVALA9L-HB3SERV98
R-NVALA9L-HGSERV98
R-NVALA9L-HASNV99
R-NVALA9L-HB2ASNV99
R-CAVALA9L-CBSERV98
R-CAVALA9L-OGSERV98
R-CAVALA9L-HB2SERV98
R-CAVALA9L-HB3SERV98
R-CAVALA9L-HGSERV98
R-CVALA9L-CASERV98
R-CVALA9L-CBSERV98
R-CVALA9L-OGSERV98
R-CVALA9L-HB2SERV98
R-CVALA9L-HB3SERV98
R-CVALA9L-HGSERV98
R-CBVALA9L-OGSERV98
R-CBVALA9L-HB3SERV98
R-OVALA9L-OG1THRV45
R-OVALA9L-HG1THRV45
R-OVALA9L-HG21THRV45
R-OVALA9L-HG22THRV45
R-OVALA9L-CASERV98
R-OVALA9L-CBSERV98
R-OVALA9L-OGSERV98
R-OVALA9L-HASERV98
R-OVALA9L-HB2SERV98
R-OVALA9L-HB3SERV98
R-OVALA9L-HGSERV98
R-OVALA9L-HASNV99
R-CG1VALA9L-HB3SERV98
R-NLEUA10L-CBSERV98
R-NLEUA10L-OGSERV98
R-NLEUA10L-HB2SERV98
R-NLEUA10L-HB3SERV98
R-CALEUA10LSHG3GLNV84
R-CLEUA10LSHG3GLNV84
R-CLEUA10LSHGSERV96
R-OLEUA10LSHGSERV96
R-NLYSA11LSCBGLNV84
R-NLYSA11LSCGGLNV84
R-NLYSA11LSHB2GLNV84
R-NLYSA11LSHB3GLNV84
R-NLYSA11LSHG3GLNV84
R-NLYSA11LSHGSERV96
R-CALYSA11LSHB2GLNV84
R-CALYSA11LSHB3GLNV84
R-CALYSA11LSHGSERV96
R-CLYSA11LSHB2GLNV84
R-CLYSA11LSHB3GLNV84
R-CLYSA11LSOLEUV85
R-CLYSA11LSCG2VALV86
R-CLYSA11LSHAVALV86
R-CLYSA11LSHG22VALV86
R-CLYSA11LSOGSERV96
R-CLYSA11LSHGSERV96
R-OLYSA11LSHB3GLNV84
R-OLYSA11LSCG2VALV86
R-OLYSA11LSHG21VALV86
R-OLYSA11LSHG22VALV86
R-OLYSA11LSHG23VALV86
R-OLYSA11LSCBSERV96
R-OLYSA11LSOGSERV96
R-OLYSA11LSHB2SERV96
R-OLYSA11LSHB3SERV96
R-OLYSA11LSHGSERV96
R-NASNA12LSCLEUV85
R-NASNA12LSOLEUV85
R-NASNA12LSNVALV86
R-NASNA12LSCAVALV86
R-NASNA12LSCBVALV86
R-NASNA12LSCG2VALV86
R-NASNA12LSHAVALV86
R-NASNA12LSHG12VALV86
R-NASNA12LSHG21VALV86
R-NASNA12LSHG22VALV86
R-NASNA12LSHGSERV96
R-CAASNA12LSOLEUV85
R-CAASNA12LSCAVALV86
R-CAASNA12LSOVALV86
R-CAASNA12LSHAVALV86
R-CAASNA12LSHG12VALV86
R-CAASNA12LSHG22VALV86
R-CASNA12LSCLEUV85
R-CASNA12LSOLEUV85
R-CASNA12LSNVALV86
R-CASNA12LSCAVALV86
R-CASNA12LSCVALV86
R-CASNA12LSOVALV86
R-CASNA12LSHAVALV86
R-CASNA12LSHG12VALV86
R-CBASNA12LSHAVALV86
R-CBASNA12LSHG12VALV86
R-CBASNA12LSHG22VALV86
R-OASNA12LSCLEUV85
R-OASNA12LSOLEUV85
R-OASNA12LSNVALV86
R-OASNA12LSCAVALV86
R-OASNA12LSCVALV86
R-OASNA12LSCBVALV86
R-OASNA12LSOVALV86
R-OASNA12LSCG1VALV86
R-OASNA12LSHVALV86
R-OASNA12LSHAVALV86
R-OASNA12LSHG11VALV86
R-OASNA12LSHG12VALV86
R-OASNA12LSHG22VALV86
R-OASNA12LSNTHRV87
R-OASNA12LSHTHRV87
R-NMETA13LSOLEUV85
R-NMETA13LSOVALV86
R-NMETA13LSHAVALV86
R-CAMETA13LSOVALV86
R-CMETA13LSCVALV86
R-CMETA13LSOVALV86
R-CMETA13LSHATHRV87
R-OMETA13LSCVALV86
R-OMETA13LSOVALV86
R-OMETA13LSNTHRV87
R-OMETA13LSCATHRV87
R-OMETA13LSHATHRV87
R-CLEUA14LSOSERV88
R-CLEUA14LSHSERV88
R-CLEUA14LSHB3SERV88
R-OLEUA14LSHATHRV87
R-OLEUA14LSHG23THRV87
R-OLEUA14LSNSERV88
R-OLEUA14LSCASERV88
R-OLEUA14LSCSERV88
R-OLEUA14LSOSERV88
R-OLEUA14LSHSERV88
R-OLEUA14LSHB3SERV88
R-NILEA15LSOSERV88
R-NILEA15LSHB3SERV88
R-CAILEA15LSOSERV88
R-CAILEA15LSHB3SERV88
R-CILEA15L-HB3GLUV74
R-CILEA15LSCASERV88
R-CILEA15LSCSERV88
R-CILEA15LSCBSERV88
R-CILEA15LSOSERV88
R-CILEA15LSOGSERV88
R-CILEA15LSHB3SERV88
R-CILEA15LSHGSERV88
R-CBILEA15LSOSERV88
R-CBILEA15LSHG23THRV89
R-OILEA15L-HB3GLUV74
R-OILEA15LSNSERV88
R-OILEA15LSCASERV88
R-OILEA15LSCSERV88
R-OILEA15LSCBSERV88
R-OILEA15LSOSERV88
R-OILEA15LSOGSERV88
R-OILEA15LSHSERV88
R-OILEA15LSHASERV88
R-OILEA15LSHB2SERV88
R-OILEA15LSHB3SERV88
R-OILEA15LSHGSERV88
R-OILEA15LSNTHRV89
R-OILEA15LSHATHRV89
R-CG2ILEA15LSOSERV88
R-CG2ILEA15LSHG23THRV89
R-NGLYA16L-OE2GLUV74
R-NGLYA16L-HB3GLUV74
R-NGLYA16LSCBSERV88
R-NGLYA16LSOSERV88
R-NGLYA16LSOGSERV88
R-NGLYA16LSHB3SERV88
R-NGLYA16LSHGSERV88
R-CAGLYA16L-CDGLUV74
R-CAGLYA16L-OE2GLUV74
R-CAGLYA16L-HB3GLUV74
R-CGLYA16L-OE2GLUV74
R-NILEA17L-CDGLUV74
R-NILEA17L-OE1GLUV74
R-NILEA17L-OE2GLUV74
R-OD1ASNA18L-HZ1LYSV75
R-CALEUA19L-OASPV57
R-CLEUA19L-OASPV57
R-CBLEUA19L-OASPV57
R-CBLEUA19L-HB3ASPV57
R-OLEUA19L-CASPV57
R-OLEUA19L-OASPV57
R-OLEUA19L-HASERV58
R-OLEUA19L-OGSERV59
R-OLEUA19L-HGSERV59
R-CGLEUA19L-HB3ASPV57
R-CD1LEUA19L-HB3ASPV57
R-CD2LEUA19L-HB3ASPV57
R-CLEUA21L-HB2ASPV57
R-OLEUA21L-OGLUV56
R-OLEUA21L-CBASPV57
R-OLEUA21L-OASPV57
R-OLEUA21L-HB2ASPV57
R-OLEUA21L-HB3ASPV57
R-CLEUA22L-CGLUV56
R-CLEUA22L-CBGLUV56
R-CLEUA22L-OGLUV56
R-CLEUA22L-HB3GLUV56
R-CLEUA22L-HB2ASPV57
R-CLEUA22L-HGSERV58
R-OLEUA22L-CAGLUV56
R-OLEUA22L-CGLUV56
R-OLEUA22L-CBGLUV56
R-OLEUA22L-OGLUV56
R-OLEUA22L-HAGLUV56
R-OLEUA22L-HB2GLUV56
R-OLEUA22L-HB3GLUV56
R-OLEUA22L-NASPV57
R-OLEUA22L-HB2ASPV57
R-OLEUA22L-HGSERV58
R-NGLYA23L-CBGLUV56
R-NGLYA23L-OGLUV56
R-NGLYA23L-OE2GLUV56
R-NGLYA23L-HB2GLUV56
R-NGLYA23L-HB3GLUV56
R-NGLYA23L-HGSERV58
R-NGLYA23L-HATHRV114
R-CAGLYA23L-CAGLUV56
R-CAGLYA23L-CBGLUV56
R-CAGLYA23L-OGLUV56
R-CAGLYA23L-CGGLUV56
R-CAGLYA23L-CDGLUV56
R-CAGLYA23L-OE2GLUV56
R-CAGLYA23L-HB2GLUV56
R-CAGLYA23L-HB3GLUV56
R-CAGLYA23L-HG2GLUV56
R-CAGLYA23L-HGSERV58
R-CAGLYA23L-HATHRV114
R-CAGLYA23L-HBTHRV114
R-CAGLYA23L-HG22THRV114
R-CAGLYA23L-HMETV115
R-CGLYA23L-CBGLUV56
R-CGLYA23L-CGGLUV56
R-CGLYA23L-CDGLUV56
R-CGLYA23L-OE1GLUV56
R-CGLYA23L-OE2GLUV56
R-CGLYA23L-HB2GLUV56
R-CGLYA23L-HB3GLUV56
R-CGLYA23L-CBTHRV114
R-CGLYA23L-HATHRV114
R-CGLYA23L-HBTHRV114
R-CGLYA23L-HG22THRV114
R-CGLYA23L-NMETV115
R-CGLYA23L-HMETV115
R-OGLYA23L-CGGLUV56
R-OGLYA23L-CDGLUV56
R-OGLYA23L-OE1GLUV56
R-OGLYA23L-OE2GLUV56
R-OGLYA23L-HB2GLUV56
R-OGLYA23L-HB3GLUV56
R-OGLYA23L-CATHRV114
R-OGLYA23L-CTHRV114
R-OGLYA23L-CBTHRV114
R-OGLYA23L-CG2THRV114
R-OGLYA23L-HATHRV114
R-OGLYA23L-HBTHRV114
R-OGLYA23L-HG21THRV114
R-OGLYA23L-HG22THRV114
R-OGLYA23L-NMETV115
R-OGLYA23L-OMETV115
R-OGLYA23L-HMETV115
R-OGLYA23L-HB3METV115
R-OGLYA23LSHH12ARGV118
R-NSERA24L-CDGLUV56
R-NSERA24L-OE2GLUV56
R-NSERA24L-HB3GLUV56
R-NSERA24L-HMETV115
R-NSERA24L-HB3METV115
R-CASERA24L-OE2GLUV56
R-CASERA24L-OMETV115
R-CASERA24L-HMETV115
R-CASERA24L-HB3METV115
R-CSERA24L-OE2GLUV56
R-CSERA24L-OMETV115
R-CBSERA24L-HB3METV115
R-OSERA24L-OE2GLUV56
R-NMETA25L-OMETV115
R-CAMETA25LSHH22ARGV118
R-CMETA25LSNH2ARGV118
R-CMETA25LSHH22ARGV118
R-NILEA26LSNH2ARGV118
R-NILEA26LSCZARGV118
R-NILEA26LSHH12ARGV118
R-NILEA26LSHH21ARGV118
R-NILEA26LSHH22ARGV118
R-CAILEA26LSNH2ARGV118
R-CAILEA26LSHH21ARGV118
R-CAILEA26LSHH22ARGV118
R-CILEA26LSNH2ARGV118
R-CILEA26LSHEARGV118
R-CILEA26LSHH21ARGV118
R-CILEA26LSHH22ARGV118
R-CBILEA26L-OD1ASPV29
R-CBILEA26L-OGSERV31
R-CBILEA26L-HGSERV31
R-CBILEA26LSNH2ARGV118
R-CBILEA26LSHH21ARGV118
R-CBILEA26LSHH22ARGV118
R-OILEA26L-CGASPV29
R-OILEA26L-OD2ASPV29
R-OILEA26LSNEARGV118
R-OILEA26LSNH2ARGV118
R-OILEA26LSCZARGV118
R-OILEA26LSHEARGV118
R-OILEA26LSHH21ARGV118
R-OILEA26LSHH22ARGV118
R-CG1ILEA26L-HGSERV31
R-CG1ILEA26LSHH22ARGV118
R-CG2ILEA26L-CGASPV29
R-CG2ILEA26L-OD1ASPV29
R-CG2ILEA26L-OD2ASPV29
R-CG2ILEA26L-HGSERV31
R-CG2ILEA26LSHH21ARGV118
R-CD1ILEA26L-OD1ASPV29
R-CD1ILEA26L-HB3SERV31
R-CD1ILEA26L-HGSERV31
R-NLYSA27LSNH2ARGV118
R-NLYSA27LSHH21ARGV118
R-CALYSA27LSHH21ARGV118
R-CGLYSA27L-CGPROV116
R-CGLYSA27L-HG3PROV116
R-CGLYSA27L-HD2PROV116
R-CDLYSA27L-HG3PROV116
R-CELYSA27L-CGPROV116
R-CELYSA27L-HG3PROV116
R-NZLYSA27L-HG3PROV116
RSCE1TYRA893L-HB2ALAV20
RSCE2TYRA893L-HB1ALAV20
RSCE2TYRA893L-HB2ALAV20
RSOHTYRA893L-CBALAV20
RSOHTYRA893L-HB1ALAV20
RSOHTYRA893L-HB2ALAV20
RSCZTYRA893L-CBALAV20
RSCZTYRA893L-HB1ALAV20
RSCZTYRA893L-HB2ALAV20
RSCDARGA895L-HB2ALAV24
RSNEARGA895L-OGLYV22
RSNH1ARGA895L-CAGLYV22
RSNH1ARGA895L-CGLYV22
RSNH1ARGA895L-OGLYV22
RSNH1ARGA895L-HGLYV22
RSNH1ARGA895L-HA3GLYV22
RSNH1ARGA895L-HALAV24
RSNH2ARGA895L-HB1ALAV20
RSNH2ARGA895L-NGLYV22
RSNH2ARGA895L-CAGLYV22
RSNH2ARGA895L-CGLYV22
RSNH2ARGA895L-OGLYV22
RSNH2ARGA895L-HGLYV22
RSNH2ARGA895L-HA2GLYV22
RSNH2ARGA895L-HA3GLYV22
RSCZARGA895L-CAGLYV22
RSCZARGA895L-CGLYV22
RSCZARGA895L-OGLYV22
RSCZARGA895L-HA3GLYV22
RSCDARGA899L-CD1LEUV26
RSCDARGA899L-HD12LEUV26
RSCDARGA899L-HD13LEUV26
RSNEARGA899L-CD1LEUV26
RSNEARGA899L-CD2LEUV26
RSNEARGA899L-HD12LEUV26
RSNEARGA899L-HD13LEUV26
RSNEARGA899L-HD22LEUV26
RSNEARGA899L-HD23LEUV26
RSNH1ARGA899L-CD1LEUV26
RSNH1ARGA899L-CD2LEUV26
RSNH1ARGA899L-HD12LEUV26
RSNH1ARGA899L-HD13LEUV26
RSNH1ARGA899L-HD22LEUV26
RSNH1ARGA899L-HD23LEUV26
RSNH2ARGA899L-CGLEUV26
RSNH2ARGA899L-CD1LEUV26
RSNH2ARGA899L-CD2LEUV26
RSNH2ARGA899L-HD12LEUV26
RSNH2ARGA899L-HD13LEUV26
RSNH2ARGA899L-HD21LEUV26
RSNH2ARGA899L-HD22LEUV26
RSNH2ARGA899L-HD23LEUV26
RSCZARGA899L-CGLEUV26
RSCZARGA899L-CD1LEUV26
RSCZARGA899L-CD2LEUV26
RSCZARGA899L-HD12LEUV26
RSCZARGA899L-HD13LEUV26
RSCZARGA899L-HD22LEUV26
RSCZARGA899L-HD23LEUV26
R-CBLEUA906L-HD11LEUV26
R-CBLEUA906L-HD12LEUV26
R-CGLEUA906L-HD12LEUV26
R-CD1LEUA906L-HD12LEUV26
R-CD2LEUA906L-OALAV24
R-CD2LEUA906L-HB3ALAV24
R-CD2LEUA906L-CD1LEUV26
R-CD2LEUA906L-HGLEUV26
R-CD2LEUA906L-HD11LEUV26
R-CD2LEUA906L-HD12LEUV26
RSCAVALA910L-HB3CYSV17
RSCVALA910L-HB3CYSV17
RSCBVALA910L-CCYSV17
RSCBVALA910L-CBCYSV17
RSCBVALA910L-OCYSV17
RSCBVALA910L-HB3CYSV17
RSOVALA910L-HB3CYSV17
RSCG1VALA910L-CBCYSV17
RSCG1VALA910L-OCYSV17
RSCG1VALA910L-SGCYSV17
RSCG1VALA910L-HB3CYSV17
RSCG2VALA910L-OCYSV17
RSCG2VALA910L-CBALAV20
RSCG2VALA910L-HALAV20
RSCG2VALA910L-HB2ALAV20
RSCG2VALA910L-HB3ALAV20
RSOE2GLUA930L-HD22LEUV26
R-NH1ARGA944L-CD2LEUV26
R-NH1ARGA944L-HD21LEUV26
R-NH2ARGA944L-HSERV27
R-CZARGA944L-HD21LEUV26
RSCGGLUA1005LSOE2GLUV181
RSCDGLUA1005LSHB2GLUV181
RSOE1GLUA1005LSNGLUV181
RSOE1GLUA1005LSCBGLUV181
RSOE1GLUA1005LSOE2GLUV181
RSOE1GLUA1005LSHGLUV181
RSOE1GLUA1005LSHB2GLUV181
RSOE1GLUA1005LSHB3GLUV181
RSOE1GLUA1005LSHE1PHEV188

 - Title of columns started by 'R:' means Receptor, 'L:' means Ligand
 - In the Secondary Structure columns: 'H' means that residues/atoms in that row are part of Alpha Helix; 'S' - Beta Sheet


Krembil, Jurisica Lab.   July 16, 2025     Database: 1.0.4.1