Q8N126_Q13634.1 contacts (residues)

ReceptorR: Secondary StructureR: ResidueR; ChainR: Residue numberLigandL: Secondary StructureL: ResidueL: ChainL: Residue Number
R-META1LHLEUV12
R-META1L-ALAV5
R-META1L-LEUV8
R-META1LHLEUV9
R-LYSA2LHLEUV12
R-LYSA2L-LEUV8
R-GLNA20L-SERV36
R-GLNA20L-ASPV37
R-GLNA20LSGLUV38
R-GLNA20LSTHRV39
R-ARGA21LSLEUV127
R-ARGA21LHGLUV214
R-ARGA21LSTHRV39
R-CYSA22LSGLUV38
R-CYSA22LSTHRV39
R-CYSA22LSVALV40
R-CYSA22LSVALV41
R-CYSA22L-THRV45
R-CYSA22LSVALV46
R-CYSA22LSVALV47
R-TYRA23L-LYSV217
R-TYRA23LSVALV40
R-TYRA23LSVALV41
R-TYRA23L-GLYV44
R-TYRA23L-THRV45
R-GLYA24LSVALV40
R-GLYA24LSVALV41
R-GLYA24L-GLYV44
R-GLYA24L-THRV45
R-THRA25LSVALV41
R-THRA25L-ALAV42
R-THRA25L-GLYV43
R-THRA25L-GLYV44
R-ALAA26L-ILEV129
R-HISA27L-ILEV129
R-HISA27L-ARGV221
R-HISA28L-ARGV221
R-SERA29L-GLNV131
R-SERA29L-LYSV132
R-SERA29L-ARGV221
R-ILEA3LHLEUV12
R-ILEA3L-LEUV8
R-SERA30L-LYSV132
R-ILEA31L-LYSV132
R-ILEA31LSILEV134
R-VALA33LSTHRV223
R-VALA33LSSERV224
R-ASNA36LSARGV226
R-GLNA37LSARGV226
R-THRA38LSARGV226
R-THRA4LHLEUV11
R-THRA4LHLEUV12
R-ILEA41L-ASPV169
R-GLUA42L-ASPV169
R-GLYA43L-ASPV169
R-GLUA44L-ASPV169
R-SERA5LHLEUV12
R-SERA5L-PHEV15
R-THRA6L-PHEV15
R-SERA7L-PHEV15
R-SERA7L-TRPV19
R-CYSA8L-CYSV18
R-CYSA8L-TRPV19

 - 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_Q13634.1 contacts (residues & atoms)

ReceptorR: Secondary StructureR: AtomR: ResidueR; ChainR: Residue numberLigandL: Secondary StructureL; AtomL: ResidueL: ChainL: Residue Number
R-NMETA1L-CALAV5
R-NMETA1L-CBALAV5
R-NMETA1L-OALAV5
R-NMETA1L-HB1ALAV5
R-NMETA1L-CBLEUV8
R-NMETA1L-HLEUV8
R-NMETA1L-HB2LEUV8
R-NMETA1L-HB3LEUV8
R-NMETA1L-HD22LEUV8
R-NMETA1LHHD11LEUV9
R-CAMETA1L-HB1ALAV5
R-CAMETA1L-CBLEUV8
R-CAMETA1L-HB2LEUV8
R-CAMETA1L-HB3LEUV8
R-CAMETA1L-HD22LEUV8
R-CMETA1L-CBLEUV8
R-CMETA1L-CD2LEUV8
R-CMETA1L-HB2LEUV8
R-CMETA1L-HB3LEUV8
R-CMETA1L-HD21LEUV8
R-CMETA1L-HD22LEUV8
R-CBMETA1L-HB1ALAV5
R-CBMETA1LHHD12LEUV9
R-OMETA1L-CBLEUV8
R-OMETA1L-HB2LEUV8
R-OMETA1L-HB3LEUV8
R-OMETA1L-HD21LEUV8
R-OMETA1L-HD22LEUV8
R-OMETA1LHHGLEUV9
R-OMETA1LHCD1LEUV12
R-OMETA1LHHD11LEUV12
R-OMETA1LHHD13LEUV12
R-NLYSA2L-CBLEUV8
R-NLYSA2L-CGLEUV8
R-NLYSA2L-CD2LEUV8
R-NLYSA2L-HB2LEUV8
R-NLYSA2L-HB3LEUV8
R-NLYSA2L-HD21LEUV8
R-NLYSA2L-HD22LEUV8
R-NLYSA2L-HD23LEUV8
R-CALYSA2L-CD2LEUV8
R-CALYSA2L-HB3LEUV8
R-CALYSA2L-HD21LEUV8
R-CALYSA2L-HD22LEUV8
R-CALYSA2L-HD23LEUV8
R-CALYSA2LHHD13LEUV12
R-CLYSA2L-CD2LEUV8
R-CLYSA2L-HB3LEUV8
R-CLYSA2L-HD21LEUV8
R-CLYSA2L-HD22LEUV8
R-CLYSA2L-HD23LEUV8
R-CLYSA2LHCD1LEUV12
R-CLYSA2LHHD11LEUV12
R-CLYSA2LHHD12LEUV12
R-CLYSA2LHHD13LEUV12
R-CBLYSA2L-HD21LEUV8
R-CBLYSA2L-HD22LEUV8
R-OLYSA2L-HD21LEUV8
R-OLYSA2LHCGLEUV12
R-OLYSA2LHCD1LEUV12
R-OLYSA2LHHD11LEUV12
R-OLYSA2LHHD12LEUV12
R-OLYSA2LHHD13LEUV12
R-OLYSA2LHHD22LEUV12
R-NILEA3L-CD2LEUV8
R-NILEA3L-HB3LEUV8
R-NILEA3L-HGLEUV8
R-NILEA3L-HD21LEUV8
R-NILEA3L-HD22LEUV8
R-NILEA3L-HD23LEUV8
R-NILEA3LHCD1LEUV12
R-NILEA3LHHGLEUV12
R-NILEA3LHHD11LEUV12
R-NILEA3LHHD13LEUV12
R-NILEA3LHHD22LEUV12
R-CAILEA3L-HD21LEUV8
R-CAILEA3LHCD1LEUV12
R-CAILEA3LHHGLEUV12
R-CAILEA3LHHD13LEUV12
R-CAILEA3LHHD22LEUV12
R-CILEA3LHCGLEUV12
R-CILEA3LHCD1LEUV12
R-CILEA3LHCD2LEUV12
R-CILEA3LHHGLEUV12
R-CILEA3LHHD12LEUV12
R-CILEA3LHHD13LEUV12
R-CILEA3LHHD21LEUV12
R-CILEA3LHHD22LEUV12
R-CILEA3LHHD23LEUV12
R-CBILEA3L-HD21LEUV8
R-OILEA3LHCGLEUV12
R-OILEA3LHCD1LEUV12
R-OILEA3LHCD2LEUV12
R-OILEA3LHHGLEUV12
R-OILEA3LHHD12LEUV12
R-OILEA3LHHD13LEUV12
R-OILEA3LHHD21LEUV12
R-OILEA3LHHD22LEUV12
R-OILEA3LHHD23LEUV12
R-CG1ILEA3L-CD2LEUV8
R-CG1ILEA3L-HD21LEUV8
R-CG1ILEA3L-HD23LEUV8
R-NTHRA4LHCGLEUV12
R-NTHRA4LHCD1LEUV12
R-NTHRA4LHCD2LEUV12
R-NTHRA4LHHALEUV12
R-NTHRA4LHHGLEUV12
R-NTHRA4LHHD13LEUV12
R-NTHRA4LHHD21LEUV12
R-NTHRA4LHHD22LEUV12
R-NTHRA4LHHD23LEUV12
R-CATHRA4LHCGLEUV12
R-CATHRA4LHCD2LEUV12
R-CATHRA4LHHALEUV12
R-CATHRA4LHHGLEUV12
R-CATHRA4LHHD21LEUV12
R-CATHRA4LHHD22LEUV12
R-CATHRA4LHHD23LEUV12
R-CTHRA4LHCD2LEUV12
R-CTHRA4LHHD21LEUV12
R-CTHRA4LHHD22LEUV12
R-CTHRA4LHHD23LEUV12
R-CBTHRA4LHHD21LEUV12
R-CBTHRA4LHHD22LEUV12
R-OTHRA4LHHD22LEUV12
R-CG2THRA4LHHB3LEUV11
R-CG2THRA4LHHD21LEUV11
R-NSERA5LHCD2LEUV12
R-NSERA5LHHD21LEUV12
R-NSERA5LHHD22LEUV12
R-NSERA5LHHD23LEUV12
R-CSERA5L-HB3PHEV15
R-OSERA5L-CBPHEV15
R-OSERA5L-HB2PHEV15
R-OSERA5L-HB3PHEV15
R-CATHRA6L-HD1PHEV15
R-CTHRA6L-HD1PHEV15
R-NSERA7L-CD1PHEV15
R-NSERA7L-HD1PHEV15
R-NSERA7L-HE1PHEV15
R-CSERA7L-HE1TRPV19
R-OSERA7L-HZ2TRPV19
R-OSERA7L-HE1TRPV19
R-NCYSA8L-HE1TRPV19
R-CACYSA8L-HE1TRPV19
R-CBCYSA8L-CE2TRPV19
R-CBCYSA8L-NE1TRPV19
R-CBCYSA8L-CZ2TRPV19
R-CBCYSA8L-HZ2TRPV19
R-CBCYSA8L-HE1TRPV19
R-OCYSA8L-HB3CYSV18
R-OCYSA8L-HE1TRPV19
R-SGCYSA8L-CZ2TRPV19
R-SGCYSA8L-HZ2TRPV19
R-CGLNA20LSOE2GLUV38
R-CBGLNA20LSOE1GLUV38
R-OGLNA20L-OASPV37
R-OGLNA20LSCDGLUV38
R-OGLNA20LSOE1GLUV38
R-OGLNA20LSOE2GLUV38
R-OGLNA20LSHAGLUV38
R-OGLNA20LSHTHRV39
R-CGGLNA20LSOE1GLUV38
R-CGGLNA20LSOE2GLUV38
R-CDGLNA20LSOE1GLUV38
R-OE1GLNA20L-OGSERV36
R-CAARGA21LSOTHRV39
R-CAARGA21LSHTHRV39
R-CBARGA21LSOTHRV39
R-CBARGA21LSHBTHRV39
R-CGARGA21LSCBTHRV39
R-CGARGA21LSOTHRV39
R-CGARGA21LSHTHRV39
R-CGARGA21LSHBTHRV39
R-CDARGA21LSCBTHRV39
R-CDARGA21LSHBTHRV39
R-CDARGA21LSHG21THRV39
R-CDARGA21LSHG23THRV39
R-NEARGA21LSCBTHRV39
R-NEARGA21LSCG2THRV39
R-NEARGA21LSOG1THRV39
R-NEARGA21LSHBTHRV39
R-NEARGA21LSHG21THRV39
R-NEARGA21LSHG23THRV39
R-NEARGA21LSHD11LEUV127
R-NH1ARGA21LSHG21THRV39
R-NH1ARGA21LSHD11LEUV127
R-NH1ARGA21LHOE2GLUV214
R-NH1ARGA21LHHB3GLUV214
R-NH2ARGA21LSCBTHRV39
R-NH2ARGA21LSCG2THRV39
R-NH2ARGA21LSOG1THRV39
R-NH2ARGA21LSHBTHRV39
R-NH2ARGA21LSHG21THRV39
R-NH2ARGA21LSHG22THRV39
R-NH2ARGA21LSHG23THRV39
R-NH2ARGA21LSHD11LEUV127
R-NH2ARGA21LSHD23LEUV127
R-NH2ARGA21LHCDGLUV214
R-NH2ARGA21LHOE1GLUV214
R-NH2ARGA21LHOE2GLUV214
R-NH2ARGA21LHHB3GLUV214
R-CZARGA21LSCBTHRV39
R-CZARGA21LSCG2THRV39
R-CZARGA21LSHBTHRV39
R-CZARGA21LSHG21THRV39
R-CZARGA21LSHG23THRV39
R-CZARGA21LSHD11LEUV127
R-NCYSA22LSOE2GLUV38
R-NCYSA22LSOTHRV39
R-CACYSA22LSHAVALV46
R-CCYSA22LSOTHRV39
R-CCYSA22LSHAVALV40
R-CCYSA22LSHBVALV40
R-CCYSA22LSHG21VALV40
R-CCYSA22L-OTHRV45
R-CBCYSA22LSHBVALV40
R-CBCYSA22L-OTHRV45
R-CBCYSA22LSCAVALV46
R-CBCYSA22LSHAVALV46
R-CBCYSA22LSHG21VALV46
R-CBCYSA22LSNVALV47
R-CBCYSA22LSHVALV47
R-OCYSA22LSCTHRV39
R-OCYSA22LSOTHRV39
R-OCYSA22LSNVALV40
R-OCYSA22LSCAVALV40
R-OCYSA22LSCBVALV40
R-OCYSA22LSCG2VALV40
R-OCYSA22LSHAVALV40
R-OCYSA22LSHBVALV40
R-OCYSA22LSHG21VALV40
R-OCYSA22LSHG22VALV40
R-OCYSA22LSHVALV41
R-SGCYSA22LSOE2GLUV38
R-SGCYSA22LSHAVALV46
R-SGCYSA22LSHG21VALV46
R-SGCYSA22LSNVALV47
R-SGCYSA22LSCAVALV47
R-SGCYSA22LSCBVALV47
R-SGCYSA22LSOVALV47
R-SGCYSA22LSHVALV47
R-SGCYSA22LSHBVALV47
R-SGCYSA22LSHG21VALV47
R-NTYRA23LSHG21VALV40
R-NTYRA23L-OTHRV45
R-NTYRA23L-HZ1LYSV217
R-CATYRA23LSHG21VALV40
R-CATYRA23L-OTHRV45
R-CATYRA23L-HTHRV45
R-CTYRA23LSCG2VALV40
R-CTYRA23LSHAVALV40
R-CTYRA23LSHG21VALV40
R-CTYRA23LSHG22VALV40
R-CTYRA23LSHG23VALV40
R-CTYRA23LSHVALV41
R-CTYRA23L-CAGLYV44
R-CTYRA23L-CGLYV44
R-CTYRA23L-HA2GLYV44
R-CTYRA23L-HA3GLYV44
R-CTYRA23L-NTHRV45
R-CTYRA23L-OTHRV45
R-CTYRA23L-HTHRV45
R-CBTYRA23LSHG21VALV40
R-CBTYRA23L-NTHRV45
R-CBTYRA23L-CATHRV45
R-CBTYRA23L-CTHRV45
R-CBTYRA23L-CBTHRV45
R-CBTYRA23L-OTHRV45
R-CBTYRA23L-HTHRV45
R-CBTYRA23L-HBTHRV45
R-OTYRA23LSCAVALV40
R-OTYRA23LSCBVALV40
R-OTYRA23LSCG2VALV40
R-OTYRA23LSHAVALV40
R-OTYRA23LSHBVALV40
R-OTYRA23LSHG21VALV40
R-OTYRA23LSHG22VALV40
R-OTYRA23LSHG23VALV40
R-OTYRA23LSNVALV41
R-OTYRA23LSOVALV41
R-OTYRA23LSHVALV41
R-OTYRA23L-CAGLYV44
R-OTYRA23L-CGLYV44
R-OTYRA23L-HA2GLYV44
R-OTYRA23L-HA3GLYV44
R-OTYRA23L-NTHRV45
R-OTYRA23L-CATHRV45
R-OTYRA23L-CTHRV45
R-OTYRA23L-OTHRV45
R-OTYRA23L-HTHRV45
R-CGTYRA23L-OTHRV45
R-CGTYRA23L-HTHRV45
R-CGTYRA23L-HBTHRV45
R-CD2TYRA23L-OTHRV45
R-NGLYA24LSCG2VALV40
R-NGLYA24LSHG21VALV40
R-NGLYA24LSHG23VALV40
R-NGLYA24LSHVALV41
R-NGLYA24LSHBVALV41
R-NGLYA24L-CAGLYV44
R-NGLYA24L-HA2GLYV44
R-NGLYA24L-HA3GLYV44
R-NGLYA24L-NTHRV45
R-NGLYA24L-HTHRV45
R-CAGLYA24LSHG21VALV40
R-CAGLYA24LSHG23VALV40
R-CAGLYA24LSCVALV41
R-CAGLYA24LSCBVALV41
R-CAGLYA24LSOVALV41
R-CAGLYA24LSHVALV41
R-CAGLYA24LSHBVALV41
R-CAGLYA24L-NGLYV44
R-CAGLYA24L-CAGLYV44
R-CAGLYA24L-CGLYV44
R-CAGLYA24L-HGLYV44
R-CAGLYA24L-HA2GLYV44
R-CAGLYA24L-HA3GLYV44
R-CAGLYA24L-NTHRV45
R-CAGLYA24L-HTHRV45
R-CGLYA24LSCBVALV41
R-CGLYA24LSOVALV41
R-CGLYA24LSHBVALV41
R-CGLYA24LSHG11VALV41
R-CGLYA24L-NGLYV44
R-CGLYA24L-CAGLYV44
R-CGLYA24L-HGLYV44
R-CGLYA24L-HA2GLYV44
R-CGLYA24L-HA3GLYV44
R-OGLYA24LSCBVALV41
R-OGLYA24LSCG1VALV41
R-OGLYA24LSCG2VALV41
R-OGLYA24LSHBVALV41
R-OGLYA24LSHG11VALV41
R-OGLYA24LSHG12VALV41
R-OGLYA24LSHG23VALV41
R-OGLYA24L-HA3GLYV44
R-NTHRA25LSHBVALV41
R-NTHRA25L-CGLYV43
R-NTHRA25L-OGLYV43
R-NTHRA25L-NGLYV44
R-NTHRA25L-CAGLYV44
R-NTHRA25L-HGLYV44
R-NTHRA25L-HA2GLYV44
R-NTHRA25L-HA3GLYV44
R-CATHRA25L-HA2GLYV44
R-CTHRA25L-HA3GLYV43
R-OTHRA25L-OALAV42
R-OTHRA25L-CAGLYV43
R-OTHRA25L-CGLYV43
R-OTHRA25L-OGLYV43
R-OTHRA25L-HA3GLYV43
R-OTHRA25L-NGLYV44
R-OG1THRA25L-OGLYV43
R-OG1THRA25L-HA2GLYV44
R-CALAA26L-CD1ILEV129
R-CALAA26L-HD11ILEV129
R-CALAA26L-HD12ILEV129
R-CALAA26L-HD13ILEV129
R-OALAA26L-CD1ILEV129
R-OALAA26L-HD11ILEV129
R-OALAA26L-HD12ILEV129
R-OALAA26L-HD13ILEV129
R-NHISA27L-HG21ILEV129
R-NHISA27L-HD12ILEV129
R-NHISA27L-HD13ILEV129
R-CHISA27L-HH12ARGV221
R-CHISA27L-HH22ARGV221
R-OHISA27L-HG21ILEV129
R-OHISA27L-NH1ARGV221
R-OHISA27L-NH2ARGV221
R-OHISA27L-CZARGV221
R-OHISA27L-HH12ARGV221
R-OHISA27L-HH21ARGV221
R-OHISA27L-HH22ARGV221
R-NHISA28L-HH22ARGV221
R-CAHISA28L-HH22ARGV221
R-CHISA28L-NH2ARGV221
R-CHISA28L-HH22ARGV221
R-NSERA29L-NH2ARGV221
R-NSERA29L-HH21ARGV221
R-NSERA29L-HH22ARGV221
R-CASERA29L-HH21ARGV221
R-CSERA29L-HB2LYSV132
R-CSERA29L-HD2LYSV132
R-CBSERA29L-HLYSV132
R-CBSERA29L-HH21ARGV221
R-OSERA29L-CBLYSV132
R-OSERA29L-CGLYSV132
R-OSERA29L-CDLYSV132
R-OSERA29L-HLYSV132
R-OSERA29L-HB2LYSV132
R-OSERA29L-HB3LYSV132
R-OSERA29L-HD2LYSV132
R-OSERA29L-HD3LYSV132
R-OGSERA29L-HAGLNV131
R-OGSERA29L-HB3GLNV131
R-OGSERA29L-HG2GLNV131
R-OGSERA29L-NLYSV132
R-OGSERA29L-HLYSV132
R-OGSERA29L-HB2LYSV132
R-OGSERA29L-HB3LYSV132
R-OGSERA29L-NH2ARGV221
R-OGSERA29L-HH21ARGV221
R-OGSERA29L-HH22ARGV221
R-CASERA30L-HD2LYSV132
R-CASERA30L-HD3LYSV132
R-CSERA30L-HD3LYSV132
R-NILEA31L-CDLYSV132
R-NILEA31L-NZLYSV132
R-NILEA31L-HD2LYSV132
R-NILEA31L-HD3LYSV132
R-NILEA31L-HZ3LYSV132
R-CAILEA31L-HD3LYSV132
R-CAILEA31L-HZ3LYSV132
R-CILEA31L-NZLYSV132
R-CILEA31L-HD3LYSV132
R-CILEA31L-HZ3LYSV132
R-CBILEA31L-HD3LYSV132
R-CBILEA31L-HZ3LYSV132
R-OILEA31L-CELYSV132
R-OILEA31L-NZLYSV132
R-OILEA31L-HD3LYSV132
R-OILEA31L-HE2LYSV132
R-OILEA31L-HZ1LYSV132
R-OILEA31L-HZ2LYSV132
R-OILEA31L-HZ3LYSV132
R-CG1ILEA31L-HB3LYSV132
R-CG1ILEA31L-HD3LYSV132
R-CG1ILEA31LSHG12ILEV134
R-CG2ILEA31LSHG12ILEV134
R-CD1ILEA31L-HB3LYSV132
R-CD1ILEA31LSCG1ILEV134
R-CD1ILEA31LSCD1ILEV134
R-CD1ILEA31LSHG12ILEV134
R-CD1ILEA31LSHG13ILEV134
R-CD1ILEA31LSHD11ILEV134
R-CD1ILEA31LSHD12ILEV134
R-CG1VALA33LSOSERV224
R-CG2VALA33LSHG22THRV223
R-CASNA36LSHD2ARGV226
R-CASNA36LSHD3ARGV226
R-OASNA36LSCDARGV226
R-OASNA36LSNEARGV226
R-OASNA36LSNH1ARGV226
R-OASNA36LSCZARGV226
R-OASNA36LSHD2ARGV226
R-OASNA36LSHD3ARGV226
R-OASNA36LSHEARGV226
R-OASNA36LSHH11ARGV226
R-CGLNA37LSNH1ARGV226
R-CGLNA37LSNH2ARGV226
R-CGLNA37LSCZARGV226
R-CGLNA37LSHH12ARGV226
R-CGLNA37LSHH22ARGV226
R-OGLNA37LSNH2ARGV226
R-OGLNA37LSHH21ARGV226
R-OGLNA37LSHH22ARGV226
R-NTHRA38LSNH1ARGV226
R-NTHRA38LSNH2ARGV226
R-NTHRA38LSCZARGV226
R-NTHRA38LSHH12ARGV226
R-NTHRA38LSHH22ARGV226
R-CATHRA38LSHH12ARGV226
R-CATHRA38LSHH22ARGV226
R-CTHRA38LSHH12ARGV226
R-CTHRA38LSHH22ARGV226
R-OTHRA38LSNH1ARGV226
R-OTHRA38LSHH12ARGV226
R-OTHRA38LSHH22ARGV226
R-OG1THRA38LSNH2ARGV226
R-OG1THRA38LSHH22ARGV226
R-CILEA41L-OD2ASPV169
R-NGLUA42L-OD2ASPV169
R-CAGLUA42L-OD2ASPV169
R-CGLUA42L-CGASPV169
R-CGLUA42L-OD2ASPV169
R-OGLUA42L-OD2ASPV169
R-NGLYA43L-CGASPV169
R-NGLYA43L-OD2ASPV169
R-NGLYA43L-HB3ASPV169
R-CAGLYA43L-HB3ASPV169
R-CGLYA43L-CBASPV169
R-CGLYA43L-HB3ASPV169
R-OGLYA43L-CBASPV169
R-OGLYA43L-HB2ASPV169
R-OGLYA43L-HB3ASPV169
R-NGLUA44L-HB3ASPV169
R-CAGLUA44L-HB3ASPV169
R-CGGLUA44L-HB3ASPV169

 - 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