Q69YW2_P53779.1 contacts (residues)

ReceptorR: Secondary StructureR: ResidueR; ChainR: Residue numberLigandL: Secondary StructureL: ResidueL: ChainL: Residue Number
RHGLUA323LHTRPV113
RHGLUA323LHILEV117
RHHISA324LHTRPV113
RHHISA324LHILEV117
RHLEUA327LHSERV116
RHLEUA327LHILEV117
RHLEUA327LHGLYV120
RHLEUA327LHMETV121
RHSERA330LHVALV124
RHGLNA331LHGLYV120
RHASPA334LHVALV124
R-PROA357LHMETV123
R-GLUA425LHALAV98
R-SERA426LHILEV102
R-SERA426LHTRPV94
R-SERA426LHLEUV95
R-SERA426LHALAV98
R-SERA426LHALAV99
R-LEUA427LHILEV102
R-LEUA427LHLEUV95
R-LEUA427LHALAV98
R-LEUA427LHALAV99
R-PROA428LHLEUV95
R-PROA428LHASNV96
R-PROA428LHALAV99
R-PROA429LHTHRV69
R-PROA429LHASNV96
R-PROA429LHALAV99
R-SERA430LHTHRV69
R-SERA430LHSERV72
R-SERA431LHPROV65
R-SERA431LHGLYV68
R-SERA431LHTHRV69
R-SERA431LHSERV72
R-SERA432L-HISV5
R-SERA432LHPROV65
R-SERA432LHGLYV68
R-VALA433L-HISV5
R-VALA433LHVALV64
R-VALA433LHPROV65
R-VALA433LHALAV8
R-ASNA434LHALAV11
R-ASNA434LHALAV12
R-ASNA434LHVALV64
R-ASNA434LHASPV7
R-ASNA434LHALAV8
R-ASNA434LHGLUV9
R-ASPA435LHVALV64
R-ILEA436LHALAV11
R-SERA438L-METV49
R-META439L-METV49
R-SERA440L-METV49
R-THRA441L-ILEV46
R-THRA441L-PROV47
R-THRA441L-TYRV48
R-GLNA443L-ALAV44
R-THRA444L-LYSV39
R-THRA444L-ALAV44
R-LEUA445L-LYSV39
R-LEUA445LHPROV41
R-LEUA445L-ALAV44
R-ALAA446L-LYSV38
R-ALAA446L-LYSV39
R-ALAA446L-GLYV40
R-ALAA446LHPROV41
R-SERA447L-LYSV38
R-SERA447LHPROV41

 - 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





Q69YW2_P53779.1 contacts (residues & atoms)

ReceptorR: Secondary StructureR: AtomR: ResidueR; ChainR: Residue numberLigandL: Secondary StructureL; AtomL: ResidueL: ChainL: Residue Number
RHNGLUA323LHHZ3TRPV113
RHCAGLUA323LHHZ3TRPV113
RHCGLUA323LHHZ3TRPV113
RHCGLUA323LHCD1ILEV117
RHCGLUA323LHHD11ILEV117
RHCGLUA323LHHD13ILEV117
RHCBGLUA323LHHZ3TRPV113
RHCBGLUA323LHHD11ILEV117
RHCBGLUA323LHHD13ILEV117
RHOGLUA323LHCD1ILEV117
RHOGLUA323LHHG12ILEV117
RHOGLUA323LHHD11ILEV117
RHOGLUA323LHHD13ILEV117
RHNHISA324LHHE3TRPV113
RHNHISA324LHHZ3TRPV113
RHNHISA324LHCD1ILEV117
RHNHISA324LHHD11ILEV117
RHNHISA324LHHD13ILEV117
RHCAHISA324LHHE3TRPV113
RHCAHISA324LHCD1ILEV117
RHCAHISA324LHHG12ILEV117
RHCAHISA324LHHD11ILEV117
RHCBHISA324LHHE3TRPV113
RHCBHISA324LHHD11ILEV117
RHND1HISA324LHHB2TRPV113
RHND1HISA324LHHE3TRPV113
RHCBLEUA327LHCG1ILEV117
RHCBLEUA327LHHAILEV117
RHCBLEUA327LHHG12ILEV117
RHCBLEUA327LHHG22ILEV117
RHCGLEUA327LHCAILEV117
RHCGLEUA327LHHAILEV117
RHCGLEUA327LHHG12ILEV117
RHCGLEUA327LHHG22ILEV117
RHCGLEUA327LHHA3GLYV120
RHCD1LEUA327LHOILEV117
RHCD1LEUA327LHHAILEV117
RHCD1LEUA327LHHG22ILEV117
RHCD1LEUA327LHHA3GLYV120
RHCD1LEUA327LHHMETV121
RHCD1LEUA327LHHG3METV121
RHCD2LEUA327LHCSERV116
RHCD2LEUA327LHOSERV116
RHCD2LEUA327LHNILEV117
RHCD2LEUA327LHCAILEV117
RHCD2LEUA327LHCILEV117
RHCD2LEUA327LHCBILEV117
RHCD2LEUA327LHOILEV117
RHCD2LEUA327LHCG1ILEV117
RHCD2LEUA327LHCG2ILEV117
RHCD2LEUA327LHHILEV117
RHCD2LEUA327LHHAILEV117
RHCD2LEUA327LHHG12ILEV117
RHCD2LEUA327LHHG13ILEV117
RHCD2LEUA327LHHG22ILEV117
RHCD2LEUA327LHHA3GLYV120
RHOGSERA330LHHG23VALV124
RHNE2GLNA331LHCAGLYV120
RHNE2GLNA331LHHA2GLYV120
RHNE2GLNA331LHHA3GLYV120
RHCGASPA334LHHG22VALV124
RHOD2ASPA334LHHG22VALV124
R-CGPROA357LHSDMETV123
R-CGPROA357LHHE1METV123
R-CDPROA357LHSDMETV123
R-CDPROA357LHHE1METV123
R-CGLUA425LHHB1ALAV98
R-NSERA426LHCBALAV98
R-NSERA426LHHB1ALAV98
R-NSERA426LHHB2ALAV98
R-NSERA426LHHB3ALAV98
R-NSERA426LHHD11ILEV102
R-CASERA426LHHD21LEUV95
R-CASERA426LHCBALAV98
R-CASERA426LHHB1ALAV98
R-CASERA426LHHB2ALAV98
R-CASERA426LHHD11ILEV102
R-CSERA426LHCBALAV98
R-CSERA426LHHB1ALAV98
R-CSERA426LHHB2ALAV98
R-CSERA426LHCD1ILEV102
R-CSERA426LHHD11ILEV102
R-CSERA426LHHD12ILEV102
R-CSERA426LHHD13ILEV102
R-CBSERA426LHCD2LEUV95
R-CBSERA426LHHALEUV95
R-CBSERA426LHHD21LEUV95
R-CBSERA426LHHD22LEUV95
R-CBSERA426LHHD23LEUV95
R-CBSERA426LHCBALAV98
R-CBSERA426LHHB1ALAV98
R-CBSERA426LHHB2ALAV98
R-CBSERA426LHHB3ALAV98
R-OSERA426LHCAALAV98
R-OSERA426LHCALAV98
R-OSERA426LHCBALAV98
R-OSERA426LHOALAV98
R-OSERA426LHHAALAV98
R-OSERA426LHHB1ALAV98
R-OSERA426LHHB2ALAV98
R-OSERA426LHHB3ALAV98
R-OSERA426LHNALAV99
R-OSERA426LHHALAV99
R-OSERA426LHHAALAV99
R-OSERA426LHCG1ILEV102
R-OSERA426LHCD1ILEV102
R-OSERA426LHHG13ILEV102
R-OSERA426LHHD11ILEV102
R-OSERA426LHHD12ILEV102
R-OSERA426LHHD13ILEV102
R-OGSERA426LHOTRPV94
R-OGSERA426LHCD2LEUV95
R-OGSERA426LHHALEUV95
R-OGSERA426LHHD21LEUV95
R-OGSERA426LHHD22LEUV95
R-OGSERA426LHHD23LEUV95
R-OGSERA426LHCBALAV98
R-OGSERA426LHHB1ALAV98
R-OGSERA426LHHB2ALAV98
R-OGSERA426LHHB3ALAV98
R-NLEUA427LHHD21LEUV95
R-NLEUA427LHHD22LEUV95
R-NLEUA427LHHB1ALAV98
R-NLEUA427LHHB2ALAV98
R-NLEUA427LHCD1ILEV102
R-NLEUA427LHHD11ILEV102
R-NLEUA427LHHD12ILEV102
R-CALEUA427LHCBALAV99
R-CALEUA427LHHAALAV99
R-CALEUA427LHHB3ALAV99
R-CALEUA427LHHD12ILEV102
R-CLEUA427LHOLEUV95
R-CLEUA427LHHB3LEUV95
R-CLEUA427LHHD22LEUV95
R-CLEUA427LHCBALAV99
R-CLEUA427LHHB3ALAV99
R-CBLEUA427LHHD12ILEV102
R-OLEUA427LHCALEUV95
R-OLEUA427LHCBLEUV95
R-OLEUA427LHOLEUV95
R-OLEUA427LHCGLEUV95
R-OLEUA427LHCD2LEUV95
R-OLEUA427LHHALEUV95
R-OLEUA427LHHB3LEUV95
R-OLEUA427LHHD13LEUV95
R-OLEUA427LHHD21LEUV95
R-OLEUA427LHHD22LEUV95
R-OLEUA427LHHD23LEUV95
R-OLEUA427LHHB3ALAV99
R-CGLEUA427LHCD1ILEV102
R-CGLEUA427LHHG23ILEV102
R-CGLEUA427LHHD12ILEV102
R-CGLEUA427LHHD13ILEV102
R-CD1LEUA427LHHD13ILEV102
R-CD2LEUA427LHHAALAV99
R-CD2LEUA427LHCD1ILEV102
R-CD2LEUA427LHHBILEV102
R-CD2LEUA427LHHG23ILEV102
R-CD2LEUA427LHHD12ILEV102
R-CD2LEUA427LHHD13ILEV102
R-NPROA428LHOLEUV95
R-NPROA428LHHB3LEUV95
R-NPROA428LHCBALAV99
R-NPROA428LHHB1ALAV99
R-NPROA428LHHB2ALAV99
R-NPROA428LHHB3ALAV99
R-CAPROA428LHCAALAV99
R-CAPROA428LHCBALAV99
R-CAPROA428LHHAALAV99
R-CAPROA428LHHB1ALAV99
R-CAPROA428LHHB2ALAV99
R-CAPROA428LHHB3ALAV99
R-CPROA428LHOLEUV95
R-CPROA428LHHAASNV96
R-CPROA428LHCBALAV99
R-CPROA428LHHB1ALAV99
R-CPROA428LHHB2ALAV99
R-CPROA428LHHB3ALAV99
R-CBPROA428LHHB1ALAV99
R-CBPROA428LHHB3ALAV99
R-OPROA428LHCLEUV95
R-OPROA428LHOLEUV95
R-OPROA428LHHB3LEUV95
R-OPROA428LHNASNV96
R-OPROA428LHCAASNV96
R-OPROA428LHCGASNV96
R-OPROA428LHOD1ASNV96
R-OPROA428LHHAASNV96
R-OPROA428LHCAALAV99
R-OPROA428LHCBALAV99
R-OPROA428LHHALAV99
R-OPROA428LHHB1ALAV99
R-OPROA428LHHB2ALAV99
R-OPROA428LHHB3ALAV99
R-CDPROA428LHHB3LEUV95
R-CDPROA428LHHB3ALAV99
R-NPROA429LHCBALAV99
R-NPROA429LHHB1ALAV99
R-NPROA429LHHB2ALAV99
R-NPROA429LHHB3ALAV99
R-CAPROA429LHHG21THRV69
R-CAPROA429LHHG23THRV69
R-CAPROA429LHHB1ALAV99
R-CPROA429LHCG2THRV69
R-CPROA429LHOG1THRV69
R-CPROA429LHHG21THRV69
R-CPROA429LHHG22THRV69
R-CPROA429LHHG23THRV69
R-OPROA429LHCG2THRV69
R-OPROA429LHHATHRV69
R-OPROA429LHHG21THRV69
R-OPROA429LHHG22THRV69
R-OPROA429LHHG23THRV69
R-OPROA429LHOD1ASNV96
R-CDPROA429LHOD1ASNV96
R-NSERA430LHCBTHRV69
R-NSERA430LHCG2THRV69
R-NSERA430LHOG1THRV69
R-NSERA430LHHG21THRV69
R-NSERA430LHHG23THRV69
R-CASERA430LHOG1THRV69
R-CASERA430LHHG1THRV69
R-CASERA430LHHG23THRV69
R-CSERA430LHCATHRV69
R-CSERA430LHCBTHRV69
R-CSERA430LHCG2THRV69
R-CSERA430LHOG1THRV69
R-CSERA430LHHATHRV69
R-CSERA430LHHG1THRV69
R-CSERA430LHHG23THRV69
R-OSERA430LHOG1THRV69
R-OSERA430LHHATHRV69
R-OSERA430LHHG23THRV69
R-OSERA430LHHGSERV72
R-NSERA431LHNTHRV69
R-NSERA431LHCATHRV69
R-NSERA431LHCBTHRV69
R-NSERA431LHOG1THRV69
R-NSERA431LHHTHRV69
R-NSERA431LHHATHRV69
R-NSERA431LHHG1THRV69
R-NSERA431LHHG23THRV69
R-CASERA431LHHA2GLYV68
R-CASERA431LHHATHRV69
R-CSERA431LHOPROV65
R-CSERA431LHHAPROV65
R-CSERA431LHHA2GLYV68
R-CBSERA431LHCGLYV68
R-CBSERA431LHOGLYV68
R-CBSERA431LHHA2GLYV68
R-CBSERA431LHNTHRV69
R-CBSERA431LHHATHRV69
R-CBSERA431LHHB3SERV72
R-OSERA431LHCAPROV65
R-OSERA431LHCPROV65
R-OSERA431LHCBPROV65
R-OSERA431LHOPROV65
R-OSERA431LHHAPROV65
R-OSERA431LHHB2PROV65
R-OSERA431LHHB3PROV65
R-OSERA431LHCAGLYV68
R-OSERA431LHHA2GLYV68
R-OSERA431LHNTHRV69
R-OSERA431LHHTHRV69
R-OSERA431LHHG1THRV69
R-OGSERA431LHCAGLYV68
R-OGSERA431LHCGLYV68
R-OGSERA431LHOGLYV68
R-OGSERA431LHHA2GLYV68
R-OGSERA431LHHA3GLYV68
R-OGSERA431LHNTHRV69
R-OGSERA431LHCATHRV69
R-OGSERA431LHHTHRV69
R-OGSERA431LHHATHRV69
R-OGSERA431LHCBSERV72
R-OGSERA431LHHSERV72
R-OGSERA431LHHB2SERV72
R-OGSERA431LHHB3SERV72
R-NSERA432LHHA2GLYV68
R-CASERA432LHHAPROV65
R-CSERA432LHHAPROV65
R-CSERA432LHHA2GLYV68
R-OSERA432LHCAGLYV68
R-OSERA432LHHA2GLYV68
R-OSERA432LHHA3GLYV68
R-OGSERA432L-ND1HISV5
R-OGSERA432L-CE1HISV5
R-OGSERA432L-HE1HISV5
R-NVALA433LHHG11VALV64
R-NVALA433LHHG13VALV64
R-NVALA433LHHAPROV65
R-CAVALA433LHHB1ALAV8
R-CAVALA433LHHG11VALV64
R-CVALA433LHHB1ALAV8
R-CVALA433LHCG1VALV64
R-CVALA433LHHG11VALV64
R-CVALA433LHHG12VALV64
R-CVALA433LHHG13VALV64
R-OVALA433LHCBVALV64
R-OVALA433LHCG1VALV64
R-OVALA433LHHG11VALV64
R-OVALA433LHHG12VALV64
R-OVALA433LHHG13VALV64
R-CG1VALA433LHHB1ALAV8
R-CG2VALA433L-CE1HISV5
R-CG2VALA433L-NE2HISV5
R-CG2VALA433L-HE1HISV5
R-CG2VALA433L-HE2HISV5
R-NASNA434LHHB1ALAV8
R-NASNA434LHCG1VALV64
R-NASNA434LHHG11VALV64
R-NASNA434LHHG12VALV64
R-NASNA434LHHG13VALV64
R-CAASNA434LHHB1ALAV8
R-CAASNA434LHHG12VALV64
R-CASNA434LHHG12VALV64
R-CBASNA434LHCBALAV8
R-CBASNA434LHOALAV8
R-CBASNA434LHHAALAV8
R-CBASNA434LHHB1ALAV8
R-CBASNA434LHHB3ALAV8
R-CGASNA434LHCAALAV8
R-CGASNA434LHCALAV8
R-CGASNA434LHCBALAV8
R-CGASNA434LHOALAV8
R-CGASNA434LHHAALAV8
R-CGASNA434LHHB1ALAV8
R-CGASNA434LHHB2ALAV8
R-CGASNA434LHHB3ALAV8
R-CGASNA434LHHB3ALAV11
R-CGASNA434LHHB3ALAV12
R-ND2ASNA434LHCASPV7
R-ND2ASNA434LHOASPV7
R-ND2ASNA434LHNALAV8
R-ND2ASNA434LHCAALAV8
R-ND2ASNA434LHCALAV8
R-ND2ASNA434LHCBALAV8
R-ND2ASNA434LHOALAV8
R-ND2ASNA434LHHALAV8
R-ND2ASNA434LHHAALAV8
R-ND2ASNA434LHHB1ALAV8
R-ND2ASNA434LHHB2ALAV8
R-ND2ASNA434LHHB3ALAV8
R-ND2ASNA434LHNGLUV9
R-ND2ASNA434LHHB3ALAV11
R-OD1ASNA434LHCAALAV8
R-OD1ASNA434LHCALAV8
R-OD1ASNA434LHCBALAV8
R-OD1ASNA434LHOALAV8
R-OD1ASNA434LHHAALAV8
R-OD1ASNA434LHHB1ALAV8
R-OD1ASNA434LHHB2ALAV8
R-OD1ASNA434LHNGLUV9
R-OD1ASNA434LHHAGLUV9
R-OD1ASNA434LHHB3ALAV11
R-OD1ASNA434LHCBALAV12
R-OD1ASNA434LHHALAV12
R-OD1ASNA434LHHB2ALAV12
R-OD1ASNA434LHHB3ALAV12
R-NASPA435LHHG12VALV64
R-CD1ILEA436LHHB1ALAV11
R-CSERA438L-HE1METV49
R-NMETA439L-HE1METV49
R-CAMETA439L-HE1METV49
R-CMETA439L-CEMETV49
R-CMETA439L-HE1METV49
R-CMETA439L-HE3METV49
R-OMETA439L-SDMETV49
R-OMETA439L-CEMETV49
R-OMETA439L-HE1METV49
R-OMETA439L-HE3METV49
R-NSERA440L-HE3METV49
R-OSERA440L-HG3METV49
R-CBTHRA441L-HAPROV47
R-CBTHRA441L-HTYRV48
R-CBTHRA441L-HD2TYRV48
R-CG2THRA441L-OTYRV48
R-CG2THRA441L-HB2TYRV48
R-CG2THRA441L-HD2TYRV48
R-OG1THRA441L-OILEV46
R-OG1THRA441L-CAPROV47
R-OG1THRA441L-CPROV47
R-OG1THRA441L-HAPROV47
R-OG1THRA441L-NTYRV48
R-OG1THRA441L-OTYRV48
R-OG1THRA441L-CD2TYRV48
R-OG1THRA441L-HTYRV48
R-OG1THRA441L-HD2TYRV48
R-NGLNA443L-HB1ALAV44
R-CAGLNA443L-HB1ALAV44
R-CGLNA443L-HB1ALAV44
R-CGLNA443L-HB2ALAV44
R-NTHRA444L-HB1ALAV44
R-NTHRA444L-HB2ALAV44
R-CATHRA444L-HB1ALAV44
R-CATHRA444L-HB2ALAV44
R-CTHRA444L-HB3LYSV39
R-CTHRA444L-HD3LYSV39
R-CTHRA444L-HB2ALAV44
R-OTHRA444L-CBLYSV39
R-OTHRA444L-CDLYSV39
R-OTHRA444L-HB3LYSV39
R-OTHRA444L-HD3LYSV39
R-NLEUA445LHHAPROV41
R-NLEUA445LHHB3PROV41
R-NLEUA445L-HB2ALAV44
R-CALEUA445L-OLYSV39
R-CALEUA445L-HB3LYSV39
R-CALEUA445LHHAPROV41
R-CALEUA445LHHB3PROV41
R-CALEUA445LHHD2PROV41
R-CLEUA445L-CALYSV39
R-CLEUA445L-CLYSV39
R-CLEUA445L-CBLYSV39
R-CLEUA445L-OLYSV39
R-CLEUA445L-HB2LYSV39
R-CLEUA445L-HB3LYSV39
R-CLEUA445LHHD2PROV41
R-OLEUA445L-NLYSV39
R-OLEUA445L-CALYSV39
R-OLEUA445L-CLYSV39
R-OLEUA445L-CBLYSV39
R-OLEUA445L-OLYSV39
R-OLEUA445L-CGLYSV39
R-OLEUA445L-HB2LYSV39
R-OLEUA445L-HB3LYSV39
R-OLEUA445L-HD3LYSV39
R-NALAA446L-CALYSV39
R-NALAA446L-CLYSV39
R-NALAA446L-OLYSV39
R-NALAA446L-HB2LYSV39
R-NALAA446L-HB3LYSV39
R-NALAA446L-HA2GLYV40
R-NALAA446LHNPROV41
R-NALAA446LHCDPROV41
R-NALAA446LHHD2PROV41
R-CAALAA446L-OLYSV39
R-CAALAA446L-HA2GLYV40
R-CAALAA446LHNPROV41
R-CAALAA446LHCGPROV41
R-CAALAA446LHCDPROV41
R-CAALAA446LHHB3PROV41
R-CAALAA446LHHG3PROV41
R-CAALAA446LHHD2PROV41
R-CAALAA446LHHD3PROV41
R-CALAA446L-HB3LYSV38
R-CALAA446L-HD3LYSV38
R-CALAA446L-OLYSV39
R-CALAA446L-HA2GLYV40
R-CALAA446LHCDPROV41
R-CALAA446LHHD2PROV41
R-CALAA446LHHD3PROV41
R-CBALAA446LHHD2PROV41
R-OALAA446L-CALYSV38
R-OALAA446L-CLYSV38
R-OALAA446L-CBLYSV38
R-OALAA446L-OLYSV38
R-OALAA446L-CGLYSV38
R-OALAA446L-CDLYSV38
R-OALAA446L-HALYSV38
R-OALAA446L-HB2LYSV38
R-OALAA446L-HB3LYSV38
R-OALAA446L-HD3LYSV38
R-OALAA446L-CLYSV39
R-OALAA446L-OLYSV39
R-OALAA446L-HA2GLYV40
R-OALAA446LHHD2PROV41
R-NSERA447L-HD3LYSV38
R-NSERA447LHCDPROV41
R-NSERA447LHHG3PROV41
R-NSERA447LHHD2PROV41
R-NSERA447LHHD3PROV41
R-CASERA447L-HD3LYSV38
R-CSERA447L-HD2LYSV38
R-CBSERA447L-CDLYSV38
R-CBSERA447L-CELYSV38
R-CBSERA447L-NZLYSV38
R-CBSERA447L-HD2LYSV38
R-CBSERA447L-HD3LYSV38
R-CBSERA447L-HZ2LYSV38
R-CBSERA447L-HZ3LYSV38
R-OSERA447L-HB3LYSV38
R-OSERA447L-HD2LYSV38
R-OSERA447L-HD3LYSV38
R-OGSERA447L-CBLYSV38
R-OGSERA447L-CGLYSV38
R-OGSERA447L-CDLYSV38
R-OGSERA447L-CELYSV38
R-OGSERA447L-NZLYSV38
R-OGSERA447L-HB3LYSV38
R-OGSERA447L-HG2LYSV38
R-OGSERA447L-HD2LYSV38
R-OGSERA447L-HD3LYSV38
R-OGSERA447L-HE2LYSV38
R-OGSERA447L-HE3LYSV38
R-OGSERA447L-HZ1LYSV38
R-OGSERA447L-HZ2LYSV38
R-OGSERA447L-HZ3LYSV38

 - 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