Q8NH16_Q8NG98.1 contacts (residues)

ReceptorR: Secondary StructureR: ResidueR; ChainR: Residue numberLigandL: Secondary StructureL: ResidueL: ChainL: Residue Number
RHPHEA101L-GLUV22
RHPHEA102L-GLUV22
RHPHEA102LHLEUV23
RHPHEA102LHVALV26
RHPHEA27LHPHEV288
RHTHRA28L-LEUV292
RHLYSA306LHLEUV260
RHILEA307LHLEUV256
RHILEA307LHGLYV257
RHILEA307LHLEUV260
RHPHEA308LHLEUV256
RHPHEA31LHMETV284
RHPHEA31LHLEUV285
RHPHEA31LHPHEV288
RHVALA310LHLEUV256
RHVALA310LHLEUV260
R-LYSA311LHVALV208
R-LYSA311LHVALV211
R-LYSA311LHTYRV252
R-LYSA311LHLEUV256
RHPHEA34LHMETV284
RHLEUA35LHVALV281
RHLEUA35LHMETV284
RHLEUA35LHLEUV285
RHLEUA38LHVALV281
RHILEA39LHLEUV250
RHILEA39LHMETV277
RHLEUA42LHTHRV273
RHLEUA42LHMETV277
RHLEUA46LHVALV258
RHLEUA46LHSERV261
RHLEUA46LHSERV270
RHPHEA49LHTHRV265
RHLEUA50LHGLYV257
RHLEUA50LHLEUV260
RHLEUA50LHSERV261
RHLEUA50LHSERV262
RHLEUA50LHVALV264
RHLEUA50LHTHRV265
RHASNA71LHLEUV23
RHSERA74LHVALV26
RHSERA74LHLEUV30
RHTHRA75LHVALV26
RHPROA78LHLEUV30
RHPROA78LHSERV33
RHVALA81LHVALV37
RHTYRA82LHSERV33
RHTYRA82LHLEUV36
RHLEUA85LHVALV37
R-TYRA86LHLEUV36
R-TYRA86LHVALV37
R-TYRA86LHLEUV40
RHILEA98L-GLUV22
RHILEA98LHPROV25
RHILEA98LHVALV26

 - 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





Q8NH16_Q8NG98.1 contacts (residues & atoms)

ReceptorR: Secondary StructureR: AtomR: ResidueR; ChainR: Residue numberLigandL: Secondary StructureL; AtomL: ResidueL: ChainL: Residue Number
RHCE1PHEA27LHHE1PHEV288
RHCBTHRA28L-HD12LEUV292
RHCG2THRA28L-CD1LEUV292
RHCG2THRA28L-HD11LEUV292
RHCG2THRA28L-HD12LEUV292
RHCG2THRA28L-HD13LEUV292
RHCG2THRA28L-HD23LEUV292
RHOG1THRA28L-HD12LEUV292
RHOG1THRA28L-HD13LEUV292
RHOG1THRA28L-HD23LEUV292
RHCE1PHEA31LHCD2LEUV285
RHCE1PHEA31LHHD21LEUV285
RHCE1PHEA31LHHD22LEUV285
RHCE1PHEA31LHHD23LEUV285
RHCE1PHEA31LHCGPHEV288
RHCE1PHEA31LHCD1PHEV288
RHCE1PHEA31LHCD2PHEV288
RHCE1PHEA31LHCE2PHEV288
RHCE1PHEA31LHCZPHEV288
RHCE1PHEA31LHHB2PHEV288
RHCE1PHEA31LHHD2PHEV288
RHCE1PHEA31LHHE2PHEV288
RHCE2PHEA31LHHE3METV284
RHCZPHEA31LHCEMETV284
RHCZPHEA31LHHE3METV284
RHCZPHEA31LHCD2LEUV285
RHCZPHEA31LHHD21LEUV285
RHCZPHEA31LHHD22LEUV285
RHCZPHEA31LHHD23LEUV285
RHCZPHEA31LHCD2PHEV288
RHCZPHEA31LHCE2PHEV288
RHCZPHEA31LHCZPHEV288
RHCZPHEA31LHHD2PHEV288
RHCZPHEA31LHHE2PHEV288
RHCE1PHEA34LHHE1METV284
RHCBLEUA35LHHD13LEUV285
RHCBLEUA35LHHD23LEUV285
RHCGLEUA35LHCD1LEUV285
RHCGLEUA35LHCD2LEUV285
RHCGLEUA35LHHD12LEUV285
RHCGLEUA35LHHD13LEUV285
RHCGLEUA35LHHD21LEUV285
RHCGLEUA35LHHD22LEUV285
RHCGLEUA35LHHD23LEUV285
RHCD1LEUA35LHCGLEUV285
RHCD1LEUA35LHCD1LEUV285
RHCD1LEUA35LHCD2LEUV285
RHCD1LEUA35LHHD12LEUV285
RHCD1LEUA35LHHD13LEUV285
RHCD1LEUA35LHHD21LEUV285
RHCD1LEUA35LHHD22LEUV285
RHCD1LEUA35LHHD23LEUV285
RHCD2LEUA35LHHG12VALV281
RHCD2LEUA35LHCEMETV284
RHCD2LEUA35LHHE1METV284
RHCD2LEUA35LHHE2METV284
RHCD2LEUA35LHHE3METV284
RHCD2LEUA35LHCGLEUV285
RHCD2LEUA35LHCD1LEUV285
RHCD2LEUA35LHCD2LEUV285
RHCD2LEUA35LHHGLEUV285
RHCD2LEUA35LHHD12LEUV285
RHCD2LEUA35LHHD13LEUV285
RHCD2LEUA35LHHD21LEUV285
RHCD2LEUA35LHHD22LEUV285
RHCD2LEUA35LHHD23LEUV285
RHCD2LEUA38LHHG12VALV281
RHCD2LEUA38LHHG13VALV281
RHCD2LEUA38LHHG22VALV281
RHCD2LEUA38LHHG23VALV281
RHCG1ILEA39LHCEMETV277
RHCG1ILEA39LHHE1METV277
RHCG1ILEA39LHHE2METV277
RHCD1ILEA39LHCD2LEUV250
RHCD1ILEA39LHHD21LEUV250
RHCD1ILEA39LHHD22LEUV250
RHCD1ILEA39LHHD23LEUV250
RHCD1ILEA39LHHE1METV277
RHCBLEUA42LHHG21THRV273
RHCGLEUA42LHCG2THRV273
RHCGLEUA42LHHG21THRV273
RHCGLEUA42LHHG22THRV273
RHCGLEUA42LHHG23THRV273
RHCD1LEUA42LHCBTHRV273
RHCD1LEUA42LHCG2THRV273
RHCD1LEUA42LHOG1THRV273
RHCD1LEUA42LHHBTHRV273
RHCD1LEUA42LHHG21THRV273
RHCD1LEUA42LHHG22THRV273
RHCD1LEUA42LHHG23THRV273
RHCD2LEUA42LHCG2THRV273
RHCD2LEUA42LHHG21THRV273
RHCD2LEUA42LHHG22THRV273
RHCD2LEUA42LHHG23THRV273
RHCD2LEUA42LHCGMETV277
RHCD2LEUA42LHSDMETV277
RHCD2LEUA42LHHG2METV277
RHCD2LEUA42LHHG3METV277
RHCGLEUA46LHHG22VALV258
RHCD1LEUA46LHCG2VALV258
RHCD1LEUA46LHHG22VALV258
RHCD1LEUA46LHHG23VALV258
RHCD2LEUA46LHHG12VALV258
RHCD2LEUA46LHHG22VALV258
RHCD2LEUA46LHHB2SERV261
RHCD2LEUA46LHCASERV270
RHCD2LEUA46LHCBSERV270
RHCD2LEUA46LHHASERV270
RHCD2LEUA46LHHB2SERV270
RHCD2LEUA46LHHB3SERV270
RHCAPHEA49LHCG2THRV265
RHCAPHEA49LHHG21THRV265
RHCAPHEA49LHHG22THRV265
RHCPHEA49LHCG2THRV265
RHCPHEA49LHHG21THRV265
RHCPHEA49LHHG22THRV265
RHCPHEA49LHHG23THRV265
RHCBPHEA49LHCG2THRV265
RHCBPHEA49LHHG21THRV265
RHCBPHEA49LHHG22THRV265
RHOPHEA49LHCBTHRV265
RHOPHEA49LHCG2THRV265
RHOPHEA49LHHBTHRV265
RHOPHEA49LHHG21THRV265
RHOPHEA49LHHG22THRV265
RHOPHEA49LHHG23THRV265
RHCGPHEA49LHHG21THRV265
RHNLEUA50LHCG2THRV265
RHNLEUA50LHHG21THRV265
RHNLEUA50LHHG22THRV265
RHNLEUA50LHHG23THRV265
RHCALEUA50LHCG1VALV264
RHCALEUA50LHHBVALV264
RHCALEUA50LHHG11VALV264
RHCALEUA50LHHG12VALV264
RHCALEUA50LHCG2THRV265
RHCALEUA50LHHG21THRV265
RHCALEUA50LHHG22THRV265
RHCALEUA50LHHG23THRV265
RHCLEUA50LHCG1VALV264
RHCLEUA50LHHG11VALV264
RHCLEUA50LHHG12VALV264
RHCBLEUA50LHOGSERV261
RHCBLEUA50LHHASERV261
RHCBLEUA50LHHB2SERV261
RHCBLEUA50LHHBVALV264
RHCBLEUA50LHHG12VALV264
RHCBLEUA50LHHG21THRV265
RHCBLEUA50LHHG23THRV265
RHOLEUA50LHCG1VALV264
RHOLEUA50LHHG11VALV264
RHOLEUA50LHHG12VALV264
RHOLEUA50LHHG13VALV264
RHCGLEUA50LHCASERV261
RHCGLEUA50LHCSERV261
RHCGLEUA50LHCBSERV261
RHCGLEUA50LHOSERV261
RHCGLEUA50LHOGSERV261
RHCGLEUA50LHHASERV261
RHCGLEUA50LHHB2SERV261
RHCGLEUA50LHHB3SERV261
RHCGLEUA50LHHGSERV261
RHCGLEUA50LHHBVALV264
RHCGLEUA50LHCG2THRV265
RHCGLEUA50LHHG21THRV265
RHCGLEUA50LHHG23THRV265
RHCD1LEUA50LHOGLYV257
RHCD1LEUA50LHNSERV261
RHCD1LEUA50LHCASERV261
RHCD1LEUA50LHCBSERV261
RHCD1LEUA50LHOGSERV261
RHCD1LEUA50LHHSERV261
RHCD1LEUA50LHHASERV261
RHCD1LEUA50LHHB2SERV261
RHCD1LEUA50LHHB3SERV261
RHCD1LEUA50LHHGSERV261
RHCD2LEUA50LHOLEUV260
RHCD2LEUA50LHNSERV261
RHCD2LEUA50LHCASERV261
RHCD2LEUA50LHCSERV261
RHCD2LEUA50LHCBSERV261
RHCD2LEUA50LHOSERV261
RHCD2LEUA50LHOGSERV261
RHCD2LEUA50LHHASERV261
RHCD2LEUA50LHHB2SERV261
RHCD2LEUA50LHHB3SERV261
RHCD2LEUA50LHHGSERV261
RHCD2LEUA50LHNSERV262
RHCD2LEUA50LHCBVALV264
RHCD2LEUA50LHHVALV264
RHCD2LEUA50LHHBVALV264
RHCD2LEUA50LHNTHRV265
RHCD2LEUA50LHCBTHRV265
RHCD2LEUA50LHCG2THRV265
RHCD2LEUA50LHOG1THRV265
RHCD2LEUA50LHHTHRV265
RHCD2LEUA50LHHG1THRV265
RHCD2LEUA50LHHG21THRV265
RHCD2LEUA50LHHG22THRV265
RHCD2LEUA50LHHG23THRV265
RHOD1ASNA71LHCD1LEUV23
RHOD1ASNA71LHHD12LEUV23
RHOD1ASNA71LHHD13LEUV23
RHCASERA74LHHD12LEUV30
RHCASERA74LHHD22LEUV30
RHCSERA74LHHD12LEUV30
RHCBSERA74LHHD12LEUV30
RHCBSERA74LHHD22LEUV30
RHOSERA74LHHG11VALV26
RHOSERA74LHHG12VALV26
RHOSERA74LHCD1LEUV30
RHOSERA74LHHB2LEUV30
RHOSERA74LHHD12LEUV30
RHOSERA74LHHD22LEUV30
RHOGSERA74LHHD22LEUV30
RHOGSERA74LHHD23LEUV30
RHCATHRA75LHCG1VALV26
RHCATHRA75LHHG12VALV26
RHCATHRA75LHHG13VALV26
RHCBTHRA75LHHG12VALV26
RHCBTHRA75LHHG13VALV26
RHCG2THRA75LHHG12VALV26
RHOG1THRA75LHCG1VALV26
RHOG1THRA75LHHG12VALV26
RHOG1THRA75LHHG13VALV26
RHOG1THRA75LHHG23VALV26
RHCBPROA78LHCD1LEUV30
RHCBPROA78LHHALEUV30
RHCBPROA78LHHD11LEUV30
RHCBPROA78LHHD12LEUV30
RHCBPROA78LHOGSERV33
RHCBPROA78LHHGSERV33
RHOPROA78LHHB2SERV33
RHOPROA78LHHB3SERV33
RHCGPROA78LHCD1LEUV30
RHCGPROA78LHHALEUV30
RHCGPROA78LHHD11LEUV30
RHCGPROA78LHHD12LEUV30
RHCGPROA78LHHD13LEUV30
RHCDPROA78LHHD11LEUV30
RHCDPROA78LHHD12LEUV30
RHCG1VALA81LHHG22VALV37
RHCBTYRA82LHHB3SERV33
RHCD2TYRA82LHHASERV33
RHCD2TYRA82LHCD1LEUV36
RHCD2TYRA82LHHD11LEUV36
RHCD2TYRA82LHHD13LEUV36
RHCE2TYRA82LHCD1LEUV36
RHCE2TYRA82LHHD11LEUV36
RHCE2TYRA82LHHD12LEUV36
RHCE2TYRA82LHHD13LEUV36
RHOHTYRA82LHHD13LEUV36
RHCZTYRA82LHHD13LEUV36
RHCD1LEUA85LHCG2VALV37
RHCD1LEUA85LHHG22VALV37
RHCD1LEUA85LHHG23VALV37
R-CD1TYRA86LHCD1LEUV40
R-CD1TYRA86LHHD11LEUV40
R-CD1TYRA86LHHD12LEUV40
R-CD1TYRA86LHHD13LEUV40
R-CE1TYRA86LHHB3LEUV36
R-CE1TYRA86LHHD13LEUV36
R-CE1TYRA86LHCGLEUV40
R-CE1TYRA86LHCD1LEUV40
R-CE1TYRA86LHHD11LEUV40
R-CE1TYRA86LHHD12LEUV40
R-CE1TYRA86LHHD13LEUV40
R-CE2TYRA86LHCBLEUV36
R-CE2TYRA86LHHB2LEUV36
R-CE2TYRA86LHHB3LEUV36
R-CE2TYRA86LHHD13LEUV36
R-CE2TYRA86LHCD1LEUV40
R-CE2TYRA86LHHD11LEUV40
R-CE2TYRA86LHHD12LEUV40
R-OHTYRA86LHCALEUV36
R-OHTYRA86LHCLEUV36
R-OHTYRA86LHCBLEUV36
R-OHTYRA86LHOLEUV36
R-OHTYRA86LHCGLEUV36
R-OHTYRA86LHHALEUV36
R-OHTYRA86LHHB2LEUV36
R-OHTYRA86LHHB3LEUV36
R-OHTYRA86LHHD13LEUV36
R-OHTYRA86LHHD22LEUV36
R-OHTYRA86LHNVALV37
R-OHTYRA86LHHVALV37
R-OHTYRA86LHHAVALV37
R-OHTYRA86LHCBLEUV40
R-OHTYRA86LHCGLEUV40
R-OHTYRA86LHCD1LEUV40
R-OHTYRA86LHHB2LEUV40
R-OHTYRA86LHHGLEUV40
R-OHTYRA86LHHD11LEUV40
R-OHTYRA86LHHD12LEUV40
R-OHTYRA86LHHD13LEUV40
R-CZTYRA86LHCBLEUV36
R-CZTYRA86LHHB2LEUV36
R-CZTYRA86LHHB3LEUV36
R-CZTYRA86LHHD13LEUV36
R-CZTYRA86LHCD1LEUV40
R-CZTYRA86LHHD11LEUV40
R-CZTYRA86LHHD12LEUV40
R-CZTYRA86LHHD13LEUV40
RHCG1ILEA98LHHG3PROV25
RHCG2ILEA98L-OGLUV22
RHCG2ILEA98LHHB2PROV25
RHCG2ILEA98LHCG2VALV26
RHCG2ILEA98LHHG21VALV26
RHCG2ILEA98LHHG22VALV26
RHCG2ILEA98LHHG23VALV26
RHCD1ILEA98LHCBPROV25
RHCD1ILEA98LHCGPROV25
RHCD1ILEA98LHHB2PROV25
RHCD1ILEA98LHHB3PROV25
RHCD1ILEA98LHHG2PROV25
RHCD1ILEA98LHHG3PROV25
RHCGPHEA101L-OE2GLUV22
RHCD1PHEA101L-OE2GLUV22
RHCD1PHEA101L-HB3GLUV22
RHCD2PHEA101L-OE2GLUV22
RHCE1PHEA101L-CDGLUV22
RHCE1PHEA101L-OE2GLUV22
RHCE1PHEA101L-HB3GLUV22
RHCE2PHEA101L-OE2GLUV22
RHCZPHEA101L-CDGLUV22
RHCZPHEA101L-OE2GLUV22
RHCGPHEA102LHHG23VALV26
RHCD1PHEA102LHHD13LEUV23
RHCD2PHEA102LHCG2VALV26
RHCD2PHEA102LHHG21VALV26
RHCD2PHEA102LHHG22VALV26
RHCD2PHEA102LHHG23VALV26
RHCE1PHEA102LHCD1LEUV23
RHCE1PHEA102LHHALEUV23
RHCE1PHEA102LHHB2LEUV23
RHCE1PHEA102LHHD11LEUV23
RHCE1PHEA102LHHD13LEUV23
RHCE2PHEA102L-CGLUV22
RHCE2PHEA102L-OGLUV22
RHCE2PHEA102L-HB3GLUV22
RHCE2PHEA102LHNLEUV23
RHCE2PHEA102LHCALEUV23
RHCE2PHEA102LHHALEUV23
RHCE2PHEA102LHHD11LEUV23
RHCE2PHEA102LHHD13LEUV23
RHCE2PHEA102LHCG2VALV26
RHCE2PHEA102LHHG21VALV26
RHCE2PHEA102LHHG23VALV26
RHCZPHEA102L-CGLUV22
RHCZPHEA102L-OGLUV22
RHCZPHEA102L-HB2GLUV22
RHCZPHEA102L-HB3GLUV22
RHCZPHEA102LHNLEUV23
RHCZPHEA102LHCALEUV23
RHCZPHEA102LHCBLEUV23
RHCZPHEA102LHCD1LEUV23
RHCZPHEA102LHHALEUV23
RHCZPHEA102LHHB2LEUV23
RHCZPHEA102LHHD11LEUV23
RHCZPHEA102LHHD13LEUV23
RHCZPHEA102LHHG23VALV26
RHCALYSA306LHHD12LEUV260
RHCLYSA306LHCD1LEUV260
RHCLYSA306LHHD12LEUV260
RHCLYSA306LHHD13LEUV260
RHCBLYSA306LHHD12LEUV260
RHOLYSA306LHHD12LEUV260
RHOLYSA306LHHD13LEUV260
RHNILEA307LHHD22LEUV256
RHNILEA307LHCD1LEUV260
RHNILEA307LHHD11LEUV260
RHNILEA307LHHD12LEUV260
RHNILEA307LHHD13LEUV260
RHCAILEA307LHCGLEUV256
RHCAILEA307LHCD2LEUV256
RHCAILEA307LHHGLEUV256
RHCAILEA307LHHD21LEUV256
RHCAILEA307LHHD22LEUV256
RHCAILEA307LHCD1LEUV260
RHCAILEA307LHHD11LEUV260
RHCAILEA307LHHD12LEUV260
RHCAILEA307LHHD13LEUV260
RHCILEA307LHCD2LEUV256
RHCILEA307LHHD21LEUV256
RHCILEA307LHHD22LEUV256
RHCILEA307LHHD23LEUV256
RHCBILEA307LHCGLEUV256
RHCBILEA307LHCD2LEUV256
RHCBILEA307LHHGLEUV256
RHCBILEA307LHHD21LEUV256
RHCBILEA307LHHD22LEUV256
RHCBILEA307LHCD1LEUV260
RHCBILEA307LHHD11LEUV260
RHCBILEA307LHHD13LEUV260
RHOILEA307LHCD2LEUV256
RHOILEA307LHHD12LEUV256
RHOILEA307LHHD21LEUV256
RHOILEA307LHHD22LEUV256
RHOILEA307LHHD23LEUV256
RHCG1ILEA307LHCGLEUV256
RHCG1ILEA307LHCD2LEUV256
RHCG1ILEA307LHHGLEUV256
RHCG1ILEA307LHHD21LEUV256
RHCG1ILEA307LHHD22LEUV256
RHCG1ILEA307LHCAGLYV257
RHCG1ILEA307LHHA2GLYV257
RHCG1ILEA307LHCD1LEUV260
RHCG1ILEA307LHHD11LEUV260
RHCG1ILEA307LHHD12LEUV260
RHCG1ILEA307LHHD13LEUV260
RHCG2ILEA307LHCBLEUV256
RHCG2ILEA307LHCGLEUV256
RHCG2ILEA307LHCD2LEUV256
RHCG2ILEA307LHHB3LEUV256
RHCG2ILEA307LHHGLEUV256
RHCG2ILEA307LHHD21LEUV256
RHCG2ILEA307LHHD22LEUV256
RHCG2ILEA307LHHD23LEUV256
RHCD1ILEA307LHHGLEUV256
RHCD1ILEA307LHNGLYV257
RHCD1ILEA307LHCAGLYV257
RHCD1ILEA307LHHGLYV257
RHCD1ILEA307LHHA2GLYV257
RHCD1ILEA307LHHA3GLYV257
RHCD1ILEA307LHHD11LEUV260
RHNPHEA308LHHD22LEUV256
RHCBVALA310LHHD12LEUV256
RHCBVALA310LHHD23LEUV260
RHCG1VALA310LHCD1LEUV256
RHCG1VALA310LHHD12LEUV256
RHCG1VALA310LHHD13LEUV256
RHCG1VALA310LHHD23LEUV260
RHCG2VALA310LHCD2LEUV260
RHCG2VALA310LHHD13LEUV260
RHCG2VALA310LHHD23LEUV260
R-CBLYSA311LHHG12VALV211
R-OLYSA311LHHG12VALV208
R-CGLYSA311LHHG12VALV211
R-CGLYSA311LHHD23LEUV256
R-CDLYSA311LHCG1VALV211
R-CDLYSA311LHHG12VALV211
R-CDLYSA311LHHG13VALV211
R-CDLYSA311LHHG22VALV211
R-CDLYSA311LHHD23LEUV256
R-CELYSA311LHCG1VALV211
R-CELYSA311LHCG2VALV211
R-CELYSA311LHHG12VALV211
R-CELYSA311LHHG13VALV211
R-CELYSA311LHHG22VALV211
R-CELYSA311LHHG23VALV211
R-CELYSA311LHHB3TYRV252
R-CELYSA311LHHD1TYRV252
R-CELYSA311LHCD2LEUV256
R-CELYSA311LHHB2LEUV256
R-CELYSA311LHHD23LEUV256
R-NZLYSA311LHCG1VALV211
R-NZLYSA311LHCG2VALV211
R-NZLYSA311LHHG12VALV211
R-NZLYSA311LHHG13VALV211
R-NZLYSA311LHHG22VALV211
R-NZLYSA311LHHG23VALV211
R-NZLYSA311LHCBTYRV252
R-NZLYSA311LHCGTYRV252
R-NZLYSA311LHCD1TYRV252
R-NZLYSA311LHHB2TYRV252
R-NZLYSA311LHHB3TYRV252
R-NZLYSA311LHHD1TYRV252
R-NZLYSA311LHHD23LEUV256

 - 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