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2NOX

Crystal structure of tryptophan 2,3-dioxygenase from Ralstonia metallidurans

Functional Information from GO Data
ChainGOidnamespacecontents
A0004833molecular_functiontryptophan 2,3-dioxygenase activity
A0006569biological_processL-tryptophan catabolic process
A0009435biological_processNAD+ biosynthetic process
A0016491molecular_functionoxidoreductase activity
A0019441biological_processL-tryptophan catabolic process to kynurenine
A0019442biological_processL-tryptophan catabolic process to acetyl-CoA
A0019805biological_processquinolinate biosynthetic process
A0020037molecular_functionheme binding
A0042802molecular_functionidentical protein binding
A0046872molecular_functionmetal ion binding
A0051213molecular_functiondioxygenase activity
A1902494cellular_componentcatalytic complex
B0004833molecular_functiontryptophan 2,3-dioxygenase activity
B0006569biological_processL-tryptophan catabolic process
B0009435biological_processNAD+ biosynthetic process
B0016491molecular_functionoxidoreductase activity
B0019441biological_processL-tryptophan catabolic process to kynurenine
B0019442biological_processL-tryptophan catabolic process to acetyl-CoA
B0019805biological_processquinolinate biosynthetic process
B0020037molecular_functionheme binding
B0042802molecular_functionidentical protein binding
B0046872molecular_functionmetal ion binding
B0051213molecular_functiondioxygenase activity
B1902494cellular_componentcatalytic complex
C0004833molecular_functiontryptophan 2,3-dioxygenase activity
C0006569biological_processL-tryptophan catabolic process
C0009435biological_processNAD+ biosynthetic process
C0016491molecular_functionoxidoreductase activity
C0019441biological_processL-tryptophan catabolic process to kynurenine
C0019442biological_processL-tryptophan catabolic process to acetyl-CoA
C0019805biological_processquinolinate biosynthetic process
C0020037molecular_functionheme binding
C0042802molecular_functionidentical protein binding
C0046872molecular_functionmetal ion binding
C0051213molecular_functiondioxygenase activity
C1902494cellular_componentcatalytic complex
D0004833molecular_functiontryptophan 2,3-dioxygenase activity
D0006569biological_processL-tryptophan catabolic process
D0009435biological_processNAD+ biosynthetic process
D0016491molecular_functionoxidoreductase activity
D0019441biological_processL-tryptophan catabolic process to kynurenine
D0019442biological_processL-tryptophan catabolic process to acetyl-CoA
D0019805biological_processquinolinate biosynthetic process
D0020037molecular_functionheme binding
D0042802molecular_functionidentical protein binding
D0046872molecular_functionmetal ion binding
D0051213molecular_functiondioxygenase activity
D1902494cellular_componentcatalytic complex
E0004833molecular_functiontryptophan 2,3-dioxygenase activity
E0006569biological_processL-tryptophan catabolic process
E0009435biological_processNAD+ biosynthetic process
E0016491molecular_functionoxidoreductase activity
E0019441biological_processL-tryptophan catabolic process to kynurenine
E0019442biological_processL-tryptophan catabolic process to acetyl-CoA
E0019805biological_processquinolinate biosynthetic process
E0020037molecular_functionheme binding
E0042802molecular_functionidentical protein binding
E0046872molecular_functionmetal ion binding
E0051213molecular_functiondioxygenase activity
E1902494cellular_componentcatalytic complex
F0004833molecular_functiontryptophan 2,3-dioxygenase activity
F0006569biological_processL-tryptophan catabolic process
F0009435biological_processNAD+ biosynthetic process
F0016491molecular_functionoxidoreductase activity
F0019441biological_processL-tryptophan catabolic process to kynurenine
F0019442biological_processL-tryptophan catabolic process to acetyl-CoA
F0019805biological_processquinolinate biosynthetic process
F0020037molecular_functionheme binding
F0042802molecular_functionidentical protein binding
F0046872molecular_functionmetal ion binding
F0051213molecular_functiondioxygenase activity
F1902494cellular_componentcatalytic complex
G0004833molecular_functiontryptophan 2,3-dioxygenase activity
G0006569biological_processL-tryptophan catabolic process
G0009435biological_processNAD+ biosynthetic process
G0016491molecular_functionoxidoreductase activity
G0019441biological_processL-tryptophan catabolic process to kynurenine
G0019442biological_processL-tryptophan catabolic process to acetyl-CoA
G0019805biological_processquinolinate biosynthetic process
G0020037molecular_functionheme binding
G0042802molecular_functionidentical protein binding
G0046872molecular_functionmetal ion binding
G0051213molecular_functiondioxygenase activity
G1902494cellular_componentcatalytic complex
H0004833molecular_functiontryptophan 2,3-dioxygenase activity
H0006569biological_processL-tryptophan catabolic process
H0009435biological_processNAD+ biosynthetic process
H0016491molecular_functionoxidoreductase activity
H0019441biological_processL-tryptophan catabolic process to kynurenine
H0019442biological_processL-tryptophan catabolic process to acetyl-CoA
H0019805biological_processquinolinate biosynthetic process
H0020037molecular_functionheme binding
H0042802molecular_functionidentical protein binding
H0046872molecular_functionmetal ion binding
H0051213molecular_functiondioxygenase activity
H1902494cellular_componentcatalytic complex
I0004833molecular_functiontryptophan 2,3-dioxygenase activity
I0006569biological_processL-tryptophan catabolic process
I0009435biological_processNAD+ biosynthetic process
I0016491molecular_functionoxidoreductase activity
I0019441biological_processL-tryptophan catabolic process to kynurenine
I0019442biological_processL-tryptophan catabolic process to acetyl-CoA
I0019805biological_processquinolinate biosynthetic process
I0020037molecular_functionheme binding
I0042802molecular_functionidentical protein binding
I0046872molecular_functionmetal ion binding
I0051213molecular_functiondioxygenase activity
I1902494cellular_componentcatalytic complex
J0004833molecular_functiontryptophan 2,3-dioxygenase activity
J0006569biological_processL-tryptophan catabolic process
J0009435biological_processNAD+ biosynthetic process
J0016491molecular_functionoxidoreductase activity
J0019441biological_processL-tryptophan catabolic process to kynurenine
J0019442biological_processL-tryptophan catabolic process to acetyl-CoA
J0019805biological_processquinolinate biosynthetic process
J0020037molecular_functionheme binding
J0042802molecular_functionidentical protein binding
J0046872molecular_functionmetal ion binding
J0051213molecular_functiondioxygenase activity
J1902494cellular_componentcatalytic complex
K0004833molecular_functiontryptophan 2,3-dioxygenase activity
K0006569biological_processL-tryptophan catabolic process
K0009435biological_processNAD+ biosynthetic process
K0016491molecular_functionoxidoreductase activity
K0019441biological_processL-tryptophan catabolic process to kynurenine
K0019442biological_processL-tryptophan catabolic process to acetyl-CoA
K0019805biological_processquinolinate biosynthetic process
K0020037molecular_functionheme binding
K0042802molecular_functionidentical protein binding
K0046872molecular_functionmetal ion binding
K0051213molecular_functiondioxygenase activity
K1902494cellular_componentcatalytic complex
L0004833molecular_functiontryptophan 2,3-dioxygenase activity
L0006569biological_processL-tryptophan catabolic process
L0009435biological_processNAD+ biosynthetic process
L0016491molecular_functionoxidoreductase activity
L0019441biological_processL-tryptophan catabolic process to kynurenine
L0019442biological_processL-tryptophan catabolic process to acetyl-CoA
L0019805biological_processquinolinate biosynthetic process
L0020037molecular_functionheme binding
L0042802molecular_functionidentical protein binding
L0046872molecular_functionmetal ion binding
L0051213molecular_functiondioxygenase activity
L1902494cellular_componentcatalytic complex
M0004833molecular_functiontryptophan 2,3-dioxygenase activity
M0006569biological_processL-tryptophan catabolic process
M0009435biological_processNAD+ biosynthetic process
M0016491molecular_functionoxidoreductase activity
M0019441biological_processL-tryptophan catabolic process to kynurenine
M0019442biological_processL-tryptophan catabolic process to acetyl-CoA
M0019805biological_processquinolinate biosynthetic process
M0020037molecular_functionheme binding
M0042802molecular_functionidentical protein binding
M0046872molecular_functionmetal ion binding
M0051213molecular_functiondioxygenase activity
M1902494cellular_componentcatalytic complex
N0004833molecular_functiontryptophan 2,3-dioxygenase activity
N0006569biological_processL-tryptophan catabolic process
N0009435biological_processNAD+ biosynthetic process
N0016491molecular_functionoxidoreductase activity
N0019441biological_processL-tryptophan catabolic process to kynurenine
N0019442biological_processL-tryptophan catabolic process to acetyl-CoA
N0019805biological_processquinolinate biosynthetic process
N0020037molecular_functionheme binding
N0042802molecular_functionidentical protein binding
N0046872molecular_functionmetal ion binding
N0051213molecular_functiondioxygenase activity
N1902494cellular_componentcatalytic complex
O0004833molecular_functiontryptophan 2,3-dioxygenase activity
O0006569biological_processL-tryptophan catabolic process
O0009435biological_processNAD+ biosynthetic process
O0016491molecular_functionoxidoreductase activity
O0019441biological_processL-tryptophan catabolic process to kynurenine
O0019442biological_processL-tryptophan catabolic process to acetyl-CoA
O0019805biological_processquinolinate biosynthetic process
O0020037molecular_functionheme binding
O0042802molecular_functionidentical protein binding
O0046872molecular_functionmetal ion binding
O0051213molecular_functiondioxygenase activity
O1902494cellular_componentcatalytic complex
P0004833molecular_functiontryptophan 2,3-dioxygenase activity
P0006569biological_processL-tryptophan catabolic process
P0009435biological_processNAD+ biosynthetic process
P0016491molecular_functionoxidoreductase activity
P0019441biological_processL-tryptophan catabolic process to kynurenine
P0019442biological_processL-tryptophan catabolic process to acetyl-CoA
P0019805biological_processquinolinate biosynthetic process
P0020037molecular_functionheme binding
P0042802molecular_functionidentical protein binding
P0046872molecular_functionmetal ion binding
P0051213molecular_functiondioxygenase activity
P1902494cellular_componentcatalytic complex
Functional Information from PDB Data
site_idAC1
Number of Residues22
DetailsBINDING SITE FOR RESIDUE HEM A 500
ChainResidue
APHE68
ATYR148
AARG149
AHIS257
AVAL261
AGLY270
AGLY272
AGLY273
ATHR274
ATYR279
AHOH502
AGLN71
AHOH513
AHOH614
BTYR43
AHIS72
ATHR75
ATRP119
ALEU122
ATYR130
ASER141
AGLY142

site_idAC2
Number of Residues21
DetailsBINDING SITE FOR RESIDUE HEM B 500
ChainResidue
ATYR43
BPHE68
BGLN71
BHIS72
BTHR75
BTRP119
BLEU122
BSER141
BGLY142
BPHE143
BTYR148
BARG149
BHIS257
BVAL261
BGLU275
BGLY276
BTYR279
BLEU280
BMET283
BHOH502
BHOH589

site_idAC3
Number of Residues19
DetailsBINDING SITE FOR RESIDUE HEM C 500
ChainResidue
CPHE68
CGLN71
CHIS72
CTHR75
CTRP119
CSER141
CGLY142
CPHE143
CTYR148
CARG149
CHIS257
CVAL261
CGLU275
CGLY276
CTYR279
CLEU280
CMET283
CHOH512
DTYR43

site_idAC4
Number of Residues21
DetailsBINDING SITE FOR RESIDUE HEM D 500
ChainResidue
CTYR43
DPHE68
DGLN71
DHIS72
DTHR75
DTRP119
DLEU122
DSER141
DGLY142
DTYR148
DARG149
DHIS257
DVAL261
DGLU275
DGLY276
DTYR279
DLEU280
DMET283
DHOH505
DHOH508
DHOH585

site_idAC5
Number of Residues23
DetailsBINDING SITE FOR RESIDUE HEM E 500
ChainResidue
EMET283
EHOH501
EHOH506
EHOH507
EHOH554
EHOH575
FTYR43
EPHE68
EGLN71
EHIS72
ETHR75
ETRP119
ELEU122
EGLY142
EPHE143
ETYR148
EARG149
EHIS257
EVAL261
EGLU275
EGLY276
ETYR279
ELEU280

site_idAC6
Number of Residues21
DetailsBINDING SITE FOR RESIDUE HEM F 500
ChainResidue
ETYR43
FPHE68
FGLN71
FHIS72
FTHR75
FTRP119
FLEU122
FSER141
FGLY142
FPHE143
FTYR148
FARG149
FHIS257
FVAL261
FGLU275
FGLY276
FTYR279
FLEU280
FMET283
FHOH506
FHOH566

site_idAC7
Number of Residues16
DetailsBINDING SITE FOR RESIDUE HEM G 500
ChainResidue
GPHE68
GHIS72
GTHR75
GSER141
GGLY142
GPHE143
GTYR148
GARG149
GHIS257
GVAL261
GGLY276
GTYR279
GLEU280
GMET283
GHOH537
HTYR43

site_idAC8
Number of Residues21
DetailsBINDING SITE FOR RESIDUE HEM H 500
ChainResidue
GTYR43
HPHE68
HGLN71
HHIS72
HTHR75
HTRP119
HLEU122
HSER141
HGLY142
HTYR148
HARG149
HHIS257
HVAL261
HILE265
HGLU275
HGLY276
HTYR279
HMET283
HHOH504
HHOH505
HHOH586

site_idAC9
Number of Residues20
DetailsBINDING SITE FOR RESIDUE HEM I 500
ChainResidue
IPHE68
IGLN71
IHIS72
ITHR75
ITRP119
ILEU122
ISER141
IGLY142
ITYR148
IARG149
IHIS257
IVAL261
IGLY272
ITHR274
IGLY276
ITYR279
IMET283
IHOH507
IHOH533
JTYR43

site_idBC1
Number of Residues16
DetailsBINDING SITE FOR RESIDUE HEM J 500
ChainResidue
ITYR43
JPHE68
JGLN71
JHIS72
JTHR75
JTRP119
JSER141
JPHE143
JTYR148
JARG149
JHIS257
JVAL261
JGLY276
JTYR279
JMET283
JHOH502

site_idBC2
Number of Residues18
DetailsBINDING SITE FOR RESIDUE HEM K 500
ChainResidue
KPHE68
KGLN71
KHIS72
KTHR75
KTRP119
KSER141
KGLY142
KPHE143
KTYR148
KARG149
KHIS257
KVAL261
KGLY276
KTYR279
KLEU280
KHOH534
KHOH537
LTYR43

site_idBC3
Number of Residues19
DetailsBINDING SITE FOR RESIDUE HEM L 500
ChainResidue
KTYR43
LPHE68
LGLN71
LHIS72
LTRP119
LSER141
LGLY142
LPHE143
LTYR148
LARG149
LHIS257
LVAL261
LGLU275
LGLY276
LTYR279
LLEU280
LMET283
LHOH502
LHOH518

site_idBC4
Number of Residues20
DetailsBINDING SITE FOR RESIDUE HEM M 500
ChainResidue
MPHE68
MGLN71
MHIS72
MTHR75
MTRP119
MLEU122
MTYR130
MSER141
MGLY142
MTYR148
MARG149
MHIS257
MVAL261
MGLU275
MGLY276
MTYR279
MLEU280
MHOH501
MHOH503
NTYR43

site_idBC5
Number of Residues19
DetailsBINDING SITE FOR RESIDUE HEM N 500
ChainResidue
MTYR43
NPHE68
NGLN71
NHIS72
NTHR75
NTRP119
NLEU122
NSER141
NGLY142
NPHE143
NTYR148
NARG149
NHIS257
NVAL261
NGLU275
NGLY276
NTYR279
NLEU280
NMET283

site_idBC6
Number of Residues19
DetailsBINDING SITE FOR RESIDUE HEM O 500
ChainResidue
OPHE68
OGLN71
OHIS72
OTHR75
OTRP119
OSER141
OGLY142
OPHE143
OTYR148
OARG149
OHIS257
OVAL261
OGLY276
OTYR279
OLEU280
OMET283
OHOH522
OHOH537
PTYR43

site_idBC7
Number of Residues23
DetailsBINDING SITE FOR RESIDUE HEM P 500
ChainResidue
OTYR43
PPHE68
PGLN71
PHIS72
PTHR75
PTRP119
PLEU122
PSER141
PGLY142
PPHE143
PTYR148
PARG149
PHIS257
PVAL261
PILE265
PGLU275
PGLY276
PTYR279
PMET283
PHOH502
PHOH515
PHOH565
PHOH588

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues104
DetailsBinding site: {"evidences":[{"source":"HAMAP-Rule","id":"MF_01972","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues16
DetailsBinding site: {"description":"axial binding residue","evidences":[{"source":"HAMAP-Rule","id":"MF_01972","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

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PDB entries from 2025-10-08

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