ID B6IV25_RHOCS Unreviewed; 214 AA.
AC B6IV25;
DT 16-DEC-2008, integrated into UniProtKB/TrEMBL.
DT 16-DEC-2008, sequence version 1.
DT 27-MAR-2024, entry version 80.
DE RecName: Full=Kynurenine formamidase {ECO:0000256|HAMAP-Rule:MF_01969};
DE Short=KFA {ECO:0000256|HAMAP-Rule:MF_01969};
DE Short=KFase {ECO:0000256|HAMAP-Rule:MF_01969};
DE EC=3.5.1.9 {ECO:0000256|HAMAP-Rule:MF_01969};
DE AltName: Full=Arylformamidase {ECO:0000256|HAMAP-Rule:MF_01969};
DE AltName: Full=N-formylkynurenine formamidase {ECO:0000256|HAMAP-Rule:MF_01969};
DE Short=FKF {ECO:0000256|HAMAP-Rule:MF_01969};
GN Name=kynB {ECO:0000256|HAMAP-Rule:MF_01969};
GN OrderedLocusNames=RC1_2776 {ECO:0000313|EMBL:ACJ00149.1};
OS Rhodospirillum centenum (strain ATCC 51521 / SW).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodospirillales;
OC Rhodospirillaceae; Rhodospirillum.
OX NCBI_TaxID=414684 {ECO:0000313|EMBL:ACJ00149.1, ECO:0000313|Proteomes:UP000001591};
RN [1] {ECO:0000313|Proteomes:UP000001591}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 51521 / SW {ECO:0000313|Proteomes:UP000001591};
RA Touchman J.W., Bauer C., Blankenship R.E.;
RT "Genome sequence of Rhodospirillum centenum.";
RL Submitted (MAR-2007) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:ACJ00149.1, ECO:0000313|Proteomes:UP000001591}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 51521 / SW {ECO:0000313|Proteomes:UP000001591};
RX PubMed=20500872; DOI=10.1186/1471-2164-11-325;
RA Lu Y.K., Marden J., Han M., Swingley W.D., Mastrian S.D., Chowdhury S.R.,
RA Hao J., Helmy T., Kim S., Kurdoglu A.A., Matthies H.J., Rollo D.,
RA Stothard P., Blankenship R.E., Bauer C.E., Touchman J.W.;
RT "Metabolic flexibility revealed in the genome of the cyst-forming alpha-1
RT proteobacterium Rhodospirillum centenum.";
RL BMC Genomics 11:325-325(2010).
CC -!- FUNCTION: Catalyzes the hydrolysis of N-formyl-L-kynurenine to L-
CC kynurenine, the second step in the kynurenine pathway of tryptophan
CC degradation. {ECO:0000256|ARBA:ARBA00002204, ECO:0000256|HAMAP-
CC Rule:MF_01969}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + N-formyl-L-kynurenine = formate + H(+) + L-kynurenine;
CC Xref=Rhea:RHEA:13009, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:15740, ChEBI:CHEBI:57959, ChEBI:CHEBI:58629; EC=3.5.1.9;
CC Evidence={ECO:0000256|ARBA:ARBA00000640, ECO:0000256|HAMAP-
CC Rule:MF_01969};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01969};
CC Note=Binds 2 zinc ions per subunit. {ECO:0000256|HAMAP-Rule:MF_01969};
CC -!- PATHWAY: Amino-acid degradation; L-tryptophan degradation via
CC kynurenine pathway; L-kynurenine from L-tryptophan: step 2/2.
CC {ECO:0000256|HAMAP-Rule:MF_01969}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_01969}.
CC -!- SIMILARITY: Belongs to the Cyclase 1 superfamily. KynB family.
CC {ECO:0000256|HAMAP-Rule:MF_01969}.
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DR EMBL; CP000613; ACJ00149.1; -; Genomic_DNA.
DR RefSeq; WP_012567929.1; NC_011420.2.
DR AlphaFoldDB; B6IV25; -.
DR STRING; 414684.RC1_2776; -.
DR KEGG; rce:RC1_2776; -.
DR eggNOG; COG1878; Bacteria.
DR HOGENOM; CLU_030671_3_1_5; -.
DR OrthoDB; 9777007at2; -.
DR UniPathway; UPA00333; UER00454.
DR Proteomes; UP000001591; Chromosome.
DR GO; GO:0004061; F:arylformamidase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0004328; F:formamidase activity; IEA:InterPro.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0019441; P:tryptophan catabolic process to kynurenine; IEA:UniProtKB-UniPathway.
DR Gene3D; 3.50.30.50; Putative cyclase; 1.
DR HAMAP; MF_01969; KynB; 1.
DR InterPro; IPR007325; KFase/CYL.
DR InterPro; IPR037175; KFase_sf.
DR InterPro; IPR017484; Kynurenine_formamidase_bac.
DR NCBIfam; TIGR03035; trp_arylform; 1.
DR PANTHER; PTHR31118; CYCLASE-LIKE PROTEIN 2; 1.
DR PANTHER; PTHR31118:SF32; KYNURENINE FORMAMIDASE; 1.
DR Pfam; PF04199; Cyclase; 1.
DR SUPFAM; SSF102198; Putative cyclase; 1.
PE 3: Inferred from homology;
KW Hydrolase {ECO:0000256|ARBA:ARBA00022801, ECO:0000256|HAMAP-Rule:MF_01969};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_01969}; Reference proteome {ECO:0000313|Proteomes:UP000001591};
KW Tryptophan catabolism {ECO:0000256|ARBA:ARBA00023079, ECO:0000256|HAMAP-
KW Rule:MF_01969};
KW Zinc {ECO:0000256|ARBA:ARBA00022833, ECO:0000256|HAMAP-Rule:MF_01969}.
FT ACT_SITE 60
FT /note="Proton donor/acceptor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01969"
FT BINDING 20
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01969"
FT BINDING 50
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01969"
FT BINDING 54
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01969"
FT BINDING 56
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01969"
FT BINDING 56
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01969"
FT BINDING 162
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01969"
FT BINDING 174
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01969"
FT BINDING 174
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01969"
SQ SEQUENCE 214 AA; 22879 MW; 7DC8273CBAE60F9F CRC64;
MGKRRIWDIS QPVRTGIPVW PGDTAYAEER TWSIGPGCPV TVSRLTLSSH TGTHADAPLH
YAADGEPAGA LDLTRYLGPA LLLHVRPGLP RVEPAHLDGR VPPGTRRLLL RTMGSFPHAA
WDSRFTALAA ETVDLLAGLG VRLIGVDSPS LDPEDSKTLD AHHAVHRHGL SILEGLVLDG
VPEGAYELIA LPLKLATADA APVRAILRDL PRQG
//
