Reviewed, UniProtKB/Swiss-Prot Q4UT93 (KYNU_XANC8)

Names and origin

Protein names

Recommended name:
    Kynureninase
    EC=3.7.1.3
Alternative name(s):
    L-kynurenine hydrolase

Gene names

Name:	kynU
Ordered Locus Names:	XC_2681

Organism

Xanthomonas campestris pv. campestris (strain 8004) [Complete proteome] [HAMAP]

Taxonomic identifier

314565 [NCBI]

Taxonomic lineage

Bacteria › Proteobacteria › Gammaproteobacteria › Xanthomonadales › Xanthomonadaceae › Xanthomonas

Protein attributes

Sequence length	424 AA.
Sequence status	Complete.
Sequence processing	The displayed sequence is not processed.
Protein existence	Inferred from homology.

General annotation (Comments)

Function	Catalyzes the cleavage of L-kynurenine (L-Kyn) and L-3-hydroxykynurenine (L-3OHKyn) into anthranilic acid (AA) and 3-hydroxyanthranilic acid (3-OHAA), respectively By similarity.
Catalytic activity	L-kynurenine + H2O = anthranilate + L-alanine. L-3-hydroxykynurenine + H2O = 3-hydroxyanthranilate + L-alanine.
Cofactor	Pyridoxal phosphate By similarity.
Pathway	Amino-acid degradation; L-kynurenine degradation; L-alanine and anthranilate from L-kynurenine: step 1/1. Cofactor biosynthesis; NAD(+) biosynthesis; quinolinate from L-kynurenine: step 2/3.
Subunit structure	Homodimer By similarity.
Sequence similarities	Belongs to the kynureninase family.

Ontologies

Keywords
Biological process	Pyridine nucleotide biosynthesis
Ligand	Pyridoxal phosphate
Molecular function	Hydrolase
Technical term	Complete proteome
Gene Ontology (GO)
Biological process	NAD biosynthetic process Inferred from electronic annotation. Source: InterPro tryptophan catabolic process Inferred from electronic annotation. Source: InterPro
Cellular component	cytoplasm Inferred from electronic annotation. Source: InterPro
Molecular function	kynureninase activity Inferred from electronic annotation. Source: EC pyridoxal phosphate binding Inferred from electronic annotation. Source: InterPro
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 424	424	Kynureninase		PRO_0000357016
Regions
	Region	134 – 137	4	Pyridoxal phosphate binding By similarity
Sites
	Binding site	106	1	Pyridoxal phosphate; via amide nitrogen By similarity
	Binding site	107	1	Pyridoxal phosphate By similarity
	Binding site	219	1	Pyridoxal phosphate By similarity
	Binding site	222	1	Pyridoxal phosphate By similarity
	Binding site	244	1	Pyridoxal phosphate By similarity
	Binding site	274	1	Pyridoxal phosphate By similarity
	Binding site	302	1	Pyridoxal phosphate By similarity
Amino acid modifications
	Modified residue	245	1	N6-(pyridoxal phosphate)lysine By similarity

Sequences

	Sequence		Length	Mass (Da)
	Q4UT93-1 [UniParc]. Last modified July 5, 2005. Version 1. Checksum: AFB4C7D41FC3C5AF	FASTA	424	46,200
	10 20 30 40 50 60 MMTDPLSRSH AAALDAADPL RALRDAFVFP QHGGQDQTYF VGNSLGLQPR QARAMVSEVL 70 80 90 100 110 120 DQWGALAVEG HFTGPTQWLT YHQLVRDGLA RVVGAQPDEV VAMNTLTVNL HLMMASFYRP 130 140 150 160 170 180 SAERAAILIE AGAFPSDRHA VESQLRLHGL DPDTHLIEVE PDAADGTLSM DAIAATIAQH 190 200 210 220 230 240 GPRLALVLWP GIQYRTGQAF ALGEIARLAR AQGAAVGFDL AHAVGNIPLS LHDDGVDFAV 250 260 270 280 290 300 WCHYKYLNAG PGAVGGCFVH ARHAHSNLPR MAGWWGHEQP TRFRMEPQFV PSPGAEGWQL 310 320 330 340 350 360 SNPPVLALAP LRASLELFDQ AGMPALRAKS EQLTGHLEQL IHTRVPQVLQ IVTPADPAQR 370 380 390 400 410 420 GCQLSLRVAG GRTQGRALFE YLQSVGVLGD WREPDVIRIA PVPLYNRFCD LHQLVEHVET WAAA

References

[1]

"Comparative and functional genomic analyses of the pathogenicity of phytopathogen Xanthomonas campestris pv. campestris." Qian W., Jia Y., Ren S.-X., He Y.-Q., Feng J.-X., Lu L.-F., Sun Q., Ying G., Tang D.-J., Tang H., Wu W., Hao P., Wang L., Jiang B.-L., Zeng S., Gu W.-Y., Lu G., Rong L. , Tian Y., Yao Z., Fu G., Chen B., Fang R., Qiang B., Chen Z., Zhao G.-P., Tang J.-L., He C. Genome Res. 15:757-767(2005) [PubMed: 15899963] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].

Cross-references

Sequence databases
EMBLGenBankDDBJ	CP000050 Genomic DNA. Translation: AAY49730.1.
RefSeq	YP_243750.2.
3D structure databases
ModBase	Search...
Protein-protein interaction databases
STRING	Q4UT93.
Genome annotation databases
GeneID	3381215.
GenomeReviews	Gene locus XC_2681 in contig CP000050_GR.
KEGG	xcb:XC_2681.
Organism-specific databases
CMR	Search...
Phylogenomic databases
HOGENOM	Q4UT93.
OMA	WQPLSGW.
Enzyme and pathway databases
BioCyc	XCAM314565:XC_2681-MON.
Family and domain databases
InterPro	IPR000192. Aminotrans_V/Cys_dSase. IPR010111. Kynureninase. IPR015421. PyrdxlP-dep_Trfase_major_sub1. [Graphical view]
Gene3D	G3DSA:3.40.640.10. PyrdxlP-dep_Trfase_major_sub1. 1 hit.
PANTHER	PTHR14084. Kynureninase. 1 hit.
Pfam	PF00266. Aminotran_5. 1 hit. [Graphical view]
TIGRFAMs	TIGR01814. kynureninase. 1 hit.
ProtoNet	Search...

Entry information

Entry name

KYNU_XANC8

Accession

Primary (citable) accession number: Q4UT93

Entry history

Integrated into UniProtKB/Swiss-Prot:	December 16, 2008
Last sequence update:	July 5, 2005
Last modified:	November 3, 2009
This is version 29 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HAMAP (High-quality Automated and Manual Annotation of microbial Proteomes)