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Protein

Kynureninase

Gene

Kynu

Organism
Mus musculus (Mouse)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

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. Has a preference for the L-3-hydroxy form. Also has cysteine-conjugate-beta-lyase activity.UniRule annotation

Catalytic activityi

L-kynurenine + H2O = anthranilate + L-alanine.UniRule annotation
L-3-hydroxykynurenine + H2O = 3-hydroxyanthranilate + L-alanine.UniRule annotation

Cofactori

pyridoxal 5'-phosphateUniRule annotation

Pathwayi: L-kynurenine degradation

This protein is involved in step 1 of the subpathway that synthesizes L-alanine and anthranilate from L-kynurenine.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. Kynureninase (Kynu), Kynureninase (Kynu), Kynureninase (Kynu)
This subpathway is part of the pathway L-kynurenine degradation, which is itself part of Amino-acid degradation.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes L-alanine and anthranilate from L-kynurenine, the pathway L-kynurenine degradation and in Amino-acid degradation.

Pathwayi: NAD(+) biosynthesis

This protein is involved in step 2 of the subpathway that synthesizes quinolinate from L-kynurenine.UniRule annotation
Proteins known to be involved in the 3 steps of the subpathway in this organism are:
  1. Kynurenine 3-monooxygenase (Kmo)
  2. Kynureninase (Kynu), Kynureninase (Kynu), Kynureninase (Kynu)
  3. 3-hydroxyanthranilate 3,4-dioxygenase (Haao)
This subpathway is part of the pathway NAD(+) biosynthesis, which is itself part of Cofactor biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes quinolinate from L-kynurenine, the pathway NAD(+) biosynthesis and in Cofactor biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei137Pyridoxal phosphate; via amide nitrogenUniRule annotation1
Binding sitei138Pyridoxal phosphateUniRule annotation1
Binding sitei221Pyridoxal phosphateUniRule annotation1
Binding sitei250Pyridoxal phosphateUniRule annotation1
Binding sitei253Pyridoxal phosphateUniRule annotation1
Binding sitei275Pyridoxal phosphateUniRule annotation1
Binding sitei305Pyridoxal phosphateUniRule annotation1
Binding sitei333Pyridoxal phosphateUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Hydrolase

Keywords - Biological processi

Pyridine nucleotide biosynthesis

Keywords - Ligandi

Pyridoxal phosphate

Enzyme and pathway databases

UniPathwayiUPA00253; UER00329.
UPA00334; UER00455.

Names & Taxonomyi

Protein namesi
Recommended name:
KynureninaseUniRule annotation (EC:3.7.1.3UniRule annotation)
Alternative name(s):
L-kynurenine hydrolaseUniRule annotation
Gene namesi
Name:Kynu
OrganismiMus musculus (Mouse)
Taxonomic identifieri10090 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaSciurognathiMuroideaMuridaeMurinaeMusMus
Proteomesi
  • UP000000589 Componenti: Unplaced

Organism-specific databases

MGIiMGI:1918039. Kynu.

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

  • cytoplasm Source: MGI
  • cytosol Source: MGI
  • mitochondrion Source: MGI
  • nucleoplasm Source: MGI
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002186581 – 464KynureninaseAdd BLAST464

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei1N-acetylmethionineUniRule annotationBy similarity1
Modified residuei276N6-(pyridoxal phosphate)lysineUniRule annotation1

Keywords - PTMi

Acetylation

Proteomic databases

MaxQBiQ9CXF0.
PaxDbiQ9CXF0.
PRIDEiQ9CXF0.

PTM databases

iPTMnetiQ9CXF0.
PhosphoSitePlusiQ9CXF0.
SwissPalmiQ9CXF0.

Expressioni

Gene expression databases

BgeeiENSMUSG00000026866.
CleanExiMM_KYNU.

Interactioni

Subunit structurei

Homodimer.UniRule annotation

GO - Molecular functioni

Protein-protein interaction databases

STRINGi10090.ENSMUSP00000028223.

Structurei

3D structure databases

ProteinModelPortaliQ9CXF0.
SMRiQ9CXF0.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni165 – 168Pyridoxal phosphate bindingUniRule annotation4

Sequence similaritiesi

Belongs to the kynureninase family.UniRule annotation

Phylogenomic databases

eggNOGiKOG3846. Eukaryota.
COG3844. LUCA.
HOVERGENiHBG001170.
InParanoidiQ9CXF0.
KOiK01556.
OMAiGWYGGDK.

Family and domain databases

Gene3Di3.40.640.10. 1 hit.
3.90.1150.10. 1 hit.
HAMAPiMF_01970. Kynureninase. 1 hit.
InterProiIPR000192. Aminotrans_V_dom.
IPR010111. Kynureninase.
IPR015424. PyrdxlP-dep_Trfase.
IPR015421. PyrdxlP-dep_Trfase_major_sub1.
IPR015422. PyrdxlP-dep_Trfase_major_sub2.
[Graphical view]
PANTHERiPTHR14084. PTHR14084. 1 hit.
PfamiPF00266. Aminotran_5. 1 hit.
[Graphical view]
PIRSFiPIRSF038800. KYNU. 1 hit.
SUPFAMiSSF53383. SSF53383. 1 hit.
TIGRFAMsiTIGR01814. kynureninase. 1 hit.

Sequencei

Sequence statusi: Complete.

Q9CXF0-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MEPSPLELPV DAVRRIAAEL NCDPTDERVA LRLDEEDKLS HFRNCFYIPK
60 70 80 90 100
MRDLPSIDLS LVSEDDDAIY FLGNSLGLQP KMVRTYLEEE LDKWAKMGAY
110 120 130 140 150
GHDVGKRPWI VGDESIVSLM KDIVGAHEKE IALMNALTIN LHLLLLSFFK
160 170 180 190 200
PTPKRHKILL EAKAFPSDHY AIESQIQLHG LDVEKSMRMV KPREGEETLR
210 220 230 240 250
MEDILEVIEE EGDSIAVILF SGLHFYTGQL FNIPAITKAG HAKGCFVGFD
260 270 280 290 300
LAHAVGNVEL RLHDWGVDFA CWCSYKYLNS GAGGLAGAFV HEKHAHTVKP
310 320 330 340 350
ALVGWFGHDL STRFNMDNKL QLIPGANGFR ISNPPILLVC SLHASLEVFQ
360 370 380 390 400
QATMTALRRK SILLTGYLEY MLKHYHSKDN TENKGPIVNI ITPSRAEERG
410 420 430 440 450
CQLTLTFSIP KKSVFKELEK RGVVCDKREP DGIRVAPVPL YNSFHDVYKF
460
IRLLTSILDS SERS
Length:464
Mass (Da):52,325
Last modified:December 16, 2008 - v3
Checksum:iFF51BE81F935E79E
GO

Sequence cautioni

The sequence BAB29386 differs from that shown. Reason: Erroneous initiation.Curated
The sequence BAC34035 differs from that shown. Reason: Erroneous initiation.Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AK014484 mRNA. Translation: BAB29386.2. Different initiation.
AK050024 mRNA. Translation: BAC34035.1. Different initiation.
RefSeqiNP_001276522.1. NM_001289593.1.
NP_001276523.1. NM_001289594.1.
NP_081828.1. NM_027552.2.
XP_006498388.1. XM_006498325.3.
UniGeneiMm.105278.

Genome annotation databases

GeneIDi70789.
KEGGimmu:70789.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AK014484 mRNA. Translation: BAB29386.2. Different initiation.
AK050024 mRNA. Translation: BAC34035.1. Different initiation.
RefSeqiNP_001276522.1. NM_001289593.1.
NP_001276523.1. NM_001289594.1.
NP_081828.1. NM_027552.2.
XP_006498388.1. XM_006498325.3.
UniGeneiMm.105278.

3D structure databases

ProteinModelPortaliQ9CXF0.
SMRiQ9CXF0.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi10090.ENSMUSP00000028223.

PTM databases

iPTMnetiQ9CXF0.
PhosphoSitePlusiQ9CXF0.
SwissPalmiQ9CXF0.

Proteomic databases

MaxQBiQ9CXF0.
PaxDbiQ9CXF0.
PRIDEiQ9CXF0.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi70789.
KEGGimmu:70789.

Organism-specific databases

CTDi8942.
MGIiMGI:1918039. Kynu.

Phylogenomic databases

eggNOGiKOG3846. Eukaryota.
COG3844. LUCA.
HOVERGENiHBG001170.
InParanoidiQ9CXF0.
KOiK01556.
OMAiGWYGGDK.

Enzyme and pathway databases

UniPathwayiUPA00253; UER00329.
UPA00334; UER00455.

Miscellaneous databases

ChiTaRSiKynu. mouse.
PROiQ9CXF0.
SOURCEiSearch...

Gene expression databases

BgeeiENSMUSG00000026866.
CleanExiMM_KYNU.

Family and domain databases

Gene3Di3.40.640.10. 1 hit.
3.90.1150.10. 1 hit.
HAMAPiMF_01970. Kynureninase. 1 hit.
InterProiIPR000192. Aminotrans_V_dom.
IPR010111. Kynureninase.
IPR015424. PyrdxlP-dep_Trfase.
IPR015421. PyrdxlP-dep_Trfase_major_sub1.
IPR015422. PyrdxlP-dep_Trfase_major_sub2.
[Graphical view]
PANTHERiPTHR14084. PTHR14084. 1 hit.
PfamiPF00266. Aminotran_5. 1 hit.
[Graphical view]
PIRSFiPIRSF038800. KYNU. 1 hit.
SUPFAMiSSF53383. SSF53383. 1 hit.
TIGRFAMsiTIGR01814. kynureninase. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiKYNU_MOUSE
AccessioniPrimary (citable) accession number: Q9CXF0
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 9, 2004
Last sequence update: December 16, 2008
Last modified: November 2, 2016
This is version 120 of the entry and version 3 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
  2. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  3. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.