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Aliases for UGT1A9 Gene

Aliases for UGT1A9 Gene

  • UDP Glucuronosyltransferase 1 Family, Polypeptide A9 2 3
  • UDP Glycosyltransferase 1 Family, Polypeptide A9 2 3
  • UDP-Glucuronosyltransferase 1-I 3 4
  • UDP-Glucuronosyltransferase 1A9 3 4
  • EC 4 63
  • UDPGT 1-9 3 4
  • UGT1-09 3 4
  • UGT-1I 3 4
  • UGT1.9 3 4
  • LUGP4 3 4
  • UGT1I 3 4
  • UDP-Glucuronosyltransferase 1 Family Polypeptide A9s 3
  • UGT1A9S 3
  • HLUGP4 3
  • UGT1-9 3
  • UGT1AI 3
  • UGT1*9 4
  • UDPGT 3
  • UGT1 4
  • GNT1 4

External Ids for UGT1A9 Gene

Previous GeneCards Identifiers for UGT1A9 Gene

  • GC02U990251
  • GC02P234822
  • GC02P234885
  • GC02P234369
  • GC02P234370
  • GC02P234200
  • GC02P234210
  • GC02P234220
  • GC02P234245
  • GC02P234580
  • GC02P226380

Summaries for UGT1A9 Gene

Entrez Gene Summary for UGT1A9 Gene

  • This gene encodes a UDP-glucuronosyltransferase, an enzyme of the glucuronidation pathway that transforms small lipophilic molecules, such as steroids, bilirubin, hormones, and drugs, into water-soluble, excretable metabolites. This gene is part of a complex locus that encodes several UDP-glucuronosyltransferases. The locus includes thirteen unique alternate first exons followed by four common exons. Four of the alternate first exons are considered pseudogenes. Each of the remaining nine 5' exons may be spliced to the four common exons, resulting in nine proteins with different N-termini and identical C-termini. Each first exon encodes the substrate binding site, and is regulated by its own promoter. The enzyme encoded by this gene is active on phenols. [provided by RefSeq, Jul 2008]

GeneCards Summary for UGT1A9 Gene

UGT1A9 (UDP Glucuronosyltransferase 1 Family, Polypeptide A9) is a Protein Coding gene. Diseases associated with UGT1A9 include crigler-najjar syndrome, type ii and crigler-najjar syndrome, type i. Among its related pathways are Metabolism and Glucose / Energy Metabolism. GO annotations related to this gene include protein homodimerization activity and enzyme binding. An important paralog of this gene is UGT2B15.

UniProtKB/Swiss-Prot for UGT1A9 Gene

  • UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isoform has specificity for phenols. Isoform 2 lacks transferase activity but acts as a negative regulator of isoform 1.

Gene Wiki entry for UGT1A9 Gene

No data available for Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for UGT1A9 Gene

Genomics for UGT1A9 Gene

Regulatory Elements for UGT1A9 Gene

Genomic Location for UGT1A9 Gene

233,671,853 bp from pter
233,773,305 bp from pter
101,453 bases
Plus strand

Genomic View for UGT1A9 Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for UGT1A9 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for UGT1A9 Gene

Proteins for UGT1A9 Gene

  • Protein details for UGT1A9 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    UDP-glucuronosyltransferase 1-9
    Protein Accession:
    Secondary Accessions:
    • B8K285
    • P36509
    • Q9HAX0

    Protein attributes for UGT1A9 Gene

    530 amino acids
    Molecular mass:
    59941 Da
    Quaternary structure:
    • Isoform 1 interacts with isoform 2/i2 suggesting that oligomerization is involved in negative regulation of transferase activity by isoform 2. Isoform 1 also interacts with respective i2 isoforms of UGT1A1, UGT1A3, UGT1A4, UGT1A6, UGT1A7, UGT1A8 and UGT1A10.
    • The gene is part of the UGT1A complex locus which displays alternative use of promoters, first exons and terminal exons. The locus is defined by 13 first exons, which are alternatively spliced to 3 other common exons and 2 alternative terminal exons 5. From the 27 possible mRNA isoforms, 9 produce functionally active polypeptides (UGT1A1, 1A3, 1A4, 1A5, 1A6, 1A7, 1A8, 1A9 and 1A10) called isoforms 1 (i1). Use of an alternative exon 5 (5b) as terminal exon is leading to 9 additional alternatively spliced products termed isoforms i2 and which lack transferase activity
    • Sequence=AAB19791.2; Type=Frameshift; Positions=59, 82; Evidence={ECO:0000305};

    Alternative splice isoforms for UGT1A9 Gene


neXtProt entry for UGT1A9 Gene

Proteomics data for UGT1A9 Gene at MOPED

Post-translational modifications for UGT1A9 Gene

  • Glycosylation at Asn 71, Asn 292, and Asn 344
  • Modification sites at PhosphoSitePlus

Other Protein References for UGT1A9 Gene

ENSEMBL proteins:
REFSEQ proteins:

Antibody Products

  • Cell Signaling Technology (CST) Antibodies for UGT1A9 (UGT1A9)

Domains & Families for UGT1A9 Gene

Gene Families for UGT1A9 Gene

Protein Domains for UGT1A9 Gene

Graphical View of Domain Structure for InterPro Entry



  • Belongs to the UDP-glycosyltransferase family.
  • Belongs to the UDP-glycosyltransferase family.
genes like me logo Genes that share domains with UGT1A9: view

Function for UGT1A9 Gene

Molecular function for UGT1A9 Gene

UniProtKB/Swiss-Prot CatalyticActivity:
UDP-glucuronate + acceptor = UDP + acceptor beta-D-glucuronoside.
UniProtKB/Swiss-Prot Function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isoform has specificity for phenols. Isoform 2 lacks transferase activity but acts as a negative regulator of isoform 1.

Enzyme Numbers (IUBMB) for UGT1A9 Gene

Gene Ontology (GO) - Molecular Function for UGT1A9 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0001972 retinoic acid binding IDA 20308471
GO:0004857 enzyme inhibitor activity IGI 20610558
GO:0015020 glucuronosyltransferase activity ISS 20610558
GO:0016758 transferase activity, transferring hexosyl groups --
GO:0019899 enzyme binding IPI 20610558
genes like me logo Genes that share ontologies with UGT1A9: view

Phenotypes for UGT1A9 Gene

genes like me logo Genes that share phenotypes with UGT1A9: view

Animal Model Products

No data available for Animal Models , miRNA , Transcription Factor Targets and HOMER Transcription for UGT1A9 Gene

Localization for UGT1A9 Gene

Subcellular locations from UniProtKB/Swiss-Prot for UGT1A9 Gene

Microsome. Endoplasmic reticulum membrane; Single-pass membrane protein.

Subcellular locations from

Jensen Localization Image for UGT1A9 Gene COMPARTMENTS Subcellular localization image for UGT1A9 gene
Compartment Confidence
endoplasmic reticulum 5
extracellular 5
cytosol 2
nucleus 2
lysosome 1
mitochondrion 1
peroxisome 1
plasma membrane 1
vacuole 1

Gene Ontology (GO) - Cellular Components for UGT1A9 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005783 endoplasmic reticulum NAS 20610558
GO:0005789 endoplasmic reticulum membrane TAS --
GO:0016021 integral component of membrane IEA --
GO:0070062 extracellular exosome IDA 23376485
genes like me logo Genes that share ontologies with UGT1A9: view

Pathways & Interactions for UGT1A9 Gene

genes like me logo Genes that share pathways with UGT1A9: view

PCR Array Products

  • Pathway & Disease-focused RT² Profiler PCR Arrays
    • Drug Metabolism: Phase II Enzymes in human,mouse,rat

Interacting Proteins for UGT1A9 Gene

Gene Ontology (GO) - Biological Process for UGT1A9 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0006805 xenobiotic metabolic process IDA 1910331
GO:0008152 metabolic process TAS 1910331
GO:0009813 flavonoid biosynthetic process IBA --
GO:0017144 NOT drug metabolic process IDA 20610558
GO:0032870 cellular response to hormone stimulus IBA --
genes like me logo Genes that share ontologies with UGT1A9: view

No data available for SIGNOR curated interactions for UGT1A9 Gene

Drugs & Compounds for UGT1A9 Gene

(77) Drugs for UGT1A9 Gene - From: HMDB, PharmGKB, NovoSeek, DrugBank, FDA Approved Drugs, and ClinicalTrials

Name Status Disease Links Group Role Mechanism of Action Clinical Trials
Propofol Approved, Investigational Pharma Enzyme, substrate 853
Irinotecan Approved, Investigational Pharma Enzyme, substrate Topoisomerase I inhibitor, TOPO I inhibitor, Topoisomerase 1 Inhibitors 1013
Mycophenolate mofetil Approved, Investigational Pharma Enzyme, substrate IMPDH inhibitor 864
Acetaminophen Approved Pharma Enzyme, substrate 799
Mycophenolic acid Approved Pharma Enzyme, substrate 864

(147) Additional Compounds for UGT1A9 Gene - From: HMDB and NovoSeek

Name Synonyms Role CAS Number PubChem IDs PubMed IDs
SN38 glucuronide
(23S)-23,25-dihdroxy-24-oxovitamine D3 23-(beta-glucuronide)
  • (23S)-23,25-dihdroxy-24-oxovitamine D3 23-(beta-glucuronoside)
  • (23S)-23,25-dihydroxy-24-oxocholecalciferol 23-(beta-glucuronide)
  • (23S)-23,25-dihydroxy-24-oxovitamin D3 23-(beta-glucuronide)
  • (5Z,7E)-(3S,23S)-24-oxo-9,10-seco-5,7,10(19)-cholestatriene-3,23,25-triol 23-D-glucuronide
  • (5Z,7E)-(3S,23S)-24-oxo-9,10-seco-5,7,10(19)-cholestatriene-3,23,25-triol 23-delta-glucuronide
(3a,5b)-24-oxo-24-[(2-sulfoethyl)amino]cholan-3-yl-b-D-Glucopyranosiduronic acid
  • (3a,5b)-24-oxo-24-[(2-sulfoethyl)amino]cholan-3-yl-b-D-Glucopyranosiduronate
  • (3a,5b)-24-oxo-24-[(2-sulfoethyl)amino]cholan-3-yl-beta-delta-Glucopyranosiduronate
  • Taurolithocholic acid 3-glucuronide
(3a,5b,7a)-23-Carboxy-7-hydroxy-24-norcholan-3-yl-b-D-Glucopyranosiduronic acid
  • Chenodeoxycholic acid 3-glucuronide
  • Chenodeoxycholic acid-3-b-D-glucuronide
  • Chenodeoxycholic acid-3-beta-delta-glucuronide
(3a,5b,7a,12a)-24-[(carboxymethyl)amino]-1,12-dihydroxy-24-oxocholan-3-yl-b-D-Glucopyranosiduronic acid
  • Glycocholic acid 3-glucuronide
genes like me logo Genes that share compounds with UGT1A9: view

Transcripts for UGT1A9 Gene

mRNA/cDNA for UGT1A9 Gene

(1) REFSEQ mRNAs :
(271) Selected AceView cDNA sequences:
(1) Ensembl transcripts including schematic representations, and UCSC links where relevant :

Alternative Splicing Database (ASD) splice patterns (SP) for UGT1A9 Gene

No ASD Table

Relevant External Links for UGT1A9 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for UGT1A9 Gene

mRNA expression in normal human tissues for UGT1A9 Gene

mRNA differential expression in normal tissues according to GTEx for UGT1A9 Gene

This gene is overexpressed in Kidney - Cortex (x41.9) and Liver (x10.1).

Protein differential expression in normal tissues from HIPED for UGT1A9 Gene

This gene is overexpressed in Kidney (32.8), Liver (20.6), and Gallbladder (15.1).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, PaxDb, and MOPED for UGT1A9 Gene

mRNA Expression by UniProt/SwissProt for UGT1A9 Gene

Tissue specificity: Liver. Isoform 1 and isoform 2 are expressed in liver, kidney, colon, esophagus and small intestine.
genes like me logo Genes that share expression patterns with UGT1A9: view

Protein tissue co-expression partners for UGT1A9 Gene

Primer Products

  • QuantiTect SYBR Green Assays in human,mouse,rat
  • Pre-validated RT² qPCR Primer Assay in human,mouse,rat
  • QuantiFast Probe-based Assays in human,mouse,rat

In Situ Assay Products

No data available for mRNA expression in embryonic tissues and stem cells from LifeMap Discovery for UGT1A9 Gene

Orthologs for UGT1A9 Gene

This gene was present in the common ancestor of animals.

Orthologs for UGT1A9 Gene

Organism Taxonomy Gene Similarity Type Details
(Mus musculus)
Mammalia Ugt1a9 35
  • 81.11 (n)
  • 80.59 (a)
Ugt1a9 16
Ugt1a10 36
  • 79 (a)
Ugt1a7c 36
  • 79 (a)
Ugt1a8 36
  • 78 (a)
Ugt1a9 36
  • 79 (a)
(Rattus norvegicus)
Mammalia Ugt1a8 35
  • 82.09 (n)
  • 80.39 (a)
(Bos Taurus)
Mammalia -- 36
  • 43 (a)
(Canis familiaris)
Mammalia -- 36
  • 68 (a)
(Pan troglodytes)
Mammalia UGT1A9 36
  • 99 (a)
(Gallus gallus)
Aves -- 36
  • 60 (a)
-- 36
  • 44 (a)
(Anolis carolinensis)
Reptilia -- 36
  • 38 (a)
(Danio rerio)
Actinopterygii ugt1a7 36
  • 50 (a)
ugt1b1 36
  • 46 (a)
ugt1b2 36
  • 45 (a)
ugt1b3 36
  • 45 (a)
ugt1b4 36
  • 46 (a)
ugt1b5 36
  • 45 (a)
fruit fly
(Drosophila melanogaster)
Insecta BEST:GH06505 37
  • 28 (a)
BEST:GH09393 37
  • 29 (a)
CG10168 37
  • 29 (a)
CG10170 37
  • 25 (a)
CG10178 37
  • 27 (a)
CG11289 37
  • 35 (a)
CG15661 37
  • 32 (a)
CG16732 37
  • 24 (a)
CG17323 37
  • 27 (a)
CG5724 37
  • 27 (a)
CG5999 37
  • 26 (a)
CG6475 37
  • 32 (a)
Dot 37
  • 26 (a)
Ugt36Ba 37
  • 29 (a)
Ugt36Bb 37
  • 30 (a)
Ugt37a1 37
  • 27 (a)
Ugt37b1 37
  • 27 (a)
Ugt37c1 37
  • 30 (a)
Ugt86Da 37
  • 33 (a)
Ugt86Dc 37
  • 34 (a)
Ugt86De 37
  • 30 (a)
Ugt86Dh 37
  • 27 (a)
Ugt86Di 37
  • 32 (a)
(Caenorhabditis elegans)
Secernentea AC3.2 37
  • 25 (a)
AC3.7 37
  • 25 (a)
AC3.8 37
  • 21 (a)
C08B6.1 37
  • 25 (a)
C08F11.8 37
  • 26 (a)
C10H11.4 37
  • 25 (a)
C10H11.5 37
  • 26 (a)
C10H11.6 37
  • 24 (a)
C17G1.3 37
  • 26 (a)
C33A12.6 37
  • 25 (a)
C44H9.1 37
  • 25 (a)
C49A9.8 37
  • 24 (a)
F01D4.1 37
  • 23 (a)
F01D4.2 37
  • 22 (a)
F09G2.6 37
  • 24 (a)
F35H8.6 37
  • 29 (a)
F39G3.1 37
  • 29 (a)
F56B3.7 37
  • 25 (a)
K08B4.4 37
  • 24 (a)
M88.1 37
  • 29 (a)
R04B5.9 37
  • 23 (a)
T01G5.2 37
  • 24 (a)
Y37E11AR.5 37
  • 27 (a)
ZC443.5 37
  • 27 (a)
ZC455.3 37
  • 22 (a)
Species with no ortholog for UGT1A9:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • oppossum (Monodelphis domestica)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • platypus (Ornithorhynchus anatinus)
  • rainbow trout (Oncorhynchus mykiss)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • tropical clawed frog (Silurana tropicalis)
  • wheat (Triticum aestivum)

Evolution for UGT1A9 Gene

Gene Tree for UGT1A9 (if available)
Gene Tree for UGT1A9 (if available)

Paralogs for UGT1A9 Gene Pseudogenes for UGT1A9 Gene

genes like me logo Genes that share paralogs with UGT1A9: view

Variants for UGT1A9 Gene

Sequence variations from dbSNP and Humsavar for UGT1A9 Gene

SNP ID Clin Chr 02 pos Sequence Context AA Info Type MAF
VAR_036035 A breast cancer sample
VAR_058587 -

Structural Variations from Database of Genomic Variants (DGV) for UGT1A9 Gene

Variant ID Type Subtype PubMed ID
esv2721664 CNV Deletion 23290073
esv2721666 CNV Deletion 23290073
nsv876016 CNV Gain 21882294
nsv876017 CNV Loss 21882294
esv2721667 CNV Deletion 23290073
nsv3215 CNV Loss 18451855
esv2721668 CNV Deletion 23290073
esv2661542 CNV Deletion 23128226
esv25622 CNV Loss 19812545
nsv498958 CNV Loss 21111241
dgv769e199 CNV Deletion 23128226
nsv433211 CNV Loss 18776910
esv2422005 CNV Deletion 20811451
nsv519815 CNV Loss 19592680
nsv514125 CNV Loss 21397061
esv8142 CNV Loss 19470904
esv2721669 CNV Deletion 23290073
nsv876018 CNV Gain 21882294

Variation tolerance for UGT1A9 Gene

Residual Variation Intolerance Score: 78.62% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 1.25; 25.03% of all genes are more intolerant (likely to be disease-causing)

Relevant External Links for UGT1A9 Gene

HapMap Linkage Disequilibrium report
Human Gene Mutation Database (HGMD)

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for UGT1A9 Gene

Disorders for UGT1A9 Gene

MalaCards: The human disease database

(5) MalaCards diseases for UGT1A9 Gene - From: DISEASES, NovoSeek, and GeneCards

Disorder Aliases PubMed IDs
crigler-najjar syndrome, type ii
  • crigler najjar syndrome, type 2
crigler-najjar syndrome, type i
  • crigler-najjar syndrome
  • kernicterus of newborn nos
gilbert syndrome
  • gilbert's disease
colorectal cancer
  • colorectal cancer, somatic
- elite association

Relevant External Links for UGT1A9

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
Atlas of Genetics and Cytogenetics in Oncology and Haematology:
genes like me logo Genes that share disorders with UGT1A9: view

No data available for UniProtKB/Swiss-Prot and Genatlas for UGT1A9 Gene

Publications for UGT1A9 Gene

  1. Effect of D256N and Y483D on propofol glucuronidation by human uridine 5'-diphosphate glucuronosyltransferase (UGT1A9). (PMID: 18816295) Takahashi H. … Takeuchi Y. (Basic Clin. Pharmacol. Toxicol. 2008) 23 25 26 67
  2. In vitro inhibitory effects of non-steroidal anti-inflammatory drugs on 4-methylumbelliferone glucuronidation in recombinant human UDP-glucuronosyltransferase 1A9--potent inhibition by niflumic acid. (PMID: 16278927) Mano Y. … Kamimura H. (Biopharm Drug Dispos 2006) 23 25 26 67
  3. Interindividual variability in acetaminophen glucuronidation by human liver microsomes: identification of relevant acetaminophen UDP-glucuronosyltransferase isoforms. (PMID: 11714888) Court M.H. … Mackenzie P.I. (J. Pharmacol. Exp. Ther. 2001) 23 25 26 67
  4. Identification of the human liver UDP-glucuronosyltransferase involved in the metabolism of p-ethoxyphenylurea (dulcin). (PMID: 16897040) Uesawa Y. … Burchell B. (Arch. Toxicol. 2007) 23 25 67
  5. Contribution of UDP-glucuronosyltransferases 1A9 and 2B7 to the glucuronidation of indomethacin in the human liver. (PMID: 17245571) Mano Y. … Kamimura H. (Eur. J. Clin. Pharmacol. 2007) 23 25 67

Products for UGT1A9 Gene

Sources for UGT1A9 Gene

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