General Information of Drug-Metabolizing Enzyme (DME ID: DME0042)
DME Name UDP-glucuronosyltransferase 1A9 (UGT1A9), Homo sapiens DME Info
UniProt ID
UD19_HUMAN
EC Number    EC: 2.4.1.17     (Click to Show/Hide the Complete EC Tree)
Transferase
Glycosyltransferases
Hexosyltransferase
EC: 2.4.1.17
Lineage    Species: Homo sapiens     (Click to Show/Hide the Complete Species Lineage)
Kingdom: Metazoa
Phylum: Chordata
Class: Mammalia
Order: Primates
Family: Hominidae
Genus: Homo
Species: Homo sapiens
Interactome
Disease Specific Interactions between Host Protein and DME (HOSPPI)
      ICD Disease Classification Healthy
               ICD-11: Healthy Click to Show/Hide the Full List of HOSPPI:        5 HOSPPI
                     Oligomerization
                            Bilirubin-specific UDPGT 2 (UGT1A4) Health Heterooligomer
Uniprot ID
UD14_HUMAN
Interaction Name UGT1A4-UGT1A9 heterooligomerization [1]
Studied Cell Lines Human embryonic kidney cell line (HEK293)
Affected Substrate(s): Propofol (Metabolic product: Propofol O-glucuronide)
Activity Increasing Vmax
Description Bilirubin-specific UDPGT 2 (UGT1A4) is reported to heterooligomerize with the UGT1A9 protein, which leads to an increased activity of the drug-metabolizing enzyme UDP-glucuronosyltransferase 1A9. As a result, the interaction between UGT1A4 and UGT1A9 can facilitate the drug-metabolizing process of UDP-glucuronosyltransferase 1A9.
                            Phenol-metabolizing UDPGT (UGT1A6) Health Heterooligomer
Uniprot ID
UD16_HUMAN
Interaction Name UGT1A6-UGT1A9 heterooligomerization [1]
Studied Cell Lines Human embryonic kidney cell line (HEK293)
Affected Substrate(s): Propofol (Metabolic product: Propofol O-glucuronide)
Activity Increasing Vmax
Description Phenol-metabolizing UDPGT (UGT1A6) is reported to heterooligomerize with the UGT1A9 protein, which leads to an increased activity of the drug-metabolizing enzyme UDP-glucuronosyltransferase 1A9. As a result, the interaction between UGT1A6 and UGT1A9 can facilitate the drug-metabolizing process of UDP-glucuronosyltransferase 1A9.
                            UDPGT 1-1 (UGT1A1) Health Heterooligomer
Uniprot ID
UD11_HUMAN
Interaction Name UGT1A1-UGT1A9 heterooligomerization [1]
Studied Cell Lines Human embryonic kidney cell line (HEK293)
Affected Substrate(s): Propofol (Metabolic product: Propofol O-glucuronide)
Activity Increasing Km and decreasing the Vmax
Description UDPGT 1-1 (UGT1A1) is reported to heterooligomerize with the UGT1A9 protein, which leads to an increased activity of the drug-metabolizing enzyme UDP-glucuronosyltransferase 1A9. As a result, the interaction between UGT1A1 and UGT1A9 can facilitate the drug-metabolizing process of UDP-glucuronosyltransferase 1A9.
                     Transcription-factor regulation
                            PPA receptor alpha (PPARA) Health Activation
Uniprot ID
PPARA_HUMAN
Interaction Name PPARA-UGT1A9 interaction [2]
Studied Cell Lines Peripheral blood mononuclear cell line
Ensembl ID
ENSG00000186951
Description PPA receptor alpha (PPARA) is reported to activate the transcription of UGT1A9 gene, which leads to an increased expression of the drug-metabolizing enzyme UDP-glucuronosyltransferase 1A9. As a result, the interaction between PPARA and UGT1A9 can activate the drug-metabolizing process of UDP-glucuronosyltransferase 1A9.
                            PPA receptor gamma (PPARG) Health Activation
Uniprot ID
PPARG_HUMAN
Interaction Name PPARG-UGT1A9 interaction [2]
Studied Cell Lines Peripheral blood mononuclear cell line
Ensembl ID
ENSG00000132170
Description PPA receptor gamma (PPARG) is reported to activate the transcription of UGT1A9 gene, which leads to an increased expression of the drug-metabolizing enzyme UDP-glucuronosyltransferase 1A9. As a result, the interaction between PPARG and UGT1A9 can activate the drug-metabolizing process of UDP-glucuronosyltransferase 1A9.
      ICD Disease Classification 02 Neoplasms
               ICD-11: 2B90 Colorectal cancer Click to Show/Hide the Full List of HOSPPI:        1 HOSPPI
                     Transcription-factor regulation
                            Hepatocyte NF 1-alpha (HNF1A) Colorectal cancer Activation
Uniprot ID
HNF1A_HUMAN
Interaction Name HNF1A-UGT1A9 interaction [3]
Studied Cell Lines Caco-2 cell line
Ensembl ID
ENSG00000135100
Description Hepatocyte NF 1-alpha (HNF1A) is reported to activate the transcription of UGT1A9 gene, which leads to an increased expression of the drug-metabolizing enzyme UDP-glucuronosyltransferase 1A9. As a result, the interaction between HNF1A and UGT1A9 can activate the drug-metabolizing process of UDP-glucuronosyltransferase 1A9.
References
1 Effects of coexpression of UGT1A9 on enzymatic activities of human UGT1A isoforms. Drug Metab Dispos. 2007 May;35(5):747-57.
2 The UDP-glucuronosyltransferase 1A9 enzyme is a peroxisome proliferator-activated receptor alpha and gamma target gene. J Biol Chem. 2003 Apr 18;278(16):13975-83.
3 Coordinate regulation of the human UDP-glucuronosyltransferase 1A8, 1A9, and 1A10 genes by hepatocyte nuclear factor 1alpha and the caudal-related homeodomain protein 2. Mol Pharmacol. 2004 Apr;65(4):953-63.

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