COQ3 - coenzyme Q3, methyltransferase Gene
Also Known as DHHBMT; bA9819.1; DHHBMTASE; UG0215E05
Species: Homo sapiens
About COQ3
This gene has 3 transcripts (splice variants) and 203 orthologues. Ubiquitous expression in heart (RPKM 8.1), brain (RPKM 3.9) and 25 other tissues.
Summary
Ubiquinone, also known as coenzyme Q, or Q, is a critical component of the electron transport pathways of both eukaryotes and prokaryotes (Jonassen and Clarke, 2000 [PubMed 10777520]). This lipid consists of a hydrophobic isoprenoid tail and a quinone head group. The tail varies in length depending on the organism, but its purpose is to anchor coenzyme Q to the membrane. The quinone head group is responsible for the activity of coenzyme Q in the respiratory chain. The S. cerevisiae COQ3 gene encodes an O-methyltransferase required for 2 steps in the biosynthetic pathway of coenzyme Q. This enzyme methylates an early coenzyme Q intermediate, 3,4-dihydroxy-5-polyprenylbenzoic acid, as well as the final intermediate in the pathway, converting demethyl-ubiquinone to coenzyme Q. The COQ3 gene product is also capable of methylating the distinct prokaryotic early intermediate 2-hydroxy-6-polyprenyl phenol.[supplied by OMIM, Mar 2008]
COQ3 Products (1)
| mRNA | Protein | Name |
|---|---|---|
| NM_017421.4 | NP_059117.3 | ubiquinone biosynthesis O-methyltransferase, mitochondrial |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables 3-demethylubiquinol-n 3-O-methyltransferase activity |
IDA
IDA: Inferred from direct assay
|
10777520 | GOA |
| enables O-methyltransferase activity |
IGI
IGI: Inferred from genetic interaction
|
10777520 | GOA |
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
27499296 | GOA |
| Biological Process GO Annotation | Evidence | References | Source |
|---|---|---|---|
| involved in glycerol metabolic process |
IGI
IGI: Inferred from genetic interaction
|
10777520 | GOA |
| involved in ubiquinone biosynthetic process |
IGI
IGI: Inferred from genetic interaction
|
10777520 | GOA |
| Cellular Component GO Annotation | Evidence | References | Source |
|---|---|---|---|
| located in mitochondrial inner membrane |
IDA
IDA: Inferred from direct assay
|
27499296 | GOA |
| located in mitochondrion |
IDA
IDA: Inferred from direct assay
|
10777520 | GOA |
| part of ubiquinone biosynthesis complex |
IPI
IPI: Inferred from physical interaction
|
27499296 | GOA |
COQ3 Protein Structure
Methyltransf_23: Methyltransferase domain (130 - 303)
- 0
- 100
- 200
- 300
- 369 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
ubiquinone biosynthesis O-methyltransferase, mitochondrial |
|
COQ3 Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | References |
|---|---|---|---|---|---|---|---|
|
Intra
|
COQ3 | Q9NZJ6 | COQ7 | Homo sapiens | Q99807 | 27499296 | |
|
Intra
|
COQ3 | Q9NZJ6 | COQ7 | Homo sapiens | Q99807 | 27499296 | |
|
Intra
|
COQ3 | Q9NZJ6 | NDRG4 | Homo sapiens | Q9ULP0-2 | 32296183 | |
|
Intra
|
COQ3 | Q9NZJ6 | COQ4 | Homo sapiens | Q9Y3A0 | 27499296 | |
|
Intra
|
COQ3 | Q9NZJ6 | COQ5 | Homo sapiens | Q5HYK3 | 27499296 | |
|
Intra
|
COQ3 | Q9NZJ6 | COQ5 | Homo sapiens | Q5HYK3 | 27499296 | |
|
Intra
|
COQ3 | Q9NZJ6 | NFS1 | Homo sapiens | Q9Y697 | 27499296 | |
|
Intra
|
COQ3 | Q9NZJ6 | COQ6 | Homo sapiens | Q9Y2Z9 | 27499296 | |
|
Intra
|
COQ3 | Q9NZJ6 | COQ6 | Homo sapiens | Q9Y2Z9 | 27499296 |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Coenzyme Q10 Deficiency, Primary, 6 |
|
|
| Coenzyme Q10 Deficiency Disease |
|
|
| Cleft Soft Palate |
|
|
| Multiple Acyl-Coa Dehydrogenase Deficiency |
|
|
| Mitochondrial Complex I Deficiency, Nuclear Type 1 |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Rattus norvegicus | COQ3 | RGD | RGD:2380 |
| Canis familiaris | COQ3 | VGNC | VGNC:39518 |
| Felis catus | COQ3 | VGNC | VGNC:61095 |
| Bos taurus | COQ3 | VGNC | VGNC:27612 |
| Mus musculus | COQ3 | MGD | MGI:101813 |
| Macaca mulatta | COQ3 | VGNC | VGNC:104371 |
| Others | COQ3 | NCBI |