| Phenotype: | brain homovanillic acid decreased amount, abnormal |
|---|---|
| Note: | This statement combines anatomy and/or ontology terms with phenotype quality terms to create a complete phenotype (EQ) statement. For detailed information on individual terms, click the hyperlinked term name. |
| Name: | brain |
|---|---|
| Synonyms: | brain structure |
| Definition: | Cavitated compound organ which is comprised of gray and white matter and surrounds the cerebral ventricular system. |
| Ontology: | Anatomy Ontology [ZFA:0000008] |
| Name: | homovanillic acid |
|---|---|
| Synonyms: | (4-hydroxy-3-methoxyphenyl)acetic acid, 2-(4-hydroxy-3-methoxyphenyl)acetic acid, 3-Methoxy-4-hydroxyphenylacetate, 3-Methoxy-4-hydroxyphenylacetic acid, 4-Hydroxy-3-methoxybenzeneacetic acid, Homovanillic acid, HVA, Vanillacetic acid |
| Definition: | A monocarboxylic acid that is the 3-O-methyl ether of (3,4-dihydroxyphenyl)acetic acid. It is a catecholamine metabolite. |
| Ontology: | ChEBI [CHEBI:545959] ( EBI ) |
| Name: | decreased amount |
|---|---|
| Synonyms: | decreased, decreased number, present in fewer numbers in organism, reduced, subnumerary |
| Definition: | An amount which is relatively low. |
| Ontology: | Phenotypic Quality Ontology [PATO:0001997] |