The name of this superfamily has been modified since the most recent official CATH+ release (v4_3_0). At the point of the last release, this superfamily was named:

"
Aromatic amino acid hydroxylase
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
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FunFam 3: Phenylalanine-4-hydroxylase

Please note: GO annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

There are 12 GO terms relating to "molecular function"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Phenylalanine 4-monooxygenase activity GO:0004505
Catalysis of the reaction: L-phenylalanine + tetrahydrobiopterin + O2 = L-tyrosine + 4-alpha-hydroxytetrahydrobiopterin.
3 P00439 (/IDA) P00439 (/IDA) P04176 (/IDA)
Phenylalanine 4-monooxygenase activity GO:0004505
Catalysis of the reaction: L-phenylalanine + tetrahydrobiopterin + O2 = L-tyrosine + 4-alpha-hydroxytetrahydrobiopterin.
2 P00439 (/TAS) P00439 (/TAS)
Phenylalanine 4-monooxygenase activity GO:0004505
Catalysis of the reaction: L-phenylalanine + tetrahydrobiopterin + O2 = L-tyrosine + 4-alpha-hydroxytetrahydrobiopterin.
1 P16331 (/IMP)
Phenylalanine 4-monooxygenase activity GO:0004505
Catalysis of the reaction: L-phenylalanine + tetrahydrobiopterin + O2 = L-tyrosine + 4-alpha-hydroxytetrahydrobiopterin.
1 P16331 (/ISO)
Iron ion binding GO:0005506
Interacting selectively and non-covalently with iron (Fe) ions.
1 P04176 (/IDA)
Iron ion binding GO:0005506
Interacting selectively and non-covalently with iron (Fe) ions.
1 P16331 (/ISO)
Amino acid binding GO:0016597
Interacting selectively and non-covalently with an amino acid, organic acids containing one or more amino substituents.
1 P04176 (/IDA)
Amino acid binding GO:0016597
Interacting selectively and non-covalently with an amino acid, organic acids containing one or more amino substituents.
1 P16331 (/ISO)
Protein homodimerization activity GO:0042803
Interacting selectively and non-covalently with an identical protein to form a homodimer.
1 P04176 (/IDA)
Protein homodimerization activity GO:0042803
Interacting selectively and non-covalently with an identical protein to form a homodimer.
1 P16331 (/ISO)
Cofactor binding GO:0048037
Interacting selectively and non-covalently with a cofactor, a substance that is required for the activity of an enzyme or other protein. Cofactors may be inorganic, such as the metal atoms zinc, iron, and copper in certain forms, or organic, in which case they are referred to as coenzymes. Cofactors may either be bound tightly to active sites or bind loosely with the substrate.
1 P04176 (/IDA)
Cofactor binding GO:0048037
Interacting selectively and non-covalently with a cofactor, a substance that is required for the activity of an enzyme or other protein. Cofactors may be inorganic, such as the metal atoms zinc, iron, and copper in certain forms, or organic, in which case they are referred to as coenzymes. Cofactors may either be bound tightly to active sites or bind loosely with the substrate.
1 P16331 (/ISO)

There are 15 GO terms relating to "biological process"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
L-phenylalanine catabolic process GO:0006559
The chemical reactions and pathways resulting in the breakdown of phenylalanine, 2-amino-3-phenylpropanoic acid.
2 P00439 (/TAS) P00439 (/TAS)
Cellular amino acid biosynthetic process GO:0008652
The chemical reactions and pathways resulting in the formation of amino acids, organic acids containing one or more amino substituents.
2 P00439 (/TAS) P00439 (/TAS)
Neurotransmitter biosynthetic process GO:0042136
The chemical reactions and pathways resulting in the formation of any of a group of substances that are released on excitation from the axon terminal of a presynaptic neuron of the central or peripheral nervous system and travel across the synaptic cleft to either excite or inhibit the target cell.
2 P00439 (/NAS) P00439 (/NAS)
Catecholamine biosynthetic process GO:0042423
The chemical reactions and pathways resulting in the formation of any of a group of physiologically important biogenic amines that possess a catechol (3,4-dihydroxyphenyl) nucleus and are derivatives of 3,4-dihydroxyphenylethylamine.
2 P00439 (/NAS) P00439 (/NAS)
Cellular response to estrogen stimulus GO:0071391
Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of stimulus by an estrogen, C18 steroid hormones that can stimulate the development of female sexual characteristics.
2 Q6PHI7 (/IDA) Q7SYH6 (/IDA)
L-phenylalanine metabolic process GO:0006558
The chemical reactions and pathways involving L-phenylalanine, the L-enantiomer of 2-amino-3-phenylpropanoic acid, i.e. (2S)-2-amino-3-phenylpropanoic acid.
1 P04176 (/IDA)
L-phenylalanine metabolic process GO:0006558
The chemical reactions and pathways involving L-phenylalanine, the L-enantiomer of 2-amino-3-phenylpropanoic acid, i.e. (2S)-2-amino-3-phenylpropanoic acid.
1 P16331 (/ISO)
Tyrosine biosynthetic process GO:0006571
The chemical reactions and pathways resulting in the formation of tyrosine, an aromatic amino acid, 2-amino-3-(4-hydroxyphenyl)propanoic acid.
1 P04176 (/IDA)
Tyrosine biosynthetic process GO:0006571
The chemical reactions and pathways resulting in the formation of tyrosine, an aromatic amino acid, 2-amino-3-(4-hydroxyphenyl)propanoic acid.
1 P16331 (/ISO)
Protein hydroxylation GO:0018126
The addition of a hydroxy group to a protein amino acid.
1 P04176 (/IDA)
Protein hydroxylation GO:0018126
The addition of a hydroxy group to a protein amino acid.
1 P16331 (/ISO)
Pteridine-containing compound metabolic process GO:0042558
The chemical reactions and pathways involving any compound containing pteridine (pyrazino(2,3-dipyrimidine)), e.g. pteroic acid, xanthopterin and folic acid.
1 P04176 (/IDA)
Pteridine-containing compound metabolic process GO:0042558
The chemical reactions and pathways involving any compound containing pteridine (pyrazino(2,3-dipyrimidine)), e.g. pteroic acid, xanthopterin and folic acid.
1 P16331 (/ISO)
Tetrahydrobiopterin metabolic process GO:0046146
The chemical reactions and pathways involving tetrahydrobiopterin, the reduced form of biopterin (2-amino-4-hydroxy-6-(1,2-dihydroxypropyl)-pteridine). It functions as a hydroxylation coenzyme, e.g. in the conversion of phenylalanine to tyrosine.
1 P04176 (/IDA)
Tetrahydrobiopterin metabolic process GO:0046146
The chemical reactions and pathways involving tetrahydrobiopterin, the reduced form of biopterin (2-amino-4-hydroxy-6-(1,2-dihydroxypropyl)-pteridine). It functions as a hydroxylation coenzyme, e.g. in the conversion of phenylalanine to tyrosine.
1 P16331 (/ISO)

There are 1 GO terms relating to "cellular component"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
2 P00439 (/TAS) P00439 (/TAS)