Q94FY7 · TOCC_ARATH
- ProteinTocopherol cyclase, chloroplastic
- GeneVTE1
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids488 (go to sequence)
- Protein existenceEvidence at protein level
- Annotation score5/5
Function
function
Involved in the synthesis of both tocopherols and tocotrienols (vitamin E), which presumably protect photosynthetic complexes from oxidative stress. Catalyzes the conversion of 2-methyl-6-phytyl-1,4-hydroquinone and 2,3-dimethyl-5-phytyl-1,4-hydroquinone (DMPQ) to delta- and gamma-tocopherol respectively. Converts also 2,3-dimethyl-5-geranylgeranyl-1,4-hydroquinone (DMGQ) to gamma-tocotrienol.
Catalytic activity
- delta-tocopherol = 2-methyl-6-phytyl-1,4-benzene-1,4-diol
Pathway
Cofactor biosynthesis; tocopherol biosynthesis.
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | chloroplast | |
Cellular Component | chloroplast envelope | |
Cellular Component | chloroplast inner membrane | |
Cellular Component | chloroplast thylakoid | |
Cellular Component | plasma membrane | |
Cellular Component | plastoglobule | |
Molecular Function | isomerase activity | |
Molecular Function | tocopherol cyclase activity | |
Biological Process | chlorophyll metabolic process | |
Biological Process | fatty acid metabolic process | |
Biological Process | phloem sucrose loading | |
Biological Process | regulation of defense response | |
Biological Process | response to high light intensity | |
Biological Process | response to oxidative stress | |
Biological Process | response to temperature stimulus | |
Biological Process | vitamin E biosynthetic process | |
Biological Process | xanthophyll metabolic process |
Keywords
- Molecular function
Enzyme and pathway databases
Chemistry
Names & Taxonomy
Protein names
- Recommended nameTocopherol cyclase, chloroplastic
- EC number
- Alternative names
Gene names
Organism names
- Strain
- Taxonomic lineageEukaryota > Viridiplantae > Streptophyta > Embryophyta > Tracheophyta > Spermatophyta > Magnoliopsida > eudicotyledons > Gunneridae > Pentapetalae > rosids > malvids > Brassicales > Brassicaceae > Camelineae > Arabidopsis
Accessions
- Primary accessionQ94FY7
- Secondary accessions
Proteomes
Organism-specific databases
Genome annotation databases
Subcellular Location
PTM/Processing
Features
Showing features for transit peptide, chain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Transit peptide | 1-76 | Chloroplast | ||||
Sequence: MEIRSLIVSMNPNLSSFELSRPVSPLTRSLVPFRSTKLVPRSISRVSASISTPNSETDKISVKPVYVPTSPNRELR | ||||||
Chain | PRO_0000022561 | 77-488 | Tocopherol cyclase, chloroplastic | |||
Sequence: TPHSGYHFDGTPRKFFEGWYFRVSIPEKRESFCFMYSVENPAFRQSLSPLEVALYGPRFTGVGAQILGANDKYLCQYEQDSHNFWGDRHELVLGNTFSAVPGAKAPNKEVPPEEFNRRVSEGFQATPFWHQGHICDDGRTDYAETVKSARWEYSTRPVYGWGDVGAKQKSTAGWPAAFPVFEPHWQICMAGGLSTGWIEWGGERFEFRDAPSYSEKNWGGGFPRKWFWVQCNVFEGATGEVALTAGGGLRQLPGLTETYENAALVCVHYDGKMYEFVPWNGVVRWEMSPWGYWYITAENENHVVELEARTNEAGTPLRAPTTEVGLATACRDSCYGELKLQIWERLYDGSKGKVILETKSSMAAVEIGGGPWFGTWKGDTSNTPELLKQALQVPLDLESALGLVPFFKPPGL |
Proteomic databases
PTM databases
Expression
Gene expression databases
Interaction
Protein-protein interaction databases
Structure
Sequence
- Sequence statusComplete
- Sequence processingThe displayed sequence is further processed into a mature form.
- Length488
- Mass (Da)54,721
- Last updated2001-12-01 v1
- Checksum4FA43FB015DF5806
Sequence caution
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
AF302188 EMBL· GenBank· DDBJ | AAK60503.1 EMBL· GenBank· DDBJ | mRNA | ||
AL022537 EMBL· GenBank· DDBJ | CAA18584.1 EMBL· GenBank· DDBJ | Genomic DNA | Sequence problems. | |
AL161582 EMBL· GenBank· DDBJ | CAB79994.1 EMBL· GenBank· DDBJ | Genomic DNA | Sequence problems. | |
CP002687 EMBL· GenBank· DDBJ | AEE86116.1 EMBL· GenBank· DDBJ | Genomic DNA |