Q9FJ81 · CCB2_ARATH
- ProteinProtein COFACTOR ASSEMBLY OF COMPLEX C SUBUNIT B CCB2, chloroplastic
- GeneCCB2
- StatusUniProtKB reviewed (Swiss-Prot)
- Amino acids275 (go to sequence)
- Protein existenceEvidence at protein level
- Annotation score3/5
Function
function
Required for the biogenesis and accumulation of native cytochrome b6 in the thylakoid membrane. Controls the conversion of apocytochrome b6 to holocytochrome b6. Required for covalent binding of the c-type heme to cytochrome b6.
GO annotations
all annotations | all molecular function | nucleotide binding | molecular_function | nucleic acid binding | dna binding | chromatin binding | dna-binding transcription factor activity | rna binding | cytoskeletal motor activity | catalytic activity | nuclease activity | signaling receptor binding | structural molecule activity | transporter activity | binding | protein binding | translation factor activity, rna binding | lipid binding | kinase activity | transferase activity | hydrolase activity | oxygen binding | enzyme regulator activity | carbohydrate binding | signaling receptor activity | translation regulator activity | transcription regulator activity | other molecular function | all biological process | carbohydrate metabolic process | generation of precursor metabolites and energy | nucleobase-containing compound metabolic process | dna metabolic process | translation | lipid metabolic process | transport | response to stress | cell cycle | cell communication | signal transduction | cell-cell signaling | multicellular organism development | circadian rhythm | biological_process | metabolic process | catabolic process | biosynthetic process | response to light stimulus | response to external stimulus | tropism | response to biotic stimulus | response to abiotic stimulus | response to endogenous stimulus | embryo development | post-embryonic development | fruit ripening | abscission | pollination | flower development | cellular process | programmed cell death | photosynthesis | cellular component organization | cell growth | protein metabolic process | cellular homeostasis | secondary metabolic process | reproductive process | cell differentiation | protein modification process | growth | epigenetic regulation of gene expression | response to chemical | anatomical structure development | regulation of molecular function | other biological process | all cellular component | cellular_component | extracellular region | cell wall | intracellular anatomical structure | nucleus | nuclear envelope | nucleoplasm | nucleolus | cytoplasm | mitochondrion | lysosome | endosome | vacuole | peroxisome | endoplasmic reticulum | golgi apparatus | cytosol | ribosome | cytoskeleton | plasma membrane | chloroplast | plastid | thylakoid | membrane | external encapsulating structure | other cellular component | |||
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Aspect | Term | |
---|---|---|
Cellular Component | chloroplast | |
Cellular Component | chloroplast thylakoid membrane | |
Biological Process | cytochrome b6f complex assembly |
Names & Taxonomy
Protein names
- Recommended nameProtein COFACTOR ASSEMBLY OF COMPLEX C SUBUNIT B CCB2, chloroplastic
- 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 accessionQ9FJ81
- Secondary accessions
Proteomes
Organism-specific databases
Genome annotation databases
Subcellular Location
UniProt Annotation
GO Annotation
Plastid, chloroplast thylakoid membrane ; Multi-pass membrane protein
Features
Showing features for topological domain, transmembrane.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Topological domain | 20-65 | Stromal | ||||
Sequence: AQRSTRIFARTENDSPQSKTSDQQLNLSVLRFTFGIPGFDESYLPR | ||||||
Transmembrane | 66-86 | Helical | ||||
Sequence: WIGYGFGSLLLLNHFSASAPI | ||||||
Topological domain | 87-93 | Lumenal | ||||
Sequence: SESQMRS | ||||||
Transmembrane | 94-114 | Helical | ||||
Sequence: EALGLSLAAFSIALPYIGKFL | ||||||
Topological domain | 115-275 | Stromal | ||||
Sequence: KGSVVEQRSLPEEGEQVFVISSNIGDSLKEDLAWATYVLLRNTSTIAVLISVQGELCVRGYWNCPDQMSKAQLHDWFKKKVDEIGLADVKETLYFPQYAGSALSLDILPDGTRSLFVQPLVQNTNEPQKVNGFLLVASTAGYAYSDKDRAWIGAMAEKFRG |
Keywords
- Cellular component
Phenotypes & Variants
Disruption phenotype
High chlorophyll fluorescence phenotype due to an impaired photosynthetic electron flow (PubMed:17971335).
Seedling lethal when grown on soil. On agar plates supplied with sucrose, seedlings grow very slowly with a chlorotic phenotype. Deficiency in the accumulation of the subunits of the cytochrome b6f complex and lack of covalent heme binding to cytochrome b6 (PubMed:17971335, PubMed:18593701).
Seedling lethal when grown on soil. On agar plates supplied with sucrose, seedlings grow very slowly with a chlorotic phenotype. Deficiency in the accumulation of the subunits of the cytochrome b6f complex and lack of covalent heme binding to cytochrome b6 (PubMed:17971335, PubMed:18593701).
Variants
We now provide the "Disease & Variants" viewer in its own tab.
The viewer provides 21 variants from UniProt as well as other sources including ClinVar and dbSNP.
PTM/Processing
Features
Showing features for transit peptide, chain.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Transit peptide | 1-19 | Chloroplast | ||||
Sequence: MSIQICNFPFHPKFALQPR | ||||||
Chain | PRO_0000433263 | 20-275 | Protein COFACTOR ASSEMBLY OF COMPLEX C SUBUNIT B CCB2, chloroplastic | |||
Sequence: AQRSTRIFARTENDSPQSKTSDQQLNLSVLRFTFGIPGFDESYLPRWIGYGFGSLLLLNHFSASAPISESQMRSEALGLSLAAFSIALPYIGKFLKGSVVEQRSLPEEGEQVFVISSNIGDSLKEDLAWATYVLLRNTSTIAVLISVQGELCVRGYWNCPDQMSKAQLHDWFKKKVDEIGLADVKETLYFPQYAGSALSLDILPDGTRSLFVQPLVQNTNEPQKVNGFLLVASTAGYAYSDKDRAWIGAMAEKFRG |
Proteomic 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.
- Length275
- Mass (Da)30,607
- Last updated2001-03-01 v1
- Checksum53BB8AE8C930086B
Sequence caution
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
AB015478 EMBL· GenBank· DDBJ | BAB11059.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
CP002688 EMBL· GenBank· DDBJ | AED96172.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
CP002688 EMBL· GenBank· DDBJ | AED96173.1 EMBL· GenBank· DDBJ | Genomic DNA | ||
BT029468 EMBL· GenBank· DDBJ | ABK59697.1 EMBL· GenBank· DDBJ | mRNA | ||
AK175363 EMBL· GenBank· DDBJ | BAD43126.1 EMBL· GenBank· DDBJ | mRNA | Frameshift | |
AK176564 EMBL· GenBank· DDBJ | BAD44327.1 EMBL· GenBank· DDBJ | mRNA | Frameshift |