All families / PF06206
PF06206: CpeT
CpeT/CpcT family (DUF1001)
- Curation status
- SEEDED
- Seed status
- EX DUF
- Characterization
- UNSCORED
Grounding
PF06206: CpeT/CpcT family (DUF1001)
IPR010404: integrated entry for CpeT/CpcT family (DUF1001)
Source description
This family consists of proteins of proteins belonging to the CpeT/CpcT family. These proteins are around 200 amino acids in length. The proteins contain a conserved motif PYR in the amino terminal half of the protein that may be functionally important. The species distribution of the family is interesting. So far it is restricted to cyanobacteria, cryptomonads and plants. It has been shown that CpcT encodes a bilin lyase responsible for attachment of phycocyanobilin to the beta subunit of phycocyanin [InterPro reference PUB00056796].
Evidence and references
- InterPro entry and its literature references. PUB identifiers are internal InterPro references, not PubMed identifiers. Unresolved citations link to the originating entry.
- Frozen description source: InterPro/Pfam API
Source descriptions and links are provenance, not independent functional validation.
Evidence counts: not scored.
Curated functional assertions
No curated functional assertions supplied.
Protein sequence examples
3 verified sequence examples. FASTA
| UniProt | Protein / organism | Sequence | Provenance |
|---|---|---|---|
| B1XI94 | Phycocyanobilin lyase CpcT Picosynechococcus sp. (strain ATCC 27264 / PCC 7002 / PR-6) | 199 aa; version 1 UniProt 2026_03 | UNIPROT FETCH1 sibling references |
| Q10UX2 | Chromophore lyase CpcT/CpeT 2 Trichodesmium erythraeum (strain IMS101) | 195 aa; version 1 UniProt 2026_03 | UNIPROT FETCH1 sibling references |
| Q9FI46 | Chromophore lyase CRL, chloroplastic Arabidopsis thaliana | 269 aa; version 1 UniProt 2026_03 | PTM REGISTRY MIRROR10 sibling references
|
Pfam membership is not functional evidence. Whole-protein sequences do not establish domain boundaries. A coverage gap here is not absence from UniProt.
Sequences and metadata: UniProt Consortium, CC BY 4.0.
Domain matches
No residue-level domain match evidence is available in this build. Structure and AlphaFold counters do not supply coordinates or establish function.
Snapshot counters
- proteins
- 1,567
- matches
- 1,617
- proteomes
- 871
- taxa
- 2,426
- structures
- 5
- alphafold models
- 1,101
- domain architectures
- 16
Classification basis
name matches duf; pfam previous unknown name
No scoring reasons supplied.
Related Mech records
| Family | Mech | Record | Protein | Link basis |
|---|---|---|---|---|
| CpeT (PF06206) | ProteinTraitsMech | Lyases | Q9FI46 Chromophore lyase CRL, chloroplastic | canonical example family classification |
| CpeT (PF06206) | ProteinTraitsMech | lyase activity | Q9FI46 Chromophore lyase CRL, chloroplastic | canonical example family classification |
| CpeT (PF06206) | ProteinTraitsMech | chloroplast fission | Q9FI46 Chromophore lyase CRL, chloroplastic | canonical example family classification |
| CpeT (PF06206) | ProteinTraitsMech | plastid fission | Q9FI46 Chromophore lyase CRL, chloroplastic | canonical example family classification |
| CpeT (PF06206) | ProteinTraitsMech | transport of virus in host, tissue to tissue | Q9FI46 Chromophore lyase CRL, chloroplastic | canonical example family classification |
| CpeT (PF06206) | ProteinTraitsMech | CpcT | Q9FI46 Chromophore lyase CRL, chloroplastic | canonical example family classification |
| CpeT (PF06206) | ProteinTraitsMech | CpeT/CpcT family (DUF1001) | B1XI94 Phycocyanobilin lyase CpcT | canonical example family classification |
| CpeT (PF06206) | ProteinTraitsMech | CpeT/CpcT family (DUF1001) | Q10UX2 Chromophore lyase CpcT/CpeT 2 | canonical example family classification |
| CpeT (PF06206) | ProteinTraitsMech | CpeT/CpcT family (DUF1001) | Q9FI46 Chromophore lyase CRL, chloroplastic | canonical example family classification |
| CpeT (PF06206) | ProteinTraitsMech | CpeT/CpcT family (DUF1001) | trait identifier | |
| CpeT (PF06206) | ProteinTraitsMech | Chromophore lyase CpcT/CpeT superfamily | Q9FI46 Chromophore lyase CRL, chloroplastic | canonical example family classification |
| CpeT (PF06206) | ProteinTraitsMech | CpcT/CpeT domain | Q9FI46 Chromophore lyase CRL, chloroplastic | canonical example family classification |
Curation history and reviews
No retained curation events supplied.
No retained review supplied.
Record source
Status and evidence
- Seed status
- A name-based classification of frozen InterPro/Pfam metadata. UNKNOWN CANDIDATE means the metadata explicitly says the function is unknown. KNOWN HISTORICAL DUF means a DUF name matched without that wording; this heuristic is not proof of a known function and does not establish experimental characterization. EX DUF means Pfam renamed the family away from a DUF/UPF name, as recorded in Pfam's previous identifiers; a rename usually follows published work on some members but is naming history, not proof of function for every member. Some EX DUF families' current names or descriptions still say the function is unknown; their classification basis lists this, and scoring does not treat them as characterized. FALSE POSITIVE TEXT HIT means the naming rules did not match.
- Characterization
- A separate evidence-scoring result. UNSCORED means no score has been calculated; it is not evidence that the family lacks a known function. Missing scores are not negative evidence. PARTIALLY CHARACTERIZED has partial support; KNOWN HISTORICAL DUF can inherit the seed label or reflect a known-function signal. Neither label implies experimental validation.
- Evidence counts
- Source-specific signals, not unique proteins, publications, or confidence scores. Known counts Rhea reactions and experimentally supported GO molecular-function annotations. Partial counts functional/domain assignments. Context counts structural, environmental, orthology, interaction and neighborhood signals; context alone does not assign function. Repeated annotations may not be independent.
- Curation status
- Reported separately from seed classification and characterization. SNAPSHOT ONLY means no curated metadata was supplied for this build. SEEDED denotes a source-derived record, not an expert-reviewed functional claim.
- Missing counts
- Not available means the source did not supply that counter. A zero is a reported count. Not scored means evidence counts are unavailable.