DUFMech

All families / PF13863

PF13863: DUF4200

Domain of unknown function (DUF4200)

Curation status
SEEDED
Seed status
UNKNOWN CANDIDATE
Characterization
UNSCORED

Grounding

PF13863: Domain of unknown function (DUF4200)
IPR025252: integrated entry for Domain of unknown function (DUF4200)

Source description

This family is found in eukaryotes. It is a coiled-coil domain of unknwon function.

Evidence and references

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

8 verified sequence examples. FASTA

UniProtProtein / organismSequenceProvenance
A6NFT4Cilia- and flagella-associated protein 73
Homo sapiens
308 aa; version 3
UniProt 2026_03
PTM REGISTRY MIRROR
3 sibling references
J3QPZ5Cilia- and flagella-associated protein 73
Mus musculus
306 aa; version 1
UniProt 2026_03
UNIPROT FETCH
2 sibling references
Q494V2Cilia- and flagella-associated protein 100
Homo sapiens
611 aa; version 1
UniProt 2026_03
UNIPROT FETCH
3 sibling references
Q502W7Coiled-coil domain-containing protein 38
Homo sapiens
563 aa; version 1
UniProt 2026_03
UNIPROT FETCH
1 sibling references
Q5SV66Coiled-coil domain-containing protein 42
Mus musculus
316 aa; version 2
UniProt 2026_03
UNIPROT FETCH
2 sibling references
Q80VN0Cilia- and flagella-associated protein 100
Mus musculus
613 aa; version 2
UniProt 2026_03
UNIPROT FETCH
2 sibling references
Q8CDN8Coiled-coil domain-containing protein 38
Mus musculus
563 aa; version 1
UniProt 2026_03
UNIPROT FETCH
2 sibling references
Q96M95Coiled-coil domain-containing protein 42
Homo sapiens
316 aa; version 2
UniProt 2026_03
UNIPROT FETCH
1 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
4,099
matches
4,110
proteomes
1,324
taxa
4,259
structures
5
alphafold models
3,507
domain architectures
60

Classification basis

short name matches duf; name says unknown function; domain of unknown function

No scoring reasons supplied.

Related Mech records

FamilyMechRecordProteinLink basis
DUF4200 (PF13863)ProteinTraitsMechaxonemal doublet microtubuleA6NFT4
Cilia- and flagella-associated protein 73
canonical example family classification
DUF4200 (PF13863)ProteinTraitsMechaxonemal doublet microtubuleJ3QPZ5
Cilia- and flagella-associated protein 73
canonical example family classification
DUF4200 (PF13863)ProteinTraitsMechaxonemal doublet microtubuleQ494V2
Cilia- and flagella-associated protein 100
canonical example family classification
DUF4200 (PF13863)ProteinTraitsMechaxonemal doublet microtubuleQ80VN0
Cilia- and flagella-associated protein 100
canonical example family classification
DUF4200 (PF13863)ProteinTraitsMechDomain of unknown function DUF4200A6NFT4
Cilia- and flagella-associated protein 73
canonical example family classification
DUF4200 (PF13863)ProteinTraitsMechDomain of unknown function DUF4200J3QPZ5
Cilia- and flagella-associated protein 73
canonical example family classification
DUF4200 (PF13863)ProteinTraitsMechDomain of unknown function DUF4200Q494V2
Cilia- and flagella-associated protein 100
canonical example family classification
DUF4200 (PF13863)ProteinTraitsMechDomain of unknown function DUF4200Q502W7
Coiled-coil domain-containing protein 38
canonical example family classification
DUF4200 (PF13863)ProteinTraitsMechDomain of unknown function DUF4200Q5SV66
Coiled-coil domain-containing protein 42
canonical example family classification
DUF4200 (PF13863)ProteinTraitsMechDomain of unknown function DUF4200Q80VN0
Cilia- and flagella-associated protein 100
canonical example family classification
DUF4200 (PF13863)ProteinTraitsMechDomain of unknown function DUF4200Q8CDN8
Coiled-coil domain-containing protein 38
canonical example family classification
DUF4200 (PF13863)ProteinTraitsMechDomain of unknown function DUF4200Q96M95
Coiled-coil domain-containing protein 42
canonical example family classification
DUF4200 (PF13863)ProteinTraitsMechDomain of unknown function DUF4200
trait identifier
DUF4200 (PF13863)ProteinTraitsMechDomain of unknown function (DUF4200)Q494V2
Cilia- and flagella-associated protein 100
canonical example family classification
DUF4200 (PF13863)ProteinTraitsMechDomain of unknown function (DUF4200)Q5SV66
Coiled-coil domain-containing protein 42
canonical example family classification
DUF4200 (PF13863)ProteinTraitsMechDomain of unknown function (DUF4200)Q8CDN8
Coiled-coil domain-containing protein 38
canonical example family classification
DUF4200 (PF13863)ProteinTraitsMechDomain of unknown function (DUF4200)
trait identifier

Curation history and reviews

No retained curation events supplied.

No retained review supplied.

Record source

data/families/PF13863.yaml
Family YAML in this build

Download this family (JSON)

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.