DUFMech

All families / PF26666

PF26666: DUF8221

Domain of unknown function (DUF8221)

Curation status
SEEDED
Seed status
UNKNOWN CANDIDATE
Characterization
UNSCORED

Grounding

PF26666: Domain of unknown function (DUF8221)
IPR059265: integrated entry for Domain of unknown function (DUF8221)

Source description

This entry represents a long alpha helical region found in dynactin-like proteins from eukaryotes. This region may mediate oligomerisation forming a coiled-coil.

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

3 verified sequence examples. FASTA

UniProtProtein / organismSequenceProvenance
O08788Dynactin subunit 1
Mus musculus
1281 aa; version 3
UniProt 2026_03
PTM REGISTRY MIRROR
22 sibling references
P28023Dynactin subunit 1
Rattus norvegicus
1280 aa; version 2
UniProt 2026_03
UNIPROT FETCH
1 sibling references
Q14203Dynactin subunit 1
Homo sapiens
1278 aa; version 3
UniProt 2026_03
UNIPROT FETCH
18 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
4,048
matches
4,049
proteomes
1,798
taxa
4,724
structures
19
alphafold models
2,326
domain architectures
49

Classification basis

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

No scoring reasons supplied.

Related Mech records

FamilyMechRecordProteinLink basis
DUF8221 (PF26666)ProteinTraitsMechcell cortex regionO08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechcell cortex regionQ14203
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechcentriolar subdistal appendageO08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechcentriolar subdistal appendageQ14203
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechcytoplasmic dynein complexO08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechdynein complexQ14203
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechperinuclear thecaO08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechretromer complexO08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechsterol sensor activityO08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechcentriole-centriole cohesionO08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechcentriole-centriole cohesionQ14203
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechlysosome to ER cholesterol transportO08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechlysosome to ER cholesterol transportQ14203
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechmaintenance of synapse structureQ14203
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechmitotic nuclear membrane disassemblyO08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechmitotic nuclear membrane disassemblyQ14203
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechnuclear membrane disassemblyO08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechpositive regulation of microtubule nucleationO08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechpositive regulation of microtubule nucleationQ14203
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechpositive regulation of neuromuscular junction developmentO08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechpositive regulation of neuromuscular junction developmentQ14203
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechventral spinal cord developmentO08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechventral spinal cord developmentQ14203
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechCAP Gly-rich domainO08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechCAP Gly-rich domainQ14203
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechDynactin subunit 1, DUF8221O08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechDynactin subunit 1, DUF8221Q14203
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechDynactin subunit 1, DUF8221
trait identifier
DUF8221 (PF26666)ProteinTraitsMechDynein associated proteinO08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechDynein associated proteinQ14203
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechDomain of unknown function (DUF8221)O08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechDomain of unknown function (DUF8221)P28023
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechDomain of unknown function (DUF8221)Q14203
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechDomain of unknown function (DUF8221)
trait identifier
DUF8221 (PF26666)ProteinTraitsMechDynein associated proteinO08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechDynein associated proteinQ14203
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechCAP Gly-rich domain superfamilyO08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechCAP Gly-rich domain superfamilyQ14203
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechCAP-Gly domain profileO08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechCAP-Gly domain profileQ14203
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechCAP Gly-rich-like domainO08788
Dynactin subunit 1
canonical example family classification
DUF8221 (PF26666)ProteinTraitsMechCAP Gly-rich-like domainQ14203
Dynactin subunit 1
canonical example family classification

Curation history and reviews

No retained curation events supplied.

No retained review supplied.

Record source

data/families/PF26666.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.