All families / PF11938
PF11938: DUF3456
TLR4 regulator and MIR-interacting MSAP
- Curation status
- SEEDED
- Seed status
- KNOWN HISTORICAL DUF
- Characterization
- UNSCORED
Grounding
PF11938: TLR4 regulator and MIR-interacting MSAP
IPR021852: integrated entry for TLR4 regulator and MIR-interacting MSAP
Source description
This family of proteins, found from plants to humans, is PRAT4 (A and B), a Protein Associated with Toll-like receptor 4. The Toll family of receptors - TLRs - plays an essential role in innate recognition of microbial products, the first line of defence against bacterial infection [InterPro reference PUB00109675]. PRAT4A influences the subcellular distribution and the strength of TLR responses and alters the relative activity of each TLR. PRAT4B regulates TLR4 trafficking to the cell surface and the extent of its expression there [InterPro reference PUB00109676][InterPro reference PUB00109677]. TLR4 recognizes lipopolysaccharide (LPS), one of the most immuno-stimulatory glycolipids constituting the outer membrane of the Gram-negative bacteria. This family has also been described as a SAP-like MIR-interacting protein family.
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
11 verified sequence examples. FASTA
| UniProt | Protein / organism | Sequence | Provenance |
|---|---|---|---|
| Q4VAB4 | Protein canopy homolog 1 Mus musculus | 94 aa; version 1 UniProt 2026_03 | UNIPROT FETCH1 sibling references |
| Q7JXF7 | Protein seele Drosophila melanogaster | 189 aa; version 1 UniProt 2026_03 | UNIPROT FETCH |
| Q8BQ47 | Protein canopy homolog 4 Mus musculus | 245 aa; version 1 UniProt 2026_03 | UNIPROT FETCH1 sibling references |
| Q8N129 | Protein canopy homolog 4 Homo sapiens | 248 aa; version 1 UniProt 2026_03 | UNIPROT FETCH1 sibling references |
| Q8WU39 | Marginal zone B- and B1-cell-specific protein Homo sapiens | 189 aa; version 1 UniProt 2026_03 | PTM REGISTRY MIRROR |
| Q96HD1 | Protein disulfide isomerase CRELD1 Homo sapiens | 420 aa; version 3 UniProt 2026_03 | UNIPROT FETCH1 sibling references |
| Q9BT09 | Protein canopy homolog 3 Homo sapiens | 278 aa; version 1 UniProt 2026_03 | UNIPROT FETCH1 sibling references |
| Q9D8I1 | Marginal zone B- and B1-cell-specific protein Mus musculus | 188 aa; version 2 UniProt 2026_03 | UNIPROT FETCH1 sibling references |
| Q9DAU1 | Protein canopy homolog 3 Mus musculus | 276 aa; version 1 UniProt 2026_03 | UNIPROT FETCH1 sibling references |
| Q9QXT0 | Protein canopy homolog 2 Mus musculus | 182 aa; version 1 UniProt 2026_03 | UNIPROT FETCH1 sibling references |
First 10 shown; the FASTA and family JSON contain all examples.
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
- 6,340
- matches
- 7,021
- proteomes
- 1,740
- taxa
- 5,435
- structures
- 1
- alphafold models
- 5,514
- domain architectures
- 121
Classification basis
short name matches duf
No scoring reasons supplied.
Related Mech records
| Family | Mech | Record | Protein | Link basis |
|---|---|---|---|---|
| DUF3456 (PF11938) | ProteinTraitsMech | maternal specification of dorsal/ventral axis, oocyte, germ-line encoded | Q7JXF7 Protein seele | canonical example family classification |
| DUF3456 (PF11938) | ProteinTraitsMech | polarity specification of dorsal/ventral axis | Q7JXF7 Protein seele | canonical example family classification |
| DUF3456 (PF11938) | ProteinTraitsMech | regulation of low-density lipoprotein particle clearance | Q9QXT0 Protein canopy homolog 2 | canonical example family classification |
| DUF3456 (PF11938) | ProteinTraitsMech | regulation of low-density lipoprotein particle clearance | Q9Y2B0 Protein canopy homolog 2 | canonical example family classification |
| DUF3456 (PF11938) | ProteinTraitsMech | Domain of unknown function DUF3456 | Q4VAB4 Protein canopy homolog 1 | canonical example family classification |
| DUF3456 (PF11938) | ProteinTraitsMech | Domain of unknown function DUF3456 | Q7JXF7 Protein seele | canonical example family classification |
| DUF3456 (PF11938) | ProteinTraitsMech | Domain of unknown function DUF3456 | Q8BQ47 Protein canopy homolog 4 | canonical example family classification |
| DUF3456 (PF11938) | ProteinTraitsMech | Domain of unknown function DUF3456 | Q8N129 Protein canopy homolog 4 | canonical example family classification |
| DUF3456 (PF11938) | ProteinTraitsMech | Domain of unknown function DUF3456 | Q8WU39 Marginal zone B- and B1-cell-specific protein | canonical example family classification |
| DUF3456 (PF11938) | ProteinTraitsMech | Domain of unknown function DUF3456 | Q9BT09 Protein canopy homolog 3 | canonical example family classification |
| DUF3456 (PF11938) | ProteinTraitsMech | Domain of unknown function DUF3456 | Q9D8I1 Marginal zone B- and B1-cell-specific protein | canonical example family classification |
| DUF3456 (PF11938) | ProteinTraitsMech | Domain of unknown function DUF3456 | Q9DAU1 Protein canopy homolog 3 | canonical example family classification |
| DUF3456 (PF11938) | ProteinTraitsMech | Domain of unknown function DUF3456 | trait identifier | |
| DUF3456 (PF11938) | ProteinTraitsMech | TLR4 regulator and MIR-interacting MSAP | Q8WU39 Marginal zone B- and B1-cell-specific protein | canonical example family classification |
| DUF3456 (PF11938) | ProteinTraitsMech | TLR4 regulator and MIR-interacting MSAP | Q96HD1 Protein disulfide isomerase CRELD1 | canonical example family classification |
| DUF3456 (PF11938) | ProteinTraitsMech | TLR4 regulator and MIR-interacting MSAP | Q9Y2B0 Protein canopy homolog 2 | canonical example family classification |
| DUF3456 (PF11938) | ProteinTraitsMech | TLR4 regulator and MIR-interacting MSAP | trait identifier |
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.