DUFMech

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

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

UniProtProtein / organismSequenceProvenance
Q4VAB4Protein canopy homolog 1
Mus musculus
94 aa; version 1
UniProt 2026_03
UNIPROT FETCH
1 sibling references
Q7JXF7Protein seele
Drosophila melanogaster
189 aa; version 1
UniProt 2026_03
UNIPROT FETCH
3 sibling references
Q8BQ47Protein canopy homolog 4
Mus musculus
245 aa; version 1
UniProt 2026_03
UNIPROT FETCH
1 sibling references
Q8N129Protein canopy homolog 4
Homo sapiens
248 aa; version 1
UniProt 2026_03
UNIPROT FETCH
1 sibling references
Q8WU39Marginal zone B- and B1-cell-specific protein
Homo sapiens
189 aa; version 1
UniProt 2026_03
PTM REGISTRY MIRROR
3 sibling references
Q96HD1Protein disulfide isomerase CRELD1
Homo sapiens
420 aa; version 3
UniProt 2026_03
UNIPROT FETCH
1 sibling references
Q9BT09Protein canopy homolog 3
Homo sapiens
278 aa; version 1
UniProt 2026_03
UNIPROT FETCH
1 sibling references
Q9D8I1Marginal zone B- and B1-cell-specific protein
Mus musculus
188 aa; version 2
UniProt 2026_03
UNIPROT FETCH
1 sibling references
Q9DAU1Protein canopy homolog 3
Mus musculus
276 aa; version 1
UniProt 2026_03
UNIPROT FETCH
1 sibling references
Q9QXT0Protein canopy homolog 2
Mus musculus
182 aa; version 1
UniProt 2026_03
UNIPROT FETCH
1 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

FamilyMechRecordProteinLink basis
DUF3456 (PF11938)ProteinTraitsMechmaternal specification of dorsal/ventral axis, oocyte, germ-line encodedQ7JXF7
Protein seele
canonical example family classification
DUF3456 (PF11938)ProteinTraitsMechpolarity specification of dorsal/ventral axisQ7JXF7
Protein seele
canonical example family classification
DUF3456 (PF11938)ProteinTraitsMechregulation of low-density lipoprotein particle clearanceQ9QXT0
Protein canopy homolog 2
canonical example family classification
DUF3456 (PF11938)ProteinTraitsMechregulation of low-density lipoprotein particle clearanceQ9Y2B0
Protein canopy homolog 2
canonical example family classification
DUF3456 (PF11938)ProteinTraitsMechDomain of unknown function DUF3456Q4VAB4
Protein canopy homolog 1
canonical example family classification
DUF3456 (PF11938)ProteinTraitsMechDomain of unknown function DUF3456Q7JXF7
Protein seele
canonical example family classification
DUF3456 (PF11938)ProteinTraitsMechDomain of unknown function DUF3456Q8BQ47
Protein canopy homolog 4
canonical example family classification
DUF3456 (PF11938)ProteinTraitsMechDomain of unknown function DUF3456Q8N129
Protein canopy homolog 4
canonical example family classification
DUF3456 (PF11938)ProteinTraitsMechDomain of unknown function DUF3456Q8WU39
Marginal zone B- and B1-cell-specific protein
canonical example family classification
DUF3456 (PF11938)ProteinTraitsMechDomain of unknown function DUF3456Q9BT09
Protein canopy homolog 3
canonical example family classification
DUF3456 (PF11938)ProteinTraitsMechDomain of unknown function DUF3456Q9D8I1
Marginal zone B- and B1-cell-specific protein
canonical example family classification
DUF3456 (PF11938)ProteinTraitsMechDomain of unknown function DUF3456Q9DAU1
Protein canopy homolog 3
canonical example family classification
DUF3456 (PF11938)ProteinTraitsMechDomain of unknown function DUF3456
trait identifier
DUF3456 (PF11938)ProteinTraitsMechTLR4 regulator and MIR-interacting MSAPQ8WU39
Marginal zone B- and B1-cell-specific protein
canonical example family classification
DUF3456 (PF11938)ProteinTraitsMechTLR4 regulator and MIR-interacting MSAPQ96HD1
Protein disulfide isomerase CRELD1
canonical example family classification
DUF3456 (PF11938)ProteinTraitsMechTLR4 regulator and MIR-interacting MSAPQ9Y2B0
Protein canopy homolog 2
canonical example family classification
DUF3456 (PF11938)ProteinTraitsMechTLR4 regulator and MIR-interacting MSAP
trait identifier

Curation history and reviews

No retained curation events supplied.

No retained review supplied.

Record source

data/families/PF11938.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.