DUFMech

All families / PF01680

PF01680: SOR_SNZ

SOR/SNZ family

Curation status
SEEDED
Seed status
EX DUF
Characterization
UNSCORED

Grounding

PF01680: SOR/SNZ family
IPR033755: integrated entry for SOR/SNZ family

Source description

Members of this family are enzymes involved in a new pathway of pyridoxine/pyridoxal 5-phosphate biosynthesis [InterPro reference PUB00002305]. This family was formerly known as UPF0019.

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

10 verified sequence examples. FASTA

UniProtProtein / organismSequenceProvenance
C6KT50Pyridoxal 5'-phosphate synthase subunit Pdx1
Plasmodium falciparum (isolate 3D7)
301 aa; version 1
UniProt 2026_03
PTM REGISTRY MIRROR
14 sibling references
O80446Pyridoxal 5'-phosphate synthase PDX1-like 4
Arabidopsis thaliana
79 aa; version 1
UniProt 2026_03
PTM REGISTRY MIRROR
4 sibling references
O80448Pyridoxal 5'-phosphate synthase subunit PDX1.1
Arabidopsis thaliana
309 aa; version 1
UniProt 2026_03
PTM REGISTRY MIRROR
10 sibling references
P37527Pyridoxal 5'-phosphate synthase subunit PdxS
Bacillus subtilis (strain 168)
294 aa; version 3
UniProt 2026_03
PTM REGISTRY MIRROR
11 sibling references
P43545Probable pyridoxal 5'-phosphate synthase subunit SNZ3
Saccharomyces cerevisiae (strain ATCC 204508 / S288c)
298 aa; version 1
UniProt 2026_03
UNIPROT FETCH
3 sibling references
P53824Probable pyridoxal 5'-phosphate synthase subunit SNZ2
Saccharomyces cerevisiae (strain ATCC 204508 / S288c)
298 aa; version 1
UniProt 2026_03
UNIPROT FETCH
9 sibling references
Q03148Pyridoxal 5'-phosphate synthase subunit SNZ1
Saccharomyces cerevisiae (strain ATCC 204508 / S288c)
297 aa; version 1
UniProt 2026_03
UNIPROT FETCH
8 sibling references
Q58090Pyridoxal 5'-phosphate synthase subunit PdxS
Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440)
330 aa; version 1
UniProt 2026_03
UNIPROT FETCH
10 sibling references
Q8L940Pyridoxal 5'-phosphate synthase subunit PDX1.3
Arabidopsis thaliana
309 aa; version 2
UniProt 2026_03
UNIPROT FETCH
16 sibling references
Q9ZNR6Pyridoxal 5'-phosphate synthase-like subunit PDX1.2
Arabidopsis thaliana
314 aa; version 1
UniProt 2026_03
UNIPROT FETCH
4 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
10,508
matches
10,564
proteomes
8,946
taxa
14,584
structures
41
alphafold models
7,465
domain architectures
61

Classification basis

pfam previous unknown name

No scoring reasons supplied.

Related Mech records

This family joined the worklist after the frozen cross-Mech scan, so other Mechs were not searched for it. Missing links here are not evidence that other Mechs lack it; rows shown come from mentions of a former DUF/UPF name.

No cross-Mech examples are present in the supplied snapshot.

Curation history and reviews

No retained curation events supplied.

No retained review supplied.

Record source

data/families/PF01680.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.