PFDN1

Chr 5

prefoldin subunit 1

Also known as: PDF, PFD1

NCBI Gene: 5201ENSG00000113068UniProt: O60925

This gene encodes a member of the prefoldin beta subunit family. The encoded protein is one of six subunits of prefoldin, a molecular chaperone complex that binds and stabilizes newly synthesized polypeptides, thereby allowing them to fold correctly. The complex, consisting of two alpha and four beta subunits, forms a double beta barrel assembly with six protruding coiled-coils. [provided by RefSeq, Jul 2008]

27
ClinVar variants
12
Pathogenic / LP
0.85
pLI score
0
Active trials
Clinical Summary— PFDN1
⚡
Population Constraint (gnomAD)
Moderately constrained gene (pLI 0.85) — some intolerance to loss-of-function variants.
📋
ClinVar Variants
12 Pathogenic / Likely Pathogenic· 13 VUS of 27 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

gnomAD
Moderate LoF intolerance
LoF Constraint?LOEUF (Loss-of-function Observed/Expected Upper bound Fraction) is the upper bound of the 90% CI for LoF OE — the preferred gnomAD v4 metric. Lower = more intolerant to LoF. LOEUF < 0.35 = highly constrained.
0.48LOEUF
pLI 0.847
Z-score 2.30
OE 0.00 (0.00–0.48)
Moderately constrained

More LoF-intolerant than ~75% of genes

Missense Constraint?Missense Z-score: standard deviations fewer missense variants observed vs. expected. Z > 3.09 (p < 0.001) = gene does not tolerate missense variation. OE missense < 0.6 is also considered constrained.
0.78Z-score
OE missense 0.73 (0.57–0.93)
47 obs / 64.7 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?Shaded band = 90% confidence interval. Vertical tick = point estimate. Grey threshold line = gnomAD constraint cutoff for that variant class.
LoF OE?Ratio of observed to expected LoF variants. Upper CI bound (LOEUF) ≤ 0.35 = strong LoF constraint signal.0.00 (0.00–0.48)
0≤0.351.4
Missense OE?Ratio of observed to expected missense variants. OE ≤ 0.6 = fewer missense variants than expected by chance.0.73 (0.57–0.93)
0≤0.61.4
Synonymous OE?Control metric — synonymous variants are largely neutral and expected near OE = 1.0. Significant deviation may indicate annotation issues.1.03
0≤1.21.6
LoF obs/exp: 0 / 6.2Missense obs/exp: 47 / 64.7Syn Z: -0.12

ClinVar Variant Classifications

27 submitted variants in ClinVar

ClinVar

Classification Summary

Pathogenic12
VUS13
Likely Benign2
12
Pathogenic
13
VUS
2
Likely Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
12
0
12
Likely Pathogenic
0
0
0
0
0
VUS
0
9
4
0
13
Likely Benign
0
1
1
0
2
Benign
0
0
0
0
0
Total01017027

LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly

View in ClinVar →

Protein Context — Lollipop Plot

PFDN1 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

OMIM — Genotype-Phenotype Relationships

1 OMIM entry

OMIM
PREFOLDIN 1; PFDN1
MIM #604897 · *
Clinical Literature
Landmark / reviewRecent case evidence
Key Publications
Landmark & review papers · by relevance
PubMed
Top 10 resultsSearch PubMed ↗
Recent Gene-Specific Literature
Gene in title · MEDLINE · newest first
Europe PMC
Top 5 resultsSearch Europe PMC ↗

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →

External Resources

Links to major genomics databases and tools