YBX1

Chr 1

Y-box binding protein 1

Also known as: BP-8, CBF-A, CSDA2, CSDB, DBPB, EFI-A, MDR-NF1, NSEP-1

Y-box binding protein 1 functions as a DNA- and RNA-binding protein that regulates transcription, translation, mRNA splicing and stability, and DNA repair. Mutations cause autosomal dominant cold-induced sweating syndrome with early childhood onset, characterized by profuse sweating triggered by cold temperatures and ambient temperature changes. This gene is highly constrained against loss-of-function variation (pLI 0.95, LOEUF 0.35), indicating that haploinsufficiency is likely not tolerated in the general population.

ResearchSummary from RefSeq, UniProt
LOFmechanismLOEUF 0.35
Clinical SummaryYBX1
Population Constraint (gnomAD)
Highly constrained gene — heterozygous loss-of-function variants are very rare in the population (pLI 0.95). One damaged copy is likely sufficient to cause disease.
📋
ClinVar Variants
11 unique Pathogenic / Likely Pathogenic· 44 VUS of 73 total submissions
Some data sources returned errors (1)

omim: Error: OMIM fetch failed: 429

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

LoF intolerant — likely haploinsufficient
LoF Constraint
0.35LOEUF
pLI 0.946
Z-score 3.50
OE 0.11 (0.040.35)
Highly constrained

Highly LoF-intolerant (top ~10% of genes)

Missense Constraint
1.71Z-score
OE missense 0.64 (0.550.75)
118 obs / 183.3 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.11 (0.040.35)
00.351.4
Missense OE0.64 (0.550.75)
00.61.4
Synonymous OE0.95
01.21.6
LoF obs/exp: 2 / 18.0Missense obs/exp: 118 / 183.3Syn Z: 0.29
DN
0.3991th %ile
GOF
0.3193th %ile
LOF
0.79top 5%

The highest-scoring mechanism for this gene is loss-of-function (haploinsufficiency).

LOFprediction above median · LOEUF 0.35

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312. Mechanism ranking also informed by gnomAD constraint, ClinVar, and ClinGen data.

ClinVar Variant Classifications

73 submitted variants in ClinVar

Classification Summary

Pathogenic9
Likely Pathogenic2
VUS44
Likely Benign4
Benign1
9
Pathogenic
2
Likely Pathogenic
44
VUS
4
Likely Benign
1
Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
9
0
9
Likely Pathogenic
0
0
2
0
2
VUS
0
41
3
0
44
Likely Benign
0
0
0
4
4
Benign
0
1
0
0
1
Total04214460

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

View in ClinVar →

Protein Context — Lollipop Plot

YBX1 · protein map & ClinVar variants

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

3D Protein StructureAlphaFold

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →
Clinical Literature
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