EBNA1BP2

Chr 1

EBNA1 binding protein 2

Also known as: EBP2, NOBP, P40

The protein is required for processing of 27S pre-rRNA and ribosomal large subunit biogenesis. Mutations cause autosomal recessive intellectual disability with microcephaly, typically presenting in early childhood. The gene shows minimal constraint against loss-of-function variants.

OMIMResearchSummary from RefSeq, UniProt
DNmechanismLOEUF 1.09
Clinical SummaryEBNA1BP2
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
1.09LOEUF
pLI 0.000
Z-score 1.23
OE 0.73 (0.501.09)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
0.27Z-score
OE missense 0.95 (0.841.07)
200 obs / 210.9 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.73 (0.501.09)
00.351.4
Missense OE0.95 (0.841.07)
00.61.4
Synonymous OE0.96
01.21.6
LoF obs/exp: 17 / 23.4Missense obs/exp: 200 / 210.9Syn Z: 0.27
DN
0.78top 25%
GOF
0.4579th %ile
LOF
0.3551th %ile

The highest-scoring mechanism for this gene is dominant-negative.

DNprediction above median

Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

EBNA1BP2 · 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
Open Research Assistant →
Key Publications
Landmark & review papers · by relevance
PubMed
Top 1 results · since 2015Search PubMed ↗