MEX3B

Chr 15

mex-3 RNA binding family member B

Also known as: MEX-3B, RKHD3, RNF195

This gene encodes an RNA-binding phosphoprotein that is part of the MEX3 (muscle excess 3) family of translational regulators. The encoded protein contains N-terminal nuclear export and nuclear localization signals and is exported from the cytoplasm to the nucleus. The protein binds to RNA via two KH domains and also colocalizes with MEX3A, Dcp1A decapping factor and Argonaute proteins within P (processing) bodies. [provided by RefSeq, Oct 2012]

OMIMResearchGenerating clinical summary…
LOFmechanismLOEUF 0.57
Clinical SummaryMEX3B
Population Constraint (gnomAD)
Moderately constrained gene (pLI 0.56) — some intolerance to loss-of-function variants.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Moderate LoF intolerance
LoF Constraint?
0.57LOEUF
pLI 0.555
Z-score 2.51
OE 0.18 (0.070.57)
Moderately constrained

More LoF-intolerant than ~75% of genes

Missense Constraint?
1.06Z-score
OE missense 0.84 (0.770.93)
298 obs / 353.9 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios?
LoF OE?0.18 (0.070.57)
00.351.4
Missense OE?0.84 (0.770.93)
00.61.4
Synonymous OE?1.40
01.21.6
LoF obs/exp: 2 / 11.0Missense obs/exp: 298 / 353.9Syn Z: -4.06

This gene — mechanism propensity

DN
0.5280th %ile
GOF
0.6052th %ile
LOF
0.70top 10%

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

LOFprediction above median

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

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

MEX3B · protein map & ClinVar variants

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

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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