MOB3B

Chr 9

MOB kinase activator 3B

Also known as: C9orf35, MOB1D, MOBKL2B

NCBI Gene: 79817ENSG00000120162UniProt: Q86TA1

The protein encoded by this gene shares similarity with the yeast Mob1 protein. Yeast Mob1 binds Mps1p, a protein kinase essential for spindle pole body duplication and mitotic checkpoint regulation. This gene is located on the opposite strand as the interferon kappa precursor (IFNK) gene. [provided by RefSeq, Jul 2008]

142
ClinVar variants
72
Pathogenic / LP
0.02
pLI score
0
Active trials
Clinical Summary— MOB3B
⚡
Population Constraint (gnomAD)
Low constraint (pLI 0.02) — loss-of-function variants are relatively tolerated in the population.
📋
ClinVar Variants
72 Pathogenic / Likely Pathogenic· 52 VUS of 142 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

gnomAD
Tolerant — LoF & missense variants common in population
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.
1.08LOEUF
pLI 0.016
Z-score 1.43
OE 0.47 (0.23–1.08)
Tolerant

Highly tolerant — LoF variants common in population

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.
1.12Z-score
OE missense 0.72 (0.61–0.86)
95 obs / 131.2 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.0.47 (0.23–1.08)
0≤0.351.4
Missense OE?Ratio of observed to expected missense variants. OE ≤ 0.6 = fewer missense variants than expected by chance.0.72 (0.61–0.86)
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.0.93
0≤1.21.6
LoF obs/exp: 4 / 8.5Missense obs/exp: 95 / 131.2Syn Z: 0.36

ClinVar Variant Classifications

142 submitted variants in ClinVar

ClinVar

Classification Summary

Pathogenic66
Likely Pathogenic6
VUS52
Likely Benign3
66
Pathogenic
6
Likely Pathogenic
52
VUS
3
Likely Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
66
0
66
Likely Pathogenic
0
0
6
0
6
VUS
0
41
11
0
52
Likely Benign
0
1
1
1
3
Benign
0
0
0
0
0
Total042841127

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

View in ClinVar →

Protein Context — Lollipop Plot

MOB3B · 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
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