ANKRD33B
Chr 5ankyrin repeat domain 33B
198
ClinVar variants
99
Pathogenic / LP
0.43
pLI score
0
Active trials
Clinical Summary— ANKRD33B
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Population Constraint (gnomAD)
Constrained for loss-of-function variants (OE-LoF 0.21) despite low pLI — interpret in context.
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ClinVar Variants
99 Pathogenic / Likely Pathogenic· 93 VUS of 198 total submissions
Population Genetics & Constraint
gnomAD v4 — loss-of-function & missense intolerance
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.
0.55LOEUF
pLI 0.432
Z-score 2.73
OE 0.21 (0.10–0.55)
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.
2.09Z-score
OE missense 0.67 (0.59–0.75)
209 obs / 313.3 exp
Moderately missense-constrained (top ~2.5%)
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.0.21 (0.10–0.55)
0≤0.351.4
Missense OE?Ratio of observed to expected missense variants. OE ≤ 0.6 = fewer missense variants than expected by chance.0.67 (0.59–0.75)
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.0.74
0≤1.21.6
LoF obs/exp: 3 / 14.1Missense obs/exp: 209 / 313.3Syn Z: 2.52
ClinVar Variant Classifications
198 submitted variants in ClinVar
Classification Summary
Pathogenic99
VUS93
Likely Benign6
99
Pathogenic
93
VUS
6
Likely Benign
Curated Variants Distribution
Classified variants from ClinVar · 5 ACMG categories
| Classification | LoF | Missense + Inframe | Non-coding | Synonymous | Total |
|---|---|---|---|---|---|
Pathogenic | 0 | 0 | 99 | 0 | 99 |
Likely Pathogenic | 0 | 0 | 0 | 0 | 0 |
VUS | 0 | 85 | 8 | 0 | 93 |
Likely Benign | 0 | 5 | 1 | 0 | 6 |
Benign | 0 | 0 | 0 | 0 | 0 |
| Total | 0 | 90 | 108 | 0 | 198 |
LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly
View in ClinVar →Protein Context — Lollipop Plot
ANKRD33B · protein map & ClinVar variants
Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.
OMIM — Genotype-Phenotype
No OMIM entries found.
External Resources
Links to major genomics databases and tools
Variant Interpretation
Population Databases
Gene Resources
Expert Curation
ClinGen
Expert-curated gene-disease validity
GenCC
Gene Curation Coalition — multi-curator classifications
Orphanet
Rare disease encyclopedia and gene-disease associations
PanelApp
Gene panels for rare disease diagnostics (Genomics England)
LOVD
Leiden Open Variation Database — variant listings
GeneReviews
Expert-authored summaries of heritable conditions (NCBI)
Clinical Literature
Landmark / reviewRecent case evidence
Key Publications
Landmark & review papers · by relevance
Genome-wide association study identifying novel risk variants associated with glycaemic traits in the continental African AWI-Gen cohort.
Chebii VJ et al.·Diabetologia
2025Cohort
Construction and Validation of a Nomogram for the Preoperative Prediction of Lymph Node Metastasis in Gastric Cancer.
Li S et al.·Cancer Control
2021
Top 10 resultsSearch PubMed ↗
Recent Gene-Specific Literature
Gene in title · MEDLINE · newest first
No open access results found
Top 5 resultsSearch Europe PMC ↗
Clinical Trials
Active and recruiting trials from ClinicalTrials.gov
No active trials found for this gene.
Search ClinicalTrials.gov →External Resources
Links to major genomics databases and tools
Variant Interpretation
Population Databases
Gene Resources
Expert Curation
ClinGen
Expert-curated gene-disease validity
GenCC
Gene Curation Coalition — multi-curator classifications
Orphanet
Rare disease encyclopedia and gene-disease associations
PanelApp
Gene panels for rare disease diagnostics (Genomics England)
LOVD
Leiden Open Variation Database — variant listings
GeneReviews
Expert-authored summaries of heritable conditions (NCBI)