CCNI2

Chr 5

cyclin I family member 2

NCBI Gene: 645121ENSG00000205089UniProt: Q6ZMN8

Predicted to enable cyclin-dependent protein serine/threonine kinase regulator activity. Predicted to be involved in G1/S transition of mitotic cell cycle. Predicted to be part of cyclin-dependent protein kinase holoenzyme complex. Predicted to be active in cytoplasm and nucleus. [provided by Alliance of Genome Resources, Jul 2025]

78
ClinVar variants
14
Pathogenic / LP
0.00
pLI score
0
Active trials
Clinical Summary— CCNI2
⚡
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — loss-of-function variants are relatively tolerated in the population.
📋
ClinVar Variants
14 Pathogenic / Likely Pathogenic· 60 VUS of 78 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.
1.61LOEUF
pLI 0.000
Z-score 0.05
OE 0.98 (0.62–1.61)
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.
1.19Z-score
OE missense 0.74 (0.64–0.86)
127 obs / 170.6 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.0.98 (0.62–1.61)
0≤0.351.4
Missense OE?Ratio of observed to expected missense variants. OE ≤ 0.6 = fewer missense variants than expected by chance.0.74 (0.64–0.86)
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.0.78
0≤1.21.6
LoF obs/exp: 11 / 11.2Missense obs/exp: 127 / 170.6Syn Z: 1.56

ClinVar Variant Classifications

78 submitted variants in ClinVar

ClinVar

Classification Summary

Pathogenic13
Likely Pathogenic1
VUS60
Likely Benign4
13
Pathogenic
1
Likely Pathogenic
60
VUS
4
Likely Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
13
0
13
Likely Pathogenic
0
0
1
0
1
VUS
0
58
2
0
60
Likely Benign
0
2
1
1
4
Benign
0
0
0
0
0
Total06017178

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

View in ClinVar →

Protein Context — Lollipop Plot

CCNI2 · 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