KLF12

Chr 13

KLF transcription factor 12

Also known as: AP-2rep, AP2REP, HSPC122

The protein is a transcriptional repressor that belongs to the Kruppel-like zinc finger family and specifically represses AP-2 alpha gene expression by binding to its promoter. This gene is highly constrained against loss-of-function variants (pLI 0.98, LOEUF 0.29), indicating that mutations are likely to cause severe developmental consequences. However, no specific Mendelian diseases have been definitively associated with KLF12 mutations in current clinical databases.

OMIMResearchSummary from RefSeq, UniProt
LOFmechanismLOEUF 0.29
Clinical SummaryKLF12
Population Constraint (gnomAD)
Highly constrained gene — heterozygous loss-of-function variants are very rare in the population (pLI 0.98). One damaged copy is likely sufficient to cause disease.
📋
ClinVar Variants
69 unique Pathogenic / Likely Pathogenic· 57 VUS of 136 total submissions

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

LoF intolerant — likely haploinsufficient
LoF Constraint
0.29LOEUF
pLI 0.981
Z-score 3.53
OE 0.06 (0.020.29)
Highly constrained

Highly LoF-intolerant (top ~10% of genes)

Missense Constraint
1.79Z-score
OE missense 0.68 (0.600.77)
167 obs / 246.2 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.06 (0.020.29)
00.351.4
Missense OE0.68 (0.600.77)
00.61.4
Synonymous OE1.08
01.21.6
LoF obs/exp: 1 / 16.5Missense obs/exp: 167 / 246.2Syn Z: -0.64
DN
0.4488th %ile
GOF
0.2597th %ile
LOF
0.83top 5%

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

LOFprediction above median · LOEUF 0.29

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312. Mechanism ranking also informed by gnomAD constraint, ClinVar, and ClinGen data.

ClinVar Variant Classifications

136 submitted variants in ClinVar

Classification Summary

Pathogenic69
VUS57
Likely Benign1
69
Pathogenic
57
VUS
1
Likely Benign

Curated Variants Distribution

Classified variants from ClinVar · 5 ACMG categories

ClassificationLoFMissense + InframeNon-codingSynonymousTotal
Pathogenic
0
0
69
0
69
Likely Pathogenic
0
0
0
0
0
VUS
0
46
11
0
57
Likely Benign
0
0
1
0
1
Benign
0
0
0
0
0
Total046810127

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

View in ClinVar →

Protein Context — Lollipop Plot

KLF12 · 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
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