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CDK12 p.Asn1294=

c.3882C>T · VCV3489326

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00212%, nfe)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 0.85GERP 0.08, phastCons 1
Overall
CADD5.781PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00212% European (non-Finnish) · 25/1,179,882 alleles
Filtering AF 0.00145% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00123%
Overall 0.00155% 25/1,613,658 alleles · very rare

Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.

Variant & gene context

Gene
CDK12
Protein
p.Asn1294=
Coding
c.3882C>T
MANE Select
NM_016507
Type
single nucleotide variant
Location
chr17:39530725 (GRCh38)
Gene constraint
LOEUF 0.21 · pLI 1.00 (gnomAD)
Structure
AlphaFold pLDDT 51.39 · 39 PDB
Residue 1294
the 'disordered' region
Full CDK12 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

Built on 18 open, versioned datasets — ClinVar, gnomAD, AlphaMissense, REVEL, ClinGen & more — plus Sugi Variant's own cross-source analysis. Source data 2026-01–2026-10, ClinVar 2026-10. Full sources & versions →

Cite Sugi Variant

Gür T. Sugi Variant: A Deterministic Per-Variant Germline Reference from a Knowledge Graph for Humans and AI Agents. 2026. doi:10.5281/zenodo.21509445. This variant: https://sugi.bio/variant/cdk12-p-asn1294 (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown