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CDK13 p.Cys995=

c.2985C>T · rs56028037 · VCV790588

Benign/Likely benign Multiple submitters
Classification
Benign/Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 5 submitters
gnomAD v4.1
Rare
rare (popmax 0.505%, afr)

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 -0.34GERP -1.3, phastCons 0.29
Overall
CADD10.53PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.505% African / African-American · 365/72,210 alleles
Filtering AF 0.463% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.446%
Overall 0.072% 1,093/1,518,082 alleles · rare
Ancestry group Frequency 1 in
African / African-Americangrpmax 0.505% 198
Ashkenazi Jewishnot grpmax-eligible 0.323% 309
Admixed American 0.203% 493
Remaining individualsnot grpmax-eligible 0.133% 753
European (non-Finnish) 0.04% 2,500
Middle Eastern 0.0354% 2,824
East Asian 0.00493% 20,279
Finnishnot grpmax-eligible 0.00171% 58,400
South Asian 0.00132% 75,810

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
CDK13
Protein
p.Cys995=
Coding
c.2985C>T
MANE Select
NM_003718
dbSNP
rs56028037
Type
single nucleotide variant
Location
chr7:40078807 (GRCh38)
Gene constraint
LOEUF 0.434 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure
AlphaFold pLDDT 50.59 · 2 PDB
Residue 995
the protein kinase domain
Full CDK13 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/cdk13-p-cys995 (accessed [today's date]).

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