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CCNL2 p.Arg40=

c.120G>A · rs374471834 · VCV3058762

Likely benign No assertion criteria
Classification
Likely benign
ClinVar
Review
No assertion criteria ☆☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
rare (popmax 0.679%, sas)
Conditions
1
CCNL2-related disorder

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 0.76GERP -3.4, phastCons 1
Overall
CADD11.92PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.679% South Asian · 616/90,746 alleles
Filtering AF 0.634% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.617%
Overall 0.0552% 888/1,610,138 alleles · rare
Ancestry group Frequency 1 in
South Asiangrpmax 0.679% 147
Middle Eastern 0.0826% 1,210
Remaining individualsnot grpmax-eligible 0.0513% 1,949
Admixed American 0.0234% 4,276
European (non-Finnish) 0.0183% 5,458
African / African-American 0.00404% 24,775
East Asian 0.00225% 44,496
Finnishnot grpmax-eligible 0.00159% 63,060

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
CCNL2
Protein
p.Arg40=
Coding
c.120G>A
MANE Select
NM_030937
dbSNP
rs374471834
Type
single nucleotide variant
Location
chr1:1399187 (GRCh38)
Gene constraint
LOEUF 0.665 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 70.06 · 4 PDB
Full CCNL2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

CCNL2-related disorder

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/ccnl2-p-arg40 (accessed [today's date]).

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