Is CPAP p.Arg1007Gln (c.3020G>A) pathogenic?

CPAP p.Arg1007Gln (c.3020G>A) is classified Likely benign in CPAP (ClinVar, Single submitter, 1 submitter; last evaluated 2024-05-21). AlphaMissense: likely benign (0.0529); Ultra-rare (popmax 0.0121%, afr); Associated with Inborn genetic diseases.

What condition is associated with CPAP p.Arg1007Gln (c.3020G>A)?

CPAP p.Arg1007Gln (c.3020G>A) is associated with Inborn genetic diseases (ClinVar).

How common is CPAP p.Arg1007Gln (c.3020G>A) in the general population?

CPAP p.Arg1007Gln (c.3020G>A) is ultra-rare (popmax 0.0121%, afr) (gnomAD).

What do computational predictors say about CPAP p.Arg1007Gln (c.3020G>A)?

AlphaMissense predicts likely benign (score 0.0529) — an in-silico prediction, not a clinical call.

CPAP p.Arg1007Gln

c.3020G>A · VCV3265922

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0529 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0121%, afr)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.0529	likely benign
REVEL	0.087	moderately benign-leaning
SaProt	LLR -4.60	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 4	GERP -0.87, phastCons 1
Regional constraint	o/e 0.96	unconstrained · MANE · 30 kb · p 0.11 · regional, not allelic
Overall
CADD	18.6	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0121% African / African-American · 9/74,360 alleles

Filtering AF 0.00628% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00471%

Overall 0.000807% 13/1,611,486 alleles · ultra-rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.0121%	8,262
Remaining individualsnot grpmax-eligible	0.0016%	62,428
European (non-Finnish)	0.000254%	392,971

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: CPAP
Protein: p.Arg1007Gln
Coding: c.3020G>A
MANE Select: NM_018451
Type: single nucleotide variant
Location: chr13:24892839 (GRCh38)
Structure: AlphaFold pLDDT 56.70 · 6 PDB
Residue 1007: the 'interaction with stil' region

Full CPAP gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Inborn genetic diseases — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

CPAP p.Arg1007Trp Uncertain significance ★ ⚠ same residue
CPAP p.Ala137Ser Uncertain significance ★★ ⚠ same condition
CPAP p.Arg535Trp Uncertain significance ★★ ⚠ same condition
CPAP p.Arg692His Uncertain significance ★★ ⚠ same condition
CPAP p.Arg723Gly Uncertain significance ★★ ⚠ same condition
CPAP p.Asn1175Ser Uncertain significance ★★ ⚠ same condition
CPAP p.Asp730His Uncertain significance ★★ ⚠ same condition
CPAP p.Asp743Gly Uncertain significance ★★ ⚠ same condition

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/cpap-p-arg1007gln (accessed [today's date]).

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