Is CASKIN2 p.Pro727His (c.2180C>A) pathogenic?

CASKIN2 p.Pro727His (c.2180C>A) is classified Uncertain significance in CASKIN2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-03-05). AlphaMissense: likely benign (0.0871); Ultra-rare (popmax 0.0697%, mid).

How common is CASKIN2 p.Pro727His (c.2180C>A) in the general population?

CASKIN2 p.Pro727His (c.2180C>A) is ultra-rare (popmax 0.0697%, mid) (gnomAD).

What do computational predictors say about CASKIN2 p.Pro727His (c.2180C>A)?

AlphaMissense predicts likely benign (score 0.0871) — an in-silico prediction, not a clinical call.

CASKIN2 p.Pro727His

c.2180C>A · rs140847529 · VCV2404840

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0871 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0697%, mid)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0871	likely benign
REVEL	0.197	benign-leaning
SaProt	LLR -8.14	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 1	GERP -3.1, phastCons 0.36
Regional constraint	o/e 1.00	unconstrained · MANE · 4,779 bp · p 1 · regional, not allelic
Overall
CADD	10.43	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

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

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0697% Middle Eastern · 4/5,736 alleles

Filtering AF 0.0238% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0143%

Overall 0.00479% 74/1,544,826 alleles · ultra-rare

Ancestry group	Frequency	1 in
Middle Easterngrpmax	0.0697%	1,434
Remaining individualsnot grpmax-eligible	0.0101%	9,915
Admixed American	0.00962%	10,392
European (non-Finnish)	0.00454%	22,023
Finnishnot grpmax-eligible	0.00337%	29,660
African / African-American	0.00274%	36,513
South Asian	0.0025%	40,012
East Asian	0.00226%	44,294

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: CASKIN2
Protein: p.Pro727His
Coding: c.2180C>A
MANE Select: NM_020753
dbSNP: rs140847529
Type: single nucleotide variant
Location: chr17:75502894 (GRCh38)
Gene constraint: LOEUF 0.524 · pLI 0.41 (gnomAD)
Structure: AlphaFold pLDDT 58.59 · 4 PDB
Residue 727: the 'disordered' region

Full CASKIN2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

CASKIN2 p.Pro727Ala Uncertain significance ★ ⚠ same residue
CASKIN2 p.Pro727Arg Uncertain significance ★ ⚠ same residue
CASKIN2 c.1467+8C>A Benign ★★ same type
CASKIN2 p.Ala1005Glu Uncertain significance ★ ⚠ same type
CASKIN2 p.Ala1005Thr Uncertain significance ★ ⚠ same type
CASKIN2 p.Ala1087Gly Uncertain significance ★ ⚠ same type
CASKIN2 p.Ala1087Val Uncertain significance ★ ⚠ same type
CASKIN2 p.Ala1088Thr Uncertain significance ★ ⚠ same type

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/caskin2-p-pro727his (accessed [today's date]).

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