Is SIN3A p.Arg698Lys (c.2093G>A) pathogenic?

SIN3A p.Arg698Lys (c.2093G>A) is classified Uncertain significance in SIN3A (ClinVar, Single submitter, 1 submitter; last evaluated 2025-02-28). AlphaMissense: likely pathogenic (0.9786); Absent from gnomAD v4.1.

How common is SIN3A p.Arg698Lys (c.2093G>A) in the general population?

SIN3A p.Arg698Lys (c.2093G>A) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about SIN3A p.Arg698Lys (c.2093G>A)?

AlphaMissense predicts likely pathogenic (score 0.9786) — an in-silico prediction, not a clinical call.

SIN3A p.Arg698Lys

c.2093G>A · VCV4077197

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.9786 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

1/2 damaging

AlphaMissense, SaProt · REVEL no call

Computational evidence

Protein change
AlphaMissense	0.9786	likely pathogenic
REVEL	0.527	indeterminate
SaProt	LLR -7.97	tolerated
⇒ AlphaMissense calls this damaging; SaProt does not; REVEL makes no call.
Splicing
SpliceAI	Δ0.75	donor gain · deltas
Pangolin	Δ0.71	loss · gain 0.26 · SpliceAI calls gain · independent
Constraint at this position
Conservation	phyloP 7.7	GERP 1.8, phastCons 1
Regional constraint	o/e 0.09	constrained · MANE · 1,452 bp · p 1.6e-05 · regional, not allelic
Overall
CADD	36.0	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

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: SIN3A
Protein: p.Arg698Lys
Coding: c.2093G>A
MANE Select: NM_001145358
Type: single nucleotide variant
Location: chr15:75396258 (GRCh38)
Gene constraint: LOEUF 0.14 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 69.67
Residue 698: the 'interaction with ncor1' region; the 'interaction with hdac1 and arid4b' region

Full SIN3A gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

SIN3A p.Arg1140Ter Pathogenic ★★ same type
SIN3A p.Arg471Ter Pathogenic ★★ same type
SIN3A p.Arg537Ter Pathogenic ★★ same type
SIN3A p.Arg553Ter Pathogenic/Likely pathogenic ★★ same type
SIN3A p.Arg559Ter Pathogenic/Likely pathogenic ★★ same type
SIN3A p.Arg718Ter Pathogenic/Likely pathogenic ★★ same type
SIN3A p.Arg897Ter Pathogenic ★★ same type
SIN3A p.Arg935Ter Pathogenic/Likely pathogenic ★★ 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/sin3a-p-arg698lys (accessed [today's date]).

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