Is INTS2 p.Cys283Ser (c.848G>C) pathogenic?

INTS2 p.Cys283Ser (c.848G>C) is classified Likely benign in INTS2 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-03-27). AlphaMissense: likely benign (0.0585); Absent from gnomAD v4.1.

How common is INTS2 p.Cys283Ser (c.848G>C) in the general population?

INTS2 p.Cys283Ser (c.848G>C) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about INTS2 p.Cys283Ser (c.848G>C)?

AlphaMissense predicts likely benign (score 0.0585) — an in-silico prediction, not a clinical call.

INTS2 p.Cys283Ser

c.848G>C · VCV4039022

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0585 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0585	likely benign
REVEL	0.051	moderately benign-leaning
SaProt	LLR -3.48	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	<0.2	no splice effect predicted · four deltas, not one · how we know
Constraint at this position
Conservation	phyloP 0.68	GERP -0.17, phastCons 1
Regional constraint	o/e 0.84	unconstrained · MANE · 59 kb · p 6.2e-09 · regional, not allelic
Overall
CADD	16.46	PHRED · no single calibrated threshold — expert panels disagree

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

⚠ Isoform check: AlphaMissense numbered on a different transcript (AM C291S vs ClinVar C283S) — verify the residue.

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: INTS2
Protein: p.Cys283Ser
Coding: c.848G>C
MANE Select: NM_001351695
Type: single nucleotide variant
Location: chr17:61911626 (GRCh38)
Gene constraint: LOEUF 0.491 · pLI 0.98 (gnomAD)
Structure: AlphaFold pLDDT 78.90 · 8 PDB
Residue 291 UniProt numbering: an α-helix

Full INTS2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

INTS2 c.-17A>G Uncertain significance ★ ⚠ same type
INTS2 c.-1A>G Uncertain significance ★ ⚠ same type
INTS2 c.-3A>G Uncertain significance ★ ⚠ same type
INTS2 p.Ala1125Ser Uncertain significance ★ ⚠ same type
INTS2 p.Ala379Val Uncertain significance ★ same type
INTS2 p.Ala400Asp Uncertain significance ★ ⚠ same type
INTS2 p.Ala57Val Uncertain significance ★ ⚠ same type
INTS2 p.Ala599Val 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/ints2-p-cys283ser (accessed [today's date]).

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