Is INTS2 p.Ser324Thr (c.971G>C) pathogenic?

INTS2 p.Ser324Thr (c.971G>C) is classified Uncertain significance in INTS2 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-03-02). AlphaMissense: likely benign (0.0717); Ultra-rare (popmax 0.0847%, mid).

How common is INTS2 p.Ser324Thr (c.971G>C) in the general population?

INTS2 p.Ser324Thr (c.971G>C) is ultra-rare (popmax 0.0847%, mid) (gnomAD).

What do computational predictors say about INTS2 p.Ser324Thr (c.971G>C)?

AlphaMissense predicts likely benign (score 0.0717) — an in-silico prediction, not a clinical call.

INTS2 p.Ser324Thr

c.971G>C · rs201091134 · VCV2455265

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0717 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0847%, mid)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0717	likely benign
REVEL	0.076	moderately benign-leaning
SaProt	LLR -6.95	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	<0.2	all four deltas below 0.2 · C>T here scores Δ0.21 · evaluated, not missing
Constraint at this position
Conservation	phyloP 7.7	GERP 2, phastCons 1
Regional constraint	o/e 0.84	unconstrained · MANE · 59 kb · p 6.2e-09 · regional, not allelic
Overall
CADD	21.8	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.

⚠ Isoform check: AlphaMissense numbered on a different transcript (AM S332T vs ClinVar S324T) — verify the residue.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0847% Middle Eastern · 5/5,900 alleles

Filtering AF 0.0333% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0216%

Overall 0.0207% 327/1,583,126 alleles · ultra-rare exomes 295/1,430,794 · genomes 32/152,332 · joint denominator

Ancestry group	Frequency	1 in
Middle Easterngrpmax	0.0847%	1,180
European (non-Finnish)	0.0249%	4,012
Remaining individualsnot grpmax-eligible	0.0244%	4,095
Admixed American	0.0163%	6,117
African / African-American	0.00536%	18,664
Ashkenazi Jewishnot grpmax-eligible	0.00345%	28,984
Finnishnot grpmax-eligible	0.00321%	31,161
South Asian	0.00116%	86,466

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: INTS2
Protein: p.Ser324Thr
Coding: c.971G>C
MANE Select: NM_001351695
dbSNP: rs201091134
Type: single nucleotide variant
Location: chr17:61907618 (GRCh38)
Gene constraint: LOEUF 0.491 · pLI 0.98 (gnomAD)
Structure: AlphaFold pLDDT 78.90 · 8 PDB
Residue 332 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-ser324thr (accessed [today's date]).

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