Is INTS1 p.Thr1450= (c.4350C>T) pathogenic?

INTS1 p.Thr1450= (c.4350C>T) is classified Benign in INTS1 (ClinVar, Single submitter, 1 submitter; last evaluated 2019-12-31). Low-frequency (popmax 2.17%, afr).

How common is INTS1 p.Thr1450= (c.4350C>T) in the general population?

INTS1 p.Thr1450= (c.4350C>T) is low-frequency (popmax 2.17%, afr) (gnomAD).

INTS1 p.Thr1450=

c.4350C>T · rs73275927 · VCV781894

Benign Single submitter

Classification

Benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

low-frequency (popmax 2.17%, afr)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation/SpliceAI carries the signal.
Splicing
SpliceAI	Δ0.21	acceptor gain · deltas
Constraint at this position
Conservation	phyloP -8.2	GERP -2.3
Overall
CADD	5.559	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 2.17% African / African-American · 1,630/74,980 alleles

Filtering AF 2.09% ClinGen BA1/BS1 input FAF95, joint · FAF99 2.05%

Overall 0.208% 3,352/1,609,418 alleles · low-frequency exomes 2,276/1,457,062 · genomes 1,076/152,356 · joint denominator

Ancestry group	Frequency	1 in
Ashkenazi Jewishnot grpmax-eligible	2.61%	38
African / African-Americangrpmax	2.17%	46
Remaining individualsnot grpmax-eligible	0.414%	242
Middle Eastern	0.331%	302
Admixed American	0.25%	399
European (non-Finnish)	0.043%	2,323
South Asian	0.0187%	5,341

Ashkenazi Jewish shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.

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: INTS1
Protein: p.Thr1450=
Coding: c.4350C>T
MANE Select: NM_001080453
dbSNP: rs73275927
Type: single nucleotide variant
Location: chr7:1478865 (GRCh38)
Gene constraint: LOEUF 0.785 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 75.49 · 8 PDB

Full INTS1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

INTS1 c.3430-2A>C Likely pathogenic ★★ same type
INTS1 p.Arg101Ter Likely pathogenic ★★ same type
INTS1 p.Glu182Ter Likely pathogenic ★★ same type
INTS1 c.1283+5G>A Uncertain significance ★★ same type
INTS1 c.2977-5C>T Uncertain significance ★★ same type
INTS1 p.Ala1112Val Uncertain significance ★★ ⚠ same type
INTS1 p.Ala1505Val Uncertain significance ★★ ⚠ same type
INTS1 p.Ala1854Val 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/ints1-p-thr1450 (accessed [today's date]).

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