Is INTS1 p.Leu1477Pro (c.4430T>C) pathogenic?

INTS1 p.Leu1477Pro (c.4430T>C) is classified Uncertain significance in INTS1 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-02-05). AlphaMissense: likely pathogenic (0.906); No allele count reported in gnomAD v4.1 (AN 1,604,314); Associated with Inborn genetic diseases.

What condition is associated with INTS1 p.Leu1477Pro (c.4430T>C)?

INTS1 p.Leu1477Pro (c.4430T>C) is associated with Inborn genetic diseases (ClinVar).

How common is INTS1 p.Leu1477Pro (c.4430T>C) in the general population?

INTS1 p.Leu1477Pro (c.4430T>C) is no allele count reported in gnomAD v4.1 (AN 1,604,314) (gnomAD).

What do computational predictors say about INTS1 p.Leu1477Pro (c.4430T>C)?

AlphaMissense predicts likely pathogenic (score 0.906) — an in-silico prediction, not a clinical call.

INTS1 p.Leu1477Pro

c.4430T>C · VCV3860756

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.906 · ACMG-weighted

gnomAD v4.1

Not reported

no allele count reported in gnomAD v4.1 (AN 1,604,314)

Missense predictors

2/2 damaging

AlphaMissense, SaProt · REVEL indeterminate

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.906	likely pathogenic
REVEL	0.422	indeterminate
SaProt	LLR -14.62	damaging
⇒ AlphaMissense and SaProt both call this damaging; REVEL is indeterminate.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 11	GERP 0.43, phastCons 1
Regional constraint	o/e 1.09	unconstrained · MANE · 12 kb · p 0.001 · regional, not allelic
Overall
CADD	23.8	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean damaging — 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

No allele count reported in gnomAD v4.1 (AN 1,604,314). This is missing data, not an absence: the variant may or may not be present in gnomAD. Rarity (ACMG PM2) and BA1/BS1 cannot be assessed for it.

Variant & gene context

Gene: INTS1
Protein: p.Leu1477Pro
Coding: c.4430T>C
MANE Select: NM_001080453
Type: single nucleotide variant
Location: chr7:1478785 (GRCh38)
Gene constraint: LOEUF 0.785 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 75.49 · 8 PDB
Residue 1477: an α-helix

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

Disease context

Inborn genetic diseases — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

INTS1 c.1283+5G>A Uncertain significance ★★ same condition
INTS1 c.2977-5C>T Uncertain significance ★★ same condition
INTS1 p.Ala1505Val Uncertain significance ★★ ⚠ same condition
INTS1 p.Ala1854Val Uncertain significance ★★ ⚠ same condition
INTS1 p.Ala2155Val Uncertain significance ★★ ⚠ same condition
INTS1 p.Ala2175Thr Uncertain significance ★★ ⚠ same condition
INTS1 p.Ala4Thr Uncertain significance ★★ ⚠ same condition
INTS1 p.Arg1096Cys Uncertain significance ★★ ⚠ same condition

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-leu1477pro (accessed [today's date]).

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