Is INTU p.Pro690Ser (c.2068C>T) pathogenic?

INTU p.Pro690Ser (c.2068C>T) is classified Uncertain significance in INTU (ClinVar, Single submitter, 1 submitter; last evaluated 2022-09-18). AlphaMissense: likely benign (0.1297); Very rare (popmax 0.000169%, nfe).

How common is INTU p.Pro690Ser (c.2068C>T) in the general population?

INTU p.Pro690Ser (c.2068C>T) is very rare (popmax 0.000169%, nfe) (gnomAD).

What do computational predictors say about INTU p.Pro690Ser (c.2068C>T)?

AlphaMissense predicts likely benign (score 0.1297) — an in-silico prediction, not a clinical call.

INTU p.Pro690Ser

c.2068C>T · rs2531029753 · VCV1719726

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.1297 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.000169%, nfe)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.1297	likely benign
REVEL	0.11	moderately benign-leaning
SaProt	LLR -6.28	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 7.3	GERP 1.8, phastCons 1
Regional constraint	o/e 0.96	unconstrained · MANE · 83 kb · p 0.19 · regional, not allelic
Overall
CADD	20.7	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.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.000169% European (non-Finnish) · 2/1,179,984 alleles

Filtering AF 2.8e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 1.1e-05%

Overall 0.000124% 2/1,614,072 alleles · very rare exomes 2/1,461,760 · genomes 0/152,312 · joint denominator

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: INTU
Protein: p.Pro690Ser
Coding: c.2068C>T
MANE Select: NM_015693
dbSNP: rs2531029753
Type: single nucleotide variant
Location: chr4:127706766 (GRCh38)
Gene constraint: LOEUF 1.012 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 67.35 · 4 PDB
Residue 690: a UniProt-annotated variant site (in srtd7/20; in an srtd7/20 patient who also carries variant wdr35 l-311); a UniProt-annotated variant site (in srtd20; loss of subcellular location to cilium basal body, when tested in a heterologous system)

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

Similar variants

INTU p.Ala611Thr Uncertain significance ★★ ⚠ same type
INTU p.Ala804Val Uncertain significance ★★ ⚠ same type
INTU p.Arg119Thr Uncertain significance ★★ ⚠ same type
INTU p.Arg127Cys Uncertain significance ★★ ⚠ same type
INTU p.Arg510Gln Uncertain significance ★★ ⚠ same type
INTU p.Arg510Trp Uncertain significance ★★ ⚠ same type
INTU p.Arg665Cys Uncertain significance ★★ ⚠ same type
INTU p.Arg705Cys 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/intu-p-pro690ser (accessed [today's date]).

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