Is MAPK8IP3 p.Pro756Ala (c.2266C>G) pathogenic?

MAPK8IP3 p.Pro756Ala (c.2266C>G) is classified Uncertain significance in MAPK8IP3 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-01-09). AlphaMissense: likely benign (0.0998); Absent from gnomAD v4.1; Associated with Inborn genetic diseases.

What condition is associated with MAPK8IP3 p.Pro756Ala (c.2266C>G)?

MAPK8IP3 p.Pro756Ala (c.2266C>G) is associated with Inborn genetic diseases (ClinVar).

How common is MAPK8IP3 p.Pro756Ala (c.2266C>G) in the general population?

MAPK8IP3 p.Pro756Ala (c.2266C>G) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about MAPK8IP3 p.Pro756Ala (c.2266C>G)?

AlphaMissense predicts likely benign (score 0.0998) — an in-silico prediction, not a clinical call.

MAPK8IP3 p.Pro756Ala

c.2266C>G · VCV3870491

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0998 · ACMG-weighted

gnomAD v4.1

Not reported

no allele count reported in gnomAD v4.1 (AN 1,608,502)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.0998	likely benign
REVEL	0.163	moderately benign-leaning
SaProt	LLR -6.61	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 7.4	GERP 2.1, phastCons 1
Regional constraint	o/e 0.88	unconstrained · MANE · 5,099 bp · p 0.00099 · regional, not allelic
Overall
CADD	22.3	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 P755A vs ClinVar P756A) — verify the residue.

Population frequency

gnomAD v4.1 · exomes + genomes

No allele count reported in gnomAD v4.1 (AN 1,608,502). 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: MAPK8IP3
Protein: p.Pro756Ala
Coding: c.2266C>G
MANE Select: NM_001318852
Type: single nucleotide variant
Location: chr16:1764445 (GRCh38)
Gene constraint: LOEUF 0.407 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 63.19 · 5 PDB
Residue 756: a UniProt-annotated variant site (in nedba); the 'disordered' region

Full MAPK8IP3 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

MAPK8IP3 p.Pro756= Likely benign ★ same residue
MAPK8IP3 p.Arg579Cys Pathogenic/Likely pathogenic ★★ same condition
MAPK8IP3 c.1898+5G>A Uncertain significance ★★ same condition
MAPK8IP3 p.Ala883Thr Uncertain significance ★★ ⚠ same condition
MAPK8IP3 p.Arg1012Cys Uncertain significance ★★ ⚠ same condition
MAPK8IP3 p.Arg1187Gln Uncertain significance ★★ ⚠ same condition
MAPK8IP3 p.Arg308Cys Uncertain significance ★★ ⚠ same condition
MAPK8IP3 p.Arg310Trp 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/mapk8ip3-p-pro756ala (accessed [today's date]).

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