Is MAPK8IP3 p.Ala883Pro (c.2647G>C) pathogenic?

MAPK8IP3 p.Ala883Pro (c.2647G>C) is classified Uncertain significance in MAPK8IP3 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-11-26). AlphaMissense: likely benign (0.075); Very rare (popmax 8.49e-05%, nfe); Associated with Inborn genetic diseases.

What condition is associated with MAPK8IP3 p.Ala883Pro (c.2647G>C)?

MAPK8IP3 p.Ala883Pro (c.2647G>C) is associated with Inborn genetic diseases (ClinVar).

How common is MAPK8IP3 p.Ala883Pro (c.2647G>C) in the general population?

MAPK8IP3 p.Ala883Pro (c.2647G>C) is very rare (popmax 8.49e-05%, nfe) (gnomAD).

What do computational predictors say about MAPK8IP3 p.Ala883Pro (c.2647G>C)?

AlphaMissense predicts likely benign (score 0.075) — an in-silico prediction, not a clinical call.

MAPK8IP3 p.Ala883Pro

c.2647G>C · VCV3543205

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.075 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 8.49e-05%, nfe)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.075	likely benign
REVEL	0.053	moderately benign-leaning
SaProt	LLR -5.95	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	<0.2	no splice effect predicted · four deltas, not one · how we know
Constraint at this position
Conservation	phyloP 1.5	GERP 0.87, phastCons 0.85
Regional constraint	o/e 0.88	unconstrained · MANE · 5,099 bp · p 0.00099 · regional, not allelic
Overall
CADD	17.51	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 A882P vs ClinVar A883P) — verify the residue.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 8.49e-05% European (non-Finnish) · 1/1,178,194 alleles

Overall 6.21e-05% 1/1,609,636 alleles · very rare exomes 0/1,457,454 · genomes 1/152,182 · 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: MAPK8IP3
Protein: p.Ala883Pro
Coding: c.2647G>C
MANE Select: NM_001318852
Type: single nucleotide variant
Location: chr16:1766237 (GRCh38)
Gene constraint: LOEUF 0.407 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 63.19 · 5 PDB
Residue 882 UniProt numbering: the 'disordered' region; a UniProt-annotated variant site (in nedba)

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.Ala883Thr Uncertain significance ★★ ⚠ same residue
MAPK8IP3 p.Arg579Cys Pathogenic/Likely pathogenic ★★ same condition
MAPK8IP3 c.1898+5G>A 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
MAPK8IP3 p.Arg612Cys 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-ala883pro (accessed [today's date]).

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