Is MAPK7 p.Ala621Val (c.1862C>T) pathogenic?

MAPK7 p.Ala621Val (c.1862C>T) is classified Uncertain significance in MAPK7 (ClinVar, Single submitter, 1 submitter; last evaluated 2024-04-01). AlphaMissense: likely benign (0.0971); Ultra-rare (popmax 0.0254%, afr).

How common is MAPK7 p.Ala621Val (c.1862C>T) in the general population?

MAPK7 p.Ala621Val (c.1862C>T) is ultra-rare (popmax 0.0254%, afr) (gnomAD).

What do computational predictors say about MAPK7 p.Ala621Val (c.1862C>T)?

AlphaMissense predicts likely benign (score 0.0971) — an in-silico prediction, not a clinical call.

MAPK7 p.Ala621Val

c.1862C>T · VCV3293242

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0971 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0254%, afr)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.0971	likely benign
REVEL	0.069	moderately benign-leaning
SaProt	LLR -7.81	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 0.59	phastCons 0.083
Regional constraint	o/e 1.11	unconstrained · MANE · 821 bp · p 0.1 · regional, not allelic
Overall
CADD	2.958	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 0.0254% African / African-American · 19/74,872 alleles

Filtering AF 0.0166% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0137%

Overall 0.00447% 72/1,612,330 alleles · ultra-rare exomes 56/1,460,242 · genomes 16/152,088 · joint denominator

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.0254%	3,941
Admixed American	0.0133%	7,499
Remaining individualsnot grpmax-eligible	0.00801%	12,489
South Asian	0.00439%	22,767
European (non-Finnish)	0.00297%	33,706
East Asian	0.00223%	44,856

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: MAPK7
Protein: p.Ala621Val
Coding: c.1862C>T
MANE Select: NM_002749
Type: single nucleotide variant
Location: chr17:19382165 (GRCh38)
Gene constraint: LOEUF 0.689 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 66.87 · 14 PDB
Residue 621: the 'disordered' region; the 'may not be required for kinase activity; required to stimulate mef2c activity' region

Full MAPK7 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

MAPK7 p.Pro551Ser Benign/Likely benign ★★ same type
MAPK7 p.Ala288Ser Uncertain significance ★ ⚠ same type
MAPK7 p.Ala29Gly Uncertain significance ★ ⚠ same type
MAPK7 p.Ala334Thr Uncertain significance ★ ⚠ same type
MAPK7 p.Ala348Ser Uncertain significance ★ ⚠ same type
MAPK7 p.Ala360Val Uncertain significance ★ ⚠ same type
MAPK7 p.Ala481Ser Uncertain significance ★ ⚠ same type
MAPK7 p.Ala497Val 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/mapk7-p-ala621val (accessed [today's date]).

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