Is MAPKAP1 p.His287Arg (c.860A>G) pathogenic?

MAPKAP1 p.His287Arg (c.860A>G) is classified Uncertain significance in MAPKAP1 (ClinVar, Single submitter, 1 submitter; last evaluated 2025-08-21). AlphaMissense: likely benign (0.2868); Absent from gnomAD v4.1.

How common is MAPKAP1 p.His287Arg (c.860A>G) in the general population?

MAPKAP1 p.His287Arg (c.860A>G) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about MAPKAP1 p.His287Arg (c.860A>G)?

AlphaMissense predicts likely benign (score 0.2868) — an in-silico prediction, not a clinical call.

MAPKAP1 p.His287Arg

c.860A>G · VCV4103868

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.2868 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.2868	likely benign
REVEL	0.212	benign-leaning
SaProt	LLR -6.24	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	Δ0.41	acceptor loss, 20 bp away · masked 0 · deltas
Constraint at this position
Conservation	phyloP 7.7	GERP 2.8, phastCons 1
Regional constraint	o/e 0.49	unconstrained · MANE · 115 kb · p 4.5e-13 · regional, not allelic
Overall
CADD	21.7	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

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: MAPKAP1
Protein: p.His287Arg
Coding: c.860A>G
MANE Select: NM_001006617
Type: single nucleotide variant
Location: chr9:125543157 (GRCh38)
Gene constraint: LOEUF 0.369 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 69.55 · 23 PDB
Residue 287: the 'sin1-type rbd' region

Full MAPKAP1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

MAPKAP1 p.Ser488= Benign ★★ same type
MAPKAP1 p.Ala201Thr Uncertain significance ★ ⚠ same type
MAPKAP1 p.Ala229Asp Uncertain significance ★ same type
MAPKAP1 p.Ala286Thr Uncertain significance ★ ⚠ same type
MAPKAP1 p.Arg15Gln Uncertain significance ★ ⚠ same type
MAPKAP1 p.Arg202Lys Uncertain significance ★ ⚠ same type
MAPKAP1 p.Arg503Ile Uncertain significance ★ ⚠ same type
MAPKAP1 p.Asn476Ser 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/mapkap1-p-his287arg (accessed [today's date]).

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