Is MECOM p.Met707Arg (c.2120T>G) pathogenic?

MECOM p.Met707Arg (c.2120T>G) is classified Uncertain significance in MECOM (ClinVar, Single submitter, 1 submitter; last evaluated 2025-08-09). AlphaMissense: likely pathogenic (0.6178); Very rare (popmax 0.000339%, nfe); Associated with Inborn genetic diseases.

What condition is associated with MECOM p.Met707Arg (c.2120T>G)?

MECOM p.Met707Arg (c.2120T>G) is associated with Inborn genetic diseases (ClinVar).

How common is MECOM p.Met707Arg (c.2120T>G) in the general population?

MECOM p.Met707Arg (c.2120T>G) is very rare (popmax 0.000339%, nfe) (gnomAD).

What do computational predictors say about MECOM p.Met707Arg (c.2120T>G)?

AlphaMissense predicts likely pathogenic (score 0.6178) — an in-silico prediction, not a clinical call.

MECOM p.Met707Arg

c.2120T>G · VCV4105841

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.6178 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.000339%, nfe)

Missense predictors

1/2 damaging

AlphaMissense, SaProt · REVEL no call

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.6178	likely pathogenic
REVEL	0.322	indeterminate
SaProt	LLR -7.57	tolerated
⇒ AlphaMissense calls this damaging; SaProt does not; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 11	GERP 2.5, phastCons 1
Regional constraint	o/e 1.09	unconstrained · MANE · 14 kb · p 0.12 · regional, not allelic
Overall
CADD	34.0	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.000339% European (non-Finnish) · 4/1,180,036 alleles

Filtering AF 7.9e-05% ClinGen BA1/BS1 input FAF95, joint · FAF99 5.4e-05%

Overall 0.000248% 4/1,614,058 alleles · very rare

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: MECOM
Protein: p.Met707Arg
Coding: c.2120T>G
MANE Select: NM_004991
Type: single nucleotide variant
Location: chr3:169115752 (GRCh38)
Gene constraint: LOEUF 0.161 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 51.04 · 1 PDB

Full MECOM 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

MECOM p.Met707Leu Uncertain significance ★ ⚠ same residue
MECOM p.Met707Val Uncertain significance ★ ⚠ same residue
MECOM p.Ala1022Gly Uncertain significance ★★ ⚠ same condition
MECOM p.Ala1228Val Uncertain significance ★★ ⚠ same condition
MECOM p.Ala222Val Uncertain significance ★★ ⚠ same condition
MECOM p.Ala434Val Uncertain significance ★★ ⚠ same condition
MECOM p.Ala477Gly Uncertain significance ★★ ⚠ same condition
MECOM p.Ala537Thr 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/mecom-p-met707arg (accessed [today's date]).

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