Is MORC2 p.Pro710Ser (c.2128C>T) pathogenic?

MORC2 p.Pro710Ser (c.2128C>T) is classified Uncertain significance in MORC2 (ClinVar, Single submitter, 2 submitters; last evaluated 2024-12-09). AlphaMissense: likely benign (0.0735); Ultra-rare (popmax 0.0283%, amr); Associated with Charcot-Marie-Tooth disease axonal type 2Z.

What condition is associated with MORC2 p.Pro710Ser (c.2128C>T)?

MORC2 p.Pro710Ser (c.2128C>T) is associated with Charcot-Marie-Tooth disease axonal type 2Z (ClinVar).

How common is MORC2 p.Pro710Ser (c.2128C>T) in the general population?

MORC2 p.Pro710Ser (c.2128C>T) is ultra-rare (popmax 0.0283%, amr) (gnomAD).

What do computational predictors say about MORC2 p.Pro710Ser (c.2128C>T)?

AlphaMissense predicts likely benign (score 0.0735) — an in-silico prediction, not a clinical call.

MORC2 p.Pro710Ser

Q: How is Autosomal dominant Charcot-Marie-Tooth disease type 2Z inherited?

Typically Autosomal dominant (Orphanet). A genetic counselor can assess individual risk for a family.

c.2128C>T · rs780648306 · VCV542278

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 2 submitters

AlphaMissense

likely benign

0.0735 · ACMG-weighted

gnomAD v4.1

Rare

ultra-rare (popmax 0.0283%, amr)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

Charcot-Marie-Tooth disease axonal type 2Z

Computational evidence

Protein change
AlphaMissense	0.0735	likely benign
REVEL	0.092	moderately benign-leaning
SaProt	LLR -5.79	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 3.5	GERP 0.89, phastCons 1
Regional constraint	o/e 1.02	unconstrained · MANE · 1,093 bp · p 0.79 · regional, not allelic
Overall
CADD	18.4	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 0.0283% Admixed American · 17/60,002 alleles

Filtering AF 0.018% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0147%

Overall 0.00124% 20/1,614,042 alleles · ultra-rare exomes 17/1,461,884 · genomes 3/152,158 · joint denominator

Ancestry group	Frequency	1 in
Admixed Americangrpmax	0.0283%	3,530
European (non-Finnish)	0.000254%	393,345

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: MORC2
Protein: p.Pro710Ser
Coding: c.2128C>T
MANE Select: NM_001303256
dbSNP: rs780648306
Type: single nucleotide variant
Location: chr22:30934846 (GRCh38)
Gene constraint: LOEUF 0.3 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 78.37 · 9 PDB
Residue 710: the 'disordered' region

Full MORC2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Charcot-Marie-Tooth disease axonal type 2Z — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Autosomal dominant Charcot-Marie-Tooth disease type 2Z (Orphanet):

Inheritance: Autosomal dominant
Onset: Adolescent, Adult, Childhood, Infancy, Neonatal

Similar variants

MORC2 p.Pro710fs Uncertain significance ★ same residue
MORC2 p.Arg132Cys Pathogenic/Likely pathogenic ★★ same condition
MORC2 p.Arg252Trp Pathogenic/Likely pathogenic ★★ same condition
MORC2 p.Arg266Ser Pathogenic/Likely pathogenic ★★ same condition
MORC2 p.Asp466Asn Pathogenic/Likely pathogenic ★★ ⚠ same condition
MORC2 p.Glu236Gly Pathogenic/Likely pathogenic ★★ same condition
MORC2 p.Glu27Lys Pathogenic/Likely pathogenic ★★ ⚠ same condition
MORC2 p.Ser87Leu Pathogenic ★★ 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/morc2-p-pro710ser (accessed [today's date]).

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