Is EVC p.Asp220= (c.660C>T) pathogenic?

EVC p.Asp220= (c.660C>T) is classified Likely benign in EVC (ClinVar, Single submitter, 1 submitter; last evaluated 2021-08-02). Very rare (popmax 0.00668%, eas); Associated with acrofacial dysostosis, Weyers type.

What condition is associated with EVC p.Asp220= (c.660C>T)?

EVC p.Asp220= (c.660C>T) is associated with acrofacial dysostosis, Weyers type, Ellis-van Creveld syndrome (ClinVar).

How common is EVC p.Asp220= (c.660C>T) in the general population?

EVC p.Asp220= (c.660C>T) is very rare (popmax 0.00668%, eas) (gnomAD).

EVC p.Asp220=

c.660C>T · rs200294295 · VCV1628129

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

very rare (popmax 0.00668%, eas)

Conditions

acrofacial dysostosis, Weyers type

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	<0.2	no splice effect predicted · four deltas, not one · how we know
Constraint at this position
Conservation	phyloP -6	GERP -3.3
Overall
CADD	3.048	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00668% East Asian · 3/44,886 alleles

Filtering AF 0.00177% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000891%

Overall 0.000372% 6/1,613,948 alleles · very rare exomes 3/1,461,782 · genomes 3/152,166 · joint denominator

Ancestry group	Frequency	1 in
East Asiangrpmax	0.00668%	14,962
African / African-American	0.00401%	24,967

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: EVC
Protein: p.Asp220=
Coding: c.660C>T
MANE Select: NM_153717
dbSNP: rs200294295
Type: single nucleotide variant
Location: chr4:5733393 (GRCh38)
Gene constraint: LOEUF 1.134 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 74.49

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

Disease context

acrofacial dysostosis, Weyers type — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: Ellis-van Creveld syndrome

Similar variants

EVC c.1098+1G>A Pathogenic/Likely pathogenic ★★ same condition
EVC c.175-2A>G Pathogenic/Likely pathogenic ★★ same condition
EVC c.1777-1G>A Pathogenic/Likely pathogenic ★★ same condition
EVC c.1777-2A>G Pathogenic/Likely pathogenic ★★ same condition
EVC c.1886+1G>C Likely pathogenic ★★ same condition
EVC c.1886+5G>A Pathogenic ★★ same condition
EVC c.1886+5G>T Pathogenic/Likely pathogenic ★★ same condition
EVC c.2304+2T>C Pathogenic/Likely 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/evc-p-asp220 (accessed [today's date]).

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