Is CFD c.212+1G>A pathogenic?

CFD c.212+1G>A is classified Likely pathogenic in CFD (ClinVar, Single submitter, 2 submitters; last evaluated 2024-08-28). Very rare (popmax 0.00135%, afr); Associated with CFD-related disorder.

What condition is associated with CFD c.212+1G>A?

CFD c.212+1G>A is associated with CFD-related disorder (ClinVar).

How common is CFD c.212+1G>A in the general population?

CFD c.212+1G>A is very rare (popmax 0.00135%, afr) (gnomAD).

CFD c.212+1G>A

VCV4447255

Likely pathogenic Single submitter

Classification

Likely pathogenic

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 2 submitters

Consequence

canonical splice-site (±1/±2)

predicted LoF

gnomAD v4.1

Rare

very rare (popmax 0.00135%, afr)

Conditions

CFD-related disorder

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation/SpliceAI carries the signal.
Consequence	canonical splice-site (±1/±2)	predicted loss-of-function
Splicing
Splice region	donor +1	canonical splice dinucleotide (donor +1) · inside the BP7-excluded zone
SpliceAI	Δ0.97	donor loss · deltas
Pangolin	Δ0.79	loss · gain 0.02 · agrees with SpliceAI · independent
Constraint at this position
Conservation	phyloP 11	GERP 2.2, phastCons 1
Non-coding constraint	Z 1.77	1 kb window · o/e 0.89 · regional · uncalibrated
Overall
CADD	27.4	PHRED · no single calibrated threshold — expert panels disagree

Predicted loss-of-function is descriptive, not an applied PVS1 code.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00135% African / African-American · 1/73,882 alleles

Filtering AF 0.000507% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000371%

Overall 0.000767% 12/1,564,328 alleles · very rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.00135%	73,882
European (non-Finnish)	0.000945%	105,817

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: CFD
Coding: c.212+1G>A
MANE Select: NM_001928
Type: single nucleotide variant
Location: chr19:860774 (GRCh38)
Gene constraint: LOEUF 1.948 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure: AlphaFold pLDDT 91.19 · 40 PDB

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

Disease context

CFD-related disorder

Similar variants

ELANE p.Ser126Leu Pathogenic ★★ ⚠ same condition
CFD p.Gln167His Uncertain significance ★★ ⚠ same condition
CFD c.55+1G>A Likely pathogenic ★ same condition
CFD c.-8G>A Likely benign same condition
CFD p.Glu89fs Likely pathogenic ★ same condition
CFD p.Val97fs Likely pathogenic ★ same condition
CFD c.212+2T>G Likely pathogenic ★★ same type
CFD c.56-1G>C Likely pathogenic ★★ 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/cfd-c-212-plus-1g-a (accessed [today's date]).

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