Is CP p.Ser777= (c.2331A>C) pathogenic?

CP p.Ser777= (c.2331A>C) is classified Likely benign in CP (ClinVar, Single submitter, 1 submitter; last evaluated 2022-02-04). Very rare (popmax 8.5e-05%, nfe); Associated with aceruloplasminemia.

What condition is associated with CP p.Ser777= (c.2331A>C)?

CP p.Ser777= (c.2331A>C) is associated with aceruloplasminemia (ClinVar).

How common is CP p.Ser777= (c.2331A>C) in the general population?

CP p.Ser777= (c.2331A>C) is very rare (popmax 8.5e-05%, nfe) (gnomAD).

How is Aceruloplasminemia inherited?

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

CP p.Ser777=

c.2331A>C · rs746132110 · VCV1528054

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Rare

very rare (popmax 8.5e-05%, nfe)

Conditions

aceruloplasminemia

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP -2.6	GERP -4.1
Overall
CADD	3.093	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 8.5e-05% European (non-Finnish) · 1/1,176,538 alleles

Overall 6.86e-05% 1/1,457,024 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: CP
Protein: p.Ser777=
Coding: c.2331A>C
MANE Select: NM_000096
dbSNP: rs746132110
Type: single nucleotide variant
Location: chr3:149183560 (GRCh38)
Gene constraint: LOEUF 0.624 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure: AlphaFold pLDDT 93.79 · 4 PDB
Residue 777: a β-strand; the plastocyanin-like 5 domain

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

Disease context

aceruloplasminemia — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Aceruloplasminemia (Orphanet):

Inheritance: Autosomal recessive
Onset: Adult, Elderly
Prevalence: 1-9 / 1 000 000 (Japan)

Similar variants

CP c.1208+1G>A Pathogenic ★★ same condition
CP c.2879-1G>T Likely pathogenic ★★ same condition
CP p.Arg901Ter Pathogenic ★★ same condition
CP p.Gly195Arg Likely pathogenic ★★ same condition
CP p.Gly650Arg Pathogenic/Likely pathogenic ★★ same condition
CP p.Gly708Ser Pathogenic ★★ same condition
CP p.Leu919Pro Pathogenic/Likely pathogenic ★★ same condition
CP p.Val219Glu 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/cp-p-ser777 (accessed [today's date]).

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