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ABCC6 p.Arg1268=

c.3804G>A · rs1026155579 · VCV2780405

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
ultra-rare (popmax 0.0107%, afr)

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
ConservationphyloP -0.38GERP -3
Overall
CADD8.274PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0107% African / African-American · 8/74,890 alleles
Filtering AF 0.00528% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00381%
Overall 0.000496% 8/1,613,866 alleles · ultra-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
ABCC6
Protein
p.Arg1268=
Coding
c.3804G>A
MANE Select
NM_001171
dbSNP
rs1026155579
Type
single nucleotide variant
Location
chr16:16157741 (GRCh38)
Gene constraint
LOEUF 0.917 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 81.32 · 4 PDB
Residue 1268
a UniProt-annotated variant site (associated with lower plasma triglycerides and higher plasma hdl cholesterol); a β-strand; the abc transporter 2 domain
Full ABCC6 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

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/abcc6-p-arg1268 (accessed [today's date]).

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