Is DCT p.Cys286Arg (c.856T>C) pathogenic?

DCT p.Cys286Arg (c.856T>C) is classified Uncertain significance in DCT (ClinVar, Single submitter, 1 submitter; last evaluated 2023-06-02). AlphaMissense: likely pathogenic (0.9801); Very rare (popmax 0.00401%, afr); Associated with Inborn genetic diseases.

What condition is associated with DCT p.Cys286Arg (c.856T>C)?

DCT p.Cys286Arg (c.856T>C) is associated with Inborn genetic diseases (ClinVar).

How common is DCT p.Cys286Arg (c.856T>C) in the general population?

DCT p.Cys286Arg (c.856T>C) is very rare (popmax 0.00401%, afr) (gnomAD).

What do computational predictors say about DCT p.Cys286Arg (c.856T>C)?

AlphaMissense predicts likely pathogenic (score 0.9801) — an in-silico prediction, not a clinical call.

DCT p.Cys286Arg

c.856T>C · rs150712681 · VCV2555726

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely pathogenic

0.9801 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00401%, afr)

Missense predictors

2/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.9801	likely pathogenic · top 1% in DCT
REVEL	0.918	moderately pathogenic-leaning
SaProt	LLR -8.21	tolerated
⇒ AlphaMissense and REVEL call this damaging; SaProt does not.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 11	GERP 2.7, phastCons 1
Regional constraint	o/e 1.05	unconstrained · MANE · 39 kb · p 0.21 · regional, not allelic
Overall
CADD	27.8	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00401% African / African-American · 3/74,846 alleles

Filtering AF 0.00106% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000495%

Overall 0.000372% 6/1,613,344 alleles · very rare

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.00401%	24,949
European (non-Finnish)	0.000254%	393,238

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: DCT
Protein: p.Cys286Arg
Coding: c.856T>C
MANE Select: NM_001922
dbSNP: rs150712681
Type: single nucleotide variant
Location: chr13:94465640 (GRCh38)
Gene constraint: LOEUF 1.101 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 89.33 · 1 PDB

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

Disease context

Inborn genetic diseases — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

DCT c.1180-2098C>T Uncertain significance ★ same condition
DCT c.1180-2111A>G Uncertain significance ★ same condition
DCT p.Ala144Thr Uncertain significance ★ ⚠ same condition
DCT p.Ala206Thr Uncertain significance ★ ⚠ same condition
DCT p.Ala357Glu Uncertain significance ★ ⚠ same condition
DCT p.Ala381Thr Uncertain significance ★ ⚠ same condition
DCT p.Ala386Thr Uncertain significance ★ ⚠ same condition
DCT p.Arg202Cys Uncertain significance ★ ⚠ 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/dct-p-cys286arg (accessed [today's date]).

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