Is DCT p.Trp469Ter (c.1407G>A) pathogenic?

DCT p.Trp469Ter (c.1407G>A) is classified Pathogenic in DCT (ClinVar, No assertion criteria, 1 submitter; last evaluated 2021-09-17). Very rare (popmax 0.00695%, nfe); Associated with oculocutaneous albinism type 8.

What condition is associated with DCT p.Trp469Ter (c.1407G>A)?

DCT p.Trp469Ter (c.1407G>A) is associated with oculocutaneous albinism type 8 (ClinVar).

How common is DCT p.Trp469Ter (c.1407G>A) in the general population?

DCT p.Trp469Ter (c.1407G>A) is very rare (popmax 0.00695%, nfe) (gnomAD).

How is Oculocutaneous albinism type 8 inherited?

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

DCT p.Trp469Ter

c.1407G>A · rs764655568 · VCV1268232

Pathogenic No assertion criteria

Classification

Pathogenic

ClinVar

Review

No assertion criteria ☆☆☆☆

ClinVar · 1 submitter

Consequence

nonsense (stop-gain)

predicted LoF

gnomAD v4.1

Rare

very rare (popmax 0.00695%, nfe)

Conditions

oculocutaneous albinism type 8

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequence	nonsense (stop-gain)	predicted loss-of-function
NMD	escapes	premature termination codon in the last exon (8 of 8) — the truncated protein is likely expressed. PVS1 input, not an applied code
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 3.3	GERP 2.1, phastCons 1
Overall
CADD	36.0	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 0.00695% European (non-Finnish) · 82/1,179,890 alleles

Filtering AF 0.00571% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00525%

Overall 0.00514% 83/1,613,724 alleles · very rare

Ancestry group	Frequency	1 in
European (non-Finnish)grpmax	0.00695%	14,389
South Asian	0.0011%	91,042

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.Trp469Ter
Coding: c.1407G>A
MANE Select: NM_001922
dbSNP: rs764655568
Type: single nucleotide variant
Location: chr13:94440051 (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

oculocutaneous albinism type 8 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Oculocutaneous albinism type 8 (Orphanet):

Inheritance: Autosomal recessive
Onset: Childhood
Prevalence: <1 / 1 000 000 (Worldwide)

Similar variants

DCT p.Arg233Ter Pathogenic/Likely pathogenic ★★ same condition
DCT p.Arg326Ter Pathogenic ★ same condition
DCT p.Trp71Ter Pathogenic ★ same condition
DCT p.Gly213Glu Uncertain significance ★ ⚠ same condition
DCT p.Ser34Arg Uncertain significance ★ ⚠ same condition
DCT p.Val285Leu Likely benign ★ ⚠ same condition
DCT p.Cys40Ser Pathogenic/Likely pathogenic same condition
DCT p.Cys61Trp 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/dct-p-trp469ter (accessed [today's date]).

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