Is DPYD p.Ser577Ala (c.1729T>G) pathogenic?

DPYD p.Ser577Ala (c.1729T>G) is classified Uncertain significance in DPYD (ClinVar, Single submitter, 1 submitter; last evaluated 2023-02-17). AlphaMissense: likely benign (0.0785); Absent from gnomAD v4.1; Associated with Inborn genetic diseases.

What condition is associated with DPYD p.Ser577Ala (c.1729T>G)?

DPYD p.Ser577Ala (c.1729T>G) is associated with Inborn genetic diseases (ClinVar).

How common is DPYD p.Ser577Ala (c.1729T>G) in the general population?

DPYD p.Ser577Ala (c.1729T>G) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about DPYD p.Ser577Ala (c.1729T>G)?

AlphaMissense predicts likely benign (score 0.0785) — an in-silico prediction, not a clinical call.

DPYD p.Ser577Ala

c.1729T>G · rs2524204644 · VCV2486730

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0785 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/2 damaging

AlphaMissense, SaProt · REVEL no call

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.0785	likely benign
REVEL	0.398	indeterminate
SaProt	LLR -7.20	tolerated
⇒ AlphaMissense and SaProt both call this tolerated; REVEL makes no call.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 8	GERP 2.1, phastCons 1
Regional constraint	o/e 1.04	unconstrained · MANE · 842 kb · p 0.18 · regional, not allelic
Overall
CADD	19.26	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

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

Population frequency

gnomAD v4.1 · exomes + genomes

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: DPYD
Protein: p.Ser577Ala
Coding: c.1729T>G
MANE Select: NM_000110
dbSNP: rs2524204644
Type: single nucleotide variant
Location: chr1:97515737 (GRCh38)
Gene constraint: LOEUF 1.09 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure: AlphaFold pLDDT 96.23

Full DPYD 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

DPYD p.Ala513Val Uncertain significance ★★ ⚠ same condition
DPYD p.Ala664Ser Uncertain significance ★★ ⚠ same condition
DPYD p.Arg332Gln Uncertain significance ★★ ⚠ same condition
DPYD p.Arg410Gln Uncertain significance ★★ ⚠ same condition
DPYD p.Arg692Gln Uncertain significance ★★ ⚠ same condition
DPYD p.Gln508= Uncertain significance ★★ same condition
DPYD p.Glu13Lys Uncertain significance ★★ same condition
DPYD p.Glu950Lys 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/dpyd-p-ser577ala (accessed [today's date]).

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