Is SEC63 p.Ala626Ser (c.1876G>T) pathogenic?

SEC63 p.Ala626Ser (c.1876G>T) is classified Uncertain significance in SEC63 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-10-10). AlphaMissense: likely benign (0.2553); Absent from gnomAD v4.1; Associated with Inborn genetic diseases.

What condition is associated with SEC63 p.Ala626Ser (c.1876G>T)?

SEC63 p.Ala626Ser (c.1876G>T) is associated with Inborn genetic diseases (ClinVar).

How common is SEC63 p.Ala626Ser (c.1876G>T) in the general population?

SEC63 p.Ala626Ser (c.1876G>T) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about SEC63 p.Ala626Ser (c.1876G>T)?

AlphaMissense predicts likely benign (score 0.2553) — an in-silico prediction, not a clinical call.

SEC63 p.Ala626Ser

c.1876G>T · rs1374718065 · VCV3159399

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.2553 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

Inborn genetic diseases

Computational evidence

Protein change
AlphaMissense	0.2553	likely benign
REVEL	0.269	benign-leaning
SaProt	LLR -7.14	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	<0.2	no splice effect predicted · four deltas, not one · how we know
Constraint at this position
Conservation	phyloP 7.7	GERP 0.76, phastCons 1
Regional constraint	o/e 0.77	unconstrained · MANE · 37 kb · p 6.7e-08 · regional, not allelic
Overall
CADD	21.7	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: SEC63
Protein: p.Ala626Ser
Coding: c.1876G>T
MANE Select: NM_007214
dbSNP: rs1374718065
Type: single nucleotide variant
Location: chr6:107881208 (GRCh38)
Gene constraint: LOEUF 0.532 · pLI 0.91 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 77.71
Residue 626: a UniProt-annotated variant site (in pcld2)

Full SEC63 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

SEC63 p.Ala626Pro Uncertain significance ★ ⚠ same residue
SEC63 p.Ala626Val Uncertain significance ★ same residue
SEC63 p.Ala497Thr Uncertain significance ★★ ⚠ same condition
SEC63 p.Arg98Gln Uncertain significance ★★ ⚠ same condition
SEC63 p.Asn349Asp Uncertain significance ★★ ⚠ same condition
SEC63 p.His389Leu Uncertain significance ★★ same condition
SEC63 p.His717Arg Uncertain significance ★★ ⚠ same condition
SEC63 p.Leu191Pro 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/sec63-p-ala626ser (accessed [today's date]).

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