Is AGPS p.Ser438= (c.1314T>C) pathogenic?

AGPS p.Ser438= (c.1314T>C) is classified Likely benign in AGPS (ClinVar, Single submitter, 2 submitters; last evaluated 2023-03-14). No allele count reported in gnomAD v4.1 (AN 1,582,892); Associated with rhizomelic chondrodysplasia punctata type 3.

What condition is associated with AGPS p.Ser438= (c.1314T>C)?

AGPS p.Ser438= (c.1314T>C) is associated with rhizomelic chondrodysplasia punctata type 3 (ClinVar).

How common is AGPS p.Ser438= (c.1314T>C) in the general population?

AGPS p.Ser438= (c.1314T>C) is no allele count reported in gnomAD v4.1 (AN 1,582,892) (gnomAD).

How is Rhizomelic chondrodysplasia punctata inherited?

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

AGPS p.Ser438=

c.1314T>C · rs2105709922 · VCV1116250

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 2 submitters

gnomAD v4.1

Not reported

no allele count reported in gnomAD v4.1 (AN 1,582,892)

Conditions

rhizomelic chondrodysplasia punctata type 3

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	<0.2	no splice effect predicted · four deltas, not one · how we know
Constraint at this position
Conservation	phyloP 4.2	GERP 1.8, phastCons 1
Overall
CADD	10.88	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

No allele count reported in gnomAD v4.1 (AN 1,582,892). This is missing data, not an absence: the variant may or may not be present in gnomAD. Rarity (ACMG PM2) and BA1/BS1 cannot be assessed for it.

Variant & gene context

Gene: AGPS
Protein: p.Ser438=
Coding: c.1314T>C
MANE Select: NM_003659
dbSNP: rs2105709922
Type: single nucleotide variant
Location: chr2:177497717 (GRCh38)
Gene constraint: LOEUF 0.408 · pLI 1.00 (gnomAD)
Structure: AlphaFold pLDDT 89.27

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

Disease context

rhizomelic chondrodysplasia punctata type 3 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Rhizomelic chondrodysplasia punctata (Orphanet):

Inheritance: Autosomal recessive
Onset: Antenatal, Neonatal
Prevalence: 1-9 / 1 000 000 (Europe)

Similar variants

AGPS p.Arg182Ter Pathogenic/Likely pathogenic ★★ same condition
AGPS p.Thr309Ile Likely pathogenic ★★ same condition
AGPS c.1855+6C>A Uncertain significance ★★ same condition
AGPS c.*118A>G Uncertain significance ★★ same condition
AGPS p.Asp28Val Uncertain significance ★★ ⚠ same condition
AGPS p.Pro415Leu Uncertain significance ★★ ⚠ same condition
AGPS p.Thr72Ala Uncertain significance ★★ ⚠ same condition
AGPS c.1233+14T>A Benign/Likely benign ★★ 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/agps-p-ser438 (accessed [today's date]).

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