Is SETD5 p.Arg308Ter (c.922C>T) pathogenic?

SETD5 p.Arg308Ter (c.922C>T) is classified Pathogenic/Likely pathogenic in SETD5 (ClinVar, Multiple submitters, 8 submitters; last evaluated 2025-10-09). Very rare (popmax 8.48e-05%, nfe); Associated with Inborn genetic diseases.

What condition is associated with SETD5 p.Arg308Ter (c.922C>T)?

SETD5 p.Arg308Ter (c.922C>T) is associated with Inborn genetic diseases, intellectual disability-facial dysmorphism syndrome due to SETD5 haploinsufficiency (ClinVar).

How common is SETD5 p.Arg308Ter (c.922C>T) in the general population?

SETD5 p.Arg308Ter (c.922C>T) is very rare (popmax 8.48e-05%, nfe) (gnomAD).

SETD5 p.Arg308Ter

c.922C>T · rs1421204500 · VCV620169

Pathogenic/Likely pathogenic Multiple submitters

Classification

Pathogenic/Likely pathogenic

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 8 submitters

Consequence

nonsense (stop-gain)

predicted LoF

gnomAD v4.1

Rare

very rare (popmax 8.48e-05%, nfe)

Conditions

Inborn genetic diseases

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 in a haploinsufficient gene (ClinGen)
NMD	predicted	premature termination codon in exon 9 of 23
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Pangolin	Δ0.22	loss · gain 0.01 · not in the SpliceAI release · independent
Constraint at this position
Conservation	phyloP 6	GERP 2, phastCons 1
Overall
CADD	38.0	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 8.48e-05% European (non-Finnish) · 1/1,179,856 alleles

Overall 6.2e-05% 1/1,613,922 alleles · very rare exomes 1/1,461,668 · genomes 0/152,254 · joint denominator

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: SETD5
Protein: p.Arg308Ter
Coding: c.922C>T
MANE Select: NM_001080517
dbSNP: rs1421204500
Type: single nucleotide variant
Location: chr3:9441704 (GRCh38)
Gene constraint: LOEUF 0.376 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 47.10
Residue 308: the set domain

Full SETD5 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

Also linked: intellectual disability-facial dysmorphism syndrome due to SETD5 haploinsufficiency

Similar variants

SETD5 c.1441-1G>A Pathogenic ★★ same condition
SETD5 c.1525-1G>C Pathogenic/Likely pathogenic ★★ same condition
SETD5 c.2347-7A>G Pathogenic ★★ same condition
SETD5 c.3631+1G>A Pathogenic ★★ same condition
SETD5 c.960-5C>G Pathogenic/Likely pathogenic ★★ same condition
SETD5 p.Arg1001Ter Pathogenic ★★ same condition
SETD5 p.Arg1072Ter Pathogenic/Likely pathogenic ★★ same condition
SETD5 p.Arg1121Ter 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/setd5-p-arg308ter (accessed [today's date]).

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