Is SETD2 p.Ser1108= (c.3324A>G) pathogenic?

SETD2 p.Ser1108= (c.3324A>G) is classified Likely benign in SETD2 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2025-07-13). Ultra-rare (popmax 0.012%, afr); Associated with Luscan-Lumish syndrome.

What condition is associated with SETD2 p.Ser1108= (c.3324A>G)?

SETD2 p.Ser1108= (c.3324A>G) is associated with Luscan-Lumish syndrome (ClinVar).

How common is SETD2 p.Ser1108= (c.3324A>G) in the general population?

SETD2 p.Ser1108= (c.3324A>G) is ultra-rare (popmax 0.012%, afr) (gnomAD).

SETD2 p.Ser1108=

c.3324A>G · rs763701176 · VCV1111619

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Rare

ultra-rare (popmax 0.012%, afr)

Conditions

Luscan-Lumish syndrome

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP -0.61	GERP -0.022, phastCons 0.057
Overall
CADD	4.501	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.012% African / African-American · 9/74,932 alleles

Filtering AF 0.00623% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00467%

Overall 0.00093% 15/1,612,162 alleles · ultra-rare exomes 13/1,459,928 · genomes 2/152,234 · joint denominator

Ancestry group	Frequency	1 in
African / African-Americangrpmax	0.012%	8,326
European (non-Finnish)	0.000508%	196,667

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: SETD2
Protein: p.Ser1108=
Coding: c.3324A>G
MANE Select: NM_014159
dbSNP: rs763701176
Type: single nucleotide variant
Location: chr3:47121312 (GRCh38)
Gene constraint: LOEUF 0.176 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 43.81 · 43 PDB
Residue 1108: a UniProt-annotated variant site (in aml; uncertain significance; somatic mutation); a UniProt-annotated variant site (in all; uncertain significance; somatic mutation)

Full SETD2 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Luscan-Lumish syndrome — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Similar variants

SETD2 p.Arg1598Ter Pathogenic/Likely pathogenic ★★ same condition
SETD2 p.Arg1740Gln Pathogenic ★★ ⚠ same condition
SETD2 p.Arg1740Trp Pathogenic/Likely pathogenic ★★ same condition
SETD2 p.Ala1121Thr Uncertain significance ★★ ⚠ same condition
SETD2 p.Ala679Val Uncertain significance ★★ ⚠ same condition
SETD2 p.Arg1065Cys Uncertain significance ★★ same condition
SETD2 p.Arg329Gln Uncertain significance ★★ ⚠ same condition
SETD2 p.Arg368Gln 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/setd2-p-ser1108 (accessed [today's date]).

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