Is SETD2 p.Ser638= (c.1914C>T) pathogenic?

SETD2 p.Ser638= (c.1914C>T) is classified Likely benign in SETD2 (ClinVar, Multiple submitters, 2 submitters; last evaluated 2024-12-02). Ultra-rare (popmax 0.0165%, mid); Associated with Luscan-Lumish syndrome.

What condition is associated with SETD2 p.Ser638= (c.1914C>T)?

SETD2 p.Ser638= (c.1914C>T) is associated with Luscan-Lumish syndrome (ClinVar).

How common is SETD2 p.Ser638= (c.1914C>T) in the general population?

SETD2 p.Ser638= (c.1914C>T) is ultra-rare (popmax 0.0165%, mid) (gnomAD).

SETD2 p.Ser638=

c.1914C>T · rs1371836213 · VCV732274

Likely benign Multiple submitters

Classification

Likely benign

ClinVar

Review

Multiple submitters ★★☆☆

ClinVar · 2 submitters

gnomAD v4.1

Rare

ultra-rare (popmax 0.0165%, mid)

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 4.9	GERP -0.17, phastCons 1
Overall
CADD	10.82	PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.0165% Middle Eastern · 1/6,066 alleles

Filtering AF 0.00134% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000718%

Overall 0.00161% 26/1,610,608 alleles · ultra-rare exomes 22/1,458,620 · genomes 4/151,988 · joint denominator

Ancestry group	Frequency	1 in
Middle Easterngrpmax	0.0165%	6,066
Admixed American	0.00506%	19,777
Remaining individualsnot grpmax-eligible	0.00321%	31,142
East Asian	0.00223%	44,860
European (non-Finnish)	0.00144%	69,341
African / African-American	0.00134%	74,560
South Asian	0.0011%	90,642

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.Ser638=
Coding: c.1914C>T
MANE Select: NM_014159
dbSNP: rs1371836213
Type: single nucleotide variant
Location: chr3:47122722 (GRCh38)
Gene constraint: LOEUF 0.176 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 43.81 · 43 PDB
Residue 638: a UniProt-annotated variant site (in aml; 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.Ser638Ala Uncertain significance ★ ⚠ same residue
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

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-ser638 (accessed [today's date]).

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