Is SETD1A p.Pro35Ser (c.103C>T) pathogenic?

SETD1A p.Pro35Ser (c.103C>T) is classified Likely benign in SETD1A (ClinVar, Single submitter, 1 submitter; last evaluated 2024-01-01). AlphaMissense: likely benign (0.2043); Very rare (popmax 0.00178%, nfe).

How common is SETD1A p.Pro35Ser (c.103C>T) in the general population?

SETD1A p.Pro35Ser (c.103C>T) is very rare (popmax 0.00178%, nfe) (gnomAD).

What do computational predictors say about SETD1A p.Pro35Ser (c.103C>T)?

AlphaMissense predicts likely benign (score 0.2043) — an in-silico prediction, not a clinical call.

SETD1A p.Pro35Ser

c.103C>T · rs747917060 · VCV3025831

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.2043 · ACMG-weighted

gnomAD v4.1

Rare

very rare (popmax 0.00178%, nfe)

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Computational evidence

Protein change
AlphaMissense	0.2043	likely benign
REVEL	0.249	benign-leaning
SaProt	LLR -5.44	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 5.9	GERP 1.8, phastCons 1
Regional constraint	o/e 0.79	unconstrained · MANE · 432 bp · p 0.038 · regional, not allelic
Overall
CADD	22.2	PHRED · no single calibrated threshold — expert panels disagree

AlphaMissense carries the ACMG weight for missense; REVEL and SaProt are independent agreement signals.

Population frequency

gnomAD v4.1 · exomes + genomes

Grpmax group 0.00178% European (non-Finnish) · 21/1,179,994 alleles

Filtering AF 0.00114% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000971%

Overall 0.00143% 23/1,614,026 alleles · very rare exomes 22/1,461,834 · genomes 1/152,192 · joint denominator

Ancestry group	Frequency	1 in
European (non-Finnish)grpmax	0.00178%	56,190
Admixed American	0.00167%	60,004
African / African-American	0.00133%	74,922

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: SETD1A
Protein: p.Pro35Ser
Coding: c.103C>T
MANE Select: NM_014712
dbSNP: rs747917060
Type: single nucleotide variant
Location: chr16:30958834 (GRCh38)
Gene constraint: LOEUF 0.279 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure: AlphaFold pLDDT 49.20 · 4 PDB

Full SETD1A gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Similar variants

SETD1A p.Pro35Leu Uncertain significance ★ ⚠ same residue
SETD1A c.518-2A>G Pathogenic ★★ same type
SETD1A p.Arg1571Ter Pathogenic/Likely pathogenic ★★ same type
SETD1A p.Arg176Ter Pathogenic/Likely pathogenic ★★ same type
SETD1A p.Arg668Ter Pathogenic ★★ same type
SETD1A p.Arg913Cys Likely pathogenic ★★ ⚠ same type
SETD1A p.Arg990Ter Pathogenic/Likely pathogenic ★★ same type
SETD1A p.Tyr646Ter Pathogenic ★★ same type

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/setd1a-p-pro35ser (accessed [today's date]).

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