Is CSF3R p.Gln346Pro (c.1037A>C) pathogenic?

CSF3R p.Gln346Pro (c.1037A>C) is classified Uncertain significance in CSF3R (ClinVar, Single submitter, 1 submitter; last evaluated 2024-07-26). AlphaMissense: likely benign (0.0636); Absent from gnomAD v4.1; Associated with autosomal recessive severe congenital neutropenia due to CSF3R deficiency.

What condition is associated with CSF3R p.Gln346Pro (c.1037A>C)?

CSF3R p.Gln346Pro (c.1037A>C) is associated with autosomal recessive severe congenital neutropenia due to CSF3R deficiency (ClinVar).

How common is CSF3R p.Gln346Pro (c.1037A>C) in the general population?

CSF3R p.Gln346Pro (c.1037A>C) is absent from gnomAD v4.1 (gnomAD).

What do computational predictors say about CSF3R p.Gln346Pro (c.1037A>C)?

AlphaMissense predicts likely benign (score 0.0636) — an in-silico prediction, not a clinical call.

CSF3R p.Gln346Pro

Q: How is Autosomal recessive severe congenital neutropenia due to CSF3R deficiency inherited?

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

c.1037A>C · rs3917974 · VCV1383570

Uncertain significance Single submitter

Classification

Uncertain significance

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

AlphaMissense

likely benign

0.0636 · ACMG-weighted

gnomAD v4.1

Absent

absent from gnomAD v4.1

Missense predictors

0/3 damaging

AlphaMissense, REVEL, SaProt

Conditions

autosomal recessive severe congenital neutropenia due to CSF3R deficiency

Computational evidence

Protein change
AlphaMissense	0.0636	likely benign
REVEL	0.034	moderately benign-leaning
SaProt	LLR -3.47	tolerated
⇒ AlphaMissense, REVEL and SaProt all call this tolerated.
Splicing
SpliceAI	—	not assessed · no allele here is in the release
Constraint at this position
Conservation	phyloP 1.2	GERP -0.59, phastCons 0.17
Regional constraint	o/e 0.84	unconstrained · MANE · 13 kb · p 3.4e-07 · regional, not allelic
Overall
CADD	8.076	PHRED · no single calibrated threshold — expert panels disagree

ClinVar classifies this uncertain; the computational predictors unanimously lean tolerated — a triage signal, not a reclassification

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

Population frequency

gnomAD v4.1 · exomes + genomes

Absent from gnomAD v4.1. Not observed in any sequenced alleles — a rarity signal (ACMG PM2-supporting), not evidence of pathogenicity on its own.

Variant & gene context

Gene: CSF3R
Protein: p.Gln346Pro
Coding: c.1037A>C
MANE Select: NM_000760
dbSNP: rs3917974
Type: single nucleotide variant
Location: chr1:36472100 (GRCh38)
Gene constraint: LOEUF 0.726 · pLI <0.01 (gnomAD)
Structure: AlphaFold pLDDT 74.29 · 1 PDB
Residue 346: a UniProt-annotated variant site (in); the fibronectin type-iii 3 domain

Full CSF3R gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

autosomal recessive severe congenital neutropenia due to CSF3R deficiency — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Autosomal recessive severe congenital neutropenia due to CSF3R deficiency (Orphanet):

Inheritance: Autosomal recessive
Onset: Infancy, Neonatal

Similar variants

CSF3R p.Gln346Arg Benign/Likely benign ★★ same residue
CSF3R c.1072-1G>A Pathogenic/Likely pathogenic ★★ same condition
CSF3R c.843+2T>C Pathogenic/Likely pathogenic ★★ same condition
CSF3R c.998-2A>T Likely pathogenic ★★ same condition
CSF3R p.Arg308Cys Pathogenic/Likely pathogenic ★★ ⚠ same condition
CSF3R p.Arg440Ter Pathogenic ★★ same condition
CSF3R p.Gln114Ter Pathogenic/Likely pathogenic ★★ same condition
CSF3R p.Thr618Ile Pathogenic/Likely 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/csf3r-p-gln346pro (accessed [today's date]).

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