Is FBP1 p.Ser211= (c.633C>T) pathogenic?

FBP1 p.Ser211= (c.633C>T) is classified Likely benign in FBP1 (ClinVar, Single submitter, 1 submitter; last evaluated 2023-01-28). Absent from gnomAD v4.1; Associated with fructose-1,6-bisphosphatase deficiency.

What condition is associated with FBP1 p.Ser211= (c.633C>T)?

FBP1 p.Ser211= (c.633C>T) is associated with fructose-1,6-bisphosphatase deficiency (ClinVar).

How common is FBP1 p.Ser211= (c.633C>T) in the general population?

FBP1 p.Ser211= (c.633C>T) is absent from gnomAD v4.1 (gnomAD).

How is Fructose-1,6-bisphosphatase deficiency inherited?

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

FBP1 p.Ser211=

c.633C>T · rs1176674095 · VCV2826430

Likely benign Single submitter

Classification

Likely benign

ClinVar

Review

Single submitter ★☆☆☆

ClinVar · 1 submitter

gnomAD v4.1

Absent

absent from gnomAD v4.1

Conditions

fructose-1,6-bisphosphatase deficiency

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 2.1	GERP -3.1, phastCons 1
Overall
CADD	10.81	PHRED · no single calibrated threshold — expert panels disagree

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: FBP1
Protein: p.Ser211=
Coding: c.633C>T
MANE Select: NM_000507
dbSNP: rs1176674095
Type: single nucleotide variant
Location: chr9:94606887 (GRCh38)
Gene constraint: LOEUF 1.156 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure: AlphaFold pLDDT 94.46 · 51 PDB
Residue 211: a β-strand

Full FBP1 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

fructose-1,6-bisphosphatase deficiency — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Fructose-1,6-bisphosphatase deficiency (Orphanet):

Inheritance: Autosomal recessive
Onset: All ages
Prevalence: 1-9 / 1 000 000 (Italy)

Similar variants

FBP1 p.Ser211Asn Uncertain significance ★ ⚠ same residue
FBP1 p.Ser211Thr Uncertain significance ★ ⚠ same residue
FBP1 c.426+1G>A Pathogenic ★★ same condition
FBP1 c.427-2A>G Likely pathogenic ★★ same condition
FBP1 p.Arg158Trp Pathogenic ★★ same condition
FBP1 p.Asp119Asn Pathogenic/Likely pathogenic ★★ same condition
FBP1 p.Glu281Lys Pathogenic/Likely pathogenic ★★ same condition
FBP1 p.Glu281Ter 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/fbp1-p-ser211 (accessed [today's date]).

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