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TP53 p.Ser392fs

c.1174_1175del · VCV3649133

Uncertain significance Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
Consequence
frameshift
predicted LoF
gnomAD v4.1
Rare
Conditions
1
Li-Fraumeni syndrome

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequenceframeshiftpredicted loss-of-function in a haploinsufficient gene (ClinGen)
NMDescapespremature termination codon in the last exon (11 of 11) — the truncated protein is likely expressed. PVS1 input, not an applied code
Splicing
SpliceAI—not assessed · substitutions only
Constraint at this position
ConservationphyloP -1.3GERP -4.6, phastCons 0.001

Predicted loss-of-function is descriptive, not an applied PVS1 code.

Variant & gene context

Gene
TP53
Protein
p.Ser392fs
Coding
c.1174_1175del
MANE Select
NM_000546
Type
Deletion
Location
chr17:7669616 (GRCh38)
Gene constraint
LOEUF 0.449 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure
AlphaFold pLDDT 75.83 · 321 PDB
Residue 392
a UniProt-annotated variant site (in a sporadic cancer; somatic mutation); the 'interaction with carm1' region; the 'disordered' region; the 'interaction with morn3' region; a modified residue (phosphoserine; by ck2, cdk2 and nuak1)
Full TP53 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

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

For Li-Fraumeni syndrome (Orphanet):

Inheritance
Autosomal dominant
Onset
All ages
Prevalence
1-9 / 100 000 (United Kingdom)

Similar variants

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/tp53-p-ser392fs (accessed [today's date]).

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