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MFF p.Pro54fs

c.159del · VCV4073431

Likely pathogenic No assertion criteria
Classification
Likely pathogenic
ClinVar
Review
No assertion criteria ☆☆☆☆
ClinVar · 1 submitter
Consequence
frameshift
predicted LoF
gnomAD v4.1
Rare
Conditions
1
encephalopathy due to defective mitochondrial and peroxisomal fission 2

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequenceframeshiftpredicted loss-of-function
NMDpredictedpremature termination codon in exon 3 of 9
Splicing
SpliceAI—not assessed · substitutions only
Constraint at this position
ConservationphyloP 9.9GERP 2.3, phastCons 1

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

Variant & gene context

Gene
MFF
Protein
p.Pro54fs
Coding
c.159del
MANE Select
NM_001277062
Type
Deletion
Location
chr2:227330823 (GRCh38)
Gene constraint
LOEUF 0.623 · pLI 0.65 (gnomAD)
Structure
AlphaFold pLDDT 64.74
Full MFF gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

encephalopathy due to defective mitochondrial and peroxisomal fission 2 — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

For Encephalopathy due to mitochondrial and peroxisomal fission defect (Orphanet):

Onset
Childhood, Infancy, Neonatal

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/mff-p-pro54fs (accessed [today's date]).

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