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HELLS p.Phe670fs

c.2007dup · VCV3347608

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
HELLS-related disorder

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 18 of 22
Splicing
SpliceAI—not assessed · substitutions only
Constraint at this position
ConservationphyloP 7.9GERP 1.9, phastCons 1

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

Variant & gene context

Gene
HELLS
Protein
p.Phe670fs
Coding
c.2007dup
MANE Select
NM_018063
Type
Duplication
Location
chr10:94593533 (GRCh38)
Gene constraint
LOEUF 0.587 · pLI 0.63 (gnomAD)
Structure
AlphaFold pLDDT 68.76 · 4 PDB
Residue 670
the helicase c-terminal domain
Full HELLS gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

HELLS-related disorder

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/hells-p-phe670fs (accessed [today's date]).

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