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ELN p.Tyr677Ter

c.2031C>G · rs1554688700 · VCV451699

Likely pathogenic Single submitter
Classification
Likely pathogenic
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
Consequence
nonsense (stop-gain)
predicted LoF
gnomAD v4.1
Absent
absent from gnomAD v4.1

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Consequencenonsense (stop-gain)predicted loss-of-function in a haploinsufficient gene (ClinGen)
NMDpredictedpremature termination codon in exon 30 of 33
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP -9.5GERP -6.2
Overall
CADD32.0PHRED · no single calibrated threshold — expert panels disagree

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

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
ELN
Protein
p.Tyr677Ter
Coding
c.2031C>G
MANE Select
NM_000501
dbSNP
rs1554688700
Type
single nucleotide variant
Location
chr7:74065731 (GRCh38)
Gene constraint
LOEUF 0.696 · pLI <0.01 · ClinGen HI 3/3 (gnomAD)
Structure
AlphaFold pLDDT 36.20
Residue 677
a modified residue (4-hydroxyproline; partial)
Full ELN gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

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/eln-p-tyr677ter (accessed [today's date]).

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