NBAS p.Lys673Ter
c.2017A>T · rs2528106278 · VCV2710019
Pathogenic
Single submitter
Classification
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. | ||
| Consequence | nonsense (stop-gain) | predicted loss-of-function |
|---|---|---|
| NMD | predicted | premature termination codon in exon 18 of 52 |
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
| Pangolin | Δ0.59 | loss · gain 0.07 · not in the SpliceAI release · independent |
| Constraint at this position | ||
| Conservation | phyloP 0.28 | GERP -3.1, phastCons 0.052 |
| Overall | ||
| CADD | 37.0 | PHRED · 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
- NBAS
- Protein
- p.Lys673Ter
- Coding
- c.2017A>T
- MANE Select
- NM_015909
- dbSNP
- rs2528106278
- Type
- single nucleotide variant
- Location
- chr2:15467665 (GRCh38)
- Gene constraint
- LOEUF 0.761 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
- Structure
- AlphaFold pLDDT 74.42
- Residue 673
- a UniProt-annotated variant site (in ilfs2; uncertain significance); a UniProt-annotated variant site (found in a patient with a multisystem disease involving liver, eye, immune system, connective tissue and bone; uncertain significance); the 'interaction with use1' region
Similar variants
- NBAS c.1726-2A>G Likely pathogenic ★★ same type
- NBAS c.173-2A>G Likely pathogenic ★★ same type
- NBAS c.209+2T>G Pathogenic/Likely pathogenic ★★ same type
- NBAS c.2423+404G>C Likely pathogenic ★★ same type
- NBAS c.335+1G>C Pathogenic/Likely pathogenic ★★ same type
- NBAS c.4461+2T>C Likely pathogenic ★★ same type
- NBAS c.4583-2A>G Likely pathogenic ★★ same type
- NBAS c.513+2T>C Pathogenic/Likely pathogenic ★★ same type
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/nbas-p-lys673ter (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown