BLM c.3210+9del
Benign
Single submitter
Classification
Benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00122%, sas)
Conditions
1
Bloom syndrome
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| Splice region | donor +9 | near-intronic (+9 nt from the splice site) |
|---|---|---|
| SpliceAI | — | not assessed · substitutions only |
| Constraint at this position | ||
| Conservation | phyloP 6.1 | GERP 2.5, phastCons 1 |
| Non-coding constraint | Z 1.00 | 1 kb window · o/e 0.92 · regional · uncalibrated |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00122%
South Asian · 1/81,910 alleles
Overall
7.05e-05%
1/1,419,406 alleles · very rare
Rarity supports pathogenicity (ACMG PM2); frequency above a disease-specific BA1/BS1 threshold argues against it. A variant frequent in one ancestry group can be near-absent in others, so a single global figure can mislead.
Variant & gene context
- Gene
- BLM
- Coding
- c.3210+9del
- MANE Select
- NM_000057
- dbSNP
- rs1233313033
- Type
- Deletion
- Location
- chr15:90794360 (GRCh38)
- Gene constraint
- LOEUF 0.847 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
- Structure
- AlphaFold pLDDT 61.10 · 16 PDB
Disease context
Bloom syndrome — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatmentsFor Bloom syndrome (Orphanet):
- Inheritance
- Autosomal recessive
- Onset
- Antenatal, Neonatal
- Prevalence
- 1-9 / 100 000 (Specific population)
Similar variants
- BLM c.2193+1_2193+9del Pathogenic/Likely pathogenic ★★ same condition
- BLM c.3013_3019+4del Likely pathogenic ★★ same condition
- BLM c.3210+2del Pathogenic/Likely pathogenic ★★ same condition
- BLM c.99-8_112del Pathogenic/Likely pathogenic ★★ same condition
- BLM p.Arg545fs Pathogenic/Likely pathogenic ★★ same condition
- BLM p.Arg836fs Pathogenic ★★ same condition
- BLM p.Arg85fs Pathogenic/Likely pathogenic ★★ same condition
- BLM p.Asn448fs Pathogenic ★★ same condition
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/blm-c-3210-plus-9del (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown