ALG6 c.902+67T>C
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
low-frequency (popmax 1.51%, afr)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| Splice region | donor +67 | deep intronic (+67 nt into the intron) |
|---|---|---|
| SpliceAI | — | not assessed · no allele here is in the release |
| Constraint at this position | ||
| Conservation | phyloP 0.025 | GERP -0.057 |
| Non-coding constraint | Z 1.02 | 1 kb window · o/e 0.93 · regional · uncalibrated |
| Overall | ||
| CADD | 13.61 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
1.51%
African / African-American · 1,002/66,506 alleles
Filtering AF
1.43%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 1.4%
Overall
0.0986%
1,202/1,218,716 alleles · low-frequency
| Ancestry group | Frequency | 1 in |
|---|---|---|
| African / African-Americangrpmax | 1.51% | 66 |
| Remaining individualsnot grpmax-eligible | 0.172% | 582 |
| Admixed American | 0.16% | 624 |
| Middle Eastern | 0.0218% | 4,578 |
| European (non-Finnish) | 0.00253% | 39,579 |
| South Asian | 0.0025% | 40,069 |
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
- ALG6
- Coding
- c.902+67T>C
- MANE Select
- NM_013339
- dbSNP
- rs116823416
- Type
- single nucleotide variant
- Location
- chr1:63414213 (GRCh38)
- Gene constraint
- LOEUF 0.892 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
- Structure
- AlphaFold pLDDT 93.08
Similar variants
- ALG6 c.1128-1G>A Likely pathogenic ★★ same type
- ALG6 c.1128-2A>C Likely pathogenic ★★ same type
- ALG6 c.1326+1G>A Pathogenic/Likely pathogenic ★★ same type
- ALG6 c.257+5G>A Pathogenic/Likely pathogenic ★★ same type
- ALG6 c.429+1G>T Likely pathogenic ★★ same type
- ALG6 c.495-2A>G Likely pathogenic ★★ same type
- ALG6 c.495-2A>T Likely pathogenic ★★ same type
- ALG6 c.680+1G>A 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/alg6-c-902-plus-67t-c (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown