LAMB1 p.Phe272=
c.816C>T · rs562088411 · VCV515709
Likely benign
Multiple submitters
Classification
Likely benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
gnomAD v4.1
Rare
rare (popmax 0.115%, mid)
Computational evidence
| Protein change | ||
| Missense predictors do not apply to this variant type; conservation carries the signal. | ||
| Splicing | ||
| SpliceAI | — | not assessed · no allele here is in the release |
|---|---|---|
| Constraint at this position | ||
| Conservation | phyloP 3.1 | GERP 0.7, phastCons 1 |
| Overall | ||
| CADD | 9.222 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.115%
Middle Eastern · 7/6,062 alleles
Filtering AF
0.0542%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.0384%
Overall
0.00558%
90/1,614,104 alleles · rare
exomes 80/1,461,814 · genomes 10/152,290 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| Middle Easterngrpmax | 0.115% | 866 |
| Admixed American | 0.0533% | 1,875 |
| Remaining individualsnot grpmax-eligible | 0.0144% | 6,946 |
| European (non-Finnish) | 0.00339% | 29,500 |
| Ashkenazi Jewishnot grpmax-eligible | 0.00338% | 29,602 |
| African / African-American | 0.00133% | 75,050 |
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
- LAMB1
- Protein
- p.Phe272=
- Coding
- c.816C>T
- MANE Select
- NM_002291
- dbSNP
- rs562088411
- Type
- single nucleotide variant
- Location
- chr7:107980672 (GRCh38)
- Gene constraint
- LOEUF 0.601 · pLI <0.01 (gnomAD)
- Structure
- AlphaFold pLDDT 76.99 · 3 PDB
- Residue 272
- the laminin egf-like 1 domain
Similar variants
- LAMB1 c.4188+1G>C Pathogenic/Likely pathogenic ★★ same type
- LAMB1 p.Arg397Ter Pathogenic ★★ same type
- LAMB1 p.Gln577Ter Pathogenic ★★ same type
- LAMB1 c.1985+5G>T Uncertain significance ★★ same type
- LAMB1 c.4746-3C>A Uncertain significance ★★ same type
- LAMB1 p.Ala1069Val Uncertain significance ★★ ⚠ same type
- LAMB1 p.Ala1239Thr Uncertain significance ★★ ⚠ same type
- LAMB1 p.Ala1331Gly Uncertain significance ★★ ⚠ 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/lamb1-p-phe272 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown