PDE8B p.Ser754=
c.2262C>T · VCV4970832
Likely benign
Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00475%, nfe)
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 -10 | GERP -3.8 |
| Overall | ||
| CADD | 4.545 | PHRED · no single calibrated threshold — expert panels disagree |
Population frequency
gnomAD v4.1 · exomes + genomes
Grpmax group
0.00475%
European (non-Finnish) · 56/1,179,902 alleles
Filtering AF
0.00375%
ClinGen BA1/BS1 input
FAF95, joint · FAF99 0.00337%
Overall
0.00372%
60/1,613,826 alleles · very rare
exomes 53/1,461,664 · genomes 7/152,162 · joint denominator
| Ancestry group | Frequency | 1 in |
|---|---|---|
| European (non-Finnish)grpmax | 0.00475% | 21,070 |
| East Asian | 0.00223% | 44,892 |
| South Asian | 0.0022% | 45,513 |
| Remaining individualsnot grpmax-eligible | 0.0016% | 62,480 |
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
- PDE8B
- Protein
- p.Ser754=
- Coding
- c.2262C>T
- MANE Select
- NM_003719
- Type
- single nucleotide variant
- Location
- chr5:77421832 (GRCh38)
- Gene constraint
- LOEUF 0.351 · pLI 1.00 (gnomAD)
- Structure
- AlphaFold pLDDT 74.88
- Residue 754
- a modified residue (phosphoserine); the pdease domain
Similar variants
- PDE8B c.*498C>A Uncertain significance ★★ same type
- PDE8B p.Ala232Ser Uncertain significance ★★ ⚠ same type
- PDE8B p.Ala4Val Uncertain significance ★★ ⚠ same type
- PDE8B p.Ala65Pro Uncertain significance ★★ ⚠ same type
- PDE8B p.Ala70Ser Uncertain significance ★★ ⚠ same type
- PDE8B p.Ala86Thr Uncertain significance ★★ ⚠ same type
- PDE8B p.Arg237Lys Uncertain significance ★★ ⚠ same type
- PDE8B p.Arg483Trp 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/pde8b-p-ser754 (accessed [today's date]).
Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown