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PRPF8 p.Pro1313=

c.3939G>A · rs35169383 · VCV321887

Benign Multiple submitters
Classification
Benign
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 4 submitters
gnomAD v4.1
Rare
low-frequency (popmax 4.19%, mid)
Conditions
2
retinitis pigmentosa

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
ConservationphyloP -0.71GERP -5.5
Overall
CADD7.128PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 4.19% Middle Eastern · 254/6,062 alleles
Filtering AF 3.82% ClinGen BA1/BS1 input FAF95, joint · FAF99 3.8%
Overall 3.43% 55,333/1,613,868 alleles · low-frequency exomes 51,173/1,461,884 · genomes 4,160/151,984 · joint denominator
Ancestry group Frequency 1 in
Ashkenazi Jewishnot grpmax-eligible 6.96% 14
Finnishnot grpmax-eligible 4.62% 22
Middle Easterngrpmax 4.19% 24
European (non-Finnish) 3.85% 26
Remaining individualsnot grpmax-eligible 3.37% 30
Admixed American 1.75% 57
South Asian 1.23% 81
African / African-American 0.543% 184
Amishnot grpmax-eligible 0.11% 912
East Asian 0.0111% 8,972

Ashkenazi Jewish shows a higher raw frequency than the grpmax group above it. gnomAD excludes bottlenecked groups — Finnish, Ashkenazi Jewish, Amish and “Remaining individuals” — from grpmax, because founder effects make their frequencies unrepresentative for filtering. The table is sorted by frequency, so an excluded group can sit above the grpmax row.

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
PRPF8
Protein
p.Pro1313=
Coding
c.3939G>A
MANE Select
NM_006445
dbSNP
rs35169383
Type
single nucleotide variant
Location
chr17:1661989 (GRCh38)
Gene constraint
LOEUF 0.26 · pLI 1.00 (gnomAD)
Structure
AlphaFold pLDDT 85.20 · 100 PDB
Residue 1313
the 'linker' region
Full PRPF8 gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

retinitis pigmentosa — disease report on Sugi Atlas → Associated genes, phenotypes, clinical trials & treatments

Also linked: inherited retinal dystrophy

For Retinitis pigmentosa (Orphanet):

Inheritance
Autosomal dominant, Autosomal recessive, Mitochondrial inheritance
Onset
Adolescent, Adult, Childhood
Prevalence
1-5 / 10 000 (Europe)

Similar variants

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/prpf8-p-pro1313 (accessed [today's date]).

Preprint & method: sugi.bio/variant/method Machine-readable: this page as Markdown