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PLTP p.Val448=

c.1344G>C · rs139710284 · VCV1636906

Benign Single submitter
Classification
Benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
rare (popmax 0.616%, sas)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
Splicing
SpliceAI<0.2all four deltas below 0.2 · C>T here scores Δ0.66 · evaluated, not missing
Constraint at this position
ConservationphyloP 1.7GERP -0.21, phastCons 1
Overall
CADD4.194PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.616% South Asian · 561/91,082 alleles
Filtering AF 0.574% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.557%
Overall 0.172% 2,783/1,614,104 alleles · rare exomes 2,544/1,461,876 · genomes 239/152,228 · joint denominator
Ancestry group Frequency 1 in
South Asiangrpmax 0.616% 162
Finnishnot grpmax-eligible 0.55% 182
Middle Eastern 0.511% 196
Remaining individualsnot grpmax-eligible 0.178% 563
European (non-Finnish) 0.143% 699
Admixed American 0.0566% 1,765
African / African-American 0.008% 12,501
Ashkenazi Jewishnot grpmax-eligible 0.00338% 29,604

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
PLTP
Protein
p.Val448=
Coding
c.1344G>C
MANE Select
NM_006227
dbSNP
rs139710284
Type
single nucleotide variant
Location
chr20:45899477 (GRCh38)
Gene constraint
LOEUF 1.002 · pLI <0.01 (gnomAD)
Structure
AlphaFold pLDDT 89.36
Full PLTP gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

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/pltp-p-val448 (accessed [today's date]).

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