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COMP c.390+5G>T

VCV4535793

Uncertain significance Single submitter
Classification
Uncertain significance
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.000934%, nfe)

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation/SpliceAI carries the signal.
Splicing
Splice regiondonor +5donor splice region (+5, within the first 6 intronic nt) · inside the BP7-excluded zone
SpliceAIΔ0.22donor loss · deltas
PangolinΔ0.39loss · gain 0.00 · agrees with SpliceAI · independent
Constraint at this position
ConservationphyloP 4.8GERP 1.3, phastCons 1
Non-coding constraintZ 6.051 kb window · o/e 0.64 · regional · uncalibrated
Overall
CADD22.7PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.000934% European (non-Finnish) · 11/1,177,626 alleles
Filtering AF 0.000501% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000366%
Overall 0.000833% 12/1,440,264 alleles · very rare
Ancestry group Frequency 1 in
Remaining individualsnot grpmax-eligible 0.00162% 61,826
European (non-Finnish)grpmax 0.000934% 107,057

Remaining individuals 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
COMP
Coding
c.390+5G>T
MANE Select
NM_000095
Type
single nucleotide variant
Location
chr19:18789937 (GRCh38)
Gene constraint
LOEUF 1.073 · pLI <0.01 · ClinGen HI 0/3 (gnomAD)
Structure
AlphaFold pLDDT 88.60 · 1 PDB
Full COMP 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/comp-c-390-plus-5g-t (accessed [today's date]).

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