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THBD p.Pro333=

c.999C>T · rs763279592 · VCV1662407

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.005%, amr)

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 2.1GERP 0.42, phastCons 0.99
Overall
CADD7.442PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.005% Admixed American · 3/60,026 alleles
Filtering AF 0.00133% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.000668%
Overall 0.000249% 4/1,607,332 alleles · very rare exomes 4/1,454,978 · genomes 0/152,354 · joint denominator
Ancestry group Frequency 1 in
Admixed Americangrpmax 0.005% 20,009
Remaining individualsnot grpmax-eligible 0.0016% 62,466

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
THBD
Protein
p.Pro333=
Coding
c.999C>T
MANE Select
NM_000361
dbSNP
rs763279592
Type
single nucleotide variant
Location
chr20:23048506 (GRCh38)
Gene constraint
LOEUF 1.938 · pLI 0.05 (gnomAD)
Structure
AlphaFold pLDDT 79.35 · 13 PDB
Residue 333
the egf-like 3; calcium-binding domain
Full THBD 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/thbd-p-pro333 (accessed [today's date]).

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