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TRPS1 p.Arg996=

c.2988G>A · rs202158991 · VCV593383

Conflicting classifications of pathogenicity Conflicting submitters
Classification
Conflicting classifications of pathogenicity
ClinVar
Review
Conflicting submitters ★☆☆☆
ClinVar · 3 submitters
gnomAD v4.1
Rare
ultra-rare (popmax 0.0354%, amr)
Conditions
2
Trichorhinophalangeal syndrome, type III

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation carries the signal.
REVEL0.131moderately benign-leaning
Splicing
SpliceAI—not assessed · no allele here is in the release
Constraint at this position
ConservationphyloP 2.8GERP 1.9, phastCons 1
Overall
CADD9.251PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.0354% Admixed American · 21/59,282 alleles
Filtering AF 0.0237% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.0199%
Overall 0.0018% 29/1,607,198 alleles · ultra-rare exomes 13/1,455,116 · genomes 16/152,082 · joint denominator
Ancestry group Frequency 1 in
Admixed Americangrpmax 0.0354% 2,823
Remaining individualsnot grpmax-eligible 0.0129% 7,773

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
TRPS1
Protein
p.Arg996=
Coding
c.2988G>A
MANE Select
NM_014112
dbSNP
rs202158991
Type
single nucleotide variant
Location
chr8:115414920 (GRCh38)
Gene constraint
LOEUF 0.114 · pLI 1.00 · ClinGen HI 3/3 (gnomAD)
Structure
AlphaFold pLDDT 49.12
Residue 996
the 'disordered' region; the 'mediates interaction with rnf4' region
Full TRPS1 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/trps1-p-arg996 (accessed [today's date]).

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