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B9D1 p.Pro92=

c.276A>C · rs996417216 · VCV1953863

Likely benign Single submitter
Classification
Likely benign
ClinVar
Review
Single submitter ★☆☆☆
ClinVar · 1 submitter
gnomAD v4.1
Rare
very rare (popmax 0.00167%, amr)
Conditions
2
Joubert syndrome

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 -10GERP -1.8
Overall
CADD4.323PHRED · no single calibrated threshold — expert panels disagree

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00167% Admixed American · 1/59,998 alleles
Overall 6.2e-05% 1/1,613,970 alleles · very rare exomes 0/1,461,824 · genomes 1/152,146 · joint denominator

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
B9D1
Protein
p.Pro92=
Coding
c.276A>C
MANE Select
NM_015681
dbSNP
rs996417216
Type
single nucleotide variant
Location
chr17:19347849 (GRCh38)
Gene constraint
LOEUF 1.023 · pLI <0.01 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure
AlphaFold pLDDT 83.05
Residue 92
the c2 b9-type domain
Full B9D1 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/b9d1-p-pro92 (accessed [today's date]).

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