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CRIPT c.83-1G>A

rs746415991 · VCV2150415

Likely pathogenic Multiple submitters
Classification
Likely pathogenic
ClinVar
Review
Multiple submitters ★★☆☆
ClinVar · 2 submitters
Consequence
canonical splice-site (±1/±2)
predicted LoF
gnomAD v4.1
Rare
very rare (popmax 0.00315%, nfe)
Conditions
1
Fetal anomalies with a likely genetic cause

Computational evidence

Protein change
Missense predictors do not apply to this variant type; conservation/SpliceAI carries the signal.
Consequencecanonical splice-site (±1/±2)predicted loss-of-function
Splicing
Splice regionacceptor -1canonical splice dinucleotide (acceptor -1) · inside the BP7-excluded zone
SpliceAIΔ1.00acceptor loss, 1 bp away · masked 0 · deltas
PangolinΔ0.90loss · gain 0.24 · agrees with SpliceAI · independent
Constraint at this position
ConservationphyloP 9.9GERP 1.7, phastCons 1
Non-coding constraintZ 1.141 kb window · o/e 0.92 · regional · uncalibrated
Overall
CADD32.0PHRED · no single calibrated threshold — expert panels disagree

Predicted loss-of-function is descriptive, not an applied PVS1 code.

Population frequency

gnomAD v4.1 · exomes + genomes
Grpmax group 0.00315% European (non-Finnish) · 37/1,175,090 alleles
Filtering AF 0.00232% ClinGen BA1/BS1 input FAF95, joint · FAF99 0.00203%
Overall 0.00243% 39/1,607,078 alleles · very rare
Ancestry group Frequency 1 in
Remaining individualsnot grpmax-eligible 0.00322% 31,095
European (non-Finnish)grpmax 0.00315% 31,759

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
CRIPT
Coding
c.83-1G>A
MANE Select
NM_014171
dbSNP
rs746415991
Type
single nucleotide variant
Location
chr2:46619626 (GRCh38)
Gene constraint
LOEUF 1.852 · pLI 0.19 · ClinGen HI gene assoc. with recessive phenotype (gnomAD)
Structure
AlphaFold pLDDT 78.77 · 1 PDB
Full CRIPT gene report on Sugi Atlas → Gene function, pathways, protein structure, interactions & more

Disease context

Fetal anomalies with a likely genetic cause

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/cript-c-83-minus-1g-a (accessed [today's date]).

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