ARIANE

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Automated ACMG Rule-based Interpretation and Annotation ENgine

BRCA1/2 variant classification following ENIGMA VCEP v1.2

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Reference transcript: . ARIANE derives and verifies canonical c. and three-letter p. HGVS locally. Genome assembly is not needed for c. HGVS. Select GRCh37 or GRCh38 for the genomic coordinate.

Select Confirmed tandem only when supported by laboratory data. Otherwise keep Unknown.

Reference transcript:

Submitted as:

Why is the protein consequence unknown?

Total points:

Calibrated functional evidence available in ENIGMA Table 9

Mixed evidence. Pathogenic and benign evidence co-occur. ENIGMA v1.2 second classification approach, using Tavtigian 2020 points, was applied. Expert review required. ENIGMA v1.2, Classification Methods, second approach

Applied criteria

Criterion Strength Points Reason
Not applicable to this variant () Show codes and reasons

These outcomes were explicitly marked as not applicable by the variant-specific ENIGMA decision path. Criteria that were not met, unavailable, or excluded are not included here.

Open official VCEP specification

Criteria excluded by an ENIGMA exception

The numerical threshold was met, but the criterion was not applied and added no points.

Criterion Threshold strength Points Why it was not applied

AlphaMissense (informational only - not included in ENIGMA VCEP scoring)

Suggested review:

ARIANE review triage: priority

Why it was flagged

What RNA evidence should document

Potential ENIGMA branches:

Open ENIGMA specification

Why it was flagged

What to check

Potential ENIGMA branch:

Reference source:

Open ENIGMA specification

Next step: ARIANE has prefilled the Protein PS1 manual review and is checking ClinVar and ClinGen for an official ENIGMA VCEP assertion. Review the remaining unconfirmed fields before submitting manual evidence.

Why it was flagged

What to check

Reference candidateClassStatusSource

RNA/splice sources checked for the assessed variant:

Open ENIGMA specification

Why it was flagged

What to check

Potential ENIGMA branch:

Reference source:

Open ENIGMA specification

Evidence details

Variant normalization
Method
Engine
Engine version
Provider
cdot data release
Reference bundle
Reference manifest checksum
PP4/BP5 clinical likelihood ratios

Source label and VCEP threshold result differ

Source combination: . Published combined LR: .

Assessment sources:

ENIGMA data release
LR used for classification
LR data status
Published combined LR
Source track label
VCEP threshold result
VCEP rule used
Publisher-combined source bundles
SourceClinical dataComponent LRPMID
Evidence interaction warnings
gnomAD population frequency policy Frequency, coverage and founder review

Founder exception review: .

PM2 coverage method: .

Scored ENIGMA non-founder populations: . Founder and other excluded groups do not contribute to BA1, BS1 or PM2 presence.

Open ENIGMA Appendix G
SpliceAI
Status
Score used
ENIGMA scoring profile
Genome assembly
Maximum distance
Masking
Annotation subset
Aggregation
Transcript used
Transcript policy
Reference transcript score
Maximum across all transcripts
Transcript with overall maximum
Maximum delta field
Delta scores
Reference scores
Alternate scores
Source
GRCh38 query
Cache record
Lookup information
Mixed evidence combination ENIGMA v1.2 / Tavtigian 2020 points
Pathogenic points
Benign points
Total
Method
ENIGMA VCEP v1.2 second classification approach for mixed evidence, using the Tavtigian 2020 point system

Manually reviewed criteria

Add evidence that cannot be automated. The original Module 1 result remains unchanged; ARIANE calculates a separate amended working result.

Recommended reviews for this variant

ARIANE found variant-specific evidence that can be carried into expert review.

Do not enter names, dates of birth or other direct patient identifiers in evidence notes.

Working result including user-provided evidence

Total points:

This amended result is audit support, not an independent clinical classification. The reviewer remains responsible for evidence validity and applicability.

Evidence interaction warnings
Criterion ARIANE suggestion Selected strength Points

Assessor: ; date:

Reviewer sign-in

Saving and approval require the authenticated reviewer account configured for this ARIANE installation. The current beta uses the protected administrator account and records both the account and the stated reviewer identity.

Version ; record

Content SHA-256:

Approve this saved version

Approval creates a new immutable version. The saved draft is retained unchanged.

This review version is approved and immutable. New evidence must be saved as a new draft.

Warnings

External comparison ClinVar and ENIGMA Expert Panel

ClinVar

Aggregate classification
Review status
ClinVar review stars
Submitters
Conflict Yes - conflicting interpretations

Submitter details

Submitter Classification Date Review Curated status

ENIGMA Expert Panel

ENIGMA EP classification
Source

Criteria sources and supplementary material

Direct links to the ENIGMA BRCA1/2 VCEP v1.2 documents used to implement ARIANE and to the ClinVar review-status guidance.

ENIGMA rules used by ARIANE

ClinGen ENIGMA BRCA1/2 VCEP , released .

Official specification

Loading validated rules and data sources...

The coloured nodes and connectors show the path used for the selected applied criterion.

Selected variant path
Show path for:

General rule view. Classify a variant, then open a criterion's decision path to highlight the route supported by its evidence. General view of this branch. The selected variant follows the branch.

Variant type Decision Outcome Path used for this result

Key

Original ENIGMA figures

Original panels extracted from the checksum-validated ENIGMA Specifications and Appendix v1.2 documents.

Open complete specification

ENIGMA tables

ENIGMA tables used by ARIANE are shown first. The complete -table v1.2 source bundle remains available for expert review and audit.

Open official source

ARIANE use:

Loading table rows...

Row

No rows match this search.

rows, page of

Validated sources and versions

Checksums identify the exact official files used to build and verify ARIANE data. Local server paths are not exposed.

Enter one variant per line. Both formats are accepted:

BRCA1, c.509G>A                          <-- gene and reference-transcript c. HGVS
BRCA1, NM_007294.4:c.303T>G             <-- transcript-qualified HGVS
BRCA1, chr17:43099813:C>T, GRCh38       <-- genomic variant requires assembly
BRCA1, c.509G>A, p.(Arg170Gln)          <-- comma-separated input
BRCA1 NM_007294.4:c.509G>A p.(Arg170Gln) <-- space-separated input

A header row starting with gene or # is skipped automatically.

Results ( classified, errors)

# Gene c. notation p. notation Class Points Criteria Review Warnings