About BRCA1
No gene-level summary was recorded for this case.
No variant summary was recorded for this case.
Five-step scale from benign to pathogenic. This variant is benign. Select a step to read what it means.
Benign.A benign classification under the recorded framework.
Gene-level background from the recorded interpretation.
Words with a dotted underline have a short definition. Hover or tap them.No gene-level summary was recorded for this case.
The recorded framework is ClinGen BRCA1 VCEP v1.2.0. The criteria and strengths shown below come from the saved assessment; this page does not recalculate the classification.
The applied criteria and their strengths are shown as assessed under the stated framework.
No pathogenic criterion marked as applied in the recorded assessment.
The population frequency exceeds the BRCA1 BS1 supporting threshold of greater than 0.00002 but does not exceed the strong threshold of greater than 0.0001. The grpmax FAF is 2.294e-05 in gnomAD v2.1 and 3.666e-05 in gnomAD v4.1, supporting BS1 at supporting strength.
In two calibrated functional studies curated by ENIGMA, this variant showed protein function similar to benign control variants and no functional impact, supporting BS3 at strong strength.
This missense variant lies outside the BRCA1 clinically important functional domains defined by ENIGMA, and no splice effect is predicted. Arg1443 is outside the RING domain (aa 2-101), the coiled-coil domain (aa 1391-1424), and the BRCT repeats (aa 1650-1857), and SpliceAI shows a max delta score of 0.01, supporting BP1 at strong strength. REVEL is also low at 0.007.
Expert panel Evidence-based Network for the Interpretation of Germline Mutant Alleles (ENIGMA) classified as Benign.
ENIGMA BRCA1/BRCA2 Specification v1.2 Table 3 final-classification framework: BS3_Strong and BP1_Strong satisfy the Benign rule requiring at least two strong benign criteria; BS1_Supporting and BP6_Supporting_Benign provide additional benign support.
Evidence summaries and captured source records, where available. Missing entries should not be interpreted as negative findings.
gnomAD v4.1: 65 / 1,613,954 alleles. Recorded AF 4.02738e-05. Recorded homozygote count 0.
This variant is present in gnomAD v2.1 (AF= 3.18291e-05; MAF= 0.00318%, 9/282760 alleles, homozygotes = 0) and has highest observed frequency in the Remaining individuals population (AF= 0.000138581; MAF= 0.01386%, 1/7216 alleles, homozygotes = 0); grpmax FAF= 2.294e-05.
No SpliceAI or REVEL score is recorded in the fields used for this tile.
A ClinVar laboratory submission summary was not recorded.
OncoKB identified variant-specific curated literature and context relevant to functional review; biological-effect context: Likely Neutral; curated oncogenicity label: Likely Neutral.
No COSMIC evidence statement is recorded in this case.
This variant does not lie in a statistically significant hotspot.
ACMG/AMP criteria under ClinGen BRCA1 VCEP v1.2.0, with the data and sources behind each one.
28 criteria with recorded statuses: 4 met · 5 not met · 9 not assessed · 10 not applicable. Open any row for the full reasoning, the rule and the evidence behind it.
The BRCA1 c.4327C>G (p.Arg1443Gly; p.R1443G) variant has been reported in ClinVar, where the aggregate classification is Benign with expert panel review.
This variant is present in population databases, including gnomAD v2.1 at 9/282760 alleles (AF 3.18291e-05; grpmax FAF 2.294e-05) and gnomAD v4.1 at 65/1613954 alleles (AF 4.02738e-05; grpmax FAF 3.666e-05), which exceeds the BRCA1 BS1 supporting threshold of 0.00002 but remains below the BA1 threshold of 0.001.
In two calibrated functional studies curated by ENIGMA, this variant showed no functional impact and protein behavior similar to benign control variants, supporting BS3 at strong strength.
Computational evidence does not support a damaging effect: SpliceAI predicts no significant splice impact with a maximum delta score of 0.01, BayesDel no-AF is -0.285466, and REVEL is 0.007; because Arg1443 lies outside the BRCA1 ENIGMA clinically important functional domains, this profile supports BP1_Strong rather than PP3.
No criteria match.
BRCA1 ENIGMA BS1 Supporting rule
BRCA1 ENIGMA BS3 Strong rule
BRCA1 ENIGMA BP1_Strong rule
BRCA1 ENIGMA PS3 rule
BRCA1 ENIGMA PM2_Supporting rule
BRCA1 ENIGMA PP3 rule
BRCA1 ENIGMA BA1 rule
BRCA1 ENIGMA BP4 rule
BRCA1 ENIGMA PS1 rule
BRCA1 ENIGMA PM3 rule
BRCA1 ENIGMA PP4 rule
BRCA1 ENIGMA BS2 rule
BRCA1 ENIGMA BS4 rule
BRCA1 ENIGMA BP5 rule
BRCA1 ENIGMA BP7 rule
BRCA1 ENIGMA PVS1 null-variant/RNA rule
Not applicable in BRCA1 ENIGMA v1.2
Not applicable in BRCA1 ENIGMA v1.2
Not applicable in BRCA1 ENIGMA v1.2
BRCA1 ENIGMA PM5_PTC rule
Not applicable in BRCA1 ENIGMA v1.2
Not applicable in BRCA1 ENIGMA v1.2
Not applicable in BRCA1 ENIGMA v1.2
Not applicable in BRCA1 ENIGMA v1.2
Not applicable in BRCA1 ENIGMA v1.2
Every interpreted variant in BRCA1, mapped onto the exon structure of NM_007294.4. Select a row to find it on the plot.
| Protein | Location | Classification | Link |
|---|
| Admixed American5 / 59,986 | 8.3e-05 |
| European (non-Finnish)55 / 1,179,998 | 4.7e-05 |
| African/African American3 / 74,910 | 4e-05 |
| Remaining individuals2 / 62,486 | 3.2e-05 |
| Remaining individuals1 / 7,216 | 0.00014 |
| Admixed American2 / 35,428 | 5.6e-05 |
| European (non-Finnish)6 / 129,108 | 4.6e-05 |
This variant is present in gnomAD v4.1 (AF= 4.02738e-05; MAF= 0.00403%, 65/1613954 alleles, homozygotes = 0) and has highest observed frequency in the Admixed American population (AF= 8.33528e-05; MAF= 0.00834%, 5/59986 alleles, homozygotes = 0); grpmax FAF= 3.666e-05.
This variant is present in gnomAD v2.1 (AF= 3.18291e-05; MAF= 0.00318%, 9/282760 alleles, homozygotes = 0) and has highest observed frequency in the Remaining individuals population (AF= 0.000138581; MAF= 0.01386%, 1/7216 alleles, homozygotes = 0); grpmax FAF= 2.294e-05.
BRCA1 ENIGMA PP3 rule
BRCA1 ENIGMA BP4 rule
BRCA1 ENIGMA BP7 rule
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.01). REVEL score = 0.007. BayesDel score = -0.285466.
0 paper records listed. No publication is explicitly linked to an applied criterion in the recorded metadata.
Screenshots represent source records captured during evidence collection. Select one to view the recorded source content.
The evidence statements recorded by the interpretation pipeline. They have not been reinterpreted by the page.
This variant is present in gnomAD v4.1 (AF= 4.02738e-05; MAF= 0.00403%, 65/1613954 alleles, homozygotes = 0) and has highest observed frequency in the Admixed American population (AF= 8.33528e-05; MAF= 0.00834%, 5/59986 alleles, homozygotes = 0); grpmax FAF= 3.666e-05.
This variant is present in gnomAD v2.1 (AF= 3.18291e-05; MAF= 0.00318%, 9/282760 alleles, homozygotes = 0) and has highest observed frequency in the Remaining individuals population (AF= 0.000138581; MAF= 0.01386%, 1/7216 alleles, homozygotes = 0); grpmax FAF= 2.294e-05.
This variant has been reported in ClinVar as Likely benign (8 clinical laboratories) and as Benign (6 clinical laboratories) and as Uncertain significance (3 clinical laboratories) and as Benign by Evidence-based Network for the Interpretation of Germline Mutant Alleles (ENIGMA) (expert panel).
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.01). REVEL score = 0.007. BayesDel score = -0.285466.
OncoKB identified variant-specific curated literature and context relevant to functional review; biological-effect context: Likely Neutral; curated oncogenicity label: Likely Neutral.
This variant does not lie in a statistically significant hotspot. This variant has not previously been reported in somatic cancers (COSMIC).
This variant does not lie in a statistically significant hotspot.