chr16-23621451-G-A

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6_Very_StrongBP7

The NM_024675.4(PALB2):​c.3024C>T​(p.Pro1008=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,613,774 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

PALB2
NM_024675.4 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 0.114
Variant links:
Genes affected
PALB2 (HGNC:26144): (partner and localizer of BRCA2) This gene encodes a protein that may function in tumor suppression. This protein binds to and colocalizes with the breast cancer 2 early onset protein (BRCA2) in nuclear foci and likely permits the stable intranuclear localization and accumulation of BRCA2. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.51).
BP6
Variant 16-23621451-G-A is Benign according to our data. Variant chr16-23621451-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 126705.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-23621451-G-A is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=0.114 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PALB2NM_024675.4 linkuse as main transcriptc.3024C>T p.Pro1008= synonymous_variant 10/13 ENST00000261584.9 NP_078951.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PALB2ENST00000261584.9 linkuse as main transcriptc.3024C>T p.Pro1008= synonymous_variant 10/131 NM_024675.4 ENSP00000261584 P1
ENST00000561764.1 linkuse as main transcriptn.420-2449G>A intron_variant, non_coding_transcript_variant 2

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152026
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.000208
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251444
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135902
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000109
AC:
16
AN:
1461748
Hom.:
0
Cov.:
30
AF XY:
0.0000110
AC XY:
8
AN XY:
727180
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000252
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152026
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74258
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000192
Gnomad4 SAS
AF:
0.000208
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Familial cancer of breast Benign:2
Likely benign, no assertion criteria providedcurationLeiden Open Variation DatabaseMay 13, 2019Curators: Marc Tischkowitz, Arleen D. Auerbach. Submitters to LOVD: Marc Tischkowitz, Yukihide Momozawa. -
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 12, 2023- -
Hereditary cancer-predisposing syndrome Benign:2
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsDec 14, 2016This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Likely benign, criteria provided, single submitterclinical testingColor Diagnostics, LLC DBA Color HealthMay 01, 2017- -
Malignant tumor of breast Benign:1
Likely benign, no assertion criteria providedclinical testingDepartment of Pathology and Laboratory Medicine, Sinai Health System-The PALB2 p.Pro1008= variant was identified in 9 of 14234 proband chromosomes (frequency: 0.0006) from Italian families and Japanese women with breast cancer and was present in 15 of 11391 control chromosomes (frequency: 001) from healthy individuals (Papi 2010, Momozawa 2018). The variant was also identified in dbSNP (ID: rs180177130) as “With Likely benign allele”, ClinVar (4x as likely benign by Invitae, Ambry Genetics, Color, PALB2 database), LOVD 3.0 (4x as benign). The variant was identified in control databases in 1 of 246232 chromosomes at a frequency of 0.000004 (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: East Asian in 1 of 17248 chromosomes (freq: 0.00006), while the variant was not observed in the African, Other, Latino, European Non-Finnish, Ashkenazi Jewish, European Finnish or South Asian populations. The p.Pro1008= variant is not expected to have clinical significance because it does not result in a change of amino acid and is not located in a known consensus splice site. In addition, in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer) do not predict a difference in splicing. In summary, based on the above information the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.51
CADD
Benign
6.9
DANN
Benign
0.63
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs180177130; hg19: chr16-23632772; API