16-23624049-C-T
Variant summary
Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2
The NM_024675.4(PALB2):c.2794G>A(p.Val932Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00474 in 1,607,918 control chromosomes in the GnomAD database, including 29 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V932L) has been classified as Uncertain significance.
Frequency
Consequence
NM_024675.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -16 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
PALB2 | NM_024675.4 | c.2794G>A | p.Val932Met | missense_variant | 8/13 | ENST00000261584.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
PALB2 | ENST00000261584.9 | c.2794G>A | p.Val932Met | missense_variant | 8/13 | 1 | NM_024675.4 | P1 | |
ENST00000561764.1 | n.569C>T | non_coding_transcript_exon_variant | 4/4 | 2 |
Frequencies
GnomAD3 genomes AF: 0.00433 AC: 659AN: 152102Hom.: 5 Cov.: 32
GnomAD3 exomes AF: 0.00517 AC: 1296AN: 250912Hom.: 4 AF XY: 0.00522 AC XY: 709AN XY: 135740
GnomAD4 exome AF: 0.00478 AC: 6964AN: 1455698Hom.: 24 Cov.: 30 AF XY: 0.00472 AC XY: 3423AN XY: 724528
GnomAD4 genome AF: 0.00433 AC: 659AN: 152220Hom.: 5 Cov.: 32 AF XY: 0.00486 AC XY: 362AN XY: 74420
ClinVar
Submissions by phenotype
not provided Benign:7
Benign, criteria provided, single submitter | clinical testing | ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories | Nov 11, 2023 | - - |
Likely benign, no assertion criteria provided | clinical testing | Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC) | - | - - |
Likely benign, no assertion criteria provided | clinical testing | Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+ | - | - - |
Likely benign, criteria provided, single submitter | clinical testing | CeGaT Center for Human Genetics Tuebingen | Jul 01, 2024 | PALB2: BP4, BS2 - |
Likely benign, no assertion criteria provided | clinical testing | Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen | - | - - |
Likely benign, criteria provided, single submitter | clinical testing | Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics | Feb 17, 2017 | - - |
Likely benign, no assertion criteria provided | curation | Leiden Open Variation Database | Sep 18, 2019 | Curators: Marc Tischkowitz, Arleen D. Auerbach. Submitters to LOVD: Andreas Laner, Carlos Vaccaro, Marc Tischkowitz, Melissa DeRycke. - |
not specified Benign:6Other:1
Likely benign, criteria provided, single submitter | clinical testing | Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital | Aug 15, 2023 | - - |
Benign, criteria provided, single submitter | clinical testing | Eurofins Ntd Llc (ga) | Apr 03, 2018 | - - |
Benign, no assertion criteria provided | clinical testing | Genome Diagnostics Laboratory, Amsterdam University Medical Center | - | - - |
not provided, no classification provided | reference population | ITMI | Sep 19, 2013 | - - |
Benign, criteria provided, single submitter | clinical testing | GeneDx | Oct 03, 2016 | This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. - |
Benign, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | - | - - |
Benign, no assertion criteria provided | clinical testing | Clinical Genetics Laboratory, Department of Pathology, Netherlands Cancer Institute | - | - - |
Hereditary cancer-predisposing syndrome Benign:6
Benign, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | Nov 26, 2014 | - - |
Benign, criteria provided, single submitter | curation | Sema4, Sema4 | Jul 15, 2020 | - - |
Likely benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jun 14, 2016 | - - |
Likely benign, no assertion criteria provided | clinical testing | True Health Diagnostics | Feb 20, 2018 | - - |
Likely benign, criteria provided, single submitter | clinical testing | Institute for Biomarker Research, Medical Diagnostic Laboratories, L.L.C. | Feb 14, 2017 | - - |
Benign, criteria provided, single submitter | clinical testing | Ambry Genetics | Aug 05, 2014 | This alteration is classified as 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. - |
Familial cancer of breast Benign:4
Benign, no assertion criteria provided | clinical testing | Pathway Genomics | Nov 06, 2014 | - - |
Likely benign, criteria provided, single submitter | case-control | Cancer Genetics Laboratory, Peter MacCallum Cancer Centre | Jun 01, 2015 | - - |
Likely benign, criteria provided, single submitter | clinical testing | Mendelics | May 28, 2019 | - - |
Benign, criteria provided, single submitter | clinical testing | Invitae | Feb 01, 2024 | - - |
Familial cancer of breast;C1835817:Fanconi anemia complementation group N;C3150547:Pancreatic cancer, susceptibility to, 3 Benign:1
Benign, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Apr 06, 2022 | - - |
Fanconi anemia complementation group N Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Mar 06, 2018 | This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. - |
Breast and/or ovarian cancer Benign:1
Benign, criteria provided, single submitter | clinical testing | CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario | Mar 02, 2022 | - - |
Breast-ovarian cancer, familial, susceptibility to, 5 Benign:1
Benign, criteria provided, single submitter | clinical testing | KCCC/NGS Laboratory, Kuwait Cancer Control Center | Jul 07, 2023 | - - |
Familial ovarian cancer Benign:1
Benign, no assertion criteria provided | clinical testing | Department of Pathology and Laboratory Medicine, Sinai Health System | - | The PALB2 p.Val932Met variant was identified in 60 of 9444 proband chromosomes (frequency: 0.006) from individuals or families with breast, ovarian and prostate cancer and was present in 69 of 12422 control chromosomes (frequency: 0.006) from healthy individuals (Thompson_2015_26283626, Rahman_2007_17200668, Erkko_2007_17287723, Bogdanova_2011_21165770, Wong_2011_21409391, Kuusisto_2011_21356067, Garcia_2009_18302019, Aoude_2014_24949998, Ding_2011_20927582, Prokofyeva_2012_22310028, Hofstatter_2011_21365267, Papi_2010_19763884, Pakkanen_2009_20003494). The variant was also identified in the following databases: dbSNP (ID: rs45624036) as “With other allele”, ClinVar (12x, as benign GeneDx, Invitae, Prevention Genetics, ARUP, Ambry Genetics, Pathway Genetics, PALB2 database, and as likely benign by Cancer Genetics, Illumina, Institute for Biomarker; and ITMI with no indication of clinical significance), Clinvitae (4x, as benign with conflicting pathogenicity), LOVD 3.0 (18x), Zhejiang Colon Cancer Database (4x, as benign with conflicting pathogenicity). The variant was not identified in Cosmic and MutDB, databases. The variant was identified in control databases in 1441 of 276692 chromosomes (4 homozygous) at a frequency of 0.005 increasing the likelihood this could be a low frequency benign variant (Genome Aggregation Database Feb 27, 2017). Observations by population include African in 31 of 23944 chromosomes (freq: 0.001295), “Other” in 30 of 6452 chromosomes (freq: 0.00465), Latino in 63 of 34386 chromosomes (freq: 0.001832), European Non-Finnish in 814 of 126400 chromosomes (freq: 0.00644), Ashkenazi Jewish in 43 of 10130 chromosomes (freq: 0.004245), European Finnish in 428 of 25784 chromosomes (freq: 0.0166), and South Asian in 32 of 30744 chromosomes (freq: 0.001041); while the variant was not observed in the East Asian, populations. The p.Val932Met residue is not conserved in mammals and computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) provide inconsistent predictions regarding the impact to the protein; this information is not very predictive of pathogenicity. The variant occurs outside of the splicing consensus sequence and 3 of 5 in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) predict a greater than 10% difference in splicing. However, this information is not predictive enough to assume pathogenicity. In summary, based on the above information this variant meets our laboratory's criteria to be classified as benign. - |
Malignant tumor of breast Benign:1
Benign, no assertion criteria provided | clinical testing | Department of Pathology and Laboratory Medicine, Sinai Health System | - | The PALB2 p.Val932Met variant was identified in 60 of 9444 proband chromosomes (frequency: 0.006) from individuals or families with breast, ovarian and prostate cancer and was present in 69 of 12422 control chromosomes (frequency: 0.006) from healthy individuals (Thompson_2015_26283626, Rahman_2007_17200668, Erkko_2007_17287723, Bogdanova_2011_21165770, Wong_2011_21409391, Kuusisto_2011_21356067, Garcia_2009_18302019, Aoude_2014_24949998, Ding_2011_20927582, Prokofyeva_2012_22310028, Hofstatter_2011_21365267, Papi_2010_19763884, Pakkanen_2009_20003494). The variant was also identified in the following databases: dbSNP (ID: rs45624036) as “With other allele”, ClinVar (12x, as benign GeneDx, Invitae, Prevention Genetics, ARUP, Ambry Genetics, Pathway Genetics, PALB2 database, and as likely benign by Cancer Genetics, Illumina, Institute for Biomarker; and ITMI with no indication of clinical significance), Clinvitae (4x, as benign with conflicting pathogenicity), LOVD 3.0 (18x), Zhejiang Colon Cancer Database (4x, as benign with conflicting pathogenicity). The variant was not identified in Cosmic and MutDB, databases. The variant was identified in control databases in 1441 of 276692 chromosomes (4 homozygous) at a frequency of 0.005 increasing the likelihood this could be a low frequency benign variant (Genome Aggregation Database Feb 27, 2017). Observations by population include African in 31 of 23944 chromosomes (freq: 0.001295), “Other” in 30 of 6452 chromosomes (freq: 0.00465), Latino in 63 of 34386 chromosomes (freq: 0.001832), European Non-Finnish in 814 of 126400 chromosomes (freq: 0.00644), Ashkenazi Jewish in 43 of 10130 chromosomes (freq: 0.004245), European Finnish in 428 of 25784 chromosomes (freq: 0.0166), and South Asian in 32 of 30744 chromosomes (freq: 0.001041); while the variant was not observed in the East Asian, populations. The p.Val932Met residue is not conserved in mammals and computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) provide inconsistent predictions regarding the impact to the protein; this information is not very predictive of pathogenicity. The variant occurs outside of the splicing consensus sequence and 3 of 5 in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) predict a greater than 10% difference in splicing. However, this information is not predictive enough to assume pathogenicity. In summary, based on the above information this variant meets our laboratory's criteria to be classified as benign. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at