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

Genomes: 𝑓 0.0043 ( 5 hom., cov: 32)
Exomes 𝑓: 0.0048 ( 24 hom. )

Consequence

PALB2
NM_024675.4 missense

Scores

8
10

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:29O:1

Conservation

PhyloP100: 2.32
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 -16 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.011090875).
BP6
Variant 16-23624049-C-T is Benign according to our data. Variant chr16-23624049-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 126682.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-23624049-C-T is described in Lovd as [Benign]. Variant chr16-23624049-C-T is described in Lovd as [Likely_benign].
BS2
High Homozygotes in GnomAd4 at 5 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PALB2NM_024675.4 linkuse as main transcriptc.2794G>A p.Val932Met missense_variant 8/13 ENST00000261584.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PALB2ENST00000261584.9 linkuse as main transcriptc.2794G>A p.Val932Met missense_variant 8/131 NM_024675.4 P1
ENST00000561764.1 linkuse as main transcriptn.569C>T non_coding_transcript_exon_variant 4/42

Frequencies

GnomAD3 genomes
AF:
0.00433
AC:
659
AN:
152102
Hom.:
5
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000990
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00157
Gnomad ASJ
AF:
0.00317
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00187
Gnomad FIN
AF:
0.0199
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.00523
Gnomad OTH
AF:
0.00287
GnomAD3 exomes
AF:
0.00517
AC:
1296
AN:
250912
Hom.:
4
AF XY:
0.00522
AC XY:
709
AN XY:
135740
show subpopulations
Gnomad AFR exome
AF:
0.00148
Gnomad AMR exome
AF:
0.00200
Gnomad ASJ exome
AF:
0.00378
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00101
Gnomad FIN exome
AF:
0.0167
Gnomad NFE exome
AF:
0.00660
Gnomad OTH exome
AF:
0.00392
GnomAD4 exome
AF:
0.00478
AC:
6964
AN:
1455698
Hom.:
24
Cov.:
30
AF XY:
0.00472
AC XY:
3423
AN XY:
724528
show subpopulations
Gnomad4 AFR exome
AF:
0.00111
Gnomad4 AMR exome
AF:
0.00190
Gnomad4 ASJ exome
AF:
0.00471
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000998
Gnomad4 FIN exome
AF:
0.0147
Gnomad4 NFE exome
AF:
0.00507
Gnomad4 OTH exome
AF:
0.00390
GnomAD4 genome
AF:
0.00433
AC:
659
AN:
152220
Hom.:
5
Cov.:
32
AF XY:
0.00486
AC XY:
362
AN XY:
74420
show subpopulations
Gnomad4 AFR
AF:
0.000987
Gnomad4 AMR
AF:
0.00157
Gnomad4 ASJ
AF:
0.00317
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00187
Gnomad4 FIN
AF:
0.0199
Gnomad4 NFE
AF:
0.00523
Gnomad4 OTH
AF:
0.00284
Alfa
AF:
0.00502
Hom.:
5
Bravo
AF:
0.00296
TwinsUK
AF:
0.00512
AC:
19
ALSPAC
AF:
0.00441
AC:
17
ESP6500AA
AF:
0.00114
AC:
5
ESP6500EA
AF:
0.00593
AC:
51
ExAC
AF:
0.00586
AC:
712
Asia WGS
AF:
0.00173
AC:
6
AN:
3478
EpiCase
AF:
0.00480
EpiControl
AF:
0.00486

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:29Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:7
Benign, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesNov 11, 2023- -
Likely benign, no assertion criteria providedclinical testingLaboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)-- -
Likely benign, no assertion criteria providedclinical testingJoint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+-- -
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJul 01, 2024PALB2: BP4, BS2 -
Likely benign, no assertion criteria providedclinical testingDiagnostic Laboratory, Department of Genetics, University Medical Center Groningen-- -
Likely benign, criteria provided, single submitterclinical testingCenter for Pediatric Genomic Medicine, Children's Mercy Hospital and ClinicsFeb 17, 2017- -
Likely benign, no assertion criteria providedcurationLeiden Open Variation DatabaseSep 18, 2019Curators: 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 submitterclinical testingCenter for Genomic Medicine, Rigshospitalet, Copenhagen University HospitalAug 15, 2023- -
Benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Apr 03, 2018- -
Benign, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, Amsterdam University Medical Center-- -
not provided, no classification providedreference populationITMISep 19, 2013- -
Benign, criteria provided, single submitterclinical testingGeneDxOct 03, 2016This 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 submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Benign, no assertion criteria providedclinical testingClinical Genetics Laboratory, Department of Pathology, Netherlands Cancer Institute-- -
Hereditary cancer-predisposing syndrome Benign:6
Benign, criteria provided, single submitterclinical testingColor Diagnostics, LLC DBA Color HealthNov 26, 2014- -
Benign, criteria provided, single submittercurationSema4, Sema4Jul 15, 2020- -
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -
Likely benign, no assertion criteria providedclinical testingTrue Health DiagnosticsFeb 20, 2018- -
Likely benign, criteria provided, single submitterclinical testingInstitute for Biomarker Research, Medical Diagnostic Laboratories, L.L.C.Feb 14, 2017- -
Benign, criteria provided, single submitterclinical testingAmbry GeneticsAug 05, 2014This 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 providedclinical testingPathway GenomicsNov 06, 2014- -
Likely benign, criteria provided, single submittercase-controlCancer Genetics Laboratory, Peter MacCallum Cancer CentreJun 01, 2015- -
Likely benign, criteria provided, single submitterclinical testingMendelicsMay 28, 2019- -
Benign, criteria provided, single submitterclinical testingInvitaeFeb 01, 2024- -
Familial cancer of breast;C1835817:Fanconi anemia complementation group N;C3150547:Pancreatic cancer, susceptibility to, 3 Benign:1
Benign, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsApr 06, 2022- -
Fanconi anemia complementation group N Benign:1
Likely benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaMar 06, 2018This 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 submitterclinical testingCHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern OntarioMar 02, 2022- -
Breast-ovarian cancer, familial, susceptibility to, 5 Benign:1
Benign, criteria provided, single submitterclinical testingKCCC/NGS Laboratory, Kuwait Cancer Control CenterJul 07, 2023- -
Familial ovarian cancer Benign:1
Benign, no assertion criteria providedclinical testingDepartment 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 providedclinical testingDepartment 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: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.39
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.34
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.041
T;T
Eigen
Uncertain
0.48
Eigen_PC
Uncertain
0.48
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Uncertain
0.92
D;D
MetaRNN
Benign
0.011
T;T
MetaSVM
Benign
-0.85
T
MutationAssessor
Uncertain
2.5
.;M
MutationTaster
Benign
0.72
D
PrimateAI
Benign
0.46
T
PROVEAN
Benign
-1.8
N;N
REVEL
Benign
0.13
Sift
Benign
0.11
T;T
Sift4G
Uncertain
0.0080
D;D
Polyphen
1.0
.;D
Vest4
0.62
MVP
0.65
MPC
0.35
ClinPred
0.021
T
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.085
gMVP
0.50

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs45624036; hg19: chr16-23635370; COSMIC: COSV99848849; COSMIC: COSV99848849; API