chr16-23630019-G-A

Position:

chr16-23630019-G-A

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_024675.4(PALB2):c.2135C>T(p.Ala712Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000195 in 1,614,106 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00019 ( 2 hom. )

Consequence

PALB2
NM_024675.4 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:24

Conservation

PhyloP100: -1.29

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]

PALB2 links:

PALB2 (HGNC:):

PALB2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -16 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.010232568).

BP6

Variant 16-23630019-G-A is Benign according to our data. Variant chr16-23630019-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 126637.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-23630019-G-A is described in Lovd as [Likely_benign].

BS2

High Homozygotes in GnomAdExome4 at 2 AD,AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PALB2	NM_024675.4 linkuse as main transcript	c.2135C>T	p.Ala712Val	missense_variant	5/13	ENST00000261584.9	NP_078951.2	Q86YC2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PALB2	ENST00000261584.9 linkuse as main transcript	c.2135C>T	p.Ala712Val	missense_variant	5/13	1	NM_024675.4	ENSP00000261584.4		Q86YC2

Frequencies

GnomAD3 genomes

AF:

0.000224

AC:

AN:

152108

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000720

Gnomad ASJ

AF:

0.00115

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.0127

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.00239

GnomAD3 exomes

AF:

0.000294

AC:

AN:

251492

Hom.:

AF XY:

0.000338

AC XY:

AN XY:

135920

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000289

Gnomad ASJ exome

AF:

0.00109

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000229

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000316

Gnomad OTH exome

AF:

0.00163

GnomAD4 exome

AF:

0.000192

AC:

281

AN:

1461880

Hom.:

Cov.:

AF XY:

0.000197

AC XY:

143

AN XY:

727240

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.000291

Gnomad4 ASJ exome

AF:

0.00111

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000148

Gnomad4 OTH exome

AF:

0.000364

GnomAD4 genome

AF:

0.000223

AC:

AN:

152226

Hom.:

Cov.:

AF XY:

0.000202

AC XY:

AN XY:

74424

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000719

Gnomad4 ASJ

AF:

0.00115

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.00237

Alfa

AF:

0.000374

Hom.:

Bravo

AF:

0.000268

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000930

AC:

ExAC

AF:

0.000247

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.000474

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:24

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:7

Likely benign, criteria provided, single submitter	clinical testing	Quest Diagnostics Nichols Institute San Juan Capistrano	Feb 20, 2023	- -
Likely benign, no assertion criteria provided	clinical testing	Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+	-	- -
Likely benign, no assertion criteria provided	clinical testing	Genome Diagnostics Laboratory, Amsterdam University Medical Center	-	- -
Likely benign, no assertion criteria provided	clinical testing	Clinical Genetics Laboratory, Department of Pathology, Netherlands Cancer Institute	-	- -
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	CeGaT Center for Human Genetics Tuebingen	Jul 01, 2024	PALB2: BP4 -
Likely benign, no assertion criteria provided	curation	Leiden Open Variation Database	May 13, 2019	Curators: Marc Tischkowitz, Arleen D. Auerbach. Submitter to LOVD: Marc Tischkowitz. -

Hereditary cancer-predisposing syndrome

Benign:6

Likely benign, no assertion criteria provided	clinical testing	Institute for Biomarker Research, Medical Diagnostic Laboratories, L.L.C.	Mar 22, 2022	- -
Likely benign, no assertion criteria provided	clinical testing	True Health Diagnostics	Jan 30, 2018	- -
Likely benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jun 14, 2016	- -
Benign, criteria provided, single submitter	clinical testing	Ambry Genetics	Jan 19, 2015	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. -
Benign, criteria provided, single submitter	curation	Sema4, Sema4	Jul 07, 2020	- -
Likely benign, criteria provided, single submitter	clinical testing	Color Diagnostics, LLC DBA Color Health	Dec 05, 2014	- -

Familial cancer of breast

Benign:5

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 30, 2024	- -
Benign, criteria provided, single submitter	clinical testing	Myriad Genetics, Inc.	Mar 31, 2023	This variant is considered benign. This variant is strongly associated with less severe personal and family histories of cancer, typical for individuals without pathogenic variants in this gene [PMID: 25085752]. Homozygosity for this variant has been confirmed in one or more individuals lacking clinical features consistent with gene-specific recessive disease, indicating that this variant is unlikely to be pathogenic. -
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	- -
Likely benign, criteria provided, single submitter	clinical testing	Counsyl	Aug 11, 2017	- -

not specified

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Dec 12, 2017	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. -
Likely benign, criteria provided, single submitter	clinical testing	Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital	Jul 31, 2024	- -

Familial cancer of breast;C1835817:Fanconi anemia complementation group N;C3150547:Pancreatic cancer, susceptibility to, 3

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Oct 06, 2021

- -

Fanconi anemia complementation group N

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Apr 27, 2017

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

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

- -

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.Ala712Val variant was identified in 11 of 13046 proband chromosomes (frequency: 0.0008) from Jewish, Polish, German, Australian, and North American individuals or families with high-risk or familial breast, ovarian, or pancreatic cancer or Lynch syndrome and was identified in 2 of 5548 chromosomes (frequency: 0.0004) from healthy individuals (Catucci 2012, Dansonka-Mieszkowska 2010, Hellebrand 2011, Thompson 2015, Tischkowitz 2012, Yurgelun 2015, Zhen 2015). The variant was also identified in dbSNP (ID: rs141458731) â€šÃ„ÃºWith other alleleâ€šÃ„Ã¹, ClinVar (classified benign by Ambry Genetics and Invitae; and as likely benign by GeneDx and four other submitters), and LOVD 3.0 (1x). The variant was observed in control databases in 76 (1 homozygous) of 277240 chromosomes at a frequency of 0.0003 (Genome Aggregation Database Feb 27, 2017). The variant was observed in the following populations: Other in 10 of 6466 chromosomes (1 homozygous, freq: 0.002), Latino in 12 of 34420 chromosomes (freq: 0.0003), European in 36 of 126726 chromosomes (freq: 0.0003), Ashkenazi Jewish in 12 of 10152 chromosomes (freq: 0.001), and South Asian in 6 of 30782 chromosomes (freq: 0.0002); it was not observed in the African, East Asian, or Finnish populations. The variant was not identified in Cosmic, MutDB, or the Zhejiang Colon Cancer Database. The p.Ala712 residue is not conserved in mammals and computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) do not suggest a high likelihood that the variant impacts the protein; however, this information is not predictive enough to rule out pathogenicity. The variant occurs outside of the splicing consensus sequence and in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) do not predict a difference in splicing. 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

Benign

0.076

BayesDel_addAF

Benign

-0.58

BayesDel_noAF

Benign

-0.76

CADD

Benign

0.12

DANN

Benign

0.84

DEOGEN2

Benign

0.028

T;T

Eigen

Benign

-1.5

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.036

LIST_S2

Benign

0.53

T;T

M_CAP

Benign

0.0058

MetaRNN

Benign

0.010

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.28

.;N

PrimateAI

Benign

0.25

PROVEAN

Benign

-1.1

N;N

REVEL

Benign

0.041

Sift

Benign

0.13

T;T

Sift4G

Benign

0.30

T;T

Polyphen

0.017

.;B

Vest4

0.074

MVP

0.23

MPC

0.053

ClinPred

0.0077

GERP RS

-8.6

Varity_R

0.022

gMVP

0.11

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over