rs149522412

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_024675.4(PALB2):​c.2851T>C​(p.Ser951Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000131 in 1,613,758 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00056 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000086 ( 2 hom. )

Consequence

PALB2
NM_024675.4 missense

Scores

19

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:15O:1

Conservation

PhyloP100: 0.562
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.009608775).
BP6
Variant 16-23623114-A-G is Benign according to our data. Variant chr16-23623114-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 126691.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=8, Benign=4, Uncertain_significance=3, not_provided=1}. Variant chr16-23623114-A-G 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 rank MANE Protein UniProt
PALB2NM_024675.4 linkc.2851T>C p.Ser951Pro missense_variant Exon 9 of 13 ENST00000261584.9 NP_078951.2 Q86YC2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PALB2ENST00000261584.9 linkc.2851T>C p.Ser951Pro missense_variant Exon 9 of 13 1 NM_024675.4 ENSP00000261584.4 Q86YC2

Frequencies

GnomAD3 genomes
AF:
0.000526
AC:
80
AN:
151962
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000263
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.000199
AC:
50
AN:
251284
Hom.:
0
AF XY:
0.000147
AC XY:
20
AN XY:
135838
show subpopulations
Gnomad AFR exome
AF:
0.00203
Gnomad AMR exome
AF:
0.0000868
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000131
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000616
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.0000862
AC:
126
AN:
1461682
Hom.:
2
Cov.:
32
AF XY:
0.0000853
AC XY:
62
AN XY:
727140
show subpopulations
Gnomad4 AFR exome
AF:
0.00170
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000279
Gnomad4 OTH exome
AF:
0.000348
GnomAD4 genome
AF:
0.000559
AC:
85
AN:
152076
Hom.:
0
Cov.:
32
AF XY:
0.000565
AC XY:
42
AN XY:
74302
show subpopulations
Gnomad4 AFR
AF:
0.00181
Gnomad4 AMR
AF:
0.000262
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.000474
Alfa
AF:
0.000185
Hom.:
0
Bravo
AF:
0.000672
ESP6500AA
AF:
0.00205
AC:
9
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000222
AC:
27
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:15Other:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:2Benign:6
Nov 03, 2021
Institute for Clinical Genetics, University Hospital TU Dresden, University Hospital TU Dresden
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Oct 07, 2022
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jul 01, 2024
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

PALB2: BP4 -

-
Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Aug 26, 2021
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Apr 10, 2018
Eurofins Ntd Llc (ga)
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Sep 20, 2021
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is associated with the following publications: (PMID: 28779002, 23824750, 24728327, 23555315, 21932393) -

Hereditary cancer-predisposing syndrome Benign:5
Mar 14, 2016
Ambry Genetics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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. -

Nov 14, 2023
Institute for Biomarker Research, Medical Diagnostic Laboratories, L.L.C.
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jun 14, 2016
Illumina Laboratory Services, Illumina
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 11, 2021
Sema4, Sema4
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: curation

- -

Jan 02, 2015
Color Diagnostics, LLC DBA Color Health
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:2Other:1
Aug 07, 2020
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Variant summary: PALB2 c.2851T>C (p.Ser951Pro) results in a non-conservative amino acid change located in the WD40 domain (IPR031920) of the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00023 in 283200 control chromosomes, predominantly at a frequency of 0.0018 within the African or African-American subpopulation in the gnomAD database. The observed variant frequency within African or African-American control individuals in the gnomAD database is approximately 12 fold of the estimated maximal expected allele frequency for a pathogenic variant in PALB2 causing Hereditary Breast And Ovarian Cancer Syndrome phenotype (0.00016), strongly suggesting that the variant is a benign polymorphism found primarily in populations of African or African-American origin. . In addition, the variant was reported in 8/2559 African American women (i.e. with a frequency of 0.0031), who were older than 70 years of age, and never had cancer (in the FLOSSIES database). c.2851T>C has been reported in the literature in individuals affected with Breast Cancer, however, it was also found in controls (Zheng_2012, Haiman_2013, Wong-Brown_2014, Bodian_2014). These reports do not provide unequivocal conclusions about association of the variant with Hereditary Breast And Ovarian Cancer Syndrome. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Nine ClinVar submitters (evaluation after 2014) cite the variant as uncertain significance (2x), likely benign (5x) and benign (2x). Based on the evidence outlined above, the variant was classified as likely benign. -

Mar 04, 2025
Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

Classification criteria: BA1, BP1 -

Sep 19, 2013
ITMI
Significance: not provided
Review Status: no classification provided
Collection Method: reference population

- -

Familial cancer of breast Benign:2
May 13, 2019
Leiden Open Variation Database
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: curation

Curators: Marc Tischkowitz, Arleen D. Auerbach. Submitter to LOVD: Marc Tischkowitz. -

Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Fanconi anemia complementation group N Uncertain:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.086
BayesDel_addAF
Benign
-0.54
T
BayesDel_noAF
Benign
-0.55
CADD
Benign
16
DANN
Benign
0.74
DEOGEN2
Benign
0.022
T;T
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.058
N
LIST_S2
Benign
0.52
T;T
M_CAP
Benign
0.0060
T
MetaRNN
Benign
0.0096
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.7
.;L
PrimateAI
Benign
0.33
T
PROVEAN
Benign
-1.9
N;N
REVEL
Benign
0.024
Sift
Benign
0.23
T;T
Sift4G
Benign
0.14
T;T
Polyphen
0.051
.;B
Vest4
0.33
MVP
0.26
MPC
0.069
ClinPred
0.0055
T
GERP RS
0.44
Varity_R
0.096
gMVP
0.66

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: rs149522412; hg19: chr16-23634435; API