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rs750782778

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_024675.4(PALB2):c.538G>T(p.Glu180Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD Genomes project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 32)

Consequence

PALB2
NM_024675.4 stop_gained

Scores

1
1
5

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:3

Conservation

PhyloP100: 0.432
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 Pathogenic. Variant got 18 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 16-23636008-C-A is Pathogenic according to our data. Variant chr16-23636008-C-A is described in ClinVar as [Pathogenic]. Clinvar id is 830107.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr16-23636008-C-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PALB2NM_024675.4 linkuse as main transcriptc.538G>T p.Glu180Ter stop_gained 4/13 ENST00000261584.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PALB2ENST00000261584.9 linkuse as main transcriptc.538G>T p.Glu180Ter stop_gained 4/131 NM_024675.4 P1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Cov.:
32
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Pathogenic:2
Pathogenic, criteria provided, single submitterclinical testingGeneDxMar 14, 2023Nonsense variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss of function is a known mechanism of disease; Not observed at significant frequency in large population cohorts (gnomAD); This variant is associated with the following publications: (PMID: 30287823) -
Pathogenic, no assertion criteria providedcurationLeiden Open Variation DatabaseOct 10, 2018Curators: Marc Tischkowitz, Arleen D. Auerbach. Submitter to LOVD: Yukihide Momozawa. -
Familial cancer of breast Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingInvitaeJul 30, 2023For these reasons, this variant has been classified as Pathogenic. ClinVar contains an entry for this variant (Variation ID: 830107). This premature translational stop signal has been observed in individual(s) with breast cancer (PMID: 30287823). This variant is not present in population databases (gnomAD no frequency). This sequence change creates a premature translational stop signal (p.Glu180*) in the PALB2 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in PALB2 are known to be pathogenic (PMID: 17200668, 17200671, 17200672, 24136930, 25099575). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.60
D
BayesDel_noAF
Benign
-0.10
Cadd
Pathogenic
26
Dann
Uncertain
0.99
Eigen
Benign
-0.041
Eigen_PC
Benign
-0.36
FATHMM_MKL
Benign
0.17
N
MutationTaster
Benign
1.0
A
Vest4
0.81
GERP RS
2.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.1

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.090
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: rs750782778; hg19: chr16-23647329; API