16-23635273-C-G

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_024675.4(PALB2):ā€‹c.1273G>Cā€‹(p.Val425Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,836 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 (ā˜…). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V425M) has been classified as Benign.

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.0000014 ( 0 hom. )

Consequence

PALB2
NM_024675.4 missense

Scores

19

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.760
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 Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.020972013).
BP6
Variant 16-23635273-C-G is Benign according to our data. Variant chr16-23635273-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 1766078.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PALB2NM_024675.4 linkuse as main transcriptc.1273G>C p.Val425Leu missense_variant 4/13 ENST00000261584.9 NP_078951.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PALB2ENST00000261584.9 linkuse as main transcriptc.1273G>C p.Val425Leu missense_variant 4/131 NM_024675.4 ENSP00000261584 P1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461836
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
727224
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsApr 22, 2024This alteration is classified as likely 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.076
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.67
CADD
Benign
6.7
DANN
Benign
0.25
DEOGEN2
Benign
0.0076
T;T
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.098
N
LIST_S2
Benign
0.44
T;T
M_CAP
Benign
0.0045
T
MetaRNN
Benign
0.021
T;T
MetaSVM
Benign
-0.91
T
MutationAssessor
Benign
-1.4
.;N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.34
T
PROVEAN
Benign
2.0
N;N
REVEL
Benign
0.032
Sift
Benign
1.0
T;T
Sift4G
Benign
1.0
T;T
Polyphen
0.0
.;B
Vest4
0.12
MutPred
0.42
.;Loss of MoRF binding (P = 0.1051);
MVP
0.20
MPC
0.051
ClinPred
0.030
T
GERP RS
1.3
Varity_R
0.044
gMVP
0.21

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr16-23646594; API