16-23629879-G-T

Position:

• chr16-23629879-G-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP6

The NM_024675.4(PALB2):​c.2275C>A​(p.Gln759Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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 (no stars). Synonymous variant affecting the same amino acid position (i.e. Q759Q) has been classified as Benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: PALB2 NM_024675.4 missense
• Clinical Significance: Likely benign no assertion criteria provided B:1
• Conservation: PhyloP100: 0.637

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 (HGNC:):

ACMG classification

Verdict is Likely_benign. Variant got -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.05363694).
• BP6: Variant 16-23629879-G-T is Benign according to our data. Variant chr16-23629879-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 126643.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr16-23629879-G-T is described in Lovd as [Likely_benign].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PALB2	NM_024675.4	c.2275C>A	p.Gln759Lys	missense_variant	5/13	ENST00000261584.9	NP_078951.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PALB2	ENST00000261584.9	c.2275C>A	p.Gln759Lys	missense_variant	5/13	1	NM_024675.4	ENSP00000261584.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: no assertion criteria provided

Submissions by phenotype

Familial cancer of breast Benign:1

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. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.089
BayesDel_addAF	Benign	-0.33	T
BayesDel_noAF	Benign	-0.72
CADD	Benign	8.3
DANN	Benign	0.19
DEOGEN2	Benign	0.016	T;T
Eigen	Benign	-1.2
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.095	N
LIST_S2	Benign	0.54	T;T
M_CAP	Benign	0.0045	T
MetaRNN	Benign	0.054	T;T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	0.90	.;L
PrimateAI	Benign	0.20	T
PROVEAN	Benign	-1.0	N;N
REVEL	Benign	0.032
Sift	Benign	0.55	T;T
Sift4G	Benign	0.75	T;T
Polyphen		0.0080	.;B
Vest4		0.17
MutPred		0.25		.;Gain of solvent accessibility (P = 0.0071);
MVP		0.17
MPC		0.067
ClinPred		0.031	T
GERP RS		-0.54
Varity_R		0.035
gMVP		0.13

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

Other links and lift over

dbSNP: rs515726083; hg19: chr16-23641200;