16-23629645-C-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_024675.4(PALB2):c.2509G>A(p.Glu837Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000121 in 1,613,702 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E837Q) has been classified as Likely benign. The gene PALB2 is included in the ClinGen Criteria Specification Registry.

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

PALB2
NM_024675.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:14O:1

Conservation

PhyloP100: 0.360

Publications

29 publications found

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 Gene-Disease associations (from GenCC):

hereditary breast carcinoma
Inheritance: AD Classification: DEFINITIVE Submitted by: Ambry Genetics
PALB2-related cancer predisposition
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
Fanconi anemia complementation group N
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen, G2P
pancreatic cancer, susceptibility to, 3
Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp
Fanconi anemia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

PALB2 links:

Genome browser will be placed here

ACMG classification

Specifications for PALB2 are available in the ClinGen Criteria Specification Registry and recommended for reference when assigning criteria.

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.028042644).

BP6

Variant 16-23629645-C-T is Benign according to our data. Variant chr16-23629645-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 128133.

BS1

Variant frequency is greater than expected in population eas. GnomAdExome4 allele frequency = 0.000127 (185/1461536) while in subpopulation EAS AF = 0.00433 (172/39698). AF 95% confidence interval is 0.0038. There are 0 homozygotes in GnomAdExome4. There are 89 alleles in the male GnomAdExome4 subpopulation. Median coverage is 32. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024675.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
PALB2	NM_024675.4	MANE Select	c.2509G>A	p.Glu837Lys	missense	Exon 5 of 13	NP_078951.2
PALB2	NM_001407296.1		c.2449G>A	p.Glu817Lys	missense	Exon 4 of 12	NP_001394225.1
PALB2	NM_001407297.1		c.2509G>A	p.Glu837Lys	missense	Exon 5 of 12	NP_001394226.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PALB2	ENST00000261584.9	TSL:1 MANE Select	c.2509G>A	p.Glu837Lys	missense	Exon 5 of 13	ENSP00000261584.4	Q86YC2
PALB2	ENST00000568219.5	TSL:1	c.1624G>A	p.Glu542Lys	missense	Exon 5 of 13	ENSP00000454703.2	H3BN63
PALB2	ENST00000561514.3	TSL:5	c.2515G>A	p.Glu839Lys	missense	Exon 5 of 13	ENSP00000460666.3	A0AA52I2C1

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152166

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000998

AC:

AN:

250516

AF XY:

0.0000811

show subpopulations

Gnomad AFR exome

AF:

0.000187

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00120

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000127

AC:

185

AN:

1461536

Hom.:

Cov.:

AF XY:

0.000122

AC XY:

AN XY:

727100

show subpopulations

African (AFR)

AF:

0.000120

AC:

AN:

33468

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00433

AC:

172

AN:

39698

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86224

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53316

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000270

AC:

AN:

1111816

Other (OTH)

AF:

0.0000828

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.491

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000723

AC:

AN:

152166

Hom.:

Cov.:

AF XY:

0.0000673

AC XY:

AN XY:

74328

show subpopulations

African (AFR)

AF:

0.000241

AC:

AN:

41432

American (AMR)

AF:

0.0000655

AC:

AN:

15266

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5204

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68040

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.489

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000105

Hom.:

Bravo

AF:

0.0000907

ExAC

AF:

0.000132

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Hereditary cancer-predisposing syndrome (5)

Familial cancer of breast (4)

not specified (5)

Breast and/or ovarian cancer (1)

Fanconi anemia complementation group N (1)

Hereditary breast ovarian cancer syndrome (1)

Malignant tumor of breast (1)

not provided (1)

PALB2-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.094

BayesDel_addAF

Benign

-0.56

BayesDel_noAF

Benign

-0.61

CADD

Benign

(source)

DANN

Benign

0.90

DEOGEN2

Benign

0.035

Eigen

Benign

-0.40

Eigen_PC

Benign

-0.47

FATHMM_MKL

Benign

0.32

LIST_S2

Benign

0.72

M_CAP

Benign

0.011

MetaRNN

Benign

0.028

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.3

PhyloP100

0.36

PrimateAI

Benign

0.35

PROVEAN

Benign

-1.5

REVEL

Benign

0.044

Sift

Benign

0.14

Sift4G

Benign

0.24

Polyphen

0.92

Vest4

0.29

MutPred

0.14

Gain of ubiquitination at E837 (P = 0.0037)

MVP

0.49

MPC

0.083

ClinPred

0.045

GERP RS

2.4

Varity_R

0.032

gMVP

0.30

Mutation Taster

=97/3

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over