Genetic Variant PALB2:c.1684+835G>A (chr16-23634027-C-T) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS1

The NM_024675.4(PALB2):c.1684+835G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00106 in 152,192 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0011 ( 0 hom., cov: 32)

Consequence

PALB2
NM_024675.4 intron

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.654

Publications

3 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: G2P, Labcorp Genetics (formerly Invitae), ClinGen, Ambry Genetics
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

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.92).

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00106 (161/152192) while in subpopulation AFR AF = 0.00366 (152/41538). AF 95% confidence interval is 0.00318. There are 0 homozygotes in GnomAd4. There are 74 alleles in the male GnomAd4 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	Effect	Exon Rank	Protein
PALB2	NM_024675.4	MANE Select	c.1684+835G>A	intron	N/A	NP_078951.2
PALB2	NM_001407296.1		c.1624+835G>A	intron	N/A	NP_001394225.1
PALB2	NM_001407297.1		c.1684+835G>A	intron	N/A	NP_001394226.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
PALB2	ENST00000261584.9	TSL:1 MANE Select	c.1684+835G>A	intron	N/A	ENSP00000261584.4	Q86YC2
PALB2	ENST00000568219.5	TSL:1	c.799+835G>A	intron	N/A	ENSP00000454703.2	H3BN63
PALB2	ENST00000561514.3	TSL:5	c.1690+835G>A	intron	N/A	ENSP00000460666.3	A0AA52I2C1

Frequencies

GnomAD3 genomes

AF:

0.00106

AC:

161

AN:

152074

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00367

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000459

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:

0.000956

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome

AF:

0.00106

AC:

161

AN:

152192

Hom.:

Cov.:

AF XY:

0.000994

AC XY:

AN XY:

74412

show subpopulations

African (AFR)

AF:

0.00366

AC:

152

AN:

41538

American (AMR)

AF:

0.000459

AC:

AN:

15266

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5170

South Asian (SAS)

AF:

0.00

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10598

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68016

Other (OTH)

AF:

0.000946

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.509

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:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.92

CADD

Benign

2.2

(source)

DANN

Benign

0.45

PhyloP100

-0.65

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over