Genetic Variant PALB2:c.3113+131G>T (chr16-23621231-C-A) – ACMG Classification: Benign (-13 pts)

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_024675.4(PALB2):c.3113+131G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00356 in 727,084 control chromosomes in the GnomAD database, including 8 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.0036 ( 2 hom., cov: 32)

Exomes 𝑓: 0.0036 ( 6 hom. )

Consequence

PALB2
NM_024675.4 intron

Scores

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -1.19

Publications

2 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:

PALB2-AS1 (HGNC:58305):

PALB2-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.89).

BP6

Variant 16-23621231-C-A is Benign according to our data. Variant chr16-23621231-C-A is described in ClinVar as Likely_benign. ClinVar VariationId is 126710.Status of the report is no_assertion_criteria_provided, 0 stars.

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.00356 (542/152164) while in subpopulation AMR AF = 0.00976 (149/15260). AF 95% confidence interval is 0.00849. There are 2 homozygotes in GnomAd4. There are 243 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 2 AR,AD gene

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.3113+131G>T	intron	N/A	NP_078951.2
PALB2	NM_001407296.1		c.3053+131G>T	intron	N/A	NP_001394225.1
PALB2	NM_001407297.1		c.3041+131G>T	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.3113+131G>T	intron	N/A	ENSP00000261584.4	Q86YC2
PALB2	ENST00000568219.5	TSL:1	c.2228+131G>T	intron	N/A	ENSP00000454703.2	H3BN63
PALB2	ENST00000561514.3	TSL:5	c.3119+131G>T	intron	N/A	ENSP00000460666.3	A0AA52I2C1

Frequencies

GnomAD3 genomes

AF:

0.00356

AC:

542

AN:

152048

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000797

Gnomad AMI

AF:

0.00219

Gnomad AMR

AF:

0.00978

Gnomad ASJ

AF:

0.00490

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000415

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.00471

Gnomad OTH

AF:

0.00864

GnomAD4 exome

AF:

0.00356

AC:

2047

AN:

574920

Hom.:

AF XY:

0.00334

AC XY:

1031

AN XY:

308806

show subpopulations

African (AFR)

AF:

0.000634

AC:

AN:

15766

American (AMR)

AF:

0.00551

AC:

183

AN:

33220

Ashkenazi Jewish (ASJ)

AF:

0.00487

AC:

AN:

19080

East Asian (EAS)

AF:

0.00

AC:

AN:

31170

South Asian (SAS)

AF:

0.000535

AC:

AN:

61630

European-Finnish (FIN)

AF:

0.000512

AC:

AN:

37100

Middle Eastern (MID)

AF:

0.00159

AC:

AN:

2512

European-Non Finnish (NFE)

AF:

0.00462

AC:

1589

AN:

344158

Other (OTH)

AF:

0.00383

AC:

116

AN:

30284

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

102

204

307

409

511

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<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:

0.00356

AC:

542

AN:

152164

Hom.:

Cov.:

AF XY:

0.00326

AC XY:

243

AN XY:

74428

show subpopulations

African (AFR)

AF:

0.000794

AC:

AN:

41538

American (AMR)

AF:

0.00976

AC:

149

AN:

15260

Ashkenazi Jewish (ASJ)

AF:

0.00490

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5176

South Asian (SAS)

AF:

0.000415

AC:

AN:

4816

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00471

AC:

320

AN:

67978

Other (OTH)

AF:

0.00855

AC:

AN:

2106

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.505

Heterozygous variant carriers

112

140

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

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:

0.00393

Hom.:

Bravo

AF:

0.00448

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Likely benign

Revision:no assertion criteria provided

View on ClinVar

Pathogenic

VUS

Benign

Condition

Familial cancer of breast (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.89

CADD

Benign

0.70

(source)

DANN

Benign

0.48

PhyloP100

-1.2

PromoterAI

0.0068

Neutral

(source)

Mutation Taster

=100/0

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