chr16-23624022-T-C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4BP6

The NM_024675.4(PALB2):​c.2821A>G​(p.Ile941Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000565 in 1,591,624 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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. I941S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000056 ( 0 hom. )

Consequence

PALB2
NM_024675.4 missense

Scores

2
6
10

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:7B:2

Conservation

PhyloP100: 4.77

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: 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.39712444).
BP6
Variant 16-23624022-T-C is Benign according to our data. Variant chr16-23624022-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 460961.

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

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PALB2
NM_024675.4
MANE Select
c.2821A>Gp.Ile941Val
missense
Exon 8 of 13NP_078951.2
PALB2
NM_001407296.1
c.2761A>Gp.Ile921Val
missense
Exon 7 of 12NP_001394225.1
PALB2
NM_001407297.1
c.2749A>Gp.Ile917Val
missense
Exon 7 of 12NP_001394226.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PALB2
ENST00000261584.9
TSL:1 MANE Select
c.2821A>Gp.Ile941Val
missense
Exon 8 of 13ENSP00000261584.4Q86YC2
PALB2
ENST00000568219.5
TSL:1
c.1936A>Gp.Ile646Val
missense
Exon 8 of 13ENSP00000454703.2H3BN63
PALB2
ENST00000561514.3
TSL:5
c.2827A>Gp.Ile943Val
missense
Exon 8 of 13ENSP00000460666.3A0AA52I2C1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152178
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000199
AC:
5
AN:
250838
AF XY:
0.0000147
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000882
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000556
AC:
8
AN:
1439446
Hom.:
0
Cov.:
29
AF XY:
0.00000418
AC XY:
3
AN XY:
717414
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32964
American (AMR)
AF:
0.0000895
AC:
4
AN:
44688
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26002
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39564
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85770
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53326
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5724
European-Non Finnish (NFE)
AF:
0.00000366
AC:
4
AN:
1091706
Other (OTH)
AF:
0.00
AC:
0
AN:
59702
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00000657
AC:
1
AN:
152178
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74336
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41438
American (AMR)
AF:
0.0000655
AC:
1
AN:
15266
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68042
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000282
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000247
AC:
3

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
1
Familial cancer of breast (3)
-
2
1
not provided (3)
-
2
-
Hereditary cancer-predisposing syndrome (2)
-
1
-
Fanconi anemia complementation group N;C3150547:Pancreatic cancer, susceptibility to, 3;C5830615:Breast-ovarian cancer, familial, susceptibility to, 5 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.31
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.33
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.14
T
Eigen
Pathogenic
0.74
Eigen_PC
Pathogenic
0.72
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.88
D
M_CAP
Benign
0.020
T
MetaRNN
Benign
0.40
T
MetaSVM
Benign
-0.72
T
MutationAssessor
Uncertain
2.6
M
PhyloP100
4.8
PrimateAI
Uncertain
0.58
T
PROVEAN
Benign
-0.77
N
REVEL
Benign
0.17
Sift
Uncertain
0.016
D
Sift4G
Benign
0.091
T
Polyphen
1.0
D
Vest4
0.53
MutPred
0.40
Loss of helix (P = 0.2271)
MVP
0.54
MPC
0.32
ClinPred
0.59
D
GERP RS
5.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.23
gMVP
0.28
Mutation Taster
=71/29
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs778602038; hg19: chr16-23635343; API