rs372175239

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS2

The NM_006031.6(PCNT):​c.4140G>A​(p.Ala1380Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000978 in 1,573,266 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. A1380A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00063 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0010 ( 2 hom. )

Consequence

PCNT
NM_006031.6 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:5

Conservation

PhyloP100: -3.48

Publications

0 publications found
Variant links:
Genes affected
PCNT (HGNC:16068): (pericentrin) The protein encoded by this gene binds to calmodulin and is expressed in the centrosome. It is an integral component of the pericentriolar material (PCM). The protein contains a series of coiled-coil domains and a highly conserved PCM targeting motif called the PACT domain near its C-terminus. The protein interacts with the microtubule nucleation component gamma-tubulin and is likely important to normal functioning of the centrosomes, cytoskeleton, and cell-cycle progression. Mutations in this gene cause Seckel syndrome-4 and microcephalic osteodysplastic primordial dwarfism type II. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2015]
PCNT Gene-Disease associations (from GenCC):
  • microcephalic osteodysplastic primordial dwarfism type II
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • Moyamoya disease
    Inheritance: AR Classification: MODERATE Submitted by: Genomics England PanelApp

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.91).
BP6
Variant 21-46391300-G-A is Benign according to our data. Variant chr21-46391300-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 211857.
BP7
Synonymous conserved (PhyloP=-3.48 with no splicing effect.
BS2
High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PCNTNM_006031.6 linkc.4140G>A p.Ala1380Ala synonymous_variant Exon 21 of 47 ENST00000359568.10 NP_006022.3 O95613-1
PCNTNM_001315529.2 linkc.3786G>A p.Ala1262Ala synonymous_variant Exon 21 of 47 NP_001302458.1 O95613-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PCNTENST00000359568.10 linkc.4140G>A p.Ala1380Ala synonymous_variant Exon 21 of 47 1 NM_006031.6 ENSP00000352572.5 O95613-1

Frequencies

GnomAD3 genomes
AF:
0.000631
AC:
96
AN:
152198
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000145
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
Gnomad ASJ
AF:
0.00519
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000188
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000985
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000773
AC:
137
AN:
177252
AF XY:
0.000821
show subpopulations
Gnomad AFR exome
AF:
0.000196
Gnomad AMR exome
AF:
0.000189
Gnomad ASJ exome
AF:
0.00560
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000609
Gnomad NFE exome
AF:
0.00100
Gnomad OTH exome
AF:
0.00147
GnomAD4 exome
AF:
0.00101
AC:
1442
AN:
1420950
Hom.:
2
Cov.:
32
AF XY:
0.000973
AC XY:
684
AN XY:
702928
show subpopulations
African (AFR)
AF:
0.000183
AC:
6
AN:
32808
American (AMR)
AF:
0.000159
AC:
6
AN:
37808
Ashkenazi Jewish (ASJ)
AF:
0.00584
AC:
148
AN:
25362
East Asian (EAS)
AF:
0.0000528
AC:
2
AN:
37860
South Asian (SAS)
AF:
0.00
AC:
0
AN:
80992
European-Finnish (FIN)
AF:
0.0000793
AC:
4
AN:
50452
Middle Eastern (MID)
AF:
0.000361
AC:
2
AN:
5536
European-Non Finnish (NFE)
AF:
0.00112
AC:
1218
AN:
1091260
Other (OTH)
AF:
0.000951
AC:
56
AN:
58872
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.471
Heterozygous variant carriers
0
85
169
254
338
423
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
50
100
150
200
250
<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:
0.000630
AC:
96
AN:
152316
Hom.:
0
Cov.:
33
AF XY:
0.000591
AC XY:
44
AN XY:
74498
show subpopulations
African (AFR)
AF:
0.000144
AC:
6
AN:
41572
American (AMR)
AF:
0.000196
AC:
3
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.00519
AC:
18
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5174
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.000188
AC:
2
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000985
AC:
67
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.497
Heterozygous variant carriers
0
4
9
13
18
22
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:
0.00125
Hom.:
0
Bravo
AF:
0.000722

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:5
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:3
Jan 22, 2020
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jan 01, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Feb 01, 2025
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

PCNT: BP4, BP7 -

Jun 25, 2015
Eurofins Ntd Llc (ga)
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Microcephalic osteodysplastic primordial dwarfism type II Uncertain:1Benign:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Jun 01, 2020
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:1
Sep 29, 2016
Genetic Services Laboratory, University of Chicago
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.91
CADD
Benign
0.083
DANN
Benign
0.59
PhyloP100
-3.5
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs372175239; hg19: chr21-47811215; COSMIC: COSV64028015; API