rs61735806

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_006031.6(PCNT):​c.3615G>A​(p.Ala1205Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00142 in 1,613,980 control chromosomes in the GnomAD database, including 32 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Synonymous variant affecting the same amino acid position (i.e. A1205A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0077 ( 17 hom., cov: 33)
Exomes 𝑓: 0.00077 ( 15 hom. )

Consequence

PCNT
NM_006031.6 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -1.92

Publications

2 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 -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.84).
BP6
Variant 21-46389206-G-A is Benign according to our data. Variant chr21-46389206-G-A is described in ClinVar as Benign. ClinVar VariationId is 159592.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-1.91 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00767 (1169/152352) while in subpopulation AFR AF = 0.0266 (1105/41580). AF 95% confidence interval is 0.0253. There are 17 homozygotes in GnomAd4. There are 560 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 17 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PCNTNM_006031.6 linkc.3615G>A p.Ala1205Ala synonymous_variant Exon 19 of 47 ENST00000359568.10 NP_006022.3
PCNTNM_001315529.2 linkc.3261G>A p.Ala1087Ala synonymous_variant Exon 19 of 47 NP_001302458.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PCNTENST00000359568.10 linkc.3615G>A p.Ala1205Ala synonymous_variant Exon 19 of 47 1 NM_006031.6 ENSP00000352572.5

Frequencies

GnomAD3 genomes
AF:
0.00767
AC:
1168
AN:
152234
Hom.:
18
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0266
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00262
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:
0.0000882
Gnomad OTH
AF:
0.00860
GnomAD2 exomes
AF:
0.00199
AC:
499
AN:
251230
AF XY:
0.00140
show subpopulations
Gnomad AFR exome
AF:
0.0271
Gnomad AMR exome
AF:
0.00127
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000528
Gnomad OTH exome
AF:
0.000978
GnomAD4 exome
AF:
0.000773
AC:
1130
AN:
1461628
Hom.:
15
Cov.:
33
AF XY:
0.000667
AC XY:
485
AN XY:
727126
show subpopulations
African (AFR)
AF:
0.0274
AC:
916
AN:
33468
American (AMR)
AF:
0.00143
AC:
64
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.000227
AC:
9
AN:
39700
South Asian (SAS)
AF:
0.000162
AC:
14
AN:
86250
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53388
Middle Eastern (MID)
AF:
0.00122
AC:
7
AN:
5752
European-Non Finnish (NFE)
AF:
0.0000225
AC:
25
AN:
1111844
Other (OTH)
AF:
0.00157
AC:
95
AN:
60378
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.458
Heterozygous variant carriers
0
65
130
194
259
324
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
30
60
90
120
150
<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:
0.00767
AC:
1169
AN:
152352
Hom.:
17
Cov.:
33
AF XY:
0.00752
AC XY:
560
AN XY:
74494
show subpopulations
African (AFR)
AF:
0.0266
AC:
1105
AN:
41580
American (AMR)
AF:
0.00261
AC:
40
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000882
AC:
6
AN:
68038
Other (OTH)
AF:
0.00851
AC:
18
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
63
126
190
253
316
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.00218
Hom.:
1
Bravo
AF:
0.00870
Asia WGS
AF:
0.00260
AC:
9
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Feb 08, 2013
Genetic Services Laboratory, University of Chicago
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

May 06, 2016
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Microcephalic osteodysplastic primordial dwarfism type II Benign:2
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
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 and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Feb 10, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
Jan 27, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: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
-0.84
CADD
Benign
0.23
DANN
Benign
0.50
PhyloP100
-1.9
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: rs61735806; hg19: chr21-47809121; API