rs149444205

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_006031.6(PCNT):​c.8752-5A>C variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00791 in 1,614,088 control chromosomes in the GnomAD database, including 71 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0061 ( 4 hom., cov: 32)
Exomes 𝑓: 0.0081 ( 67 hom. )

Consequence

PCNT
NM_006031.6 splice_region, intron

Scores

2
Splicing: ADA: 0.00001651
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:10

Conservation

PhyloP100: -0.256
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.9).
BP6
Variant 21-46435899-A-C is Benign according to our data. Variant chr21-46435899-A-C is described in ClinVar as [Benign]. Clinvar id is 95342.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr21-46435899-A-C is described in Lovd as [Likely_benign]. Variant chr21-46435899-A-C is described in Lovd as [Benign].
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.00615 (936/152304) while in subpopulation SAS AF= 0.0195 (94/4824). AF 95% confidence interval is 0.0163. There are 4 homozygotes in gnomad4. There are 505 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 4 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PCNTNM_006031.6 linkc.8752-5A>C splice_region_variant, intron_variant Intron 38 of 46 ENST00000359568.10 NP_006022.3 O95613-1
PCNTNM_001315529.2 linkc.8161-5A>C splice_region_variant, intron_variant Intron 38 of 46 NP_001302458.1 O95613-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PCNTENST00000359568.10 linkc.8752-5A>C splice_region_variant, intron_variant Intron 38 of 46 1 NM_006031.6 ENSP00000352572.5 O95613-1

Frequencies

GnomAD3 genomes
AF:
0.00614
AC:
934
AN:
152186
Hom.:
4
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00707
Gnomad ASJ
AF:
0.00835
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.0191
Gnomad FIN
AF:
0.00876
Gnomad MID
AF:
0.0222
Gnomad NFE
AF:
0.00798
Gnomad OTH
AF:
0.00574
GnomAD3 exomes
AF:
0.00758
AC:
1894
AN:
249908
Hom.:
14
AF XY:
0.00838
AC XY:
1134
AN XY:
135276
show subpopulations
Gnomad AFR exome
AF:
0.000925
Gnomad AMR exome
AF:
0.00373
Gnomad ASJ exome
AF:
0.00874
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.0175
Gnomad FIN exome
AF:
0.00943
Gnomad NFE exome
AF:
0.00774
Gnomad OTH exome
AF:
0.00850
GnomAD4 exome
AF:
0.00809
AC:
11824
AN:
1461784
Hom.:
67
Cov.:
32
AF XY:
0.00853
AC XY:
6204
AN XY:
727212
show subpopulations
Gnomad4 AFR exome
AF:
0.00134
Gnomad4 AMR exome
AF:
0.00387
Gnomad4 ASJ exome
AF:
0.00972
Gnomad4 EAS exome
AF:
0.0000504
Gnomad4 SAS exome
AF:
0.0181
Gnomad4 FIN exome
AF:
0.00858
Gnomad4 NFE exome
AF:
0.00792
Gnomad4 OTH exome
AF:
0.00777
GnomAD4 genome
AF:
0.00615
AC:
936
AN:
152304
Hom.:
4
Cov.:
32
AF XY:
0.00678
AC XY:
505
AN XY:
74476
show subpopulations
Gnomad4 AFR
AF:
0.00120
Gnomad4 AMR
AF:
0.00706
Gnomad4 ASJ
AF:
0.00835
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.0195
Gnomad4 FIN
AF:
0.00876
Gnomad4 NFE
AF:
0.00798
Gnomad4 OTH
AF:
0.00568
Alfa
AF:
0.00523
Hom.:
2
Bravo
AF:
0.00494
Asia WGS
AF:
0.00664
AC:
23
AN:
3478
EpiCase
AF:
0.00660
EpiControl
AF:
0.00759

ClinVar

Significance: Benign
Submissions summary: Benign:10
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:4
-
Breakthrough Genomics, Breakthrough Genomics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Jan 30, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Mar 03, 2015
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Microcephalic osteodysplastic primordial dwarfism type II Benign:4
-
Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Sep 21, 2015
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. -

Nov 22, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:2
May 09, 2013
Eurofins Ntd Llc (ga)
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Sep 21, 2015
Genetic Services Laboratory, University of Chicago
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
-0.90
CADD
Benign
0.34
DANN
Benign
0.51

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000017
dbscSNV1_RF
Benign
0.012
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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs149444205; hg19: chr21-47855812; API