rs574728262

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_006031.6(PCNT):​c.8873G>A​(p.Arg2958His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000328 in 1,614,048 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000031 ( 1 hom. )

Consequence

PCNT
NM_006031.6 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: -0.371
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.01695922).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PCNTNM_006031.6 linkc.8873G>A p.Arg2958His missense_variant Exon 39 of 47 ENST00000359568.10 NP_006022.3 O95613-1
PCNTNM_001315529.2 linkc.8282G>A p.Arg2761His missense_variant Exon 39 of 47 NP_001302458.1 O95613-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PCNTENST00000359568.10 linkc.8873G>A p.Arg2958His missense_variant Exon 39 of 47 1 NM_006031.6 ENSP00000352572.5 O95613-1

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152220
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000620
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000519
AC:
13
AN:
250630
Hom.:
0
AF XY:
0.0000590
AC XY:
8
AN XY:
135676
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000884
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000308
AC:
45
AN:
1461710
Hom.:
1
Cov.:
33
AF XY:
0.0000344
AC XY:
25
AN XY:
727168
show subpopulations
Gnomad4 AFR exome
AF:
0.000149
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000278
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000630
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000525
AC:
8
AN:
152338
Hom.:
0
Cov.:
33
AF XY:
0.0000940
AC XY:
7
AN XY:
74482
show subpopulations
Gnomad4 AFR
AF:
0.000120
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000621
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000869
ExAC
AF:
0.0000741
AC:
9

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Microcephalic osteodysplastic primordial dwarfism type II Uncertain:2
Oct 31, 2018
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Feb 13, 2014
Genetic Services Laboratory, University of Chicago
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

PCNT-related disorder Uncertain:1
Jun 14, 2024
PreventionGenetics, part of Exact Sciences
Significance: Uncertain significance
Review Status: no assertion criteria provided
Collection Method: clinical testing

The PCNT c.8873G>A variant is predicted to result in the amino acid substitution p.Arg2958His. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.033% of alleles in individuals of South Asian descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.094
BayesDel_addAF
Benign
-0.57
T
BayesDel_noAF
Benign
-0.76
CADD
Benign
1.8
DANN
Benign
0.68
DEOGEN2
Benign
0.031
T
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.040
N
LIST_S2
Benign
0.44
T
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.017
T
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
0.20
N
PrimateAI
Benign
0.28
T
PROVEAN
Benign
-0.86
N
REVEL
Benign
0.016
Sift
Benign
0.13
T
Sift4G
Benign
0.14
T
Polyphen
0.0010
B
Vest4
0.036
MutPred
0.19
Loss of methylation at R2958 (P = 0.0068);
MVP
0.26
MPC
0.10
ClinPred
0.011
T
GERP RS
1.5
Varity_R
0.021
gMVP
0.081

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs574728262; hg19: chr21-47855938; COSMIC: COSV100856164; COSMIC: COSV100856164; API