Genetic Variant PCNT:p.Glu1828Lys (chr21-46411555-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_006031.6(PCNT):c.5482G>A(p.Glu1828Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,066 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PCNT
NM_006031.6 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.24

Publications

1 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

PCNT links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.17315534).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006031.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PCNT	NM_006031.6	MANE Select	c.5482G>A	p.Glu1828Lys	missense	Exon 28 of 47	NP_006022.3
	PCNT	NM_001315529.2		c.5128G>A	p.Glu1710Lys	missense	Exon 28 of 47	NP_001302458.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
PCNT	ENST00000359568.10	TSL:1 MANE Select	c.5482G>A	p.Glu1828Lys	missense	Exon 28 of 47	ENSP00000352572.5
PCNT	ENST00000480896.5	TSL:1	c.5128G>A	p.Glu1710Lys	missense	Exon 28 of 47	ENSP00000511989.1
PCNT	ENST00000695558.1		c.5515G>A	p.Glu1839Lys	missense	Exon 29 of 48	ENSP00000512015.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000821

AC:

AN:

243524

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.0000678

Gnomad AMR exome

AF:

0.0000291

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1460066

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726356

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33456

American (AMR)

AF:

0.0000224

AC:

AN:

44596

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26114

East Asian (EAS)

AF:

0.00

AC:

AN:

39686

South Asian (SAS)

AF:

0.00

AC:

AN:

86248

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52302

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111566

Other (OTH)

AF:

0.00

AC:

AN:

60334

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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

Cov.:

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.077

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.50

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.082

Eigen

Benign

-0.24

Eigen_PC

Benign

-0.23

FATHMM_MKL

Uncertain

0.81

LIST_S2

Benign

0.85

M_CAP

Benign

0.019

MetaRNN

Benign

0.17

MetaSVM

Benign

-0.85

MutationAssessor

Uncertain

2.3

PhyloP100

1.2

PrimateAI

Uncertain

0.53

PROVEAN

Benign

-2.2

REVEL

Benign

0.069

Sift

Benign

0.11

Sift4G

Benign

0.15

Polyphen

0.83

Vest4

0.34

MutPred

0.16

Gain of ubiquitination at E1828 (P = 0.0048)

MVP

0.46

MPC

0.30

ClinPred

0.21

GERP RS

4.0

Varity_R

0.19

gMVP

0.42

Mutation Taster

=93/7

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over