Genetic Variant PCNT:p.Glu2550Lys (chr21-46428548-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_006031.6(PCNT):c.7648G>A(p.Glu2550Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000656 in 152,394 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 34)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

PCNT
NM_006031.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.62

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 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PCNT	NM_006031.6	MANE Select	c.7648G>A	p.Glu2550Lys	missense	Exon 35 of 47	NP_006022.3
	PCNT	NM_001315529.2		c.7294G>A	p.Glu2432Lys	missense	Exon 35 of 47	NP_001302458.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
PCNT	ENST00000359568.10	TSL:1 MANE Select	c.7648G>A	p.Glu2550Lys	missense	Exon 35 of 47	ENSP00000352572.5
PCNT	ENST00000480896.5	TSL:1	c.7294G>A	p.Glu2432Lys	missense	Exon 35 of 47	ENSP00000511989.1
PCNT	ENST00000695558.1		c.7681G>A	p.Glu2561Lys	missense	Exon 36 of 48	ENSP00000512015.1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152276

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00

AC:

AN:

236880

AF XY:

0.00

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1455334

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

724108

African (AFR)

AF:

0.00

AC:

AN:

33428

American (AMR)

AF:

0.00

AC:

AN:

44548

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26084

East Asian (EAS)

AF:

0.00

AC:

AN:

39646

South Asian (SAS)

AF:

0.00

AC:

AN:

86026

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48984

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5096

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111396

Other (OTH)

AF:

0.00

AC:

AN:

60126

GnomAD4 genome

AF:

0.00000656

AC:

AN:

152394

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74524

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41600

American (AMR)

AF:

0.00

AC:

AN:

15314

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68038

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Microcephalic osteodysplastic primordial dwarfism type II (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Benign

-0.38

CADD

Uncertain

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.082

Eigen

Uncertain

0.51

Eigen_PC

Uncertain

0.42

FATHMM_MKL

Uncertain

0.87

LIST_S2

Benign

0.85

M_CAP

Benign

0.025

MetaRNN

Uncertain

0.63

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.4

PhyloP100

4.6

PrimateAI

Uncertain

0.56

PROVEAN

Uncertain

-3.1

REVEL

Benign

0.16

Sift

Benign

0.070

Sift4G

Benign

0.086

Polyphen

1.0

Vest4

0.56

MutPred

0.30

Gain of MoRF binding (P = 0.0051)

MVP

0.65

MPC

0.30

ClinPred

0.98

GERP RS

4.5

Varity_R

0.14

gMVP

0.30

Mutation Taster

=85/15

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over