rs141635334

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_006031.6(PCNT):​c.6761G>A​(p.Cys2254Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000657 in 1,565,204 control chromosomes in the GnomAD database, including 12 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C2254F) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00080 ( 2 hom., cov: 32)
Exomes 𝑓: 0.00064 ( 10 hom. )

Consequence

PCNT
NM_006031.6 missense

Scores

18

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: -0.878

Publications

6 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: Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen, G2P, Orphanet
  • 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 -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.004745096).
BP6
Variant 21-46416679-G-A is Benign according to our data. Variant chr21-46416679-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 159641.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

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.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PCNT
NM_006031.6
MANE Select
c.6761G>Ap.Cys2254Tyr
missense
Exon 30 of 47NP_006022.3
PCNT
NM_001315529.2
c.6407G>Ap.Cys2136Tyr
missense
Exon 30 of 47NP_001302458.1O95613-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PCNT
ENST00000359568.10
TSL:1 MANE Select
c.6761G>Ap.Cys2254Tyr
missense
Exon 30 of 47ENSP00000352572.5O95613-1
PCNT
ENST00000480896.5
TSL:1
c.6407G>Ap.Cys2136Tyr
missense
Exon 30 of 47ENSP00000511989.1O95613-2
PCNT
ENST00000695558.1
c.6794G>Ap.Cys2265Tyr
missense
Exon 31 of 48ENSP00000512015.1A0A8Q3SHZ3

Frequencies

GnomAD3 genomes
AF:
0.000802
AC:
122
AN:
152174
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000482
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.0311
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000162
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.00112
AC:
233
AN:
207318
AF XY:
0.00115
show subpopulations
Gnomad AFR exome
AF:
0.0000670
Gnomad AMR exome
AF:
0.0000336
Gnomad ASJ exome
AF:
0.0332
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000339
Gnomad OTH exome
AF:
0.00183
GnomAD4 exome
AF:
0.000641
AC:
906
AN:
1413030
Hom.:
10
Cov.:
34
AF XY:
0.000651
AC XY:
454
AN XY:
697394
show subpopulations
African (AFR)
AF:
0.0000310
AC:
1
AN:
32294
American (AMR)
AF:
0.0000252
AC:
1
AN:
39742
Ashkenazi Jewish (ASJ)
AF:
0.0276
AC:
615
AN:
22264
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39350
South Asian (SAS)
AF:
0.0000259
AC:
2
AN:
77286
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50212
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5452
European-Non Finnish (NFE)
AF:
0.000163
AC:
177
AN:
1088216
Other (OTH)
AF:
0.00189
AC:
110
AN:
58214
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.507
Heterozygous variant carriers
0
57
114
170
227
284
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome 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
GnomAD4 genome
AF:
0.000802
AC:
122
AN:
152174
Hom.:
2
Cov.:
32
AF XY:
0.000753
AC XY:
56
AN XY:
74340
show subpopulations
African (AFR)
AF:
0.0000482
AC:
2
AN:
41460
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.0311
AC:
108
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000162
AC:
11
AN:
68022
Other (OTH)
AF:
0.000478
AC:
1
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.517
Heterozygous variant carriers
0
7
13
20
26
33
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<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:
0.00124
Hom.:
4
Bravo
AF:
0.000824
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.000228
AC:
1
ESP6500EA
AF:
0.000940
AC:
8
ExAC
AF:
0.000954
AC:
115

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Microcephalic osteodysplastic primordial dwarfism type II (1)
-
-
1
not provided (1)
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.097
BayesDel_addAF
Benign
-0.53
T
BayesDel_noAF
Benign
-0.70
CADD
Benign
0.12
DANN
Benign
0.65
DEOGEN2
Benign
0.031
T
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.012
N
LIST_S2
Benign
0.56
T
M_CAP
Benign
0.024
T
MetaRNN
Benign
0.0047
T
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
1.4
L
PhyloP100
-0.88
PrimateAI
Benign
0.23
T
PROVEAN
Benign
0.39
N
REVEL
Benign
0.082
Sift
Benign
1.0
T
Sift4G
Benign
0.39
T
Polyphen
0.021
B
Vest4
0.17
MVP
0.17
MPC
0.49
ClinPred
0.015
T
GERP RS
-1.7
Varity_R
0.040
gMVP
0.23
Mutation Taster
=98/2
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: rs141635334; hg19: chr21-47836593; API