rs76287849

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_006031.6(PCNT):​c.7914-4G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00125 in 1,550,706 control chromosomes in the GnomAD database, including 30 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.0070 ( 15 hom., cov: 34)
Exomes 𝑓: 0.00062 ( 15 hom. )

Consequence

PCNT
NM_006031.6 splice_region, intron

Scores

2
Splicing: ADA: 0.00002185
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: -1.14

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: 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 -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.9).
BP6
Variant 21-46430503-G-A is Benign according to our data. Variant chr21-46430503-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 159669.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.007 (1066/152334) while in subpopulation AFR AF = 0.0245 (1017/41576). AF 95% confidence interval is 0.0232. There are 15 homozygotes in GnomAd4. There are 538 alleles in the male GnomAd4 subpopulation. Median coverage is 34. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 15 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.7914-4G>A
splice_region intron
N/ANP_006022.3
PCNT
NM_001315529.2
c.7560-4G>A
splice_region intron
N/ANP_001302458.1O95613-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
PCNT
ENST00000359568.10
TSL:1 MANE Select
c.7914-4G>A
splice_region intron
N/AENSP00000352572.5O95613-1
PCNT
ENST00000480896.5
TSL:1
c.7560-4G>A
splice_region intron
N/AENSP00000511989.1O95613-2
PCNT
ENST00000695558.1
c.7947-4G>A
splice_region intron
N/AENSP00000512015.1A0A8Q3SHZ3

Frequencies

GnomAD3 genomes
AF:
0.00697
AC:
1061
AN:
152216
Hom.:
15
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0244
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00249
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:
0.0000441
Gnomad OTH
AF:
0.00334
GnomAD2 exomes
AF:
0.00137
AC:
217
AN:
157900
AF XY:
0.000986
show subpopulations
Gnomad AFR exome
AF:
0.0211
Gnomad AMR exome
AF:
0.000885
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000653
Gnomad OTH exome
AF:
0.000447
GnomAD4 exome
AF:
0.000624
AC:
873
AN:
1398372
Hom.:
15
Cov.:
58
AF XY:
0.000528
AC XY:
364
AN XY:
689830
show subpopulations
African (AFR)
AF:
0.0217
AC:
686
AN:
31590
American (AMR)
AF:
0.00117
AC:
42
AN:
35808
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25182
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35782
South Asian (SAS)
AF:
0.0000379
AC:
3
AN:
79236
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49124
Middle Eastern (MID)
AF:
0.00115
AC:
5
AN:
4330
European-Non Finnish (NFE)
AF:
0.0000454
AC:
49
AN:
1079406
Other (OTH)
AF:
0.00152
AC:
88
AN:
57914
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
53
105
158
210
263
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
26
52
78
104
130
<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:
0.00700
AC:
1066
AN:
152334
Hom.:
15
Cov.:
34
AF XY:
0.00722
AC XY:
538
AN XY:
74486
show subpopulations
African (AFR)
AF:
0.0245
AC:
1017
AN:
41576
American (AMR)
AF:
0.00248
AC:
38
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68024
Other (OTH)
AF:
0.00331
AC:
7
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
50
100
150
200
250
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome 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
Alfa
AF:
0.00435
Hom.:
2
Bravo
AF:
0.00757
Asia WGS
AF:
0.00115
AC:
4
AN:
3478

ClinVar

ClinVar submissions
Significance:Benign/Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
4
not provided (4)
-
-
2
Microcephalic osteodysplastic primordial dwarfism type II (2)
-
-
2
not specified (2)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.90
CADD
Benign
0.19
DANN
Benign
0.48
PhyloP100
-1.1
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000022
dbscSNV1_RF
Benign
0.0040
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: rs76287849; hg19: chr21-47850417; API
For research and educational, non-commercial use only. Not for clinical or diagnostic use. GeneBe does not provide medical advice. Data use for AI modeling is prohibited: if used, the cost is $0.001 per byte of downloaded uncompressed data.