rs202058504

Variant summary

Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong

The NM_018451.5(CPAP):​c.1586C>G​(p.Ser529*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000929 in 1,614,076 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000092 ( 0 hom. )

Consequence

CPAP
NM_018451.5 stop_gained

Scores

1
1
4

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:7U:1

Conservation

PhyloP100: 0.156

Publications

5 publications found
Variant links:
Genes affected
CPAP (HGNC:17272): (centromere protein J) This gene encodes a protein that belongs to the centromere protein family. During cell division, this protein plays a structural role in the maintenance of centrosome integrity and normal spindle morphology, and it is involved in microtubule disassembly at the centrosome. This protein can function as a transcriptional coactivator in the Stat5 signaling pathway, and also as a coactivator of NF-kappaB-mediated transcription, likely via its interaction with the coactivator p300/CREB-binding protein. Mutations in this gene are associated with primary autosomal recessive microcephaly, a disorder characterized by severely reduced brain size and cognitive disability. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Apr 2012]
CPAP Gene-Disease associations (from GenCC):
  • microcephaly 6 with or without short stature
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • microcephaly 6, primary, autosomal recessive
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
  • autosomal recessive primary microcephaly
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • Seckel syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 18 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 13-24906452-G-C is Pathogenic according to our data. Variant chr13-24906452-G-C is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 158194.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018451.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CPAP
NM_018451.5
MANE Select
c.1586C>Gp.Ser529*
stop_gained
Exon 7 of 17NP_060921.3
CPAP
NR_047594.2
n.1753C>G
non_coding_transcript_exon
Exon 7 of 18
CPAP
NR_047595.2
n.1753C>G
non_coding_transcript_exon
Exon 7 of 16

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CPAP
ENST00000381884.9
TSL:1 MANE Select
c.1586C>Gp.Ser529*
stop_gained
Exon 7 of 17ENSP00000371308.4Q9HC77-1
CPAP
ENST00000616936.4
TSL:1
n.1586C>G
non_coding_transcript_exon
Exon 7 of 16ENSP00000477511.1Q9HC77-2
CPAP
ENST00000926443.1
c.1586C>Gp.Ser529*
stop_gained
Exon 7 of 18ENSP00000596502.1

Frequencies

GnomAD3 genomes
AF:
0.0000985
AC:
15
AN:
152226
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
Gnomad ASJ
AF:
0.00
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:
0.0000956
AC:
24
AN:
250986
AF XY:
0.0000884
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000203
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.000141
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000923
AC:
135
AN:
1461850
Hom.:
0
Cov.:
34
AF XY:
0.0000880
AC XY:
64
AN XY:
727222
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.000157
AC:
7
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86238
European-Finnish (FIN)
AF:
0.0000374
AC:
2
AN:
53416
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.000111
AC:
123
AN:
1112002
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
9
18
26
35
44
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.0000985
AC:
15
AN:
152226
Hom.:
0
Cov.:
33
AF XY:
0.000108
AC XY:
8
AN XY:
74360
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41470
American (AMR)
AF:
0.000196
AC:
3
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000162
AC:
11
AN:
68030
Other (OTH)
AF:
0.000478
AC:
1
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.522
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000209
Hom.:
0
Bravo
AF:
0.000102
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000494
AC:
6
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

ClinVar submissions
Significance:Pathogenic/Likely pathogenic
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
4
-
-
Microcephaly 6, primary, autosomal recessive (4)
2
1
-
not provided (3)
1
-
-
Microcephaly 6, primary, autosomal recessive;C3888212:Seckel syndrome 4 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.39
D
BayesDel_noAF
Uncertain
0.070
CADD
Pathogenic
27
DANN
Benign
0.96
Eigen
Benign
0.021
Eigen_PC
Benign
-0.38
FATHMM_MKL
Benign
0.28
N
PhyloP100
0.16
Vest4
0.64
GERP RS
-2.1
Mutation Taster
=10/190
disease causing (ClinVar)

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: rs202058504; hg19: chr13-25480590; API