9-120439563-G-A

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 2P and 10B. PM2BP4_StrongBP6BP7BS1

The NM_018249.6(CDK5RAP2):​c.3558C>T​(p.Leu1186=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00022 in 1,614,204 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00096 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00014 ( 1 hom. )

Consequence

CDK5RAP2
NM_018249.6 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: -0.392
Variant links:
Genes affected
CDK5RAP2 (HGNC:18672): (CDK5 regulatory subunit associated protein 2) This gene encodes a regulator of CDK5 (cyclin-dependent kinase 5) activity. The protein encoded by this gene is localized to the centrosome and Golgi complex, interacts with CDK5R1 and pericentrin (PCNT), plays a role in centriole engagement and microtubule nucleation, and has been linked to primary microcephaly and Alzheimer's disease. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2013]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.7).
BP6
Variant 9-120439563-G-A is Benign according to our data. Variant chr9-120439563-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 210635.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=1}. Variant chr9-120439563-G-A is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=-0.392 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000958 (146/152332) while in subpopulation AFR AF= 0.00339 (141/41576). AF 95% confidence interval is 0.00294. There are 0 homozygotes in gnomad4. There are 64 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CDK5RAP2NM_018249.6 linkuse as main transcriptc.3558C>T p.Leu1186= synonymous_variant 24/38 ENST00000349780.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CDK5RAP2ENST00000349780.9 linkuse as main transcriptc.3558C>T p.Leu1186= synonymous_variant 24/381 NM_018249.6 P4Q96SN8-1

Frequencies

GnomAD3 genomes
AF:
0.000959
AC:
146
AN:
152214
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00340
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000314
AC:
79
AN:
251200
Hom.:
0
AF XY:
0.000214
AC XY:
29
AN XY:
135738
show subpopulations
Gnomad AFR exome
AF:
0.00412
Gnomad AMR exome
AF:
0.000174
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000143
AC:
209
AN:
1461872
Hom.:
1
Cov.:
33
AF XY:
0.000135
AC XY:
98
AN XY:
727234
show subpopulations
Gnomad4 AFR exome
AF:
0.00445
Gnomad4 AMR exome
AF:
0.000268
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000696
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000198
Gnomad4 OTH exome
AF:
0.000281
GnomAD4 genome
AF:
0.000958
AC:
146
AN:
152332
Hom.:
0
Cov.:
32
AF XY:
0.000859
AC XY:
64
AN XY:
74490
show subpopulations
Gnomad4 AFR
AF:
0.00339
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000460
Hom.:
0
Bravo
AF:
0.00120
EpiCase
AF:
0.000109
EpiControl
AF:
0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoFeb 04, 2015- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 15, 2024- -
CDK5RAP2-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJun 04, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.70
CADD
Benign
8.0
DANN
Benign
0.67

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs146736925; hg19: chr9-123201841; API