rs146736925

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.Leu1186Leu) 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: {Benign=1, Uncertain_significance=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 rank MANE Protein UniProt
CDK5RAP2NM_018249.6 linkc.3558C>T p.Leu1186Leu synonymous_variant Exon 24 of 38 ENST00000349780.9 NP_060719.4 Q96SN8-1B3KVI2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CDK5RAP2ENST00000349780.9 linkc.3558C>T p.Leu1186Leu synonymous_variant Exon 24 of 38 1 NM_018249.6 ENSP00000343818.4 Q96SN8-1

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
Feb 04, 2015
Genetic Services Laboratory, University of Chicago
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Benign:1
Jan 28, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

CDK5RAP2-related disorder Benign:1
Jun 04, 2019
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This 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