NM_018249.6:c.5578T>C

Variant names:

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_018249.6(CDK5RAP2):c.5578T>C(p.Leu1860Leu) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00286 in 1,614,160 control chromosomes in the GnomAD database, including 194 homozygotes. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0034 ( 24 hom., cov: 33)

Exomes 𝑓: 0.0028 ( 170 hom. )

Consequence

CDK5RAP2
NM_018249.6 splice_region, synonymous

Scores

Splicing: ADA: 0.0003015

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: 0.809

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]

CDK5RAP2 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.61).

BP6

Variant 9-120394512-A-G is Benign according to our data. Variant chr9-120394512-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 158167.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr9-120394512-A-G is described in Lovd as [Likely_benign].

BA1

GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.0802 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CDK5RAP2	NM_018249.6 link	c.5578T>C	p.Leu1860Leu	splice_region_variant, synonymous_variant	Exon 36 of 38	ENST00000349780.9	NP_060719.4	Q96SN8-1B3KVI2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CDK5RAP2	ENST00000349780.9 link	c.5578T>C	p.Leu1860Leu	splice_region_variant, synonymous_variant	Exon 36 of 38	1	NM_018249.6	ENSP00000343818.4		Q96SN8-1

Frequencies

GnomAD3 genomes

AF:

0.00344

AC:

523

AN:

152188

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000523

Gnomad ASJ

AF:

0.00634

Gnomad EAS

AF:

0.0867

Gnomad SAS

AF:

0.00352

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000162

Gnomad OTH

AF:

0.00430

GnomAD3 exomes

AF:

0.00748

AC:

1880

AN:

251478

Hom.:

AF XY:

0.00710

AC XY:

965

AN XY:

135918

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00813

Gnomad EAS exome

AF:

0.0931

Gnomad SAS exome

AF:

0.00150

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000967

Gnomad OTH exome

AF:

0.00342

GnomAD4 exome

AF:

0.00280

AC:

4089

AN:

1461854

Hom.:

170

Cov.:

AF XY:

0.00268

AC XY:

1952

AN XY:

727242

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000894

Gnomad4 ASJ exome

AF:

0.00796

Gnomad4 EAS exome

AF:

0.0851

Gnomad4 SAS exome

AF:

0.00157

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000459

Gnomad4 OTH exome

AF:

0.00512

GnomAD4 genome

AF:

0.00343

AC:

523

AN:

152306

Hom.:

Cov.:

AF XY:

0.00392

AC XY:

292

AN XY:

74492

show subpopulations

Gnomad4 AFR

AF:

0.000168

Gnomad4 AMR

AF:

0.000523

Gnomad4 ASJ

AF:

0.00634

Gnomad4 EAS

AF:

0.0869

Gnomad4 SAS

AF:

0.00332

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000162

Gnomad4 OTH

AF:

0.00473

Alfa

AF:

0.00444

Hom.:

Bravo

AF:

0.00436

Asia WGS

AF:

0.0230

AC:

AN:

3478

EpiCase

AF:

0.000327

EpiControl

AF:

0.000119

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

Feb 08, 2013

Genetic Services Laboratory, University of Chicago

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Nov 14, 2017

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

not provided

Benign:2

Breakthrough Genomics, Breakthrough Genomics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Jan 28, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Microcephaly 3, primary, autosomal recessive

Benign:1

Mar 22, 2022

Fulgent Genetics, Fulgent Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Primary Microcephaly, Recessive

Benign:1

Jun 14, 2016

Illumina Laboratory Services, Illumina

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

CDK5RAP2-related disorder

Benign:1

Nov 14, 2019

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as 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

-0.61

CADD

Benign

9.2

DANN

Benign

0.65

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00030

dbscSNV1_RF

Benign

0.066

SpliceAI score (max)

0.35

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.35

Position offset: -4

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over