9-120443734-G-C

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_018249.6(CDK5RAP2):ā€‹c.3034C>Gā€‹(p.Pro1012Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000197 in 1,614,004 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: š‘“ 0.00053 ( 0 hom., cov: 33)
Exomes š‘“: 0.00016 ( 1 hom. )

Consequence

CDK5RAP2
NM_018249.6 missense

Scores

19

Clinical Significance

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

Conservation

PhyloP100: -0.0200
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 -7 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.004523903).
BP6
Variant 9-120443734-G-C is Benign according to our data. Variant chr9-120443734-G-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 158137.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000532 (81/152210) while in subpopulation AFR AF= 0.000843 (35/41520). AF 95% confidence interval is 0.000622. There are 0 homozygotes in gnomad4. There are 52 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CDK5RAP2NM_018249.6 linkuse as main transcriptc.3034C>G p.Pro1012Ala missense_variant 23/38 ENST00000349780.9 NP_060719.4 Q96SN8-1B3KVI2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CDK5RAP2ENST00000349780.9 linkuse as main transcriptc.3034C>G p.Pro1012Ala missense_variant 23/381 NM_018249.6 ENSP00000343818.4 Q96SN8-1

Frequencies

GnomAD3 genomes
AF:
0.000533
AC:
81
AN:
152092
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000845
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00406
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.000956
GnomAD3 exomes
AF:
0.000498
AC:
125
AN:
251050
Hom.:
1
AF XY:
0.000546
AC XY:
74
AN XY:
135654
show subpopulations
Gnomad AFR exome
AF:
0.00129
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00439
Gnomad NFE exome
AF:
0.0000529
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000162
AC:
237
AN:
1461794
Hom.:
1
Cov.:
32
AF XY:
0.000161
AC XY:
117
AN XY:
727204
show subpopulations
Gnomad4 AFR exome
AF:
0.000956
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.00341
Gnomad4 NFE exome
AF:
0.00000989
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.000532
AC:
81
AN:
152210
Hom.:
0
Cov.:
33
AF XY:
0.000699
AC XY:
52
AN XY:
74400
show subpopulations
Gnomad4 AFR
AF:
0.000843
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00406
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000946
Alfa
AF:
0.0000568
Hom.:
0
Bravo
AF:
0.000283
ESP6500AA
AF:
0.00136
AC:
6
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000379
AC:
46
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

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

Submissions by phenotype

Microcephaly 3, primary, autosomal recessive Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoJun 26, 2014- -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 31, 2019- -
CDK5RAP2-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMar 28, 2023This 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
AlphaMissense
Benign
0.059
BayesDel_addAF
Benign
-0.57
T
BayesDel_noAF
Benign
-0.64
CADD
Benign
0.23
DANN
Benign
0.58
DEOGEN2
Benign
0.046
.;T;.;.
Eigen
Benign
-1.3
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.068
N
LIST_S2
Benign
0.83
T;T;T;T
M_CAP
Benign
0.0036
T
MetaRNN
Benign
0.0045
T;T;T;T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
0.69
.;N;N;.
PrimateAI
Benign
0.20
T
PROVEAN
Benign
-0.37
.;N;N;N
REVEL
Benign
0.0090
Sift
Benign
0.28
.;T;T;T
Sift4G
Benign
0.79
T;T;T;T
Polyphen
0.0, 0.019, 0.0020
.;B;B;B
Vest4
0.14
MVP
0.20
MPC
0.076
ClinPred
0.0096
T
GERP RS
-0.38
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2
Varity_R
0.021
gMVP
0.060

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: rs141496431; hg19: chr9-123206012; API