rs41309342

Variant names:

• chr9-120419862-G-A
• rs41309342
• NM_018249.6:c.4103C>T

Your query was ambiguous. Multiple possible variants found:

• chr9-120419862-G-A
• chr9-120419862-G-C

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_018249.6(CDK5RAP2):​c.4103C>T​(p.Ser1368Phe) variant causes a missense change. The variant allele was found at a frequency of 0.00000124 in 1,613,346 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as not provided (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S1368A) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: CDK5RAP2 NM_018249.6 missense
• Clinical Significance: not provided no classification provided O:1
• Conservation: PhyloP100: 4.28
• Publications: 1 publications found

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 Gene-Disease associations (from GenCC):

• autosomal recessive primary microcephaly

  Inheritance: AR Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
• microcephaly 3, primary, autosomal recessive

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• corpus callosum, agenesis of

  Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.30461884).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018249.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CDK5RAP2	NM_018249.6	MANE Select	c.4103C>T	p.Ser1368Phe	missense	Exon 27 of 38	NP_060719.4
	CDK5RAP2	NM_001410994.1		c.4100C>T	p.Ser1367Phe	missense	Exon 27 of 38	NP_001397923.1	A0A8I5QKL1
	CDK5RAP2	NM_001410993.1		c.4007C>T	p.Ser1336Phe	missense	Exon 26 of 37	NP_001397922.1	Q96SN8-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CDK5RAP2	ENST00000349780.9	TSL:1 MANE Select	c.4103C>T	p.Ser1368Phe	missense	Exon 27 of 38	ENSP00000343818.4	Q96SN8-1
	CDK5RAP2	ENST00000360190.8	TSL:1	c.4103C>T	p.Ser1368Phe	missense	Exon 27 of 37	ENSP00000353317.4	Q96SN8-4
	CDK5RAP2	ENST00000473282.6	TSL:1	n.*2927C>T		non_coding_transcript_exon	Exon 28 of 39	ENSP00000419265.1	F8WF55

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152176 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000241

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: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251480 AF XY: 0.00

Gnomad AFR exome AF: 0.0000615

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461170 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 726944

African (AFR) AF: 0.0000299 AC: 1 AN: 33464

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39694

South Asian (SAS) AF: 0.00 AC: 0 AN: 86242

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53414

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111352

Other (OTH) AF: 0.00 AC: 0 AN: 60380

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152176 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 74332

African (AFR) AF: 0.0000241 AC: 1 AN: 41448

American (AMR) AF: 0.00 AC: 0 AN: 15276

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5190

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10604

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68042

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.00000482 Hom.: 0

Bravo AF: 0.00000756

ClinVar

ClinVar submissions

Significance: not provided

Revision: no classification provided

Pathogenic	VUS	Benign	Condition
-	-	-	Microcephaly 3, primary, autosomal recessive (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.18
BayesDel_addAF	Uncertain	0.051	T
BayesDel_noAF	Uncertain	0.020
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.64	D
Eigen	Uncertain	0.60
Eigen_PC	Uncertain	0.56
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Uncertain	0.93	D
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.30	T
MetaSVM	Benign	-0.78	T
MutationAssessor	Uncertain	2.8	M
PhyloP100		4.3
PrimateAI	Benign	0.41	T
PROVEAN	Pathogenic	-4.4	D
REVEL	Benign	0.16
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.86
MutPred		0.30		Loss of phosphorylation at S1368 (P = 0.0292)
MVP		0.54
MPC		0.37
ClinPred		0.98	D
GERP RS		5.6
Varity_R		0.66
gMVP		0.27
Mutation Taster		=77/23	polymorphism

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

Other links and lift over

dbSNP: rs41309342; hg19: chr9-123182140; COSMIC: COSV62573027;