20-33363039-G-C

Variant names:

• chr20-33363039-G-C
• rs291671
• NM_016408.4:c.1543-2548C>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_016408.4(CDK5RAP1):​c.1543-2548C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: CDK5RAP1 NM_016408.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.19
• Publications: 24 publications found

Genes affected

CDK5RAP1 (HGNC:15880): (CDK5 regulatory subunit associated protein 1) This gene encodes a regulator of cyclin-dependent kinase 5 activity. This protein has also been reported to modify RNA by adding a methylthio-group and may thus have a dual function as an RNA methylthiotransferase and as an inhibitor of cyclin-dependent kinase 5 activity. Alternative splicing results in multiple transcript variants that encode different isoforms. [provided by RefSeq, May 2013]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.92).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016408.4. 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
	CDK5RAP1	NM_016408.4	MANE Select	c.1543-2548C>G		intron	N/A	NP_057492.2
	CDK5RAP1	NM_001365728.1		c.1585-2548C>G		intron	N/A	NP_001352657.1	Q96SZ6-1
	CDK5RAP1	NM_016082.4		c.1546-2548C>G		intron	N/A	NP_057166.4	Q96SZ6

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CDK5RAP1	ENST00000346416.7	TSL:1 MANE Select	c.1543-2548C>G		intron	N/A	ENSP00000217372.2	Q96SZ6-3
	CDK5RAP1	ENST00000339269.5	TSL:1	c.1312-2548C>G		intron	N/A	ENSP00000341840.5	Q96SZ6-4
	CDK5RAP1	ENST00000874266.1		c.1636-2548C>G		intron	N/A	ENSP00000544325.1

Frequencies

GnomAD3 genomes Cov.: 33

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.92
CADD	Benign	0.39
DANN	Benign	0.77
PhyloP100		-1.2

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: rs291671; hg19: chr20-31950845;