chr7-39951119-G-C

Variant names:

• chr7-39951119-G-C
• rs1554317112
• NM_003718.5:c.478G>C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_003718.5(CDK13):​c.478G>C​(p.Gly160Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000915 in 1,092,704 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 Uncertain significance (★★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 9.2e-7 (0 hom.)
• Consequence: CDK13 NM_003718.5 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:3
• Conservation: PhyloP100: 2.39

Genes affected

CDK13 (HGNC:1733): (cyclin dependent kinase 13) The protein encoded by this gene is a member of the cyclin-dependent serine/threonine protein kinase family. Members of this family are well known for their essential roles as master switches in cell cycle control. The exact function of this protein has not yet been determined, but it may play a role in mRNA processing and may be involved in regulation of hematopoiesis. Alternatively spliced transcript variants have been described.[provided by RefSeq, Dec 2009]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.15421104).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CDK13	NM_003718.5	c.478G>C	p.Gly160Arg	missense_variant	Exon 1 of 14	ENST00000181839.10	NP_003709.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CDK13	ENST00000181839.10	c.478G>C	p.Gly160Arg	missense_variant	Exon 1 of 14	1	NM_003718.5	ENSP00000181839.4
CDK13	ENST00000340829.10	c.478G>C	p.Gly160Arg	missense_variant	Exon 1 of 14	1		ENSP00000340557.5
CDK13	ENST00000643868.1	c.100G>C	p.Gly34Arg	missense_variant	Exon 1 of 1			ENSP00000495083.1
CDK13	ENST00000646039.1	c.-183G>C		upstream_gene_variant				ENSP00000494168.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 9.15e-7 AC: 1 AN: 1092704 Hom.: 0 Cov.: 33 AF XY: 0.00000193 AC XY: 1 AN XY: 517130

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.000119

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000936 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Uncertain:2

Oct 21, 2020

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Not observed in large population cohorts (Lek et al., 2016); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Dec 25, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 160 of the CDK13 protein (p.Gly160Arg). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt CDK13 protein function. ClinVar contains an entry for this variant (Variation ID: 521529). This variant has not been reported in the literature in individuals affected with CDK13-related conditions. This variant is not present in population databases (gnomAD no frequency). -

Inborn genetic diseases Uncertain:1

Jan 19, 2017

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.42
BayesDel_addAF	Benign	-0.19	T
BayesDel_noAF	Benign	-0.52
CADD	Uncertain	25
DANN	Uncertain	0.99
DEOGEN2	Benign	0.12	T;.
Eigen	Benign	-0.42
Eigen_PC	Benign	-0.27
FATHMM_MKL	Benign	0.20	N
LIST_S2	Benign	0.72	T;T
M_CAP	Pathogenic	0.48	D
MetaRNN	Benign	0.15	T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.0	N;N
PrimateAI	Pathogenic	0.92	D
PROVEAN	Benign	-0.80	N;N
REVEL	Benign	0.031
Sift	Uncertain	0.0050	D;D
Sift4G	Uncertain	0.042	D;D
Polyphen		0.053	B;B
Vest4		0.13
MutPred		0.22		Gain of helix (P = 0.0325);Gain of helix (P = 0.0325);
MVP		0.26
MPC		2.0
ClinPred		0.42	T
GERP RS		2.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.9
Varity_R		0.25
gMVP		0.20

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

Other links and lift over

dbSNP: rs1554317112; hg19: chr7-39990718;