14-99501368-A-G

Position:

chr14-99501368-A-G

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_001099402.2(CCNK):c.530A>G(p.Lys177Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000156 in 1,605,546 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

CCNK
NM_001099402.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.96

Variant links:

Genes affected

CCNK (HGNC:1596): (cyclin K) The protein encoded by this gene is a member of the transcription cyclin family. These cyclins may regulate transcription through their association with and activation of cyclin-dependent kinases (CDK) that phosphorylate the C-terminal domain (CTD) of the large subunit of RNA polymerase II. This gene product may play a dual role in regulating CDK and RNA polymerase II activities. [provided by RefSeq, Jul 2008]

CCNK links:

CCDC85C (HGNC:35459): (coiled-coil domain containing 85C) Predicted to be involved in cerebral cortex development. Located in adherens junction. [provided by Alliance of Genome Resources, Apr 2022]

CCDC85C links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAdExome4 at 24 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
CCNK	NM_001099402.2 linkuse as main transcript	c.530A>G	p.Lys177Arg	missense_variant	6/11	ENST00000389879.9	NP_001092872.1
CCDC85C	NM_001144995.2 linkuse as main transcript	c.*13878T>C		3_prime_UTR_variant	6/6	ENST00000380243.9	NP_001138467.1
CCNK	XM_005268154.5 linkuse as main transcript	c.530A>G	p.Lys177Arg	missense_variant	6/11		XP_005268211.1
CCNK	XM_047431839.1 linkuse as main transcript	c.530A>G	p.Lys177Arg	missense_variant	7/12		XP_047287795.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CCNK	ENST00000389879.9 linkuse as main transcript	c.530A>G	p.Lys177Arg	missense_variant	6/11	5	NM_001099402.2	ENSP00000374529	P1	O75909-3
CCDC85C	ENST00000380243.9 linkuse as main transcript	c.*13878T>C		3_prime_UTR_variant	6/6	5	NM_001144995.2	ENSP00000369592	P1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152244

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000804

AC:

AN:

248904

Hom.:

AF XY:

0.00000740

AC XY:

AN XY:

135058

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000165

AC:

AN:

1453302

Hom.:

Cov.:

AF XY:

0.0000111

AC XY:

AN XY:

723472

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.0000217

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152244

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74388

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

ExAC

AF:

0.00000828

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 07, 2023

The c.530A>G (p.K177R) alteration is located in exon 6 (coding exon 5) of the CCNK gene. This alteration results from a A to G substitution at nucleotide position 530, causing the lysine (K) at amino acid position 177 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.33

BayesDel_addAF

Benign

-0.038

BayesDel_noAF

Benign

-0.28

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.52

D;T;.

Eigen

Pathogenic

0.72

Eigen_PC

Pathogenic

0.76

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.95

D;D;D

M_CAP

Benign

0.019

MetaRNN

Uncertain

0.53

D;D;D

MetaSVM

Benign

-0.79

MutationAssessor

Uncertain

2.1

M;.;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Pathogenic

0.83

PROVEAN

Uncertain

-2.8

D;D;D

REVEL

Benign

0.23

Sift

Uncertain

0.022

D;T;T

Sift4G

Uncertain

0.010

D;T;T

Polyphen

0.97

D;.;.

Vest4

0.69

MutPred

0.41

Loss of methylation at K177 (P = 0.0154);Loss of methylation at K177 (P = 0.0154);Loss of methylation at K177 (P = 0.0154);

MVP

0.67

MPC

1.7

ClinPred

0.80

GERP RS

6.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.59

gMVP

0.81

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.060

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.

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