14-99492837-G-A

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP2PP3

The NM_001099402.2(CCNK):​c.160G>A​(p.Ala54Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000311 in 1,607,158 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

CCNK
NM_001099402.2 missense

Scores

8
4
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.81

Publications

2 publications found
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 Gene-Disease associations (from GenCC):
  • intellectual developmental disorder with hypertelorism and distinctive facies
    Inheritance: AD, Unknown Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 1 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Gene score misZ: 3.305 (above the threshold of 3.09). Trascript score misZ: 1.9964 (below the threshold of 3.09). GenCC associations: The gene is linked to intellectual developmental disorder with hypertelorism and distinctive facies.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.775

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001099402.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CCNK
NM_001099402.2
MANE Select
c.160G>Ap.Ala54Thr
missense
Exon 2 of 11NP_001092872.1O75909-3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CCNK
ENST00000389879.9
TSL:5 MANE Select
c.160G>Ap.Ala54Thr
missense
Exon 2 of 11ENSP00000374529.5O75909-3
CCNK
ENST00000555049.5
TSL:1
c.160G>Ap.Ala54Thr
missense
Exon 2 of 11ENSP00000452307.1G3V5E1
CCNK
ENST00000940763.1
c.160G>Ap.Ala54Thr
missense
Exon 2 of 11ENSP00000610822.1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152082
Hom.:
0
Cov.:
32
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:
0.0000945
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000415
AC:
1
AN:
241148
AF XY:
0.00000762
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000275
AC:
4
AN:
1455076
Hom.:
0
Cov.:
31
AF XY:
0.00000276
AC XY:
2
AN XY:
724020
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32812
American (AMR)
AF:
0.00
AC:
0
AN:
42330
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25888
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39628
South Asian (SAS)
AF:
0.0000118
AC:
1
AN:
85090
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53302
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5740
European-Non Finnish (NFE)
AF:
0.00000270
AC:
3
AN:
1110204
Other (OTH)
AF:
0.00
AC:
0
AN:
60082
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
152082
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74272
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41404
American (AMR)
AF:
0.00
AC:
0
AN:
15270
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4812
European-Finnish (FIN)
AF:
0.0000945
AC:
1
AN:
10584
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.625
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000354
Hom.:
0
Bravo
AF:
0.00000378
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0

ClinVar

ClinVar submissions as Germline
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.98
BayesDel_addAF
Pathogenic
0.20
D
BayesDel_noAF
Uncertain
0.050
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.30
T
Eigen
Pathogenic
0.90
Eigen_PC
Pathogenic
0.92
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Benign
0.78
T
M_CAP
Benign
0.019
T
MetaRNN
Pathogenic
0.77
D
MetaSVM
Benign
-1.2
T
MutationAssessor
Benign
2.0
M
PhyloP100
9.8
PrimateAI
Pathogenic
0.88
D
PROVEAN
Uncertain
-3.5
D
REVEL
Uncertain
0.49
Sift
Uncertain
0.015
D
Sift4G
Benign
0.096
T
Polyphen
1.0
D
Vest4
0.93
MVP
0.81
MPC
2.6
ClinPred
0.95
D
GERP RS
6.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.79
gMVP
0.89
Mutation Taster
=24/76
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs749729510; hg19: chr14-99959174; COSMIC: COSV66274837; COSMIC: COSV66274837; API