chr17-39462420-A-G

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_016507.4(CDK12):ā€‹c.349A>Gā€‹(p.Arg117Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000116 in 1,461,884 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.000012 ( 0 hom. )

Consequence

CDK12
NM_016507.4 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.735
Variant links:
Genes affected
CDK12 (HGNC:24224): (cyclin dependent kinase 12) Enables RNA polymerase II CTD heptapeptide repeat kinase activity and cyclin binding activity. Involved in phosphorylation of RNA polymerase II C-terminal domain; protein autophosphorylation; and regulation of MAP kinase activity. Located in nuclear speck. Part of cyclin K-CDK12 complex. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.16182405).
BS2
High AC in GnomAdExome4 at 17 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CDK12NM_016507.4 linkuse as main transcriptc.349A>G p.Arg117Gly missense_variant 1/14 ENST00000447079.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CDK12ENST00000447079.6 linkuse as main transcriptc.349A>G p.Arg117Gly missense_variant 1/141 NM_016507.4 P4Q9NYV4-1
CDK12ENST00000430627.6 linkuse as main transcriptc.349A>G p.Arg117Gly missense_variant 1/141 A1Q9NYV4-2
CDK12ENST00000584632.5 linkuse as main transcriptc.349A>G p.Arg117Gly missense_variant 1/135
CDK12ENST00000559663.2 linkuse as main transcriptc.349A>G p.Arg117Gly missense_variant, NMD_transcript_variant 1/215

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251222
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135840
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:
0.0000980
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000116
AC:
17
AN:
1461884
Hom.:
0
Cov.:
32
AF XY:
0.0000234
AC XY:
17
AN XY:
727242
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:
0.000185
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.0000247
AC:
3

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 submitterclinical testingAmbry GeneticsOct 17, 2023The c.349A>G (p.R117G) alteration is located in exon 1 (coding exon 1) of the CDK12 gene. This alteration results from a A to G substitution at nucleotide position 349, causing the arginine (R) at amino acid position 117 to be replaced by a glycine (G). 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
Uncertain
0.35
BayesDel_addAF
Benign
-0.28
T
BayesDel_noAF
Benign
-0.43
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.021
T;.;T
Eigen
Benign
-0.26
Eigen_PC
Benign
-0.35
FATHMM_MKL
Benign
0.64
D
LIST_S2
Benign
0.79
T;T;T
M_CAP
Benign
0.051
D
MetaRNN
Benign
0.16
T;T;T
MetaSVM
Benign
-0.75
T
MutationAssessor
Benign
0.69
.;N;N
MutationTaster
Benign
0.65
D;D
PrimateAI
Uncertain
0.56
T
PROVEAN
Benign
-1.8
.;N;N
REVEL
Benign
0.19
Sift
Uncertain
0.0020
.;D;D
Sift4G
Benign
0.15
T;T;T
Polyphen
0.99, 0.99
.;D;D
Vest4
0.27, 0.22
MutPred
0.17
Loss of solvent accessibility (P = 0.1434);Loss of solvent accessibility (P = 0.1434);Loss of solvent accessibility (P = 0.1434);
MVP
0.26
MPC
0.43
ClinPred
0.57
D
GERP RS
-3.1
Varity_R
0.22
gMVP
0.064

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs765207917; hg19: chr17-37618673; API