chr17-39462342-C-T

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_016507.4(CDK12):​c.271C>T​(p.Leu91=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00175 in 1,614,214 control chromosomes in the GnomAD database, including 62 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0010 ( 1 hom., cov: 32)
Exomes 𝑓: 0.0018 ( 61 hom. )

Consequence

CDK12
NM_016507.4 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.0680
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 Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BP6
Variant 17-39462342-C-T is Benign according to our data. Variant chr17-39462342-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 1678978.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.068 with no splicing effect.
BS1
Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.00104 (158/152322) while in subpopulation SAS AF= 0.0302 (146/4830). AF 95% confidence interval is 0.0262. There are 1 homozygotes in gnomad4. There are 120 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 158 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CDK12NM_016507.4 linkuse as main transcriptc.271C>T p.Leu91= synonymous_variant 1/14 ENST00000447079.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CDK12ENST00000447079.6 linkuse as main transcriptc.271C>T p.Leu91= synonymous_variant 1/141 NM_016507.4 P4Q9NYV4-1
CDK12ENST00000430627.6 linkuse as main transcriptc.271C>T p.Leu91= synonymous_variant 1/141 A1Q9NYV4-2
CDK12ENST00000584632.5 linkuse as main transcriptc.271C>T p.Leu91= synonymous_variant 1/135
CDK12ENST00000559663.2 linkuse as main transcriptc.271C>T p.Leu91= synonymous_variant, NMD_transcript_variant 1/215

Frequencies

GnomAD3 genomes
AF:
0.00105
AC:
160
AN:
152204
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.0306
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.00376
AC:
946
AN:
251444
Hom.:
20
AF XY:
0.00519
AC XY:
706
AN XY:
135912
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0300
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000132
Gnomad OTH exome
AF:
0.00163
GnomAD4 exome
AF:
0.00182
AC:
2659
AN:
1461892
Hom.:
61
Cov.:
32
AF XY:
0.00267
AC XY:
1944
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.000119
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0285
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000755
Gnomad4 OTH exome
AF:
0.00177
GnomAD4 genome
AF:
0.00104
AC:
158
AN:
152322
Hom.:
1
Cov.:
32
AF XY:
0.00161
AC XY:
120
AN XY:
74482
show subpopulations
Gnomad4 AFR
AF:
0.000168
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.0302
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000474
Alfa
AF:
0.000302
Hom.:
0
Bravo
AF:
0.000223
Asia WGS
AF:
0.0140
AC:
47
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.0000593

ClinVar

Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

CDK12-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesApr 05, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
not provided Benign:1
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Hereditary breast ovarian cancer syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingNational Health Laboratory Service, Universitas Academic Hospital and University of the Free StateApr 19, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
CADD
Benign
5.8
DANN
Benign
0.93

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: rs149034064; hg19: chr17-37618595; API