chr2-134954428-A-T
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate
The NM_058241.3(CCNT2):c.1973A>T(p.His658Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000682 in 1,614,038 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000062 ( 0 hom. )
Consequence
CCNT2
NM_058241.3 missense
NM_058241.3 missense
Scores
3
16
Clinical Significance
Conservation
PhyloP100: 4.35
Genes affected
CCNT2 (HGNC:1600): (cyclin T2) The protein encoded by this gene belongs to the highly conserved cyclin family, whose members are characterized by a dramatic periodicity in protein abundance through the cell cycle. Cyclins function as regulators of CDK kinases. Different cyclins exhibit distinct expression and degradation patterns which contribute to the temporal coordination of each mitotic event. This cyclin and its kinase partner CDK9 were found to be subunits of the transcription elongation factor p-TEFb. The p-TEFb complex containing this cyclin was reported to interact with, and act as a negative regulator of human immunodeficiency virus type 1 (HIV-1) Tat protein. A pseudogene of this gene is found on chromosome 1. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Dec 2010]
Genome browser will be placed here
ACMG classification
Classification made for transcript
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=0.07857856).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CCNT2 | NM_058241.3 | c.1973A>T | p.His658Leu | missense_variant | 9/9 | ENST00000264157.10 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CCNT2 | ENST00000264157.10 | c.1973A>T | p.His658Leu | missense_variant | 9/9 | 1 | NM_058241.3 | P4 |
Frequencies
GnomAD3 genomes ? AF: 0.0000131 AC: 2AN: 152120Hom.: 0 Cov.: 32
GnomAD3 genomes
?
AF:
AC:
2
AN:
152120
Hom.:
Cov.:
32
Gnomad AFR
AF:
Gnomad AMI
AF:
Gnomad AMR
AF:
Gnomad ASJ
AF:
Gnomad EAS
AF:
Gnomad SAS
AF:
Gnomad FIN
AF:
Gnomad MID
AF:
Gnomad NFE
AF:
Gnomad OTH
AF:
GnomAD3 exomes AF: 0.0000438 AC: 11AN: 251408Hom.: 0 AF XY: 0.0000368 AC XY: 5AN XY: 135872
GnomAD3 exomes
AF:
AC:
11
AN:
251408
Hom.:
AF XY:
AC XY:
5
AN XY:
135872
Gnomad AFR exome
AF:
Gnomad AMR exome
AF:
Gnomad ASJ exome
AF:
Gnomad EAS exome
AF:
Gnomad SAS exome
AF:
Gnomad FIN exome
AF:
Gnomad NFE exome
AF:
Gnomad OTH exome
AF:
GnomAD4 exome AF: 0.00000616 AC: 9AN: 1461800Hom.: 0 Cov.: 33 AF XY: 0.00000413 AC XY: 3AN XY: 727204
GnomAD4 exome
AF:
AC:
9
AN:
1461800
Hom.:
Cov.:
33
AF XY:
AC XY:
3
AN XY:
727204
Gnomad4 AFR exome
AF:
Gnomad4 AMR exome
AF:
Gnomad4 ASJ exome
AF:
Gnomad4 EAS exome
AF:
Gnomad4 SAS exome
AF:
Gnomad4 FIN exome
AF:
Gnomad4 NFE exome
AF:
Gnomad4 OTH exome
AF:
GnomAD4 genome ? AF: 0.0000131 AC: 2AN: 152238Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74446
GnomAD4 genome
?
AF:
AC:
2
AN:
152238
Hom.:
Cov.:
32
AF XY:
AC XY:
1
AN XY:
74446
Gnomad4 AFR
AF:
Gnomad4 AMR
AF:
Gnomad4 ASJ
AF:
Gnomad4 EAS
AF:
Gnomad4 SAS
AF:
Gnomad4 FIN
AF:
Gnomad4 NFE
AF:
Gnomad4 OTH
AF:
Bravo
AF:
ExAC
?
AF:
AC:
8
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 | Feb 27, 2023 | The c.1973A>T (p.H658L) alteration is located in exon 9 (coding exon 9) of the CCNT2 gene. This alteration results from a A to T substitution at nucleotide position 1973, causing the histidine (H) at amino acid position 658 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
Cadd
Benign
Dann
Benign
DEOGEN2
Benign
T
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Uncertain
D
LIST_S2
Benign
T
M_CAP
Benign
T
MetaRNN
Benign
T
MetaSVM
Benign
T
MutationAssessor
Benign
L
MutationTaster
Benign
D;D;D
PrimateAI
Uncertain
T
PROVEAN
Benign
N
REVEL
Benign
Sift
Uncertain
D
Sift4G
Benign
T
Polyphen
B
Vest4
MutPred
Loss of sheet (P = 0.0104);
MVP
MPC
ClinPred
T
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at