1-1387373-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_030937.6(CCNL2):​c.1421G>A​(p.Arg474Gln) variant causes a missense change. The variant allele was found at a frequency of 0.000075 in 1,614,204 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R474W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00042 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000039 ( 0 hom. )

Consequence

CCNL2
NM_030937.6 missense

Scores

8
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.40
Variant links:
Genes affected
CCNL2 (HGNC:20570): (cyclin L2) The protein encoded by this gene belongs to the cyclin family. Through its interaction with several proteins, such as RNA polymerase II, splicing factors, and cyclin-dependent kinases, this protein functions as a regulator of the pre-mRNA splicing process, as well as in inducing apoptosis by modulating the expression of apoptotic and antiapoptotic proteins. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Aug 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.022524476).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CCNL2NM_030937.6 linkc.1421G>A p.Arg474Gln missense_variant Exon 11 of 11 ENST00000400809.8 NP_112199.2 Q96S94-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CCNL2ENST00000400809.8 linkc.1421G>A p.Arg474Gln missense_variant Exon 11 of 11 1 NM_030937.6 ENSP00000383611.3 Q96S94-1

Frequencies

GnomAD3 genomes
AF:
0.000420
AC:
64
AN:
152258
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00133
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000392
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000956
GnomAD3 exomes
AF:
0.000135
AC:
34
AN:
251444
Hom.:
0
AF XY:
0.000125
AC XY:
17
AN XY:
135904
show subpopulations
Gnomad AFR exome
AF:
0.00142
Gnomad AMR exome
AF:
0.000145
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000390
AC:
57
AN:
1461828
Hom.:
0
Cov.:
31
AF XY:
0.0000440
AC XY:
32
AN XY:
727216
show subpopulations
Gnomad4 AFR exome
AF:
0.00116
Gnomad4 AMR exome
AF:
0.000112
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000812
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000360
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.000420
AC:
64
AN:
152376
Hom.:
0
Cov.:
33
AF XY:
0.000429
AC XY:
32
AN XY:
74520
show subpopulations
Gnomad4 AFR
AF:
0.00132
Gnomad4 AMR
AF:
0.000392
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000946
Alfa
AF:
0.000132
Hom.:
0
Bravo
AF:
0.000419
ESP6500AA
AF:
0.000908
AC:
4
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000148
AC:
18
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Oct 06, 2021
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The c.1421G>A (p.R474Q) alteration is located in exon 11 (coding exon 11) of the CCNL2 gene. This alteration results from a G to A substitution at nucleotide position 1421, causing the arginine (R) at amino acid position 474 to be replaced by a glutamine (Q). 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
0.11
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.33
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.014
T;T
Eigen
Uncertain
0.37
Eigen_PC
Uncertain
0.31
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Uncertain
0.90
D;D
M_CAP
Benign
0.059
D
MetaRNN
Benign
0.023
T;T
MetaSVM
Benign
-0.66
T
MutationAssessor
Uncertain
2.7
M;.
PrimateAI
Benign
0.47
T
PROVEAN
Benign
-1.6
N;N
REVEL
Benign
0.13
Sift
Uncertain
0.0080
D;D
Sift4G
Uncertain
0.018
D;D
Polyphen
1.0
D;.
Vest4
0.26
MVP
0.48
MPC
1.3
ClinPred
0.090
T
GERP RS
4.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.15
gMVP
0.42

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: rs144406967; hg19: chr1-1322753; API