4-121816718-A-G

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001237.5(CCNA2):​c.*920T>C variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.02 in 1,496,656 control chromosomes in the GnomAD database, including 2,234 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.065 ( 875 hom., cov: 32)
Exomes 𝑓: 0.015 ( 1359 hom. )

Consequence

CCNA2
NM_001237.5 3_prime_UTR

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.997
Variant links:
Genes affected
CCNA2 (HGNC:1578): (cyclin A2) The protein encoded by this gene belongs to the highly conserved cyclin family, whose members function as regulators of the cell cycle. This protein binds and activates cyclin-dependent kinase 2 and thus promotes transition through G1/S and G2/M. [provided by RefSeq, Aug 2016]
EXOSC9 (HGNC:9137): (exosome component 9) This gene encodes a component of the human exosome, a exoribonuclease complex which processes and degrades RNA in the nucleus and cytoplasm. This component may play a role in mRNA degradation and the polymyositis/scleroderma autoantigen complex. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2011]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.87).
BP6
Variant 4-121816718-A-G is Benign according to our data. Variant chr4-121816718-A-G is described in ClinVar as [Benign]. Clinvar id is 1229339.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.185 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CCNA2NM_001237.5 linkuse as main transcriptc.*920T>C 3_prime_UTR_variant 8/8 ENST00000274026.10 NP_001228.2 P20248
EXOSC9NM_005033.3 linkuse as main transcriptc.1236-54A>G intron_variant ENST00000243498.10 NP_005024.2 Q06265-1
EXOSC9NM_001034194.2 linkuse as main transcriptc.1287-54A>G intron_variant NP_001029366.1 Q06265-2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CCNA2ENST00000274026 linkuse as main transcriptc.*920T>C 3_prime_UTR_variant 8/81 NM_001237.5 ENSP00000274026.5 P20248
EXOSC9ENST00000243498.10 linkuse as main transcriptc.1236-54A>G intron_variant 1 NM_005033.3 ENSP00000243498.5 Q06265-1

Frequencies

GnomAD3 genomes
AF:
0.0654
AC:
9952
AN:
152140
Hom.:
874
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.189
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0245
Gnomad ASJ
AF:
0.00144
Gnomad EAS
AF:
0.195
Gnomad SAS
AF:
0.0828
Gnomad FIN
AF:
0.00565
Gnomad MID
AF:
0.0253
Gnomad NFE
AF:
0.00278
Gnomad OTH
AF:
0.0440
GnomAD4 exome
AF:
0.0149
AC:
20010
AN:
1344398
Hom.:
1359
Cov.:
28
AF XY:
0.0156
AC XY:
10363
AN XY:
664166
show subpopulations
Gnomad4 AFR exome
AF:
0.194
Gnomad4 AMR exome
AF:
0.0139
Gnomad4 ASJ exome
AF:
0.000403
Gnomad4 EAS exome
AF:
0.154
Gnomad4 SAS exome
AF:
0.0671
Gnomad4 FIN exome
AF:
0.00579
Gnomad4 NFE exome
AF:
0.00192
Gnomad4 OTH exome
AF:
0.0307
GnomAD4 genome
AF:
0.0655
AC:
9972
AN:
152258
Hom.:
875
Cov.:
32
AF XY:
0.0671
AC XY:
4994
AN XY:
74460
show subpopulations
Gnomad4 AFR
AF:
0.189
Gnomad4 AMR
AF:
0.0245
Gnomad4 ASJ
AF:
0.00144
Gnomad4 EAS
AF:
0.194
Gnomad4 SAS
AF:
0.0831
Gnomad4 FIN
AF:
0.00565
Gnomad4 NFE
AF:
0.00278
Gnomad4 OTH
AF:
0.0445
Alfa
AF:
0.0477
Hom.:
62
Bravo
AF:
0.0723
Asia WGS
AF:
0.147
AC:
509
AN:
3474

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxMay 14, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.87
CADD
Benign
1.0
DANN
Benign
0.68
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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: rs1507987; hg19: chr4-122737873; COSMIC: COSV54666252; COSMIC: COSV54666252; API