chr2-73901306-C-T

Variant summary

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

The NM_001615.4(ACTG2):​c.-6C>T variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.775 in 1,591,700 control chromosomes in the GnomAD database, including 480,554 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.76 ( 44493 hom., cov: 34)
Exomes 𝑓: 0.78 ( 436061 hom. )

Consequence

ACTG2
NM_001615.4 5_prime_UTR

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.134
Variant links:
Genes affected
ACTG2 (HGNC:145): (actin gamma 2, smooth muscle) Actins are highly conserved proteins that are involved in various types of cell motility and in the maintenance of the cytoskeleton. Three types of actins, alpha, beta and gamma, have been identified in vertebrates. Alpha actins are found in muscle tissues and are a major constituent of the contractile apparatus. The beta and gamma actins co-exist in most cell types as components of the cytoskeleton and as mediators of internal cell motility. This gene encodes actin gamma 2; a smooth muscle actin found in enteric tissues. Alternative splicing results in multiple transcript variants encoding distinct isoforms. Based on similarity to peptide cleavage of related actins, the mature protein of this gene is formed by removal of two N-terminal peptides.[provided by RefSeq, Dec 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.7).
BP6
Variant 2-73901306-C-T is Benign according to our data. Variant chr2-73901306-C-T is described in ClinVar as [Benign]. Clinvar id is 1188856.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-73901306-C-T is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.814 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ACTG2NM_001615.4 linkuse as main transcriptc.-6C>T 5_prime_UTR_variant 2/9 ENST00000345517.8
ACTG2NM_001199893.2 linkuse as main transcriptc.-6C>T 5_prime_UTR_variant 2/8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ACTG2ENST00000345517.8 linkuse as main transcriptc.-6C>T 5_prime_UTR_variant 2/91 NM_001615.4 P1P63267-1

Frequencies

GnomAD3 genomes
AF:
0.761
AC:
115773
AN:
152112
Hom.:
44450
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.697
Gnomad AMI
AF:
0.749
Gnomad AMR
AF:
0.826
Gnomad ASJ
AF:
0.761
Gnomad EAS
AF:
0.566
Gnomad SAS
AF:
0.696
Gnomad FIN
AF:
0.852
Gnomad MID
AF:
0.769
Gnomad NFE
AF:
0.790
Gnomad OTH
AF:
0.774
GnomAD3 exomes
AF:
0.775
AC:
185184
AN:
239072
Hom.:
72720
AF XY:
0.770
AC XY:
99544
AN XY:
129244
show subpopulations
Gnomad AFR exome
AF:
0.698
Gnomad AMR exome
AF:
0.889
Gnomad ASJ exome
AF:
0.776
Gnomad EAS exome
AF:
0.565
Gnomad SAS exome
AF:
0.703
Gnomad FIN exome
AF:
0.851
Gnomad NFE exome
AF:
0.789
Gnomad OTH exome
AF:
0.785
GnomAD4 exome
AF:
0.776
AC:
1117109
AN:
1439470
Hom.:
436061
Cov.:
49
AF XY:
0.774
AC XY:
552499
AN XY:
713438
show subpopulations
Gnomad4 AFR exome
AF:
0.702
Gnomad4 AMR exome
AF:
0.882
Gnomad4 ASJ exome
AF:
0.771
Gnomad4 EAS exome
AF:
0.515
Gnomad4 SAS exome
AF:
0.699
Gnomad4 FIN exome
AF:
0.844
Gnomad4 NFE exome
AF:
0.787
Gnomad4 OTH exome
AF:
0.768
GnomAD4 genome
AF:
0.761
AC:
115875
AN:
152230
Hom.:
44493
Cov.:
34
AF XY:
0.762
AC XY:
56722
AN XY:
74434
show subpopulations
Gnomad4 AFR
AF:
0.698
Gnomad4 AMR
AF:
0.826
Gnomad4 ASJ
AF:
0.761
Gnomad4 EAS
AF:
0.566
Gnomad4 SAS
AF:
0.696
Gnomad4 FIN
AF:
0.852
Gnomad4 NFE
AF:
0.791
Gnomad4 OTH
AF:
0.775
Alfa
AF:
0.779
Hom.:
32369
Bravo
AF:
0.759
Asia WGS
AF:
0.673
AC:
2343
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxNov 23, 2018- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Megacystis-microcolon-intestinal hypoperistalsis syndrome 5 Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 14, 2021- -
Visceral myopathy 1 Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabJul 14, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.70
CADD
Benign
9.3
DANN
Benign
0.87

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: rs1050146; hg19: chr2-74128433; API