Genetic Variant ANG:c.-237A>C (chr14-20684540-A-C) – ACMG Classification: Benign (-20 pts)

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001145.4(ANG):c.-237A>C variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0253 in 152,380 control chromosomes in the GnomAD database, including 66 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.025 ( 66 hom., cov: 32)

Exomes 𝑓: 0.0081 ( 0 hom. )

Consequence

ANG
NM_001145.4 5_prime_UTR

Scores

Clinical Significance

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

Conservation

PhyloP100: -1.97

Publications

3 publications found

Variant links:

Genes affected

ANG (HGNC:483): (angiogenin) The protein encoded by this gene is a member of the RNase A superfamily though it has relatively weak ribonucleolytic activity. This protein is a potent mediator of new blood vessel formation and thus, in addition to the name RNase5, is commonly called angiogenin. This protein induces angiogenesis after binding to actin on the surface of endothelial cells. This protein also accumulates at the nucleolus where it stimulates ribosomal transcription. Under stress conditions this protein translocates to the cytosol where it hydrolyzes cellular tRNAs and influences protein synthesis. A signal peptide is cleaved from the precursor protein to produce a mature protein which contains a nuclear localization signal, a cell binding motif, and a catalytic domain. This protein has been shown to be both neurotrophic and neuroprotective and the mature protein has antimicrobial activity against some bacteria and fungi, including S. pneumoniae and C. albicans. Due to its effect on rRNA production and angiogenesis this gene plays important roles in cell growth and tumor progression. Mutations in this gene are associated with progression of amyotrophic lateral sclerosis (ALS). This gene and the neighboring RNase4 gene share promoters and 5' exons though each gene then splices to a distinct 3' exon containing the complete coding region of each gene. Alternative splicing results in multiple transcript variants encoding the same protein. [provided by RefSeq, Jul 2020]

ANG links:

RNASE4 (HGNC:10047): (ribonuclease A family member 4) The protein encoded by this gene belongs to the pancreatic ribonuclease family. It plays an important role in mRNA cleavage and has marked specificity towards the 3' side of uridine nucleotides. Alternative splicing results in four transcript variants encoding the same protein. This gene and the gene that encodes angiogenin share promoters and 5' exons. Each gene splices to a unique downstream exon that contains its complete coding region. [provided by RefSeq, Aug 2013]

RNASE4 links:

ENSG00000259171 (HGNC:):

ENSG00000259171 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.81).

BP6

Variant 14-20684540-A-C is Benign according to our data. Variant chr14-20684540-A-C is described in ClinVar as Benign. ClinVar VariationId is 312769.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.0253 (3859/152256) while in subpopulation SAS AF = 0.0421 (203/4822). AF 95% confidence interval is 0.0374. There are 66 homozygotes in GnomAd4. There are 2036 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 3859 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001145.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
ANG	NM_001145.4		c.-237A>C	5_prime_UTR	Exon 1 of 2	NP_001136.1	P03950
RNASE4	NM_002937.5	MANE Select	c.-236A>C	upstream_gene	N/A	NP_002928.1	P34096
RNASE4	NM_001282192.2		c.-340A>C	upstream_gene	N/A	NP_001269121.1	P34096

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
ANG	ENST00000336811.10	TSL:1	c.-237A>C	5_prime_UTR	Exon 1 of 2	ENSP00000336762.6	P03950
RNASE4	ENST00000885370.1		c.-396A>C	5_prime_UTR	Exon 1 of 3	ENSP00000555429.1
RNASE4	ENST00000885371.1		c.-333A>C	5_prime_UTR	Exon 1 of 3	ENSP00000555430.1

Frequencies

GnomAD3 genomes

AF:

0.0254

AC:

3860

AN:

152138

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00608

Gnomad AMI

AF:

0.0121

Gnomad AMR

AF:

0.0207

Gnomad ASJ

AF:

0.0150

Gnomad EAS

AF:

0.00154

Gnomad SAS

AF:

0.0425

Gnomad FIN

AF:

0.0676

Gnomad MID

AF:

0.0348

Gnomad NFE

AF:

0.0328

Gnomad OTH

AF:

0.0287

GnomAD4 exome

AF:

0.00806

AC:

AN:

124

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

American (AMR)

AC:

AN:

Ashkenazi Jewish (ASJ)

AC:

AN:

East Asian (EAS)

AF:

0.00

AC:

AN:

South Asian (SAS)

AF:

0.00

AC:

AN:

European-Finnish (FIN)

AF:

0.00

AC:

AN:

Middle Eastern (MID)

AF:

0.00

AC:

AN:

European-Non Finnish (NFE)

AF:

0.00943

AC:

AN:

106

Other (OTH)

AF:

0.00

AC:

AN:

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0253

AC:

3859

AN:

152256

Hom.:

Cov.:

AF XY:

0.0273

AC XY:

2036

AN XY:

74444

show subpopulations

African (AFR)

AF:

0.00609

AC:

253

AN:

41556

American (AMR)

AF:

0.0207

AC:

316

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.0150

AC:

AN:

3468

East Asian (EAS)

AF:

0.00154

AC:

AN:

5186

South Asian (SAS)

AF:

0.0421

AC:

203

AN:

4822

European-Finnish (FIN)

AF:

0.0676

AC:

717

AN:

10608

Middle Eastern (MID)

AF:

0.0374

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0328

AC:

2228

AN:

67996

Other (OTH)

AF:

0.0284

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.505

Heterozygous variant carriers

202

404

607

809

1011

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

150

200

250

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0125

Hom.:

Bravo

AF:

0.0199

Asia WGS

AF:

0.0230

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Amyotrophic lateral sclerosis type 9 (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.81

CADD

Benign

0.033

(source)

DANN

Benign

0.50

PhyloP100

-2.0

PromoterAI

0.066

Neutral

(source)

Mutation Taster

=295/5

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over