14-20693617-T-A

Position:

• chr14-20693617-T-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_001097577.3(ANG):​c.53T>A​(p.Leu18Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000109 in 1,461,794 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.000011 (0 hom.)
• Consequence: ANG NM_001097577.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.387

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]

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]

EGILA (HGNC:54482): (EGFR interacting lncRNA)

ACMG classification

Verdict is Likely_benign. Variant got -4 ACMG points.

• BS2: High AC in GnomAdExome4 at 16 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ANG	NM_001097577.3	c.53T>A	p.Leu18Gln	missense_variant	2/2	ENST00000397990.5
RNASE4	NM_002937.5	c.-17-5738T>A		intron_variant		ENST00000555835.3
EGILA	NR_174964.1	n.599A>T		non_coding_transcript_exon_variant	4/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ANG	ENST00000397990.5	c.53T>A	p.Leu18Gln	missense_variant	2/2	1	NM_001097577.3	P1
RNASE4	ENST00000555835.3	c.-17-5738T>A		intron_variant		1	NM_002937.5	P1
EGILA	ENST00000554286.1	n.778A>T		non_coding_transcript_exon_variant	4/4	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.0000159 AC: 4 AN: 251412 Hom.: 0 AF XY: 0.0000221 AC XY: 3 AN XY: 135894

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.000131

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000109 AC: 16 AN: 1461794 Hom.: 0 Cov.: 31 AF XY: 0.0000165 AC XY: 12 AN XY: 727202

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000151

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000180

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ExAC AF: 0.0000165 AC: 2

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

Oct 01, 2017

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Benign	-0.066	T
BayesDel_noAF	Benign	-0.10
CADD	Benign	21
DANN	Benign	0.96
DEOGEN2	Benign	0.21	T;T;.
Eigen	Uncertain	0.25
Eigen_PC	Benign	0.14
FATHMM_MKL	Benign	0.63	D
LIST_S2	Benign	0.73	.;T;T
M_CAP	Uncertain	0.14	D
MetaRNN	Uncertain	0.72	D;D;D
MetaSVM	Uncertain	0.27	D
MutationAssessor	Uncertain	2.6	M;M;.
MutationTaster	Benign	0.94	D;D;D;N;N
PrimateAI	Benign	0.36	T
PROVEAN	Uncertain	-2.7	D;D;.
REVEL	Uncertain	0.61
Sift	Uncertain	0.024	D;D;.
Sift4G	Benign	0.12	T;T;D
Polyphen		0.98	D;D;.
Vest4		0.51
MutPred		0.62		Gain of catalytic residue at P20 (P = 0.0016);Gain of catalytic residue at P20 (P = 0.0016);Gain of catalytic residue at P20 (P = 0.0016);
MVP		0.97
MPC		0.18
ClinPred		0.79	D
GERP RS		3.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.24
gMVP		0.83

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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

Other links and lift over

dbSNP: rs768342067; hg19: chr14-21161776;