Genetic Variant EPO:p.Ala87Ala (chr7-100722678-C-T) – ACMG Classification: Benign (-13 pts)

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6_Very_StrongBP7

The NM_000799.4(EPO):c.261C>T(p.Ala87Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000179 in 1,597,988 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00068 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00013 ( 1 hom. )

Consequence

EPO
NM_000799.4 synonymous

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -2.86

Publications

0 publications found

Variant links:

Genes affected

EPO (HGNC:3415): (erythropoietin) This gene encodes a secreted, glycosylated cytokine composed of four alpha helical bundles. The encoded protein is mainly synthesized in the kidney, secreted into the blood plasma, and binds to the erythropoietin receptor to promote red blood cell production, or erythropoiesis, in the bone marrow. Expression of this gene is upregulated under hypoxic conditions, in turn leading to increased erythropoiesis and enhanced oxygen-carrying capacity of the blood. Expression of this gene has also been observed in brain and in the eye, and elevated expression levels have been observed in diabetic retinopathy and ocular hypertension. Recombinant forms of the encoded protein exhibit neuroprotective activity against a variety of potential brain injuries, as well as antiapoptotic functions in several tissue types, and have been used in the treatment of anemia and to enhance the efficacy of cancer therapies. [provided by RefSeq, Aug 2017]

EPO Gene-Disease associations (from GenCC):

erythrocytosis, familial, 5
Inheritance: AD Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Genomics England PanelApp
autosomal dominant secondary polycythemia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Diamond-Blackfan anemia-like
Inheritance: Unknown, AR Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics

EPO links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.67).

BP6

Variant 7-100722678-C-T is Benign according to our data. Variant chr7-100722678-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 733903.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-2.86 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000799.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EPO	NM_000799.4	MANE Select	c.261C>T	p.Ala87Ala	synonymous	Exon 4 of 5	NP_000790.2	G9JKG7

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EPO	ENST00000252723.3	TSL:1 MANE Select	c.261C>T	p.Ala87Ala	synonymous	Exon 4 of 5	ENSP00000252723.2	P01588

Frequencies

GnomAD3 genomes

AF:

0.000697

AC:

106

AN:

152068

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00200

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000194

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.0127

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.000955

GnomAD2 exomes

AF:

0.000240

AC:

AN:

233748

AF XY:

0.000203

show subpopulations

Gnomad AFR exome

AF:

0.00171

Gnomad AMR exome

AF:

0.000101

Gnomad ASJ exome

AF:

0.000333

Gnomad EAS exome

AF:

0.000116

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000168

Gnomad OTH exome

AF:

0.000178

GnomAD4 exome

AF:

0.000126

AC:

182

AN:

1445802

Hom.:

Cov.:

AF XY:

0.000104

AC XY:

AN XY:

719720

show subpopulations

African (AFR)

AF:

0.00201

AC:

AN:

32262

American (AMR)

AF:

0.000152

AC:

AN:

39436

Ashkenazi Jewish (ASJ)

AF:

0.0000792

AC:

AN:

25238

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39654

South Asian (SAS)

AF:

0.0000593

AC:

AN:

84272

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53016

Middle Eastern (MID)

AF:

0.00159

AC:

AN:

4412

European-Non Finnish (NFE)

AF:

0.0000749

AC:

AN:

1107978

Other (OTH)

AF:

0.000218

AC:

AN:

59534

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.469

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000683

AC:

104

AN:

152186

Hom.:

Cov.:

AF XY:

0.000780

AC XY:

AN XY:

74390

show subpopulations

African (AFR)

AF:

0.00200

AC:

AN:

41542

American (AMR)

AF:

0.000458

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000195

AC:

AN:

5140

South Asian (SAS)

AF:

0.00

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10598

Middle Eastern (MID)

AF:

0.00680

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000132

AC:

AN:

68004

Other (OTH)

AF:

0.000945

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.506

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000709

Hom.:

Bravo

AF:

0.000805

EpiCase

AF:

0.000327

EpiControl

AF:

0.000237

ClinVar

ClinVar submissions

Significance:Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.67

CADD

Benign

0.24

(source)

DANN

Benign

0.68

PhyloP100

-2.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over