Genetic Variant EGLN1:p.Glu92Glu (chr1-231421613-C-T) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_022051.3(EGLN1):c.276G>A(p.Glu92Glu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

EGLN1
NM_022051.3 synonymous

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.502

Publications

0 publications found

Variant links:

Genes affected

EGLN1 (HGNC:1232): (egl-9 family hypoxia inducible factor 1) The protein encoded by this gene catalyzes the post-translational formation of 4-hydroxyproline in hypoxia-inducible factor (HIF) alpha proteins. HIF is a transcriptional complex that plays a central role in mammalian oxygen homeostasis. This protein functions as a cellular oxygen sensor, and under normal oxygen concentration, modification by prolyl hydroxylation is a key regulatory event that targets HIF subunits for proteasomal destruction via the von Hippel-Lindau ubiquitylation complex. Mutations in this gene are associated with erythrocytosis familial type 3 (ECYT3). [provided by RefSeq, Nov 2009]

EGLN1 Gene-Disease associations (from GenCC):

erythrocytosis, familial, 3
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, Ambry Genetics, Labcorp Genetics (formerly Invitae)
autosomal dominant secondary polycythemia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
hemoglobin, high altitude adaptation
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
hereditary pheochromocytoma-paraganglioma
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

EGLN1 links:

ENSG00000287856 (HGNC:):

ENSG00000287856 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.65).

BP6

Variant 1-231421613-C-T is Benign according to our data. Variant chr1-231421613-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 3507204.Status of the report is criteria_provided_single_submitter, 1 stars.

BP7

Synonymous conserved (PhyloP=-0.502 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EGLN1	NM_022051.3 link	c.276G>A	p.Glu92Glu	synonymous_variant	Exon 1 of 5	ENST00000366641.4	NP_071334.1	Q9GZT9-1R4SCQ0
EGLN1	NM_001377260.1 link	c.276G>A	p.Glu92Glu	synonymous_variant	Exon 1 of 4		NP_001364189.1
EGLN1	NM_001377261.1 link	c.276G>A	p.Glu92Glu	synonymous_variant	Exon 1 of 4		NP_001364190.1
EGLN1	XM_024447734.2 link	c.276G>A	p.Glu92Glu	synonymous_variant	Exon 1 of 3		XP_024303502.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
EGLN1	ENST00000366641.4 link	c.276G>A	p.Glu92Glu	synonymous_variant	Exon 1 of 5	1	NM_022051.3	ENSP00000355601.3	Q9GZT9-1
ENSG00000287856	ENST00000662216.1 link	c.30+40825G>A		intron_variant	Intron 3 of 6			ENSP00000499467.1	A0A590UJK7
ENSG00000287856	ENST00000653908.1 link	c.30+40825G>A		intron_variant	Intron 2 of 4			ENSP00000499669.1	A0A590UK27
ENSG00000287856	ENST00000653198.1 link	n.433+40859G>A		intron_variant	Intron 4 of 7

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1198206

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

584020

African (AFR)

AF:

0.00

AC:

AN:

23650

American (AMR)

AF:

0.00

AC:

AN:

9964

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

16294

East Asian (EAS)

AF:

0.00

AC:

AN:

27188

South Asian (SAS)

AF:

0.00

AC:

AN:

46866

European-Finnish (FIN)

AF:

0.00

AC:

AN:

28906

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3352

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

993054

Other (OTH)

AF:

0.00

AC:

AN:

48932

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Jun 27, 2024

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.65

CADD

Benign

5.4

(source)

DANN

Benign

0.97

PhyloP100

-0.50

PromoterAI

0.028

Neutral

(source)

Mutation Taster

=100/0

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

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over