dbSNP rs147839743: EGLN1:p.Ser420Leu (chr1-231366433-G-A) – ACMG Classification: Benign (-13 pts)

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_022051.3(EGLN1):c.1259C>T(p.Ser420Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000262 in 1,613,556 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 Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. S420S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00045 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00024 ( 1 hom. )

Consequence

EGLN1
NM_022051.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 5.59

Publications

2 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: Ambry Genetics, Genomics England PanelApp, 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:

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 (MetaRNN=0.006778419).

BP6

Variant 1-231366433-G-A is Benign according to our data. Variant chr1-231366433-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 465822.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000448 (68/151748) while in subpopulation AFR AF = 0.000121 (5/41304). AF 95% confidence interval is 0.0000475. There are 0 homozygotes in GnomAd4. There are 48 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 68 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_022051.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
EGLN1	NM_022051.3	MANE Select	c.1259C>T	p.Ser420Leu	missense	Exon 5 of 5	NP_071334.1	R4SCQ0
EGLN1	NM_001377260.1		c.*39C>T		3_prime_UTR	Exon 4 of 4	NP_001364189.1
EGLN1	NM_001377261.1		c.*84C>T		3_prime_UTR	Exon 4 of 4	NP_001364190.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
EGLN1	ENST00000366641.4	TSL:1 MANE Select	c.1259C>T	p.Ser420Leu	missense	Exon 5 of 5	ENSP00000355601.3	Q9GZT9-1
ENSG00000287856	ENST00000662216.1		c.398C>T	p.Ser133Leu	missense	Exon 7 of 7	ENSP00000499467.1	A0A590UJK7
EGLN1	ENST00000476717.2	TSL:1	n.536C>T		non_coding_transcript_exon	Exon 5 of 5

Frequencies

GnomAD3 genomes

AF:

0.000448

AC:

AN:

151748

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00574

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.000480

GnomAD2 exomes

AF:

0.000660

AC:

166

AN:

251424

AF XY:

0.000648

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad FIN exome

AF:

0.00707

Gnomad NFE exome

AF:

0.0000616

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000242

AC:

354

AN:

1461808

Hom.:

Cov.:

AF XY:

0.000227

AC XY:

165

AN XY:

727208

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33480

American (AMR)

AF:

0.0000224

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26128

East Asian (EAS)

AF:

0.000252

AC:

AN:

39686

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00590

AC:

315

AN:

53412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5752

European-Non Finnish (NFE)

AF:

0.0000153

AC:

AN:

1111978

Other (OTH)

AF:

0.000166

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.464

Heterozygous variant carriers

103

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.000448

AC:

AN:

151748

Hom.:

Cov.:

AF XY:

0.000648

AC XY:

AN XY:

74064

show subpopulations

African (AFR)

AF:

0.000121

AC:

AN:

41304

American (AMR)

AF:

0.00

AC:

AN:

15226

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00574

AC:

AN:

10452

Middle Eastern (MID)

AF:

0.00

AC:

AN:

312

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

67990

Other (OTH)

AF:

0.000480

AC:

AN:

2084

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.516

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:

0.0000536

Hom.:

Bravo

AF:

0.0000529

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000346

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Erythrocytosis, familial, 3 (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.064

BayesDel_noAF

Benign

-0.090

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.33

Eigen

Uncertain

0.45

Eigen_PC

Uncertain

0.51

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.84

M_CAP

Benign

0.029

MetaRNN

Benign

0.0068

MetaSVM

Uncertain

0.12

MutationAssessor

Benign

1.0

PhyloP100

5.6

PrimateAI

Benign

0.42

PROVEAN

Benign

-1.6

REVEL

Uncertain

0.41

Sift

Uncertain

0.0070

Sift4G

Uncertain

0.036

Polyphen

0.98

Vest4

0.32

MVP

0.47

MPC

1.1

ClinPred

0.030

GERP RS

5.8

Varity_R

0.094

gMVP

0.35

Mutation Taster

=80/20

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over