Genetic Variant HPX:p.Thr248Ser (chr11-6437138-G-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_000613.3(HPX):c.743C>G(p.Thr248Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000164 in 1,613,892 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00017 ( 1 hom. )

Consequence

HPX
NM_000613.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.51

Variant links:

Genes affected

HPX (HGNC:5171): (hemopexin) This gene encodes a plasma glycoprotein that binds heme with high affinity. The encoded protein is an acute phase protein that transports heme from the plasma to the liver and may be involved in protecting cells from oxidative stress. [provided by RefSeq, Apr 2009]

HPX links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.04758981).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HPX	NM_000613.3 link	c.743C>G	p.Thr248Ser	missense_variant	Exon 7 of 10	ENST00000265983.8	NP_000604.1	P02790Q9BS19

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HPX	ENST00000265983.8 link	c.743C>G	p.Thr248Ser	missense_variant	Exon 7 of 10	1	NM_000613.3	ENSP00000265983.3		P02790

Frequencies

GnomAD3 genomes

AF:

0.000151

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00103

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000162

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000215

AC:

AN:

251082

Hom.:

AF XY:

0.000214

AC XY:

AN XY:

135688

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000786

Gnomad NFE exome

AF:

0.000300

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000166

AC:

242

AN:

1461708

Hom.:

Cov.:

AF XY:

0.000158

AC XY:

115

AN XY:

727182

show subpopulations

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:

0.00

Gnomad4 FIN exome

AF:

0.00105

Gnomad4 NFE exome

AF:

0.000160

Gnomad4 OTH exome

AF:

0.000132

GnomAD4 genome

AF:

0.000151

AC:

AN:

152184

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74336

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00103

Gnomad4 NFE

AF:

0.000162

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000993

Hom.:

Bravo

AF:

0.0000793

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000280

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 11, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.743C>G (p.T248S) alteration is located in exon 7 (coding exon 7) of the HPX gene. This alteration results from a C to G substitution at nucleotide position 743, causing the threonine (T) at amino acid position 248 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.55

CADD

Benign

DANN

Benign

0.94

DEOGEN2

Benign

0.14

Eigen

Benign

-0.36

Eigen_PC

Benign

-0.27

FATHMM_MKL

Benign

0.76

LIST_S2

Benign

0.39

M_CAP

Benign

0.0067

MetaRNN

Benign

0.048

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.0

PrimateAI

Benign

0.34

PROVEAN

Benign

0.070

REVEL

Benign

0.085

Sift

Benign

0.27

Sift4G

Benign

0.78

Polyphen

0.69

Vest4

0.22

MutPred

0.17

Gain of relative solvent accessibility (P = 0.0166);

MVP

0.27

MPC

0.20

ClinPred

0.051

GERP RS

4.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.079

gMVP

0.44

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over