3-186666198-C-T

Position:

chr3-186666198-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_000412.5(HRG):c.167C>T(p.Ala56Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00139 in 1,613,882 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00080 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0015 ( 3 hom. )

Consequence

HRG
NM_000412.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.43

Variant links:

Genes affected

HRG (HGNC:5181): (histidine rich glycoprotein) This histidine-rich glycoprotein contains two cystatin-like domains and is located in plasma and platelets. The physiological function has not been determined but it is known that the protein binds heme, dyes and divalent metal ions. The encoded protein also has a peptide that displays antimicrobial activity against C. albicans, E. coli, S. aureus, P. aeruginosa, and E. faecalis. It can inhibit rosette formation and interacts with heparin, thrombospondin and plasminogen. Two of the protein's effects, the inhibition of fibrinolysis and the reduction of inhibition of coagulation, indicate a potential prothrombotic effect. Mutations in this gene lead to thrombophilia due to abnormal histidine-rich glycoprotein levels. [provided by RefSeq, Nov 2014]

HRG links:

HRG-AS1 (HGNC:55915): (HRG and FETUB antisense RNA 1)

HRG-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.13311818).

BS2

High AC in GnomAd4 at 122 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
HRG	NM_000412.5 linkuse as main transcript	c.167C>T	p.Ala56Val	missense_variant	1/7	ENST00000232003.5
HRG-AS1	XR_924801.3 linkuse as main transcript	n.291-14327G>A		intron_variant, non_coding_transcript_variant
HRG	XM_005247415.5 linkuse as main transcript	c.167C>T	p.Ala56Val	missense_variant	1/7
HRG-AS1	XR_001741059.2 linkuse as main transcript	n.291-14327G>A		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HRG	ENST00000232003.5 linkuse as main transcript	c.167C>T	p.Ala56Val	missense_variant	1/7	1	NM_000412.5	P1
HRG-AS1	ENST00000630178.2 linkuse as main transcript	n.238+52269G>A		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes

AF:

0.000802

AC:

122

AN:

152178

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000265

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000943

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00140

Gnomad OTH

AF:

0.00239

GnomAD3 exomes

AF:

0.000729

AC:

183

AN:

251156

Hom.:

AF XY:

0.000634

AC XY:

AN XY:

135742

show subpopulations

Gnomad AFR exome

AF:

0.000431

Gnomad AMR exome

AF:

0.000781

Gnomad ASJ exome

AF:

0.0000993

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000463

Gnomad NFE exome

AF:

0.00124

Gnomad OTH exome

AF:

0.000978

GnomAD4 exome

AF:

0.00145

AC:

2126

AN:

1461586

Hom.:

Cov.:

AF XY:

0.00138

AC XY:

1004

AN XY:

727106

show subpopulations

Gnomad4 AFR exome

AF:

0.000478

Gnomad4 AMR exome

AF:

0.000850

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.00181

Gnomad4 OTH exome

AF:

0.00101

GnomAD4 genome

AF:

0.000801

AC:

122

AN:

152296

Hom.:

Cov.:

AF XY:

0.000658

AC XY:

AN XY:

74466

show subpopulations

Gnomad4 AFR

AF:

0.000265

Gnomad4 AMR

AF:

0.000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000943

Gnomad4 NFE

AF:

0.00140

Gnomad4 OTH

AF:

0.00237

Alfa

AF:

0.00147

Hom.:

Bravo

AF:

0.00109

TwinsUK

AF:

0.00189

AC:

ALSPAC

AF:

0.00311

AC:

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00151

AC:

ExAC

AF:

0.000568

AC:

EpiCase

AF:

0.00142

EpiControl

AF:

0.00124

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Feb 28, 2024

Variant summary: HRG c.167C>T (p.Ala56Val) results in a non-conservative amino acid change located in the Cystatin domain (IPR000010) of the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 0.00073 in 251156 control chromosomes. c.167C>T has been reported in the literature in individual(s) affected with pulmonary arterial hypertension, without strong evidence for causality (Song_2016). These report(s) do not provide unequivocal conclusions about association of the variant with Hereditary Thrombophilia Due To Congenital Histidine-Rich (poly-L) Glycoprotein Deficiency. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publication have been ascertained in the context of this evaluation (PMID: 27613157). No submitters have cited clinical-significance assessments for this variant to ClinVar. Based on the evidence outlined above, the variant was classified as uncertain significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.29

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.26

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.081

Eigen

Uncertain

0.22

Eigen_PC

Uncertain

0.25

FATHMM_MKL

Uncertain

0.89

LIST_S2

Benign

0.70

M_CAP

Benign

0.015

MetaRNN

Benign

0.13

MetaSVM

Benign

-0.99

MutationAssessor

Benign

1.7

MutationTaster

Benign

0.61

PrimateAI

Benign

0.35

PROVEAN

Uncertain

-2.9

REVEL

Benign

0.18

Sift

Benign

0.26

Sift4G

Pathogenic

0.0

Polyphen

0.94

Vest4

0.76

MVP

0.58

MPC

0.34

ClinPred

0.079

GERP RS

4.3

Varity_R

0.16

gMVP

0.46

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