16-72056174-G-C

Position:

chr16-72056174-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_005143.5(HP):c.19G>C(p.Val7Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000239 in 1,613,858 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00021 ( 0 hom., cov: 29)

Exomes 𝑓: 0.00024 ( 1 hom. )

Consequence

HP
NM_005143.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.40

Variant links:

Genes affected

HP (HGNC:5141): (haptoglobin) This gene encodes a preproprotein, which is processed to yield both alpha and beta chains, which subsequently combine as a tetramer to produce haptoglobin. Haptoglobin functions to bind free plasma hemoglobin, which allows degradative enzymes to gain access to the hemoglobin, while at the same time preventing loss of iron through the kidneys and protecting the kidneys from damage by hemoglobin. Mutations in this gene and/or its regulatory regions cause ahaptoglobinemia or hypohaptoglobinemia. This gene has also been linked to diabetic nephropathy, the incidence of coronary artery disease in type 1 diabetes, Crohn's disease, inflammatory disease behavior, primary sclerosing cholangitis, susceptibility to idiopathic Parkinson's disease, and a reduced incidence of Plasmodium falciparum malaria. The protein encoded also exhibits antimicrobial activity against bacteria. A similar duplicated gene is located next to this gene on chromosome 16. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2014]

HP links:

TXNL4B (HGNC:):

TXNL4B links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.14173129).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
HP	NM_005143.5 linkuse as main transcript	c.19G>C	p.Val7Leu	missense_variant	2/7	ENST00000355906.10	NP_005134.1	P00738-1Q6PEJ8
HP	NM_001126102.3 linkuse as main transcript	c.19G>C	p.Val7Leu	missense_variant	2/5		NP_001119574.1	P00738-2Q6PEJ8
HP	NM_001318138.2 linkuse as main transcript	c.19G>C	p.Val7Leu	missense_variant	2/5		NP_001305067.1	P00738Q6PEJ8A0A0C4DGL8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
HP	ENST00000355906.10 linkuse as main transcript	c.19G>C	p.Val7Leu	missense_variant	2/7	1	NM_005143.5	ENSP00000348170.5		P00738-1
TXNL4B	ENST00000562153.5 linkuse as main transcript	c.285-11817C>G		intron_variant		4		ENSP00000454635.2		H3BN11

Frequencies

GnomAD3 genomes

AF:

0.000210

AC:

AN:

152074

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000197

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000397

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000236

AC:

AN:

249510

Hom.:

AF XY:

0.000244

AC XY:

AN XY:

135362

show subpopulations

Gnomad AFR exome

AF:

0.000129

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000928

Gnomad NFE exome

AF:

0.000486

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000241

AC:

353

AN:

1461784

Hom.:

Cov.:

AF XY:

0.000239

AC XY:

174

AN XY:

727190

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

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:

0.0000749

Gnomad4 NFE exome

AF:

0.000303

Gnomad4 OTH exome

AF:

0.000166

GnomAD4 genome

AF:

0.000210

AC:

AN:

152074

Hom.:

Cov.:

AF XY:

0.000229

AC XY:

AN XY:

74274

show subpopulations

Gnomad4 AFR

AF:

0.0000483

Gnomad4 AMR

AF:

0.000197

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000397

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000354

Hom.:

Bravo

AF:

0.000196

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000471

AC:

ExAC

AF:

0.000297

AC:

EpiCase

AF:

0.000273

EpiControl

AF:

0.000296

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

Ambry Genetics

Mar 14, 2023

The c.19G>C (p.V7L) alteration is located in exon 2 (coding exon 2) of the HP gene. This alteration results from a G to C substitution at nucleotide position 19, causing the valine (V) at amino acid position 7 to be replaced by a leucine (L). 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

0.16

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.16

CADD

Benign

DANN

Benign

0.92

DEOGEN2

Benign

0.39

.;T;.;T;.;.;.;.;T

Eigen

Benign

-0.40

Eigen_PC

Benign

-0.43

FATHMM_MKL

Benign

0.049

LIST_S2

Benign

0.76

.;T;T;T;T;T;T;T;T

M_CAP

Benign

0.030

MetaRNN

Benign

0.14

T;T;T;T;T;T;T;T;T

MetaSVM

Uncertain

0.39

MutationAssessor

Benign

1.5

L;L;L;.;.;.;.;.;.

PrimateAI

Uncertain

0.52

PROVEAN

Benign

-0.41

N;N;N;.;N;.;N;N;.

REVEL

Benign

0.25

Sift

Benign

0.043

D;D;D;.;T;.;D;D;.

Sift4G

Benign

0.23

T;D;T;D;T;D;D;T;D

Polyphen

0.46

.;P;.;.;.;.;.;.;.

Vest4

0.28

MVP

0.79

MPC

0.23

ClinPred

0.034

GERP RS

1.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.17

gMVP

0.12

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