rs138296453

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 0P and 1B. BP4

The NM_006118.4(HAX1):c.829C>T(p.Arg277Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0002 in 1,612,860 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. R277R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 31)

Exomes 𝑓: 0.00020 ( 2 hom. )

Consequence

HAX1
NM_006118.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 1.23

Variant links:

Genes affected

HAX1 (HGNC:16915): (HCLS1 associated protein X-1) The protein encoded by this gene is known to associate with hematopoietic cell-specific Lyn substrate 1, a substrate of Src family tyrosine kinases. It also interacts with the product of the polycystic kidney disease 2 gene, mutations in which are associated with autosomal-dominant polycystic kidney disease, and with the F-actin-binding protein, cortactin. It was earlier thought that this gene product is mainly localized in the mitochondria, however, recent studies indicate it to be localized in the cell body. Mutations in this gene result in autosomal recessive severe congenital neutropenia, also known as Kostmann disease. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

HAX1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -1 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.29608178).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HAX1	NM_006118.4 linkuse as main transcript	c.829C>T	p.Arg277Trp	missense_variant	7/7	ENST00000328703.12
HAX1	NM_001018837.2 linkuse as main transcript	c.685C>T	p.Arg229Trp	missense_variant	7/7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HAX1	ENST00000328703.12 linkuse as main transcript	c.829C>T	p.Arg277Trp	missense_variant	7/7	1	NM_006118.4	P3	O00165-1

Frequencies

GnomAD3 genomes

AF:

0.000184

AC:

AN:

152080

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000725

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000338

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000836

AC:

AN:

251346

Hom.:

AF XY:

0.0000736

AC XY:

AN XY:

135842

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000868

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.000131

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000106

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000201

AC:

294

AN:

1460662

Hom.:

Cov.:

AF XY:

0.000193

AC XY:

140

AN XY:

726694

show subpopulations

Gnomad4 AFR exome

AF:

0.0000598

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.000174

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000221

Gnomad4 OTH exome

AF:

0.000414

GnomAD4 genome

AF:

0.000184

AC:

AN:

152198

Hom.:

Cov.:

AF XY:

0.000202

AC XY:

AN XY:

74420

show subpopulations

Gnomad4 AFR

AF:

0.0000723

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000338

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000190

Hom.:

Bravo

AF:

0.000181

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000698

AC:

ExAC

AF:

0.000107

AC:

EpiCase

AF:

0.000164

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Kostmann syndrome

Uncertain:3

Uncertain significance, criteria provided, single submitter	clinical testing	Invitae	Jul 25, 2022	This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 277 of the HAX1 protein (p.Arg277Trp). This variant is present in population databases (rs138296453, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with HAX1-related conditions. ClinVar contains an entry for this variant (Variation ID: 543083). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Uncertain significance, no assertion criteria provided	clinical testing	Natera, Inc.	Jan 08, 2020	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Fulgent Genetics, Fulgent Genetics	Oct 31, 2018	- -

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 23, 2023

The c.829C>T (p.R277W) alteration is located in exon 7 (coding exon 7) of the HAX1 gene. This alteration results from a C to T substitution at nucleotide position 829, causing the arginine (R) at amino acid position 277 to be replaced by a tryptophan (W). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Oct 12, 2023

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.097

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.18

Cadd

Benign

Dann

Uncertain

1.0

DEOGEN2

Uncertain

0.72

D;.;.;T

Eigen

Uncertain

0.29

Eigen_PC

Benign

0.22

FATHMM_MKL

Uncertain

0.91

LIST_S2

Benign

0.81

T;T;T;T

M_CAP

Benign

0.031

MetaRNN

Benign

0.30

T;T;T;T

MetaSVM

Benign

-0.39

MutationAssessor

Uncertain

2.6

M;.;.;.

MutationTaster

Benign

0.96

D;D;D;D

PrimateAI

Uncertain

0.56

PROVEAN

Uncertain

-3.2

D;D;D;D

REVEL

Uncertain

0.37

Sift

Uncertain

0.0010

D;D;D;D

Sift4G

Uncertain

0.0020

D;D;D;D

Polyphen

1.0

D;D;D;.

Vest4

0.32

MVP

0.96

MPC

0.42

ClinPred

0.39

GERP RS

3.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.20

gMVP

0.40

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