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GeneBe

1-154273387-GGAAGAA-GGAAGAAGAAGAA

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_006118.4(HAX1):c.116_121dup(p.Glu39_Glu40dup) variant causes a inframe insertion change. The variant allele was found at a frequency of 0.0000124 in 1,612,938 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

HAX1
NM_006118.4 inframe_insertion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.91
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HAX1NM_006118.4 linkuse as main transcriptc.116_121dup p.Glu39_Glu40dup inframe_insertion 2/7 ENST00000328703.12
HAX1NM_001018837.2 linkuse as main transcriptc.54-82_54-77dup intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HAX1ENST00000328703.12 linkuse as main transcriptc.116_121dup p.Glu39_Glu40dup inframe_insertion 2/71 NM_006118.4 P3O00165-1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151834
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.000481
GnomAD3 exomes
AF:
0.0000202
AC:
5
AN:
247562
Hom.:
0
AF XY:
0.0000299
AC XY:
4
AN XY:
133932
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000876
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000179
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000123
AC:
18
AN:
1461104
Hom.:
0
Cov.:
33
AF XY:
0.0000179
AC XY:
13
AN XY:
726910
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000135
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151834
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
74158
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000481
Bravo
AF:
0.00000756
EpiCase
AF:
0.00
EpiControl
AF:
0.0000595

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Kostmann syndrome Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeNov 02, 2022This variant, c.116_121dup, results in the insertion of 2 amino acid(s) of the HAX1 protein (p.Glu39_Glu40dup), but otherwise preserves the integrity of the reading frame. This variant is present in population databases (rs753894148, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with HAX1-related conditions. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

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.

Other links and lift over

dbSNP: rs753894148; hg19: chr1-154245863; API