NM_006118.4:c.256C>G

Variant names:

• chr1-154273538-C-G
• rs121908165
• NM_006118.4:c.256C>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_006118.4(HAX1):​c.256C>G​(p.Arg86Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000805 in 1,613,988 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R86P) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 31)
  • Exomes 𝑓: 0.0000075 (0 hom.)
• Consequence: HAX1 NM_006118.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 4.12
• Publications: 12 publications found

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 Gene-Disease associations (from GenCC):

• Kostmann syndrome

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, G2P, Orphanet, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006118.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HAX1	NM_006118.4	MANE Select	c.256C>G	p.Arg86Gly	missense	Exon 2 of 7	NP_006109.2
	HAX1	NM_001018837.2		c.112C>G	p.Arg38Gly	missense	Exon 2 of 7	NP_001018238.1	A0A0S2Z565

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HAX1	ENST00000328703.12	TSL:1 MANE Select	c.256C>G	p.Arg86Gly	missense	Exon 2 of 7	ENSP00000329002.7	O00165-1
	HAX1	ENST00000457918.6	TSL:1	c.112C>G	p.Arg38Gly	missense	Exon 2 of 7	ENSP00000411448.2	O00165-5
	HAX1	ENST00000483970.7	TSL:2	c.256C>G	p.Arg86Gly	missense	Exon 2 of 7	ENSP00000435088.1	O00165-2

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152108 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.0000242

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: 0.00

GnomAD4 exome AF: 0.00000752 AC: 11 AN: 1461880 Hom.: 0 Cov.: 33 AF XY: 0.00000825 AC XY: 6 AN XY: 727240

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.0000187 AC: 1 AN: 53420

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000809 AC: 9 AN: 1112000

Other (OTH) AF: 0.0000166 AC: 1 AN: 60396

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152108 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 74294

African (AFR) AF: 0.0000242 AC: 1 AN: 41394

American (AMR) AF: 0.00 AC: 0 AN: 15270

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5196

South Asian (SAS) AF: 0.00 AC: 0 AN: 4824

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10602

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68034

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000113

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	1	-	Inborn genetic diseases (1)
-	1	-	Kostmann syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.20
BayesDel_addAF	Pathogenic	0.21	D
BayesDel_noAF	Uncertain	0.070
CADD	Uncertain	25
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.76	D
Eigen	Benign	0.10
Eigen_PC	Uncertain	0.26
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Benign	0.64	T
M_CAP	Benign	0.018	T
MetaRNN	Uncertain	0.49	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.9	L
PhyloP100		4.1
PrimateAI	Uncertain	0.54	T
PROVEAN	Pathogenic	-4.8	D
REVEL	Benign	0.26
Sift	Uncertain	0.0050	D
Sift4G	Benign	0.071	T
Polyphen		0.016	B
Vest4		0.78
MutPred		0.38		Gain of catalytic residue at N89 (P = 0.1153)
MVP		0.70
MPC		0.31
ClinPred		0.99	D
GERP RS		5.6
Varity_R		0.62
gMVP		0.55
Mutation Taster		=73/27	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs121908165; hg19: chr1-154246014;