NM_032492.4:c.56A>G

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 3P and 1B. PM2PP3BP6

The NM_032492.4(JAGN1):c.56A>G(p.His19Arg) variant causes a missense change. The variant allele was found at a frequency of 0.0000118 in 1,609,802 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

JAGN1
NM_032492.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 6.05

Variant links:

Genes affected

JAGN1 (HGNC:26926): (jagunal homolog 1) The protein encoded by this gene is a transmembrane protein. It functions in the early secretory pathway and is necessary for neutrophil differentiation and survival. Mutations in this gene result in severe congenital neutropenia. [provided by RefSeq, Oct 2014]

JAGN1 links:

Genome browser will be placed here

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;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.746

BP6

Variant 3-9890778-A-G is Benign according to our data. Variant chr3-9890778-A-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 943976.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Likely_benign=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
JAGN1	NM_032492.4 link	c.56A>G	p.His19Arg	missense_variant	Exon 1 of 2	ENST00000647897.1	NP_115881.3	Q8N5M9
JAGN1	NM_001363890.1 link	c.-213A>G		5_prime_UTR_variant	Exon 1 of 2		NP_001350819.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
JAGN1	ENST00000647897.1 link	c.56A>G	p.His19Arg	missense_variant	Exon 1 of 2		NM_032492.4	ENSP00000496942.1		Q8N5M9
JAGN1	ENST00000489724.2 link	c.56A>G	p.His19Arg	missense_variant	Exon 1 of 2	3		ENSP00000497724.1		A0A3B3ITE9

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152174

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000588

AC:

AN:

238224

Hom.:

AF XY:

0.0000463

AC XY:

AN XY:

129468

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000420

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000123

AC:

AN:

1457628

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

724802

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000386

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152174

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74326

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000113

ExAC

AF:

0.0000412

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Autosomal recessive severe congenital neutropenia due to JAGN1 deficiency

Uncertain:1Benign:1

Sep 20, 2024

3billion, Medical Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The homozygous variant was found in patients diagnosed with another variant in a different gene, with no symptoms related to the gene containing the homozygous variant. -

Dec 04, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces histidine, which is basic and polar, with arginine, which is basic and polar, at codon 19 of the JAGN1 protein (p.His19Arg). This variant is present in population databases (rs748123071, gnomAD 0.04%). This variant has not been reported in the literature in individuals affected with JAGN1-related conditions. ClinVar contains an entry for this variant (Variation ID: 943976). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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

AlphaMissense

Pathogenic

0.81

BayesDel_addAF

Pathogenic

0.23

BayesDel_noAF

Pathogenic

0.41

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.85

D;.;D

Eigen

Pathogenic

0.80

Eigen_PC

Pathogenic

0.77

FATHMM_MKL

Uncertain

0.89

LIST_S2

Uncertain

0.87

.;D;D

M_CAP

Benign

0.034

MetaRNN

Pathogenic

0.75

D;D;D

MetaSVM

Uncertain

0.073

MutationAssessor

Pathogenic

3.0

M;.;M

PrimateAI

Pathogenic

0.82

PROVEAN

Pathogenic

-6.3

D;.;.

REVEL

Uncertain

0.58

Sift

Uncertain

0.0050

D;.;.

Sift4G

Uncertain

0.010

D;.;.

Polyphen

0.99

D;.;D

Vest4

0.91

MutPred

0.66

Gain of MoRF binding (P = 0.0131);Gain of MoRF binding (P = 0.0131);Gain of MoRF binding (P = 0.0131);

MVP

0.83

MPC

0.58

ClinPred

0.92

GERP RS

5.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.86

gMVP

0.70

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