1-158847809-C-A

Variant names:

• chr1-158847809-C-A
• rs2276403
• NM_002432.3:c.1069C>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_002432.3(MNDA):​c.1069C>A​(p.His357Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: MNDA NM_002432.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.930
• Publications: 0 publications found

Genes affected

MNDA (HGNC:7183): (myeloid cell nuclear differentiation antigen) The myeloid cell nuclear differentiation antigen (MNDA) is detected only in nuclei of cells of the granulocyte-monocyte lineage. A 200-amino acid region of human MNDA is strikingly similar to a region in the proteins encoded by a family of interferon-inducible mouse genes, designated Ifi-201, Ifi-202, and Ifi-203, that are not regulated in a cell- or tissue-specific fashion. The 1.8-kb MNDA mRNA, which contains an interferon-stimulated response element in the 5-prime untranslated region, was significantly upregulated in human monocytes exposed to interferon alpha. MNDA is located within 2,200 kb of FCER1A, APCS, CRP, and SPTA1. In its pattern of expression and/or regulation, MNDA resembles IFI16, suggesting that these genes participate in blood cell-specific responses to interferons. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.23156768).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MNDA	NM_002432.3	c.1069C>A	p.His357Asn	missense_variant	Exon 6 of 7	ENST00000368141.5	NP_002423.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MNDA	ENST00000368141.5	c.1069C>A	p.His357Asn	missense_variant	Exon 6 of 7	1	NM_002432.3	ENSP00000357123.4
MNDA	ENST00000438394.1	c.184C>A	p.His62Asn	missense_variant	Exon 2 of 3	3		ENSP00000406800.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Jan 07, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.H357N variant (also known as c.1069C>A), located in coding exon 5 of the MNDA gene, results from a C to A substitution at nucleotide position 1069. The histidine at codon 357 is replaced by asparagine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.25
BayesDel_addAF	Benign	-0.28	T
BayesDel_noAF	Benign	-0.64
CADD	Benign	11
DANN	Benign	0.92
DEOGEN2	Benign	0.026	T
Eigen	Benign	-0.43
Eigen_PC	Benign	-0.67
FATHMM_MKL	Benign	0.028	N
LIST_S2	Benign	0.84	T
M_CAP	Benign	0.0032	T
MetaRNN	Benign	0.23	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.9	L
PhyloP100		-0.93
PrimateAI	Benign	0.42	T
PROVEAN	Uncertain	-4.2	D
REVEL	Benign	0.055
Sift	Benign	0.093	T
Sift4G	Benign	0.83	T
Polyphen		1.0	D
Vest4		0.27
MutPred		0.57		Gain of catalytic residue at H357 (P = 0.0508);
MVP		0.34
MPC		0.053
ClinPred		0.78	D
GERP RS		-2.1
Varity_R		0.13
gMVP		0.043
Mutation Taster		=99/1	polymorphism

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

Other links and lift over

dbSNP: rs2276403; hg19: chr1-158817599;