rs45430

Positions:

• chr21-41374154-C-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_002463.2(MX2):​c.-71-2682C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.492 in 152,258 control chromosomes in the GnomAD database, including 21,897 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.49 (21890 hom., cov: 33)
  • Exomes 𝑓: 0.54 (7 hom.)
• Consequence: MX2 NM_002463.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0460

Genes affected

MX2 (HGNC:7533): (MX dynamin like GTPase 2) The protein encoded by this gene has a nuclear and a cytoplasmic form and is a member of both the dynamin family and the family of large GTPases. The nuclear form is localized in a granular pattern in the heterochromatin region beneath the nuclear envelope. A nuclear localization signal (NLS) is present at the amino terminal end of the nuclear form but is lacking in the cytoplasmic form due to use of an alternate translation start codon. This protein is upregulated by interferon-alpha but does not contain the antiviral activity of a similar myxovirus resistance protein 1. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.89).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.773 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MX2	NM_002463.2	c.-71-2682C>T		intron_variant		ENST00000330714.8	NP_002454.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MX2	ENST00000330714.8	c.-71-2682C>T		intron_variant		1	NM_002463.2	ENSP00000333657.3

Frequencies

GnomAD3 genomes AF: 0.492 AC: 74873 AN: 152088 Hom.: 21886 Cov.: 33

Gnomad AFR AF: 0.159

Gnomad AMI AF: 0.572

Gnomad AMR AF: 0.651

Gnomad ASJ AF: 0.531

Gnomad EAS AF: 0.794

Gnomad SAS AF: 0.595

Gnomad FIN AF: 0.627

Gnomad MID AF: 0.465

Gnomad NFE AF: 0.605

Gnomad OTH AF: 0.495

GnomAD4 exome AF: 0.538 AC: 28 AN: 52 Hom.: 7 Cov.: 0 AF XY: 0.500 AC XY: 15 AN XY: 30

Gnomad4 FIN exome AF: 0.500

Gnomad4 NFE exome AF: 0.450

Gnomad4 OTH exome AF: 1.00

GnomAD4 genome AF: 0.492 AC: 74877 AN: 152206 Hom.: 21890 Cov.: 33 AF XY: 0.500 AC XY: 37213 AN XY: 74408

Gnomad4 AFR AF: 0.158

Gnomad4 AMR AF: 0.652

Gnomad4 ASJ AF: 0.531

Gnomad4 EAS AF: 0.794

Gnomad4 SAS AF: 0.597

Gnomad4 FIN AF: 0.627

Gnomad4 NFE AF: 0.605

Gnomad4 OTH AF: 0.493

Alfa AF: 0.593 Hom.: 58634

Bravo AF: 0.483

Asia WGS AF: 0.643 AC: 2235 AN: 3476

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.89
CADD	Benign	2.0
DANN	Benign	0.75

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

Publications

LitVar

Other links and lift over

dbSNP: rs45430; hg19: chr21-42746081;