chr21-41432092-A-G

Variant names:

• chr21-41432092-A-G
• rs147615997
• NM_002462.5:c.22A>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_002462.5(MX1):​c.22A>G​(p.Ile8Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000075 in 1,614,208 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. 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. I8M) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000033 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000079 (1 hom.)
• Consequence: MX1 NM_002462.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.413
• Publications: 1 publications found

Genes affected

MX1 (HGNC:7532): (MX dynamin like GTPase 1) This gene encodes a guanosine triphosphate (GTP)-metabolizing protein that participates in the cellular antiviral response. The encoded protein is induced by type I and type II interferons and antagonizes the replication process of several different RNA and DNA viruses. There is a related gene located adjacent to this gene on chromosome 21, and there are multiple pseudogenes located in a cluster on chromosome 4. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2013]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.04830119).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002462.5. 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
	MX1	NM_002462.5	MANE Select	c.22A>G	p.Ile8Val	missense	Exon 5 of 17	NP_002453.2	P20591-1
	MX1	NM_001144925.2		c.22A>G	p.Ile8Val	missense	Exon 7 of 19	NP_001138397.1	P20591-1
	MX1	NM_001178046.3		c.22A>G	p.Ile8Val	missense	Exon 3 of 15	NP_001171517.1	P20591-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MX1	ENST00000398598.8	TSL:1 MANE Select	c.22A>G	p.Ile8Val	missense	Exon 5 of 17	ENSP00000381599.3	P20591-1
	MX1	ENST00000455164.6	TSL:1	c.22A>G	p.Ile8Val	missense	Exon 3 of 15	ENSP00000410523.2	P20591-1
	MX1	ENST00000896042.1		c.22A>G	p.Ile8Val	missense	Exon 5 of 18	ENSP00000566101.1

Frequencies

GnomAD3 genomes AF: 0.0000328 AC: 5 AN: 152264 Hom.: 0 Cov.: 33

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: 0.0000735

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000597 AC: 15 AN: 251422 AF XY: 0.0000736

Gnomad AFR exome AF: 0.0000615

Gnomad AMR exome AF: 0.0000289

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000114

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000794 AC: 116 AN: 1461826 Hom.: 1 Cov.: 31 AF XY: 0.0000756 AC XY: 55 AN XY: 727226

African (AFR) AF: 0.0000299 AC: 1 AN: 33480

American (AMR) AF: 0.0000447 AC: 2 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

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

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86258

European-Finnish (FIN) AF: 0.0000375 AC: 2 AN: 53362

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

European-Non Finnish (NFE) AF: 0.0000980 AC: 109 AN: 1112006

Other (OTH) AF: 0.0000166 AC: 1 AN: 60394

GnomAD4 genome AF: 0.0000328 AC: 5 AN: 152382 Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1 AN XY: 74522

African (AFR) AF: 0.00 AC: 0 AN: 41590

American (AMR) AF: 0.00 AC: 0 AN: 15312

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5188

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10630

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.0000735 AC: 5 AN: 68036

Other (OTH) AF: 0.00 AC: 0 AN: 2116

Alfa AF: 0.0000764 Hom.: 0

Bravo AF: 0.0000227

TwinsUK AF: 0.000270 AC: 1

ALSPAC AF: 0.00 AC: 0

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000116 AC: 1

ExAC AF: 0.0000988 AC: 12

EpiCase AF: 0.000109

EpiControl AF: 0.0000593

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.058
BayesDel_addAF	Benign	-0.20	T
BayesDel_noAF	Benign	-0.27
CADD	Benign	0.014
DANN	Benign	0.48
DEOGEN2	Benign	0.11	T
Eigen	Benign	-1.4
Eigen_PC	Benign	-1.5
FATHMM_MKL	Benign	0.010	N
LIST_S2	Benign	0.58	T
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.048	T
MetaSVM	Benign	-0.43	T
MutationAssessor	Benign	1.2	L
PhyloP100		-0.41
PrimateAI	Benign	0.28	T
PROVEAN	Benign	0.10	N
REVEL	Benign	0.26
Sift	Benign	0.25	T
Sift4G	Benign	1.0	T
Polyphen		0.0	B
Vest4		0.13
MVP		0.68
MPC		0.088
ClinPred		0.068	T
GERP RS		-0.83
PromoterAI		0.032	Neutral
Varity_R		0.031
gMVP		0.21
Mutation Taster		=100/0	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: rs147615997; hg19: chr21-42804019;