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GeneBe

21-41435880-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_002462.5(MX1):c.149G>A(p.Arg50His) variant causes a missense change. The variant allele was found at a frequency of 0.000159 in 1,613,656 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00016 ( 0 hom. )

Consequence

MX1
NM_002462.5 missense

Scores

11
6
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.75
Variant links:
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.871

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MX1NM_002462.5 linkuse as main transcriptc.149G>A p.Arg50His missense_variant 6/17 ENST00000398598.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MX1ENST00000398598.8 linkuse as main transcriptc.149G>A p.Arg50His missense_variant 6/171 NM_002462.5 P1P20591-1

Frequencies

GnomAD3 genomes
AF:
0.000105
AC:
16
AN:
152170
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000966
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000132
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000717
AC:
18
AN:
251166
Hom.:
0
AF XY:
0.0000737
AC XY:
10
AN XY:
135710
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000115
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000165
AC:
241
AN:
1461368
Hom.:
0
Cov.:
31
AF XY:
0.000168
AC XY:
122
AN XY:
726872
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000447
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000198
Gnomad4 OTH exome
AF:
0.000265
GnomAD4 genome
AF:
0.000105
AC:
16
AN:
152288
Hom.:
0
Cov.:
33
AF XY:
0.0000806
AC XY:
6
AN XY:
74468
show subpopulations
Gnomad4 AFR
AF:
0.0000963
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000132
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000290
Hom.:
0
Bravo
AF:
0.000110
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000741
AC:
9
EpiCase
AF:
0.000109
EpiControl
AF:
0.000356

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJun 11, 2021The c.149G>A (p.R50H) alteration is located in exon 8 (coding exon 2) of the MX1 gene. This alteration results from a G to A substitution at nucleotide position 149, causing the arginine (R) at amino acid position 50 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.58
BayesDel_addAF
Pathogenic
0.23
D
BayesDel_noAF
Pathogenic
0.32
Cadd
Pathogenic
32
Dann
Pathogenic
1.0
DEOGEN2
Uncertain
0.67
D;.;D;D;.;T;T;T;.
Eigen
Pathogenic
0.82
Eigen_PC
Pathogenic
0.74
FATHMM_MKL
Uncertain
0.95
D
M_CAP
Uncertain
0.16
D
MetaRNN
Pathogenic
0.87
D;D;D;D;D;D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Uncertain
2.9
M;.;M;M;.;.;.;.;M
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.62
T
PROVEAN
Pathogenic
-4.7
D;D;D;D;D;D;D;D;.
REVEL
Pathogenic
0.91
Sift
Uncertain
0.0010
D;D;D;D;D;D;D;D;.
Sift4G
Pathogenic
0.0010
D;D;D;D;D;D;D;D;D
Polyphen
1.0
D;.;D;D;.;.;.;.;.
Vest4
0.72
MVP
0.99
MPC
0.58
ClinPred
0.93
D
GERP RS
4.5
Varity_R
0.69
gMVP
0.77

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs138644617; hg19: chr21-42807807; COSMIC: COSV55821766; COSMIC: COSV55821766; API