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GeneBe

19-13766108-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001031727.4(MRI1):c.526G>A(p.Ala176Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000926 in 1,598,106 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000095 ( 0 hom. )

Consequence

MRI1
NM_001031727.4 missense

Scores

2
9
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.73
Variant links:
Genes affected
MRI1 (HGNC:28469): (methylthioribose-1-phosphate isomerase 1) This enzyme functions in the methionine salvage pathway by catalyzing the interconversion of methylthioribose-1-phosphate and methythioribulose-1-phosphate. Elevated expression of the encoded protein is associated with metastatic melanoma and this protein promotes melanoma cell invasion independent of its enzymatic activity. Mutations in this gene may be associated with vanishing white matter disease (VMWD). [provided by RefSeq, Jul 2016]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.25427854).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MRI1NM_001031727.4 linkuse as main transcriptc.526G>A p.Ala176Thr missense_variant 3/6 ENST00000040663.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MRI1ENST00000040663.8 linkuse as main transcriptc.526G>A p.Ala176Thr missense_variant 3/61 NM_001031727.4 P1Q9BV20-1

Frequencies

GnomAD3 genomes
AF:
0.0000723
AC:
11
AN:
152232
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00115
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000185
AC:
44
AN:
238478
Hom.:
0
AF XY:
0.000177
AC XY:
23
AN XY:
129596
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000611
Gnomad ASJ exome
AF:
0.000109
Gnomad EAS exome
AF:
0.00106
Gnomad SAS exome
AF:
0.000172
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000112
Gnomad OTH exome
AF:
0.000867
GnomAD4 exome
AF:
0.0000948
AC:
137
AN:
1445756
Hom.:
0
Cov.:
31
AF XY:
0.0000990
AC XY:
71
AN XY:
717238
show subpopulations
Gnomad4 AFR exome
AF:
0.0000302
Gnomad4 AMR exome
AF:
0.0000926
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00130
Gnomad4 SAS exome
AF:
0.000165
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000508
Gnomad4 OTH exome
AF:
0.000168
GnomAD4 genome
AF:
0.0000722
AC:
11
AN:
152350
Hom.:
0
Cov.:
31
AF XY:
0.000121
AC XY:
9
AN XY:
74502
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00116
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000543
Hom.:
0
Bravo
AF:
0.0000793
ExAC
AF:
0.000198
AC:
24
Asia WGS
AF:
0.00375
AC:
13
AN:
3478

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 GeneticsJul 14, 2021The c.526G>A (p.A176T) alteration is located in exon 3 (coding exon 3) of the MRI1 gene. This alteration results from a G to A substitution at nucleotide position 526, causing the alanine (A) at amino acid position 176 to be replaced by a threonine (T). 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
Benign
0.26
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.27
Cadd
Uncertain
26
Dann
Pathogenic
1.0
DEOGEN2
Uncertain
0.63
D
Eigen
Uncertain
0.51
Eigen_PC
Uncertain
0.41
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Benign
0.053
D
MetaRNN
Benign
0.25
T
MetaSVM
Benign
-0.66
T
MutationAssessor
Uncertain
2.7
M
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.70
T
PROVEAN
Uncertain
-3.8
D
REVEL
Benign
0.25
Sift
Uncertain
0.0020
D
Sift4G
Uncertain
0.0040
D
Polyphen
0.99
D
Vest4
0.64
MVP
0.58
MPC
0.85
ClinPred
0.21
T
GERP RS
3.1
Varity_R
0.87
gMVP
0.86

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.13
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: rs139240039; hg19: chr19-13876922; COSMIC: COSV50004389; COSMIC: COSV50004389; API