Variant 19-13764665-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001031727.4(MRI1):c.77G>A(p.Arg26His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000225 in 1,599,904 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 29)

Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

MRI1
NM_001031727.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.395

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]

MRI1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06652406).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MRI1	NM_001031727.4 linkuse as main transcript	c.77G>A	p.Arg26His	missense_variant	1/6	ENST00000040663.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MRI1	ENST00000040663.8 linkuse as main transcript	c.77G>A	p.Arg26His	missense_variant	1/6	1	NM_001031727.4	P1	Q9BV20-1

Frequencies

GnomAD3 genomes

AF:

0.0000725

AC:

AN:

151818

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

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:

0.000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000173

AC:

AN:

1448086

Hom.:

Cov.:

AF XY:

0.0000166

AC XY:

AN XY:

720794

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000226

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000217

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000725

AC:

AN:

151818

Hom.:

Cov.:

AF XY:

0.0000944

AC XY:

AN XY:

74166

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000168

Hom.:

Bravo

AF:

0.0000869

ExAC

AF:

0.0000496

AC:

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 submitter

clinical testing

Ambry Genetics

Apr 20, 2023

The c.77G>A (p.R26H) alteration is located in exon 1 (coding exon 1) of the MRI1 gene. This alteration results from a G to A substitution at nucleotide position 77, causing the arginine (R) at amino acid position 26 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

Benign

0.078

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.70

Cadd

Benign

Dann

Benign

0.95

Eigen

Benign

-1.0

Eigen_PC

Benign

-0.92

FATHMM_MKL

Benign

0.47

LIST_S2

Benign

0.65

T;T

M_CAP

Benign

0.010

MetaRNN

Benign

0.067

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.58

N;N

MutationTaster

Benign

0.97

N;N

PrimateAI

Benign

0.46

PROVEAN

Benign

-1.1

N;N

REVEL

Benign

0.030

Sift

Benign

0.30

T;T

Sift4G

Benign

0.67

T;T

Polyphen

0.0030

B;B

Vest4

0.076

MVP

0.13

MPC

0.29

ClinPred

0.059

GERP RS

-0.96

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.15

gMVP

0.32

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

Publications

LitVar

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over