rs1553327531

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2PP2PP3_Moderate

The NM_000254.3(MTR):ā€‹c.2738A>Gā€‹(p.Tyr913Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000373 in 1,608,872 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Y913F) has been classified as Uncertain significance.

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000034 ( 0 hom. )

Consequence

MTR
NM_000254.3 missense

Scores

13
5
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 8.54
Variant links:
Genes affected
MTR (HGNC:7468): (5-methyltetrahydrofolate-homocysteine methyltransferase) This gene encodes the 5-methyltetrahydrofolate-homocysteine methyltransferase. This enzyme, also known as cobalamin-dependent methionine synthase, catalyzes the final step in methionine biosynthesis. Mutations in MTR have been identified as the underlying cause of methylcobalamin deficiency complementation group G. Alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, May 2014]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), MTR. . Gene score misZ 2.0433 (greater than the threshold 3.09). Trascript score misZ 3.2999 (greater than threshold 3.09). GenCC has associacion of gene with methylcobalamin deficiency type cblG.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.867

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MTRNM_000254.3 linkuse as main transcriptc.2738A>G p.Tyr913Cys missense_variant 26/33 ENST00000366577.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MTRENST00000366577.10 linkuse as main transcriptc.2738A>G p.Tyr913Cys missense_variant 26/331 NM_000254.3 P1Q99707-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152230
Hom.:
0
Cov.:
32
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000343
AC:
5
AN:
1456642
Hom.:
0
Cov.:
29
AF XY:
0.00000414
AC XY:
3
AN XY:
725066
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
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:
0.00000452
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152230
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74380
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.63
BayesDel_addAF
Pathogenic
0.36
D
BayesDel_noAF
Pathogenic
0.28
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.83
.;D;.
Eigen
Pathogenic
1.0
Eigen_PC
Pathogenic
0.95
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.97
D;D;D
M_CAP
Uncertain
0.26
D
MetaRNN
Pathogenic
0.87
D;D;D
MetaSVM
Uncertain
0.57
D
MutationAssessor
Pathogenic
4.2
.;H;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.80
T
PROVEAN
Pathogenic
-9.0
D;D;D
REVEL
Pathogenic
0.80
Sift
Uncertain
0.0010
D;D;D
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
1.0
.;D;.
Vest4
0.76
MutPred
0.52
.;Loss of phosphorylation at Y913 (P = 0.0562);.;
MVP
0.96
MPC
1.4
ClinPred
1.0
D
GERP RS
6.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.79
gMVP
0.86

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.

Other links and lift over

dbSNP: rs1553327531; hg19: chr1-237048482; API