16-56653052-G-A

Variant summary

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

The NM_005947.3(MT1B):​c.173G>A​(p.Arg58His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000369 in 1,461,630 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.000037 ( 0 hom. )

Consequence

MT1B
NM_005947.3 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.17
Variant links:
Genes affected
MT1B (HGNC:7394): (metallothionein 1B) The protein encoded by this gene binds heavy metals and protects against toxicity from heavy metal ions. This gene is found in a cluster of similar genes on chromosome 16. [provided by RefSeq, Jul 2016]

Genome browser will be placed here

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=0.18388769).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MT1BNM_005947.3 linkuse as main transcriptc.173G>A p.Arg58His missense_variant 3/3 ENST00000334346.3 NP_005938.1 P07438

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MT1BENST00000334346.3 linkuse as main transcriptc.173G>A p.Arg58His missense_variant 3/31 NM_005947.3 ENSP00000334998.2 P07438
MT1BENST00000562399.1 linkuse as main transcriptc.171G>A p.Pro57Pro synonymous_variant 3/33 ENSP00000456056.1 H3BR34

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251240
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135762
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000369
AC:
54
AN:
1461630
Hom.:
0
Cov.:
33
AF XY:
0.0000399
AC XY:
29
AN XY:
727126
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000441
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
33
Bravo
AF:
0.00000756
ExAC
AF:
0.0000412
AC:
5

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 GeneticsOct 20, 2023The c.173G>A (p.R58H) alteration is located in exon 3 (coding exon 3) of the MT1B gene. This alteration results from a G to A substitution at nucleotide position 173, causing the arginine (R) at amino acid position 58 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
0.068
BayesDel_addAF
Benign
-0.40
T
BayesDel_noAF
Benign
-0.63
CADD
Benign
17
DANN
Benign
0.94
DEOGEN2
Benign
0.11
T
Eigen
Benign
-0.44
Eigen_PC
Benign
-0.50
FATHMM_MKL
Benign
0.68
D
LIST_S2
Benign
0.52
T
M_CAP
Benign
0.015
T
MetaRNN
Benign
0.18
T
MetaSVM
Benign
-1.0
T
PrimateAI
Benign
0.23
T
PROVEAN
Benign
-0.23
N
REVEL
Benign
0.049
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0050
D
Polyphen
0.66
P
Vest4
0.095
MutPred
0.39
Gain of ubiquitination at K56 (P = 0.0329);
MVP
0.014
MPC
0.086
ClinPred
0.98
D
GERP RS
0.88
Varity_R
0.076
gMVP
0.096

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: rs200369659; hg19: chr16-56686964; COSMIC: COSV57618884; COSMIC: COSV57618884; API