Genetic Variant MOB1B:p.Thr101Met (chr4-70975179-C-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_173468.4(MOB1B):c.302C>T(p.Thr101Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000137 in 1,607,996 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 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

MOB1B
NM_173468.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.80

Variant links:

Genes affected

MOB1B (HGNC:29801): (MOB kinase activator 1B) The protein encoded by this gene is similar to the yeast Mob1 protein. Yeast Mob1 binds Mps1p, a protein kinase essential for spindle pole body duplication and mitotic checkpoint regulation. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2011]

MOB1B links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.3108058).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MOB1B	NM_173468.4 link	c.302C>T	p.Thr101Met	missense_variant	Exon 4 of 6	ENST00000309395.7	NP_775739.1	Q7L9L4-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MOB1B	ENST00000309395.7 link	c.302C>T	p.Thr101Met	missense_variant	Exon 4 of 6	1	NM_173468.4	ENSP00000310189.3		Q7L9L4-1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152046

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000725

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000163

AC:

AN:

246146

Hom.:

AF XY:

0.00000752

AC XY:

AN XY:

132998

show subpopulations

Gnomad AFR exome

AF:

0.0000619

Gnomad AMR exome

AF:

0.0000603

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000344

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000130

AC:

AN:

1455950

Hom.:

Cov.:

AF XY:

0.0000180

AC XY:

AN XY:

724186

show subpopulations

Gnomad4 AFR exome

AF:

0.000181

Gnomad4 AMR exome

AF:

0.0000460

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000354

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000631

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152046

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74248

show subpopulations

Gnomad4 AFR

AF:

0.0000725

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000565

Hom.:

Bravo

AF:

0.0000189

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Mar 03, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.302C>T (p.T101M) alteration is located in exon 4 (coding exon 4) of the MOB1B gene. This alteration results from a C to T substitution at nucleotide position 302, causing the threonine (T) at amino acid position 101 to be replaced by a methionine (M). 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

0.088

BayesDel_addAF

Uncertain

0.047

BayesDel_noAF

Uncertain

0.010

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Benign

0.038

.;T;.

Eigen

Uncertain

0.26

Eigen_PC

Uncertain

0.45

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.97

D;D;D

M_CAP

Benign

0.017

MetaRNN

Benign

0.31

T;T;T

MetaSVM

Benign

-0.89

MutationAssessor

Benign

1.9

.;L;.

PrimateAI

Pathogenic

0.90

PROVEAN

Benign

-0.53

N;N;N

REVEL

Benign

0.24

Sift

Benign

0.10

T;T;T

Sift4G

Benign

0.10

T;T;T

Polyphen

0.061

.;B;.

Vest4

0.62, 0.63

MutPred

0.23

.;Loss of phosphorylation at T101 (P = 0.0686);.;

MVP

0.84

MPC

0.16

ClinPred

0.23

GERP RS

6.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.7

Varity_R

0.086

gMVP

0.44

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