Genetic Variant MOB1B:p.Val147Ala (chr4-70979158-T-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_173468.4(MOB1B):c.440T>C(p.Val147Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000146 in 1,613,662 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

MOB1B
NM_173468.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.02

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MOB1B	NM_173468.4 link	c.440T>C	p.Val147Ala	missense_variant	Exon 5 of 6	ENST00000309395.7	NP_775739.1	Q7L9L4-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MOB1B	ENST00000309395.7 link	c.440T>C	p.Val147Ala	missense_variant	Exon 5 of 6	1	NM_173468.4	ENSP00000310189.3	Q7L9L4-1
MOB1B	ENST00000396051.2 link	c.455T>C	p.Val152Ala	missense_variant	Exon 6 of 7	2		ENSP00000379366.2	Q7L9L4-2
MOB1B	ENST00000511449.1 link	n.428+9134T>C		intron_variant	Intron 3 of 4	3

Frequencies

GnomAD3 genomes

AF:

0.000118

AC:

AN:

152204

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

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:

0.000220

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000637

AC:

AN:

251130

Hom.:

AF XY:

0.0000810

AC XY:

AN XY:

135724

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.000132

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000148

AC:

217

AN:

1461458

Hom.:

Cov.:

AF XY:

0.000133

AC XY:

AN XY:

727034

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

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:

0.000190

Gnomad4 OTH exome

AF:

0.0000828

GnomAD4 genome

AF:

0.000118

AC:

AN:

152204

Hom.:

Cov.:

AF XY:

0.000134

AC XY:

AN XY:

74358

show subpopulations

Gnomad4 AFR

AF:

0.0000724

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:

0.000220

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000204

Hom.:

Bravo

AF:

0.000106

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000412

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.000237

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 20, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.440T>C (p.V147A) alteration is located in exon 5 (coding exon 5) of the MOB1B gene. This alteration results from a T to C substitution at nucleotide position 440, causing the valine (V) at amino acid position 147 to be replaced by an alanine (A). 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

Uncertain

0.55

BayesDel_addAF

Uncertain

0.041

BayesDel_noAF

Pathogenic

0.14

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.19

T;.

Eigen

Uncertain

0.39

Eigen_PC

Uncertain

0.47

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.92

D;D

M_CAP

Benign

0.0092

MetaRNN

Uncertain

0.67

D;D

MetaSVM

Benign

-0.50

MutationAssessor

Benign

2.0

M;.

PrimateAI

Pathogenic

0.91

PROVEAN

Uncertain

-2.9

D;D

REVEL

Uncertain

0.36

Sift

Benign

0.036

D;D

Sift4G

Benign

0.20

T;T

Polyphen

0.29

B;.

Vest4

0.80

MVP

0.87

MPC

0.16

ClinPred

0.20

GERP RS

5.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.22

gMVP

0.59

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