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GeneBe

4-70981999-G-A

Variant summary

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

The NM_173468.4(MOB1B):c.593G>A(p.Arg198Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000261 in 1,610,674 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

MOB1B
NM_173468.4 missense

Scores

2
2
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 10.0
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]

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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=0.038778096).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MOB1BNM_173468.4 linkuse as main transcriptc.593G>A p.Arg198Lys missense_variant 6/6 ENST00000309395.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MOB1BENST00000309395.7 linkuse as main transcriptc.593G>A p.Arg198Lys missense_variant 6/61 NM_173468.4 P1Q7L9L4-1
MOB1BENST00000396051.2 linkuse as main transcriptc.608G>A p.Arg203Lys missense_variant 7/72 Q7L9L4-2
MOB1BENST00000511449.1 linkuse as main transcriptn.428+11975G>A intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152108
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:
0.000963
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:
0.0000961
AC:
24
AN:
249822
Hom.:
0
AF XY:
0.000104
AC XY:
14
AN XY:
135182
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00131
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000254
AC:
37
AN:
1458448
Hom.:
0
Cov.:
28
AF XY:
0.0000220
AC XY:
16
AN XY:
725776
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000908
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000328
AC:
5
AN:
152226
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74410
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000965
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000227
ExAC
AF:
0.0000906
AC:
11
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

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 GeneticsJan 16, 2024The c.593G>A (p.R198K) alteration is located in exon 6 (coding exon 6) of the MOB1B gene. This alteration results from a G to A substitution at nucleotide position 593, causing the arginine (R) at amino acid position 198 to be replaced by a lysine (K). 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
0.095
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.19
Cadd
Benign
22
Dann
Benign
0.41
DEOGEN2
Benign
0.022
T;.
Eigen
Benign
-0.15
Eigen_PC
Benign
0.14
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.92
D;D
M_CAP
Benign
0.0077
T
MetaRNN
Benign
0.039
T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
-0.085
N;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.85
D
PROVEAN
Benign
1.2
N;N
REVEL
Uncertain
0.34
Sift
Benign
1.0
T;T
Sift4G
Benign
1.0
T;T
Polyphen
0.0
B;.
Vest4
0.57
MVP
0.51
MPC
0.12
ClinPred
0.22
T
GERP RS
5.6
Varity_R
0.30
gMVP
0.50

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.16
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: rs187615532; hg19: chr4-71847716; API