Genetic Variant MEX3B:p.Cys438Tyr (chr15-82043557-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_032246.6(MEX3B):c.1313G>A(p.Cys438Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000145 in 1,540,438 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00014 ( 1 hom. )

Consequence

MEX3B
NM_032246.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.11

Publications

1 publications found

Variant links:

Genes affected

MEX3B (HGNC:25297): (mex-3 RNA binding family member B) This gene encodes an RNA-binding phosphoprotein that is part of the MEX3 (muscle excess 3) family of translational regulators. The encoded protein contains N-terminal nuclear export and nuclear localization signals and is exported from the cytoplasm to the nucleus. The protein binds to RNA via two KH domains and also colocalizes with MEX3A, Dcp1A decapping factor and Argonaute proteins within P (processing) bodies. [provided by RefSeq, Oct 2012]

MEX3B links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.016490966).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032246.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MEX3B	NM_032246.6	MANE Select	c.1313G>A	p.Cys438Tyr	missense	Exon 2 of 2	NP_115622.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MEX3B	ENST00000329713.5	TSL:1 MANE Select	c.1313G>A	p.Cys438Tyr	missense	Exon 2 of 2	ENSP00000329918.4	Q6ZN04-1
	MEX3B	ENST00000558133.1	TSL:6	c.*1672G>A		3_prime_UTR	Exon 1 of 1	ENSP00000456938.1	Q6ZN04-3

Frequencies

GnomAD3 genomes

AF:

0.000158

AC:

AN:

152224

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00576

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000252

AC:

AN:

147066

AF XY:

0.000254

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000143

Gnomad ASJ exome

AF:

0.00519

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000485

Gnomad OTH exome

AF:

0.000519

GnomAD4 exome

AF:

0.000144

AC:

200

AN:

1388214

Hom.:

Cov.:

AF XY:

0.000156

AC XY:

107

AN XY:

685246

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31070

American (AMR)

AF:

0.0000946

AC:

AN:

31706

Ashkenazi Jewish (ASJ)

AF:

0.00610

AC:

138

AN:

22628

East Asian (EAS)

AF:

0.00

AC:

AN:

37006

South Asian (SAS)

AF:

0.0000132

AC:

AN:

75804

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48984

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5518

European-Non Finnish (NFE)

AF:

0.0000315

AC:

AN:

1078100

Other (OTH)

AF:

0.000418

AC:

AN:

57398

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.482

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000158

AC:

AN:

152224

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74370

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41462

American (AMR)

AF:

0.00

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00576

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4838

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68042

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000898

Hom.:

Bravo

AF:

0.000208

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000355

AC:

ExAC

AF:

0.000185

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.18

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.35

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.030

Eigen

Benign

0.083

Eigen_PC

Benign

0.13

FATHMM_MKL

Uncertain

0.82

LIST_S2

Benign

0.79

M_CAP

Benign

0.076

MetaRNN

Benign

0.016

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.2

PhyloP100

2.1

PrimateAI

Pathogenic

0.92

PROVEAN

Benign

-1.1

REVEL

Benign

0.11

Sift

Uncertain

0.017

Sift4G

Benign

0.32

Polyphen

0.80

Vest4

0.60

MVP

0.45

MPC

1.2

ClinPred

0.030

GERP RS

4.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.41

gMVP

0.35

Mutation Taster

=78/22

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over