Variant 18-32202920-A-G details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_005925.3(MEP1B):c.278A>G(p.Asn93Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000891 in 1,458,864 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

MEP1B
NM_005925.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.31

Variant links:

Genes affected

MEP1B (HGNC:7020): (meprin A subunit beta) Meprins are multidomain zinc metalloproteases that are highly expressed in mammalian kidney and intestinal brush border membranes, and in leukocytes and certain cancer cells. They are involved in the hydrolysis of a variety of peptide and protein substrates, and have been implicated in cancer and intestinal inflammation. Mature meprins are oligomers of evolutionarily related, but separately encoded alpha and/or beta subunits. Homooligomers of alpha subunit are secreted, whereas, oligomers containing the beta subunit are plasma membrane-bound. This gene encodes the beta subunit. Targeted disruption of this gene in mice affects embryonic viability, renal gene expression profiles, and distribution of the membrane-associated alpha subunit in kidney and intestine. [provided by RefSeq, Oct 2011]

MEP1B links:

GAREM1 (HGNC:26136): (GRB2 associated regulator of MAPK1 subtype 1) This gene encodes an adaptor protein which functions in the epidermal growth factor (EGF) receptor-mediated signaling pathway. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2011]

GAREM1 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=0.38707674).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
MEP1B	NM_005925.3 linkuse as main transcript	c.278A>G	p.Asn93Ser	missense_variant	6/15	ENST00000269202.11	NP_005916.2
MEP1B	NM_001308171.2 linkuse as main transcript	c.278A>G	p.Asn93Ser	missense_variant	6/15		NP_001295100.1
MEP1B	XM_011526013.3 linkuse as main transcript	c.278A>G	p.Asn93Ser	missense_variant	6/14		XP_011524315.1
MEP1B	XM_011526014.3 linkuse as main transcript	c.278A>G	p.Asn93Ser	missense_variant	6/13		XP_011524316.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MEP1B	ENST00000269202.11 linkuse as main transcript	c.278A>G	p.Asn93Ser	missense_variant	6/15	1	NM_005925.3	ENSP00000269202	P4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000405

AC:

AN:

246874

Hom.:

AF XY:

0.00000747

AC XY:

AN XY:

133810

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:

0.00000893

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000891

AC:

AN:

1458864

Hom.:

Cov.:

AF XY:

0.00000827

AC XY:

AN XY:

725652

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000117

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.000111

Hom.:

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 submitter

clinical testing

Ambry Genetics

May 09, 2024

The c.278A>G (p.N93S) alteration is located in exon 6 (coding exon 6) of the MEP1B gene. This alteration results from a A to G substitution at nucleotide position 278, causing the asparagine (N) at amino acid position 93 to be replaced by a serine (S). 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

0.079

BayesDel_addAF

Benign

-0.17

BayesDel_noAF

Benign

-0.48

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.15

T;T;T

Eigen

Benign

-0.011

Eigen_PC

Benign

0.20

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.75

T;D;D

M_CAP

Benign

0.023

MetaRNN

Benign

0.39

T;T;T

MetaSVM

Benign

-0.81

MutationAssessor

Benign

0.69

.;N;.

MutationTaster

Benign

0.66

D;D

PrimateAI

Benign

0.34

PROVEAN

Benign

-1.2

.;N;.

REVEL

Benign

0.095

Sift

Benign

0.34

.;T;.

Sift4G

Benign

0.60

T;T;T

Polyphen

0.26

.;B;.

Vest4

0.18, 0.17

MutPred

0.56

.;Gain of ubiquitination at K88 (P = 0.1111);Gain of ubiquitination at K88 (P = 0.1111);

MVP

0.73

MPC

0.093

ClinPred

0.47

GERP RS

5.7

Varity_R

0.27

gMVP

0.35

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.080

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