18-32208143-C-T

Variant names:

• chr18-32208143-C-T
• rs1392024190
• NM_005925.3:c.791C>T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_005925.3(MEP1B):​c.791C>T​(p.Ser264Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,613,600 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 (★). Synonymous variant affecting the same amino acid position (i.e. S264S) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.000020 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000010 (0 hom.)
• Consequence: MEP1B NM_005925.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.53
• Publications: 0 publications found

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]

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]

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.28217188).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005925.3. 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
	MEP1B	NM_005925.3	MANE Select	c.791C>T	p.Ser264Leu	missense	Exon 9 of 15	NP_005916.2	Q16820
	MEP1B	NM_001308171.2		c.791C>T	p.Ser264Leu	missense	Exon 9 of 15	NP_001295100.1	J3QKX5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MEP1B	ENST00000269202.11	TSL:1 MANE Select	c.791C>T	p.Ser264Leu	missense	Exon 9 of 15	ENSP00000269202.6	Q16820
	MEP1B	ENST00000581447.1	TSL:1	c.791C>T	p.Ser264Leu	missense	Exon 9 of 15	ENSP00000463280.1	J3QKX5
	GAREM1	ENST00000583696.1	TSL:3	c.64-71683G>A		intron	N/A	ENSP00000464185.1	J3QRF3

Frequencies

GnomAD3 genomes AF: 0.0000197 AC: 3 AN: 152114 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

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: 0.0000294

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.0000103 AC: 15 AN: 1461486 Hom.: 0 Cov.: 30 AF XY: 0.00000963 AC XY: 7 AN XY: 727008

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44710

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26124

East Asian (EAS) AF: 0.00 AC: 0 AN: 39696

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86218

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53398

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.0000126 AC: 14 AN: 1111734

Other (OTH) AF: 0.00 AC: 0 AN: 60360

GnomAD4 genome AF: 0.0000197 AC: 3 AN: 152114 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74286

African (AFR) AF: 0.0000241 AC: 1 AN: 41430

American (AMR) AF: 0.00 AC: 0 AN: 15274

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5184

South Asian (SAS) AF: 0.00 AC: 0 AN: 4824

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10588

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000294 AC: 2 AN: 68026

Other (OTH) AF: 0.00 AC: 0 AN: 2088

Alfa AF: 0.0000712 Hom.: 0

Bravo AF: 0.0000302

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Benign	-0.23	T
BayesDel_noAF	Benign	-0.57
CADD	Uncertain	23
DANN	Uncertain	0.98
DEOGEN2	Uncertain	0.44	T
Eigen	Benign	0.031
Eigen_PC	Benign	0.11
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.86	D
M_CAP	Benign	0.014	T
MetaRNN	Benign	0.28	T
MetaSVM	Benign	-0.97	T
MutationAssessor	Uncertain	2.7	M
PhyloP100		2.5
PrimateAI	Benign	0.40	T
PROVEAN	Uncertain	-3.8	D
REVEL	Benign	0.13
Sift	Benign	0.46	T
Sift4G	Benign	0.098	T
Polyphen		0.46	P
Vest4		0.14
MutPred		0.44		Loss of disorder (P = 0.0087)
MVP		0.57
MPC		0.12
ClinPred		0.98	D
GERP RS		4.6
Varity_R		0.64
gMVP		0.53
Mutation Taster		=42/58	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs1392024190; hg19: chr18-29788106;