rs879255651

Variant names:

• chr3-155116548-G-A
• rs879255651
• NM_007289.4:c.428G>A

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM2 PP3_Strong PP5

The NM_007289.4(MME):​c.428G>A​(p.Cys143Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.00000206 in 1,457,360 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: MME NM_007289.4 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 5.78
• Publications: 9 publications found

Genes affected

MME (HGNC:7154): (membrane metalloendopeptidase) The protein encoded by this gene is a type II transmembrane glycoprotein and a common acute lymphocytic leukemia antigen that is an important cell surface marker in the diagnosis of human acute lymphocytic leukemia (ALL). The encoded protein is present on leukemic cells of pre-B phenotype, which represent 85% of cases of ALL. This protein is not restricted to leukemic cells, however, and is found on a variety of normal tissues. The protein is a neutral endopeptidase that cleaves peptides at the amino side of hydrophobic residues and inactivates several peptide hormones including glucagon, enkephalins, substance P, neurotensin, oxytocin, and bradykinin. [provided by RefSeq, Aug 2017]

MME Gene-Disease associations (from GenCC):

• Charcot-Marie-Tooth disease axonal type 2T

  Inheritance: SD, AR, AD Classification: DEFINITIVE, STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), ClinGen
• MME-related autosomal dominant Charcot Marie Tooth disease type 2

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• spinocerebellar ataxia 43

  Inheritance: AD Classification: SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Orphanet
• Charcot-Marie-Tooth disease type 2T

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• congenital membranous nephropathy due to maternal anti-neutral endopeptidase alloimmunization

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.972
• PP5: Variant 3-155116548-G-A is Pathogenic according to our data. Variant chr3-155116548-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 253194.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_007289.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MME	NM_007289.4	MANE Select	c.428G>A	p.Cys143Tyr	missense	Exon 5 of 23	NP_009220.2
	MME	NM_000902.5		c.428G>A	p.Cys143Tyr	missense	Exon 5 of 23	NP_000893.2
	MME	NM_001354642.2		c.428G>A	p.Cys143Tyr	missense	Exon 5 of 23	NP_001341571.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MME	ENST00000360490.7	TSL:1 MANE Select	c.428G>A	p.Cys143Tyr	missense	Exon 5 of 23	ENSP00000353679.2
	MME	ENST00000615825.2	TSL:1	c.428G>A	p.Cys143Tyr	missense	Exon 5 of 24	ENSP00000478173.2
	MME	ENST00000460393.6	TSL:1	c.428G>A	p.Cys143Tyr	missense	Exon 5 of 23	ENSP00000418525.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000206 AC: 3 AN: 1457360 Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1 AN XY: 725236

African (AFR) AF: 0.00 AC: 0 AN: 33370

American (AMR) AF: 0.00 AC: 0 AN: 44672

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26078

East Asian (EAS) AF: 0.00 AC: 0 AN: 39576

South Asian (SAS) AF: 0.00 AC: 0 AN: 86136

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53388

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5706

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1108224

Other (OTH) AF: 0.0000166 AC: 1 AN: 60210

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

ClinVar

ClinVar submissions as Germline

Significance: Pathogenic

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
1	-	-	Spinocerebellar ataxia 43 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.45	D
BayesDel_noAF	Pathogenic	0.41
CADD	Pathogenic	29
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.87	D
Eigen	Pathogenic	0.93
Eigen_PC	Pathogenic	0.89
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Pathogenic	0.97	D
M_CAP	Uncertain	0.15	D
MetaRNN	Pathogenic	0.97	D
MetaSVM	Pathogenic	0.81	D
MutationAssessor	Pathogenic	3.4	M
PhyloP100		5.8
PrimateAI	Uncertain	0.66	T
PROVEAN	Pathogenic	-10	D
REVEL	Uncertain	0.64
Sift	Uncertain	0.0010	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.97
MutPred		0.83		Gain of disorder (P = 0.0604)
MVP		0.99
MPC		0.50
ClinPred		1.0	D
GERP RS		6.2
Varity_R		0.99
gMVP		0.94
Mutation Taster		=0/100	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs879255651; hg19: chr3-154834337;