Genetic Variant MARCHF2:p.Ala180Val (chr19-8430824-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001005415.2(MARCHF2):c.539C>T(p.Ala180Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000969 in 1,610,476 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 (★).

Frequency

Genomes: 𝑓 0.00040 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000065 ( 0 hom. )

Consequence

MARCHF2
NM_001005415.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.64

Variant links:

Genes affected

MARCHF2 (HGNC:28038): (membrane associated ring-CH-type finger 2) MARCH2 is a member of the MARCH family of membrane-bound E3 ubiquitin ligases (EC 6.3.2.19). MARCH enzymes add ubiquitin (see MIM 191339) to target lysines in substrate proteins, thereby signaling their vesicular transport between membrane compartments. MARCH2 reduces surface accumulation of several glycoproteins and appears to regulate early endosome-to-trans-Golgi network (TGN) trafficking (Bartee et al., 2004 [PubMed 14722266]; Nakamura et al., 2005 [PubMed 15689499]).[supplied by OMIM, Mar 2010]

MARCHF2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.14273274).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MARCHF2	NM_001005415.2 link	c.539C>T	p.Ala180Val	missense_variant	Exon 4 of 5	ENST00000215555.7	NP_001005415.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MARCHF2	ENST00000215555.7 link	c.539C>T	p.Ala180Val	missense_variant	Exon 4 of 5	5	NM_001005415.2	ENSP00000215555.2		Q9P0N8-1

Frequencies

GnomAD3 genomes

AF:

0.000401

AC:

AN:

152240

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00123

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000393

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:

0.0000441

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000101

AC:

AN:

247158

Hom.:

AF XY:

0.000104

AC XY:

AN XY:

133994

show subpopulations

Gnomad AFR exome

AF:

0.000992

Gnomad AMR exome

AF:

0.000116

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:

0.0000356

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000652

AC:

AN:

1458118

Hom.:

Cov.:

AF XY:

0.0000662

AC XY:

AN XY:

725454

show subpopulations

Gnomad4 AFR exome

AF:

0.00170

Gnomad4 AMR exome

AF:

0.000134

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:

0.0000162

Gnomad4 OTH exome

AF:

0.000232

GnomAD4 genome

AF:

0.000400

AC:

AN:

152358

Hom.:

Cov.:

AF XY:

0.000443

AC XY:

AN XY:

74496

show subpopulations

Gnomad4 AFR

AF:

0.00123

Gnomad4 AMR

AF:

0.000392

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000199

Hom.:

Bravo

AF:

0.000385

ESP6500AA

AF:

0.00159

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000124

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 11, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.539C>T (p.A180V) alteration is located in exon 5 (coding exon 3) of the MARCH2 gene. This alteration results from a C to T substitution at nucleotide position 539, causing the alanine (A) at amino acid position 180 to be replaced by a valine (V). 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

0.20

BayesDel_addAF

Benign

-0.39

BayesDel_noAF

Benign

-0.37

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.0022

T;T

Eigen

Benign

0.15

Eigen_PC

Uncertain

0.22

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.93

D;.

M_CAP

Benign

0.015

MetaRNN

Benign

0.14

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.2

M;M

PrimateAI

Uncertain

0.70

PROVEAN

Benign

-0.33

N;.

REVEL

Benign

0.15

Sift

Benign

0.38

T;.

Sift4G

Benign

0.076

T;T

Polyphen

0.67

P;P

Vest4

0.76

MVP

0.48

MPC

0.65

ClinPred

0.022

GERP RS

4.5

Varity_R

0.051

gMVP

0.85

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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