Variant 10-86942838-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_024756.3(MMRN2):c.1946A>G(p.Gln649Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000355 in 1,378,500 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: 𝑓 0.000059 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000033 ( 0 hom. )

Consequence

MMRN2
NM_024756.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0550

Variant links:

Genes affected

MMRN2 (HGNC:19888): (multimerin 2) This gene encodes a protein belonging to the member of elastin microfibril interface-located (EMILIN) protein family. This family member is an extracellular matrix glycoprotein that can interfere with tumor angiogenesis and growth. It serves as a transforming growth factor beta antagonist and can interfere with the VEGF-A/VEGFR2 pathway. A related pseudogene has been identified on chromosome 6. [provided by RefSeq, Aug 2012]

MMRN2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.006929934).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MMRN2	NM_024756.3 linkuse as main transcript	c.1946A>G	p.Gln649Arg	missense_variant	6/7	ENST00000372027.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MMRN2	ENST00000372027.10 linkuse as main transcript	c.1946A>G	p.Gln649Arg	missense_variant	6/7	1	NM_024756.3	P1

Frequencies

GnomAD3 genomes

AF:

0.0000593

AC:

AN:

151652

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00135

Gnomad SAS

AF:

0.000413

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000669

AC:

AN:

59766

Hom.:

AF XY:

0.0000565

AC XY:

AN XY:

35414

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000396

Gnomad EAS exome

AF:

0.000662

Gnomad SAS exome

AF:

0.000142

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000326

AC:

AN:

1226740

Hom.:

Cov.:

AF XY:

0.0000418

AC XY:

AN XY:

597470

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000297

Gnomad4 SAS exome

AF:

0.000367

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000400

Gnomad4 OTH exome

AF:

0.000161

GnomAD4 genome

AF:

0.0000593

AC:

AN:

151760

Hom.:

Cov.:

AF XY:

0.0000809

AC XY:

AN XY:

74204

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00135

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000378

ExAC

AF:

0.000105

AC:

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

Nov 17, 2023

The c.1946A>G (p.Q649R) alteration is located in exon 6 (coding exon 6) of the MMRN2 gene. This alteration results from a A to G substitution at nucleotide position 1946, causing the glutamine (Q) at amino acid position 649 to be replaced by an arginine (R). 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

0.064

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.76

CADD

Benign

DANN

Benign

0.82

DEOGEN2

Benign

0.012

Eigen

Benign

-0.58

Eigen_PC

Benign

-0.51

FATHMM_MKL

Benign

0.11

LIST_S2

Benign

0.43

M_CAP

Benign

0.023

MetaRNN

Benign

0.0069

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.4

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.76

PROVEAN

Benign

-0.86

REVEL

Benign

0.025

Sift

Benign

0.21

Sift4G

Benign

0.39

Polyphen

0.0020

Vest4

0.054

MutPred

0.20

Gain of MoRF binding (P = 0.058);

MVP

0.28

MPC

1.2

ClinPred

0.0086

GERP RS

1.7

Varity_R

0.056

gMVP

0.16

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

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