Variant 4-89895117-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The ENST00000264790.7(MMRN1):c.146T>C(p.Ile49Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,656 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

MMRN1
ENST00000264790.7 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.95

Variant links:

Genes affected

MMRN1 (HGNC:7178): (multimerin 1) Multimerin is a massive, soluble protein found in platelets and in the endothelium of blood vessels. It is comprised of subunits linked by interchain disulfide bonds to form large, variably sized homomultimers. Multimerin is a factor V/Va-binding protein and may function as a carrier protein for platelet factor V. It may also have functions as an extracellular matrix or adhesive protein. Recently, patients with an unusual autosomal-dominant bleeding disorder (factor V Quebec) were found to have a deficiency of platelet multimerin. [provided by RefSeq, Jul 2008]

MMRN1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.03707704).

BP6

Variant 4-89895117-T-C is Benign according to our data. Variant chr4-89895117-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 2529513.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
MMRN1	NM_007351.3 linkuse as main transcript	c.146T>C	p.Ile49Thr	missense_variant	1/8	ENST00000264790.7	NP_031377.2
MMRN1	NM_001371403.1 linkuse as main transcript	c.146T>C	p.Ile49Thr	missense_variant	2/9		NP_001358332.1
MMRN1	XM_047449831.1 linkuse as main transcript	c.146T>C	p.Ile49Thr	missense_variant	2/8		XP_047305787.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MMRN1	ENST00000264790.7 linkuse as main transcript	c.146T>C	p.Ile49Thr	missense_variant	1/8	1	NM_007351.3	ENSP00000264790	P1	Q13201-1
MMRN1	ENST00000394980.5 linkuse as main transcript	c.146T>C	p.Ile49Thr	missense_variant	2/9	5		ENSP00000378431	P1	Q13201-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000399

AC:

AN:

250438

Hom.:

AF XY:

0.00000739

AC XY:

AN XY:

135336

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000290

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461656

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727140

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 24, 2023

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.088

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.63

CADD

Benign

0.030

DANN

Benign

0.54

DEOGEN2

Benign

0.023

T;T

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.7

FATHMM_MKL

Benign

0.0075

LIST_S2

Benign

0.31

.;T

M_CAP

Benign

0.029

MetaRNN

Benign

0.037

T;T

MetaSVM

Benign

-0.91

MutationAssessor

Benign

-0.34

N;N

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.29

PROVEAN

Benign

-0.26

N;N

REVEL

Benign

0.052

Sift

Benign

0.27

T;T

Sift4G

Benign

0.14

T;T

Polyphen

0.0

B;B

Vest4

0.050

MutPred

0.22

Gain of glycosylation at I49 (P = 0.0216);Gain of glycosylation at I49 (P = 0.0216);

MVP

0.21

MPC

0.012

ClinPred

0.043

GERP RS

-8.3

Varity_R

0.017

gMVP

0.091

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