19-19145758-C-G

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_005919.4(BORCS8-MEF2B):c.1034G>C(p.Gly345Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000218 in 1,556,504 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G345S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000023 ( 1 hom. )

Consequence

BORCS8-MEF2B
NM_005919.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0940

Publications

0 publications found

Variant links:

Genes affected

BORCS8-MEF2B (HGNC:39979): (BORCS8-MEF2B readthrough) This gene represents numerous read-through transcripts that span GeneID:729991 and 100271849. Many read-through transcripts are predicted to be nonsense-mediated decay (NMD) candidates, and are thought to be non-coding. Some transcripts are predicted to be capable of translation reinitiation at a downstream AUG, resulting in expression of at least one isoform of myocyte enhancer factor 2B (MEF2B) from this read-through locus. At least one additional MEF2B variant and isoform can be expressed from a downstream promoter, and is annotated on GeneID:100271849. [provided by RefSeq, Oct 2010]

BORCS8-MEF2B links:

MEF2B (HGNC:6995): (myocyte enhancer factor 2B) The product of this gene is a member of the MADS/MEF2 family of DNA binding proteins. The protein is thought to regulate gene expression, including expression of the smooth muscle myosin heavy chain gene. This region undergoes considerable alternative splicing, with transcripts supporting two non-overlapping loci (GeneID 729991 and 100271849) as well as numerous read-through transcripts that span both loci (annotated as GeneID 4207). Several isoforms of this protein are expressed from either this locus or from some of the read-through transcripts annotated on GeneID 4207. [provided by RefSeq, Jan 2014]

MEF2B links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.105107486).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005919.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
MEF2B	NM_001145785.2	MANE Select	c.*39G>C		3_prime_UTR	Exon 9 of 9	NP_001139257.1	Q02080-2
MEF2B	NM_001367282.1		c.1034G>C	p.Gly345Ala	missense	Exon 8 of 8	NP_001354211.1	Q02080-1
BORCS8-MEF2B	NM_005919.4		c.1034G>C	p.Gly345Ala	missense	Exon 10 of 10	NP_005910.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
BORCS8-MEF2B	ENST00000514819.7	TSL:5	c.1085G>C	p.Gly362Ala	missense	Exon 9 of 9	ENSP00000454967.3	H3BNR1
MEF2B	ENST00000424583.7	TSL:5 MANE Select	c.*39G>C		3_prime_UTR	Exon 9 of 9	ENSP00000402154.2	Q02080-2
MEF2B	ENST00000444486.7	TSL:2	c.1034G>C	p.Gly345Ala	missense	Exon 10 of 10	ENSP00000390762.2	Q02080-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152188

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000661

AC:

AN:

151186

AF XY:

0.0000123

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000181

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000235

AC:

AN:

1404316

Hom.:

Cov.:

AF XY:

0.0000260

AC XY:

AN XY:

693084

show subpopulations

African (AFR)

AF:

0.000465

AC:

AN:

32264

American (AMR)

AF:

0.00

AC:

AN:

35868

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25176

East Asian (EAS)

AF:

0.00

AC:

AN:

36862

South Asian (SAS)

AF:

0.00

AC:

AN:

79680

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48140

Middle Eastern (MID)

AF:

0.000352

AC:

AN:

5680

European-Non Finnish (NFE)

AF:

0.00000647

AC:

AN:

1082404

Other (OTH)

AF:

0.000155

AC:

AN:

58242

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.469

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152188

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74342

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41462

American (AMR)

AF:

0.00

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5162

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68020

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.675

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.080

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.22

CADD

Benign

4.4

(source)

DANN

Benign

0.90

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.090

LIST_S2

Benign

0.31

M_CAP

Uncertain

0.17

MetaRNN

Benign

0.11

MetaSVM

Benign

-0.41

PhyloP100

0.094

PROVEAN

Benign

-0.35

REVEL

Uncertain

0.30

Sift

Pathogenic

0.0

Sift4G

Benign

0.34

Vest4

0.15

MutPred

0.059

Gain of helix (P = 0.027)

MVP

0.20

MPC

0.40

ClinPred

0.090

GERP RS

1.3

gMVP

0.018

Mutation Taster

=98/2

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over