chr15-89776664-G-A

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_001039958.2(MESP2):c.307G>A(p.Glu103Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000228 in 1,538,300 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 (★). Synonymous variant affecting the same amino acid position (i.e. E103E) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

MESP2
NM_001039958.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.370

Publications

6 publications found

Variant links:

Genes affected

MESP2 (HGNC:29659): (mesoderm posterior bHLH transcription factor 2) This gene encodes a member of the bHLH family of transcription factors and plays a key role in defining the rostrocaudal patterning of somites via interactions with multiple Notch signaling pathways. This gene is expressed in the anterior presomitic mesoderm and is downregulated immediately after the formation of segmented somites. This gene also plays a role in the formation of epithelial somitic mesoderm and cardiac mesoderm. Mutations in the MESP2 gene cause autosomal recessive spondylocostal dystosis 2 (SCD02). [provided by RefSeq, Oct 2008]

MESP2 Gene-Disease associations (from GenCC):

spondylocostal dysostosis 2, autosomal recessive
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
autosomal recessive spondylocostal dysostosis
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

MESP2 links:

LOC124903550 (HGNC:):

LOC124903550 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.4147615).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001039958.2. 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
	MESP2	NM_001039958.2	MANE Select	c.307G>A	p.Glu103Lys	missense	Exon 1 of 2	NP_001035047.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
MESP2	ENST00000341735.5	TSL:1 MANE Select	c.307G>A	p.Glu103Lys	missense	Exon 1 of 2	ENSP00000342392.3
MESP2	ENST00000560219.2	TSL:1	c.31-1401G>A		intron	N/A	ENSP00000452998.1
MESP2	ENST00000558723.1	TSL:3	n.39-1401G>A		intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152256

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.000103

AC:

AN:

146096

AF XY:

0.0000972

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000124

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000403

Gnomad FIN exome

AF:

0.000263

Gnomad NFE exome

AF:

0.0000780

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000238

AC:

AN:

1386044

Hom.:

Cov.:

AF XY:

0.0000292

AC XY:

AN XY:

686040

show subpopulations

African (AFR)

AF:

0.0000352

AC:

AN:

28436

American (AMR)

AF:

0.000113

AC:

AN:

35482

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

23736

East Asian (EAS)

AF:

0.000118

AC:

AN:

34038

South Asian (SAS)

AF:

0.00

AC:

AN:

77550

European-Finnish (FIN)

AF:

0.000189

AC:

AN:

42314

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5592

European-Non Finnish (NFE)

AF:

0.0000148

AC:

AN:

1081388

Other (OTH)

AF:

0.00

AC:

AN:

57508

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.478

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152256

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74386

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41470

American (AMR)

AF:

0.00

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4838

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10632

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68042

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

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:

0.0000540

Hom.:

Bravo

AF:

0.0000416

ExAC

AF:

0.0000758

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Aug 31, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 103 of the MESP2 protein (p.Glu103Lys). This variant is present in population databases (rs71647808, gnomAD 0.04%). This variant has not been reported in the literature in individuals affected with MESP2-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.77

BayesDel_addAF

Benign

-0.17

BayesDel_noAF

Benign

-0.17

CADD

Benign

(source)

DANN

Benign

0.92

DEOGEN2

Uncertain

0.59

Eigen

Benign

-0.66

Eigen_PC

Benign

-0.72

FATHMM_MKL

Benign

0.24

LIST_S2

Uncertain

0.90

M_CAP

Pathogenic

0.93

MetaRNN

Benign

0.41

MetaSVM

Uncertain

0.27

MutationAssessor

Benign

0.38

PhyloP100

-0.37

PrimateAI

Pathogenic

0.92

PROVEAN

Benign

-1.6

REVEL

Uncertain

0.34

Sift

Benign

0.22

Sift4G

Benign

0.22

Polyphen

0.86

Vest4

0.26

MVP

0.87

MPC

0.89

ClinPred

0.034

GERP RS

1.6

PromoterAI

-0.0094

Neutral

(source)

Varity_R

0.16

gMVP

0.37

Mutation Taster

=91/9

polymorphism

(source)

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

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

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over