X-154031300-G-C

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP7BS2BP4

This summary comes from the ClinGen Evidence Repository: The c.528C>G (p.Pro176=) variant in MECP2 (NM_004992.3) is observed in at least 2 unaffected individuals (internal database - Invitae) (BS2). The silent p.Pro176= variant is not predicted to affect splicing using multiple computational tools and does not affect a highly conserved nucleotide (BP4, BP7). The p.Pro176= variant in MECP2 is present in gnomAD v2.1.1 at a frequency of 0.003275% (no criteria met). In summary, the p.Pro176= variant in MECP2 is classified as Likely Benign based on the ACMG/AMP criteria (BS2, BP4, BP7). LINK:https://erepo.genome.network/evrepo/ui/classification/CA232982/MONDO:0010726/016

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 0 hem., cov: 23)

Exomes 𝑓: 0.000035 ( 0 hom. 11 hem. )

Consequence

MECP2
NM_001110792.2 synonymous

Scores

Clinical Significance

Likely benign reviewed by expert panel U:1B:5O:1

Conservation

PhyloP100: 1.98

Publications

0 publications found

Variant links:

Genes affected

MECP2 (HGNC:6990): (methyl-CpG binding protein 2) DNA methylation is the major modification of eukaryotic genomes and plays an essential role in mammalian development. Human proteins MECP2, MBD1, MBD2, MBD3, and MBD4 comprise a family of nuclear proteins related by the presence in each of a methyl-CpG binding domain (MBD). Each of these proteins, with the exception of MBD3, is capable of binding specifically to methylated DNA. MECP2, MBD1 and MBD2 can also repress transcription from methylated gene promoters. In contrast to other MBD family members, MECP2 is X-linked and subject to X inactivation. MECP2 is dispensible in stem cells, but is essential for embryonic development. MECP2 gene mutations are the cause of most cases of Rett syndrome, a progressive neurologic developmental disorder and one of the most common causes of cognitive disability in females. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Oct 2015]

MECP2 Gene-Disease associations (from GenCC):

chromosome Xq28 duplication syndrome
Inheritance: XL Classification: DEFINITIVE Submitted by: G2P
Rett syndrome
Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen, G2P
severe neonatal-onset encephalopathy with microcephaly
Inheritance: XL Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, Orphanet
syndromic X-linked intellectual disability Lubs type
Inheritance: XL Classification: DEFINITIVE Submitted by: G2P
atypical Rett syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
non-syndromic X-linked intellectual disability
Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
X-linked intellectual disability-psychosis-macroorchidism syndrome
Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
systemic lupus erythematosus
Inheritance: Unknown Classification: SUPPORTIVE Submitted by: Orphanet

MECP2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

For more information check the summary or visit ClinGen Evidence Repository.

BP7

For more information check the summary or visit ClinGen Evidence Repository.

BS2

For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MECP2	NM_001110792.2 link	c.564C>G	p.Pro188Pro	synonymous_variant	Exon 3 of 3	ENST00000453960.7	NP_001104262.1	P51608-2A0A140VKC4Q59FJ6
MECP2	NM_004992.4 link	c.528C>G	p.Pro176Pro	synonymous_variant	Exon 4 of 4	ENST00000303391.11	NP_004983.1	P51608-1D3YJ43Q59FJ6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MECP2	ENST00000453960.7 link	c.564C>G	p.Pro188Pro	synonymous_variant	Exon 3 of 3	1	NM_001110792.2	ENSP00000395535.2		P51608-2
MECP2	ENST00000303391.11 link	c.528C>G	p.Pro176Pro	synonymous_variant	Exon 4 of 4	1	NM_004992.4	ENSP00000301948.6		P51608-1

Frequencies

GnomAD3 genomes

AF:

0.00000891

AC:

AN:

112176

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:

0.0000188

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000328

AC:

AN:

183200

AF XY:

0.0000296

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:

0.0000735

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000346

AC:

AN:

1098235

Hom.:

Cov.:

AF XY:

0.0000303

AC XY:

AN XY:

363589

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

26403

American (AMR)

AF:

0.00

AC:

AN:

35206

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19386

East Asian (EAS)

AF:

0.00

AC:

AN:

30206

South Asian (SAS)

AF:

0.00

AC:

AN:

54147

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40528

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4137

European-Non Finnish (NFE)

AF:

0.0000439

AC:

AN:

842127

Other (OTH)

AF:

0.0000217

AC:

AN:

46095

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.460

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:

0.00000891

AC:

AN:

112176

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34348

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

30850

American (AMR)

AF:

0.00

AC:

AN:

10668

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2651

East Asian (EAS)

AF:

0.00

AC:

AN:

3578

South Asian (SAS)

AF:

0.00

AC:

AN:

2676

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6148

Middle Eastern (MID)

AF:

0.00

AC:

AN:

239

European-Non Finnish (NFE)

AF:

0.0000188

AC:

AN:

53167

Other (OTH)

AF:

0.00

AC:

AN:

1514

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Likely benign

Submissions summary: Uncertain:1Benign:5Other:1

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

not provided

Uncertain:1Other:1

RettBASE

Significance:not provided

Review Status:no classification provided

Collection Method:literature only

- -

Dec 23, 2013

Eurofins Ntd Llc (ga)

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Rett syndrome

Benign:2

Oct 28, 2021

ClinGen Rett and Angelman-like Disorders Variant Curation Expert Panel

Significance:Likely benign

Review Status:reviewed by expert panel

Collection Method:curation

The c.528C>G (p.Pro176=) variant in MECP2 (NM_004992.3) is observed in at least 2 unaffected individuals (internal database - Invitae) (BS2). The silent p.Pro176= variant is not predicted to affect splicing using multiple computational tools and does not affect a highly conserved nucleotide (BP4, BP7). The p.Pro176= variant in MECP2 is present in gnomAD v2.1.1 at a frequency of 0.003275% (no criteria met). In summary, the p.Pro176= variant in MECP2 is classified as Likely Benign based on the ACMG/AMP criteria (BS2, BP4, BP7). -

Apr 22, 2024

Centre for Population Genomics, CPG

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:curation

This variant has been collected from RettBASE and curated to current modified ACMG/AMP criteria. Based on the classification scheme defined by the ClinGen Rett/Angelman-like Expert Panel for Rett/AS-like Disorders Specifications to the ACMG/AMP Variant Interpretation Guidelines VCEP 3.0, this variant is classified as likely benign. At least the following criteria are met: The allele frequency of this variant in at least one population in gnomAD V3, v4 is between 0.008% and 0.03%, including 11 hemizygous (BS1). -

Severe neonatal-onset encephalopathy with microcephaly

Benign:1

Feb 24, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Inborn genetic diseases

Benign:1

Sep 09, 2018

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. -

MECP2-related disorder

Benign:1

Jan 11, 2023

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.54

CADD

Benign

(source)

DANN

Benign

0.76

PhyloP100

2.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=90/10

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over