rs267608465

Positions:

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP5BS2BA1

This summary comes from the ClinGen Evidence Repository: The c.378-3C>T variant in MECP2 (NM_004992.3) has an allele frequency of 0.038% in "Other" sub population in gnomAD, which is high enough to be classified as benign based on thresholds defined by the ClinGen Rett/Angelman-like Expert Panel for Rett/AS-like conditions (BA1). The c.378-3C>T variant is observed in at least 2 unaffected individuals (Invitae internal database) (BS2). The c.378-3C>T variant is found in a patient with an alternate molecular basis of disease (Invitae internal database) (BP5). In summary, the c.378-3C>T variant in MECP2 is classified as benign for Rett Syndrome based on the ACMG/AMP criteria (BA1, BS2, BP5). LINK:https://erepo.genome.network/evrepo/ui/classification/CA10558616/MONDO:0010726/016

Frequency

Genomes: 𝑓 0.000027 ( 0 hom., 0 hem., cov: 23)

Exomes 𝑓: 0.000013 ( 1 hom. 7 hem. )

Consequence

MECP2
NM_001110792.2 splice_region, intron

Scores

Splicing: ADA: 0.005163

Clinical Significance

Benign reviewed by expert panel P:1B:3

Conservation

PhyloP100: 4.72

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 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP5

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

BS2

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

BA1

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MECP2	NM_001110792.2 link	c.414-3C>T		splice_region_variant, intron_variant		ENST00000453960.7	NP_001104262.1	P51608-2A0A140VKC4Q59FJ6
MECP2	NM_004992.4 link	c.378-3C>T		splice_region_variant, intron_variant		ENST00000303391.11	NP_004983.1	P51608-1D3YJ43Q59FJ6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MECP2	ENST00000453960.7 link	c.414-3C>T		splice_region_variant, intron_variant		1	NM_001110792.2	ENSP00000395535.2		P51608-2
MECP2	ENST00000303391.11 link	c.378-3C>T		splice_region_variant, intron_variant		1	NM_004992.4	ENSP00000301948.6		P51608-1

Frequencies

GnomAD3 genomes

AF:

0.0000268

AC:

AN:

112115

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34267

show subpopulations

Gnomad AFR

AF:

0.0000324

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:

0.000664

GnomAD3 exomes

AF:

0.0000165

AC:

AN:

181290

Hom.:

AF XY:

0.00

AC XY:

AN XY:

67162

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000125

Gnomad OTH exome

AF:

0.000445

GnomAD4 exome

AF:

0.0000128

AC:

AN:

1097640

Hom.:

Cov.:

AF XY:

0.0000193

AC XY:

AN XY:

363018

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000739

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000238

Gnomad4 OTH exome

AF:

0.0000217

GnomAD4 genome

AF:

0.0000268

AC:

AN:

112115

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

34267

show subpopulations

Gnomad4 AFR

AF:

0.0000324

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000188

Gnomad4 OTH

AF:

0.000664

Alfa

AF:

0.000124

Hom.:

Bravo

AF:

0.0000113

ClinVar

Significance: Benign

Submissions summary: Pathogenic:1Benign:3

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Severe neonatal-onset encephalopathy with microcephaly

Pathogenic:1Benign:1

Pathogenic, no assertion criteria provided	clinical testing	Service de Génétique Moléculaire, Hôpital Robert Debré	-	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Dec 19, 2023	- -

Rett syndrome

Benign:2

Benign, reviewed by expert panel	curation	ClinGen Rett and Angelman-like Disorders Variant Curation Expert Panel	Feb 18, 2022	The c.378-3C>T variant in MECP2 (NM_004992.3) has an allele frequency of 0.038% in "Other" sub population in gnomAD, which is high enough to be classified as benign based on thresholds defined by the ClinGen Rett/Angelman-like Expert Panel for Rett/AS-like conditions (BA1). The c.378-3C>T variant is observed in at least 2 unaffected individuals (Invitae internal database) (BS2). The c.378-3C>T variant is found in a patient with an alternate molecular basis of disease (Invitae internal database) (BP5). In summary, the c.378-3C>T variant in MECP2 is classified as benign for Rett Syndrome based on the ACMG/AMP criteria (BA1, BS2, BP5). -
Benign, criteria provided, single submitter	clinical testing	Genomic Research Center, Shahid Beheshti University of Medical Sciences	Apr 27, 2021	- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.49

CADD

Benign

DANN

Benign

0.76

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.0052

dbscSNV1_RF

Benign

0.052

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