rs61750257

Positions:

chrX-154030969-C-G

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP2BP5BS2

This summary comes from the ClinGen Evidence Repository: The p.Ala287Pro variant in MECP2 (NM_004992.3) is observed in at least 2 unaffected individuals (internal database - GeneDx, internal database - Baylor) (BS2). The p.Ala287Pro variant is observed in the MECP2 gene where a second pathogenic variant in the same gene is present in the patient (internal database - GeneDx) (BP2). The p.Ala287Pro variant is found in a patient with an alternate molecular basis of disease (internal database - Baylor) (BP5). The p.Ala287Pro variant in MECP2 is present in gnomAD v2.1.1 at a frequency of 0.001638% (no criteria met). In summary, the p.Ala287Pro variant in MECP2 is classified as Likely Benign based on the ACMG/AMP criteria (BS2, BP2, BP5). LINK:https://erepo.genome.network/evrepo/ui/classification/CA270538/MONDO:0010726/016

Frequency

Genomes: not found (cov: 23)

Exomes 𝑓: 0.000010 ( 0 hom. 4 hem. )

Consequence

MECP2
NM_001110792.2 missense

Scores

Clinical Significance

Likely benign reviewed by expert panel U:1B:4

Conservation

PhyloP100: 3.39

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP2

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

BP5

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/exons	MANE	Protein	UniProt
MECP2	NM_001110792.2 linkuse as main transcript	c.895G>C	p.Ala299Pro	missense_variant	3/3	ENST00000453960.7	NP_001104262.1	P51608-2A0A140VKC4Q59FJ6
MECP2	NM_004992.4 linkuse as main transcript	c.859G>C	p.Ala287Pro	missense_variant	4/4	ENST00000303391.11	NP_004983.1	P51608-1D3YJ43Q59FJ6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MECP2	ENST00000453960.7 linkuse as main transcript	c.895G>C	p.Ala299Pro	missense_variant	3/3	1	NM_001110792.2	ENSP00000395535.2		P51608-2
MECP2	ENST00000303391.11 linkuse as main transcript	c.859G>C	p.Ala287Pro	missense_variant	4/4	1	NM_004992.4	ENSP00000301948.6		P51608-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000164

AC:

AN:

183189

Hom.:

AF XY:

0.0000295

AC XY:

AN XY:

67715

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:

0.0000367

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000100

AC:

AN:

1098220

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

363582

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:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000119

Gnomad4 OTH exome

AF:

0.0000217

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000149

AC:

ExAC

AF:

0.0000412

AC:

ClinVar

Significance: Likely benign

Submissions summary: Uncertain:1Benign:4

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

Rett syndrome

Uncertain:1Benign:2

Likely benign, criteria provided, single submitter	curation	Centre for Population Genomics, CPG	Mar 26, 2024	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 variant is observed in at least 2 individuals with no features of Rett Syndrome (BS2). ClinVar Variation ID: 143716, present in 11 individuals in gnomAD v4 including 4 hemizygous (max AF < 0.008%) -
Likely benign, reviewed by expert panel	curation	ClinGen Rett and Angelman-like Disorders Variant Curation Expert Panel	Oct 28, 2021	The p.Ala287Pro variant in MECP2 (NM_004992.3) is observed in at least 2 unaffected individuals (internal database - GeneDx, internal database - Baylor) (BS2). The p.Ala287Pro variant is observed in the MECP2 gene where a second pathogenic variant in the same gene is present in the patient (internal database - GeneDx) (BP2). The p.Ala287Pro variant is found in a patient with an alternate molecular basis of disease (internal database - Baylor) (BP5). The p.Ala287Pro variant in MECP2 is present in gnomAD v2.1.1 at a frequency of 0.001638% (no criteria met). In summary, the p.Ala287Pro variant in MECP2 is classified as Likely Benign based on the ACMG/AMP criteria (BS2, BP2, BP5). -
Uncertain significance, no assertion criteria provided	curation	RettBASE	Apr 10, 2002	- -

Severe neonatal-onset encephalopathy with microcephaly

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 30, 2023

- -

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Mar 03, 2016

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.30

BayesDel_addAF

Pathogenic

0.44

BayesDel_noAF

Pathogenic

0.51

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.46

T;.;T

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.93

D;D;D

M_CAP

Pathogenic

0.93

MetaRNN

Pathogenic

0.76

D;D;D

MetaSVM

Uncertain

0.39

MutationAssessor

Benign

2.0

M;.;.

PrimateAI

Uncertain

0.59

PROVEAN

Benign

-0.21

N;N;.

REVEL

Uncertain

0.55

Sift

Uncertain

0.0020

D;D;.

Sift4G

Benign

0.28

T;T;T

Polyphen

1.0

D;P;.

Vest4

0.69

MVP

1.0

ClinPred

0.52

GERP RS

4.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.44

gMVP

0.87

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

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