rs782171742

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

This summary comes from the ClinGen Evidence Repository: The p.Pro362Ser variant in MECP2 (NM_004992.3) is present in 1 XX and 1 XY individual in gnomAD (0.0011%) (not sufficient to meet BS1 criteria). The p.Pro362Ser variant in MECP2 is observed in at least 3 unaffected individuals (internal database - Invitae) (BS2). In the absence of conflicting evidence, this is sufficient evidence to classify as likely benign based on the specifications defined by the ClinGen Rett and Angelman-like Disorders Variant Curation Expert Panel. In summary, the p.Pro362Ser variant in MECP2 is classified as Likely Benign based on the ACMG/AMP criteria (BS2). LINK:https://erepo.genome.network/evrepo/ui/classification/CA415168068/MONDO:0010726/036

Frequency

Genomes: not found (cov: 22)
Exomes 𝑓: 0.000017 ( 0 hom. 7 hem. )

Consequence

MECP2
NM_001110792.2 missense

Scores

1
9
7

Clinical Significance

Likely benign reviewed by expert panel U:1B:3

Conservation

PhyloP100: 4.86

Publications

3 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BS2
For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MECP2NM_001110792.2 linkc.1120C>T p.Pro374Ser missense_variant Exon 3 of 3 ENST00000453960.7 NP_001104262.1
MECP2NM_004992.4 linkc.1084C>T p.Pro362Ser missense_variant Exon 4 of 4 ENST00000303391.11 NP_004983.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MECP2ENST00000453960.7 linkc.1120C>T p.Pro374Ser missense_variant Exon 3 of 3 1 NM_001110792.2 ENSP00000395535.2
MECP2ENST00000303391.11 linkc.1084C>T p.Pro362Ser missense_variant Exon 4 of 4 1 NM_004992.4 ENSP00000301948.6

Frequencies

GnomAD3 genomes
Cov.:
22
GnomAD2 exomes
AF:
0.0000111
AC:
2
AN:
180544
AF XY:
0.0000151
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:
0.0000249
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000173
AC:
19
AN:
1097399
Hom.:
0
Cov.:
35
AF XY:
0.0000193
AC XY:
7
AN XY:
362895
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26359
American (AMR)
AF:
0.00
AC:
0
AN:
35147
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19346
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
54111
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40428
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4095
European-Non Finnish (NFE)
AF:
0.0000226
AC:
19
AN:
841684
Other (OTH)
AF:
0.00
AC:
0
AN:
46037
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
2
4
6
8
10
<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
Cov.:
22
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

Significance: Likely benign
Submissions summary: Uncertain:1Benign:3
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

not provided Uncertain:1
Apr 27, 2017
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

A variant of uncertain significance has been identified in the MECP2 gene. The P362S variant has not been published as a pathogenic variant, nor has it been reported as a benign variant to our knowledge. The P362S variant is not observed in large population cohorts (Lek et al., 2016; 1000 Genomes Consortium et al., 2015; Exome Variant Server). The P362S variant is a non-conservative amino acid substitution, which is likely to impact secondary protein structure as these residues differ in polarity, charge, size and/or other properties. However, this substitution occurs at a position that is not conserved. In silico analysis is inconsistent in its predictions as to whether or not the variant is damaging to the protein structure/function. Therefore, based on the currently available information, it is unclear whether this variant is a pathogenic variant or a rare benign variant. -

Severe neonatal-onset encephalopathy with microcephaly Benign:1
Jan 19, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Rett syndrome Benign:1
Oct 13, 2023
ClinGen Rett and Angelman-like Disorders Variant Curation Expert Panel
Significance:Likely benign
Review Status:reviewed by expert panel
Collection Method:curation

The p.Pro362Ser variant in MECP2 (NM_004992.3) is present in 1 XX and 1 XY individual in gnomAD (0.0011%) (not sufficient to meet BS1 criteria). The p.Pro362Ser variant in MECP2 is observed in at least 3 unaffected individuals (internal database - Invitae) (BS2). In the absence of conflicting evidence, this is sufficient evidence to classify as likely benign based on the specifications defined by the ClinGen Rett and Angelman-like Disorders Variant Curation Expert Panel. In summary, the p.Pro362Ser variant in MECP2 is classified as Likely Benign based on the ACMG/AMP criteria (BS2). -

Intellectual disability Benign:1
Apr 20, 2020
Diagnostic Laboratory, Strasbourg University Hospital
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.074
BayesDel_addAF
Uncertain
0.075
D
BayesDel_noAF
Uncertain
-0.080
CADD
Benign
19
DANN
Uncertain
0.98
DEOGEN2
Benign
0.23
T;.
FATHMM_MKL
Uncertain
0.86
D
LIST_S2
Uncertain
0.89
D;D
M_CAP
Pathogenic
0.39
D
MetaRNN
Benign
0.26
T;T
MetaSVM
Uncertain
-0.23
T
MutationAssessor
Benign
1.4
L;.
PhyloP100
4.9
PrimateAI
Uncertain
0.56
T
PROVEAN
Benign
0.020
N;N
REVEL
Uncertain
0.40
Sift
Uncertain
0.018
D;D
Sift4G
Benign
0.23
T;T
Polyphen
0.73
P;P
Vest4
0.12
MutPred
0.26
Gain of phosphorylation at P362 (P = 0.0047);.;
MVP
0.59
ClinPred
0.27
T
GERP RS
5.1
Varity_R
0.11
gMVP
0.60
Mutation Taster
=99/1
polymorphism

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

Other links and lift over

dbSNP: rs782171742; hg19: chrX-153296195; COSMIC: COSV57652398; COSMIC: COSV57652398; API