rs267608344

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_ModerateBP6_ModerateBS1BS2

The NM_001110792.2(MECP2):​c.*55C>G variant causes a 3 prime UTR change. The variant allele was found at a frequency of 0.000124 in 1,205,688 control chromosomes in the GnomAD database, including 3 homozygotes. There are 36 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.00013 ( 1 hom., 1 hem., cov: 22)
Exomes 𝑓: 0.00012 ( 2 hom. 35 hem. )

Consequence

MECP2
NM_001110792.2 3_prime_UTR

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: 4.29

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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -12 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.45).
BP6
Variant X-154030312-G-C is Benign according to our data. Variant chrX-154030312-G-C is described in ClinVar as Benign. ClinVar VariationId is 143279.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000135 (15/111292) while in subpopulation EAS AF = 0.0014 (5/3565). AF 95% confidence interval is 0.000552. There are 1 homozygotes in GnomAd4. There are 1 alleles in the male GnomAd4 subpopulation. Median coverage is 22. This position passed quality control check.
BS2
High AC in GnomAd4 at 15 XL,Unknown,AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MECP2NM_001110792.2 linkc.*55C>G 3_prime_UTR_variant Exon 3 of 3 ENST00000453960.7 NP_001104262.1 P51608-2A0A140VKC4Q59FJ6
MECP2NM_004992.4 linkc.*55C>G 3_prime_UTR_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
MECP2ENST00000453960.7 linkc.*55C>G 3_prime_UTR_variant Exon 3 of 3 1 NM_001110792.2 ENSP00000395535.2 P51608-2
MECP2ENST00000303391.11 linkc.*55C>G 3_prime_UTR_variant Exon 4 of 4 1 NM_004992.4 ENSP00000301948.6 P51608-1

Frequencies

GnomAD3 genomes
AF:
0.000135
AC:
15
AN:
111292
Hom.:
1
Cov.:
22
show subpopulations
Gnomad AFR
AF:
0.0000327
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000759
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00140
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000671
GnomAD2 exomes
AF:
0.0000765
AC:
14
AN:
183065
AF XY:
0.0000296
show subpopulations
Gnomad AFR exome
AF:
0.0000762
Gnomad AMR exome
AF:
0.0000365
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000866
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000122
AC:
134
AN:
1094396
Hom.:
2
Cov.:
30
AF XY:
0.0000972
AC XY:
35
AN XY:
359936
show subpopulations
African (AFR)
AF:
0.0000380
AC:
1
AN:
26344
American (AMR)
AF:
0.0000284
AC:
1
AN:
35203
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19369
East Asian (EAS)
AF:
0.000662
AC:
20
AN:
30193
South Asian (SAS)
AF:
0.0000370
AC:
2
AN:
54059
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
40295
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4126
European-Non Finnish (NFE)
AF:
0.00000119
AC:
1
AN:
838847
Other (OTH)
AF:
0.00237
AC:
109
AN:
45960
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
6
13
19
26
32
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
AF:
0.000135
AC:
15
AN:
111292
Hom.:
1
Cov.:
22
AF XY:
0.0000299
AC XY:
1
AN XY:
33480
show subpopulations
African (AFR)
AF:
0.0000327
AC:
1
AN:
30560
American (AMR)
AF:
0.000759
AC:
8
AN:
10542
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2642
East Asian (EAS)
AF:
0.00140
AC:
5
AN:
3565
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2584
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6019
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
238
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
52964
Other (OTH)
AF:
0.000671
AC:
1
AN:
1491
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
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

Genome Het
Genome 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
Alfa
AF:
0.000304
Hom.:
1
Bravo
AF:
0.000140

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Aug 24, 2010
RettBASE
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:curation

- -

Rett syndrome Benign:1
Oct 04, 2023
Centre for Population Genomics, CPG
Significance: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 2.0, this variant is classified as benign. At least the following criteria are met: The allele frequency of this variant in at least one population in gnomAD is higher than the 0.03% threshold defined by the ClinGen Rett/Angelman-like Expert Panel for Rett/AS-like Disorders VCEP 2.0 (BA1). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.45
CADD
Benign
17
DANN
Benign
0.88
PhyloP100
4.3
Mutation Taster
=100/0
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: rs267608344; hg19: chrX-153295763; API