rs267608363

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_001110792.2(MECP2):​c.*806G>C variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000178 in 112,238 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 0 hem., cov: 24)
Exomes 𝑓: 0.0 ( 0 hom. 0 hem. )
Failed GnomAD Quality Control

Consequence

MECP2
NM_001110792.2 3_prime_UTR

Scores

2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.364

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: Likely_benign. The variant received -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant X-154029561-C-G is Benign according to our data. Variant chrX-154029561-C-G is described in ClinVar as Likely_benign. ClinVar VariationId is 3059398.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MECP2NM_001110792.2 linkc.*806G>C 3_prime_UTR_variant Exon 3 of 3 ENST00000453960.7 NP_001104262.1
MECP2NM_004992.4 linkc.*806G>C 3_prime_UTR_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.*806G>C 3_prime_UTR_variant Exon 3 of 3 1 NM_001110792.2 ENSP00000395535.2
MECP2ENST00000303391.11 linkc.*806G>C 3_prime_UTR_variant Exon 4 of 4 1 NM_004992.4 ENSP00000301948.6
MECP2ENST00000630151.3 linkc.*806G>C 3_prime_UTR_variant Exon 4 of 4 5 ENSP00000486089.2

Frequencies

GnomAD3 genomes
AF:
0.0000178
AC:
2
AN:
112238
Hom.:
0
Cov.:
24
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000933
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000280
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AC0;AS_VQSR
AF:
0.00
AC:
0
AN:
1811
Hom.:
0
Cov.:
0
AF XY:
0.00
AC XY:
0
AN XY:
415
African (AFR)
AF:
0.00
AC:
0
AN:
5
American (AMR)
AF:
0.00
AC:
0
AN:
351
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
4
East Asian (EAS)
AF:
0.00
AC:
0
AN:
10
South Asian (SAS)
AF:
0.00
AC:
0
AN:
69
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
197
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
3
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111
Other (OTH)
AF:
0.00
AC:
0
AN:
61
GnomAD4 genome
AF:
0.0000178
AC:
2
AN:
112238
Hom.:
0
Cov.:
24
AF XY:
0.00
AC XY:
0
AN XY:
34380
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
30859
American (AMR)
AF:
0.0000933
AC:
1
AN:
10718
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2647
East Asian (EAS)
AF:
0.000280
AC:
1
AN:
3574
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2707
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6175
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
240
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
53114
Other (OTH)
AF:
0.00
AC:
0
AN:
1518
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

MECP2-related disorder Benign:1
Nov 12, 2021
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
-0.80
CADD
Benign
2.1
DANN
Benign
0.64
PhyloP100
0.36

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: rs267608363; hg19: chrX-153295012; API