X-154032368-C-T

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The ENST00000453960.7(MECP2):​c.252G>A​(p.Pro84=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000132 in 1,211,282 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 4 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. P84P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000088 ( 0 hom., 0 hem., cov: 25)
Exomes 𝑓: 0.000014 ( 0 hom. 4 hem. )

Consequence

MECP2
ENST00000453960.7 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -2.83
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.75).
BP6
Variant X-154032368-C-T is Benign according to our data. Variant chrX-154032368-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 211458.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-2.83 with no splicing effect.
BS2
High Hemizygotes in GnomAdExome4 at 4 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MECP2NM_001110792.2 linkuse as main transcriptc.252G>A p.Pro84= synonymous_variant 2/3 ENST00000453960.7 NP_001104262.1
MECP2NM_004992.4 linkuse as main transcriptc.216G>A p.Pro72= synonymous_variant 3/4 ENST00000303391.11 NP_004983.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MECP2ENST00000453960.7 linkuse as main transcriptc.252G>A p.Pro84= synonymous_variant 2/31 NM_001110792.2 ENSP00000395535 P51608-2
MECP2ENST00000303391.11 linkuse as main transcriptc.216G>A p.Pro72= synonymous_variant 3/41 NM_004992.4 ENSP00000301948 P1P51608-1

Frequencies

GnomAD3 genomes
AF:
0.00000883
AC:
1
AN:
113249
Hom.:
0
Cov.:
25
AF XY:
0.00
AC XY:
0
AN XY:
35387
show subpopulations
Gnomad AFR
AF:
0.0000320
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000219
AC:
4
AN:
183054
Hom.:
0
AF XY:
0.0000148
AC XY:
1
AN XY:
67564
show subpopulations
Gnomad AFR exome
AF:
0.0000761
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:
0.0000137
AC:
15
AN:
1098033
Hom.:
0
Cov.:
32
AF XY:
0.0000110
AC XY:
4
AN XY:
363399
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000331
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000166
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000883
AC:
1
AN:
113249
Hom.:
0
Cov.:
25
AF XY:
0.00
AC XY:
0
AN XY:
35387
show subpopulations
Gnomad4 AFR
AF:
0.0000320
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoFeb 08, 2013- -
Severe neonatal-onset encephalopathy with microcephaly Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 21, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.75
CADD
Benign
0.23
DANN
Benign
0.64
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs781942427; hg19: chrX-153297819; API