X-154031020-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_001110792.2(MECP2):ā€‹c.844C>Gā€‹(p.Arg282Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000911 in 1,098,172 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as not provided (no stars).

Frequency

Genomes: not found (cov: 22)
Exomes š‘“: 9.1e-7 ( 0 hom. 0 hem. )

Consequence

MECP2
NM_001110792.2 missense

Scores

9
7
1

Clinical Significance

not provided no classification provided O:1

Conservation

PhyloP100: 2.94
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 Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.766

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MECP2NM_001110792.2 linkuse as main transcriptc.844C>G p.Arg282Gly missense_variant 3/3 ENST00000453960.7 NP_001104262.1
MECP2NM_004992.4 linkuse as main transcriptc.808C>G p.Arg270Gly missense_variant 4/4 ENST00000303391.11 NP_004983.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MECP2ENST00000453960.7 linkuse as main transcriptc.844C>G p.Arg282Gly missense_variant 3/31 NM_001110792.2 ENSP00000395535 P51608-2
MECP2ENST00000303391.11 linkuse as main transcriptc.808C>G p.Arg270Gly missense_variant 4/41 NM_004992.4 ENSP00000301948 P1P51608-1

Frequencies

GnomAD3 genomes
Cov.:
22
GnomAD3 exomes
AF:
0.00000549
AC:
1
AN:
182290
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67344
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:
0.0000123
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
9.11e-7
AC:
1
AN:
1098172
Hom.:
0
Cov.:
35
AF XY:
0.00
AC XY:
0
AN XY:
363540
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:
0.00000119
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
22
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: not provided
Submissions summary: Other:1
Revision: no classification provided
LINK: link

Submissions by phenotype

not provided Other:1
not provided, no classification providedliterature onlyRettBASE-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.93
BayesDel_addAF
Pathogenic
0.52
D
BayesDel_noAF
Pathogenic
0.50
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.82
D;.;T
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Pathogenic
0.98
D;D;D
M_CAP
Pathogenic
0.94
D
MetaRNN
Pathogenic
0.77
D;D;D
MetaSVM
Uncertain
0.55
D
MutationAssessor
Uncertain
2.3
M;.;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.72
T
PROVEAN
Uncertain
-2.9
D;D;.
REVEL
Pathogenic
0.65
Sift
Pathogenic
0.0
D;D;.
Sift4G
Uncertain
0.048
D;D;D
Polyphen
0.99
D;D;.
Vest4
0.59
MutPred
0.21
Gain of ubiquitination at K267 (P = 0.0301);.;.;
MVP
0.99
ClinPred
0.97
D
GERP RS
3.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.81
gMVP
0.95

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: rs61750240; hg19: chrX-153296471; API