rs200074866

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_001110792.2(MECP2):​c.597C>A​(p.Gly199=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000248 in 1,210,600 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 0 hem., cov: 23)
Exomes 𝑓: 0.0000018 ( 0 hom. 1 hem. )

Consequence

MECP2
NM_001110792.2 synonymous

Scores

3
9

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.782
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.05198136).
BP6
Variant X-154031267-G-T is Benign according to our data. Variant chrX-154031267-G-T is described in ClinVar as [Likely_benign]. Clinvar id is 413766.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=-0.782 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MECP2NM_001110792.2 linkuse as main transcriptc.597C>A p.Gly199= synonymous_variant 3/3 ENST00000453960.7
MECP2NM_004992.4 linkuse as main transcriptc.561C>A p.Gly187= synonymous_variant 4/4 ENST00000303391.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MECP2ENST00000453960.7 linkuse as main transcriptc.597C>A p.Gly199= synonymous_variant 3/31 NM_001110792.2 P51608-2
MECP2ENST00000303391.11 linkuse as main transcriptc.561C>A p.Gly187= synonymous_variant 4/41 NM_004992.4 P1P51608-1

Frequencies

GnomAD3 genomes
AF:
0.00000890
AC:
1
AN:
112312
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
34458
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000188
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000546
AC:
1
AN:
183244
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67746
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:
0.0000122
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000182
AC:
2
AN:
1098234
Hom.:
0
Cov.:
34
AF XY:
0.00000275
AC XY:
1
AN XY:
363590
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:
0.00000237
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000890
AC:
1
AN:
112366
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
34522
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000188
Gnomad4 OTH
AF:
0.00

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Severe neonatal-onset encephalopathy with microcephaly Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeNov 27, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.67
CADD
Benign
2.9
DANN
Benign
0.95
DEOGEN2
Benign
0.070
T;T
FATHMM_MKL
Benign
0.15
N
LIST_S2
Benign
0.38
T;T
M_CAP
Uncertain
0.095
D
MetaRNN
Benign
0.052
T;T
MetaSVM
Uncertain
0.39
D
MutationTaster
Benign
1.0
D;D;N
REVEL
Benign
0.25
Sift4G
Uncertain
0.0070
D;D
Vest4
0.24
MutPred
0.48
Gain of solvent accessibility (P = 0.0354);.;
MVP
0.92
ClinPred
0.049
T
GERP RS
-3.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs200074866; hg19: chrX-153296718; API