rs61749724

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate

The NM_001110792.2(MECP2):​c.647C>T​(p.Ser216Leu) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 22)
Exomes 𝑓: 9.1e-7 ( 0 hom. 1 hem. )
Failed GnomAD Quality Control

Consequence

MECP2
NM_001110792.2 missense

Scores

2
2
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.69
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 Likely_pathogenic. Variant got 6 ACMG points.

PM1
In a modified_residue Phosphoserine (size 0) in uniprot entity MECP2_HUMAN
PM2
Very rare variant in population databases, with high coverage;
PP3
BayesDel_addAF computational evidence supports a deleterious effect, 0.317

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MECP2NM_001110792.2 linkuse as main transcriptc.647C>T p.Ser216Leu missense_variant 3/3 ENST00000453960.7 NP_001104262.1
MECP2NM_004992.4 linkuse as main transcriptc.611C>T p.Ser204Leu 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.647C>T p.Ser216Leu missense_variant 3/31 NM_001110792.2 ENSP00000395535 P51608-2
MECP2ENST00000303391.11 linkuse as main transcriptc.611C>T p.Ser204Leu missense_variant 4/41 NM_004992.4 ENSP00000301948 P1P51608-1

Frequencies

GnomAD3 genomes
Cov.:
22
GnomAD3 exomes
AF:
0.00000545
AC:
1
AN:
183492
Hom.:
0
AF XY:
0.0000147
AC XY:
1
AN XY:
67926
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000365
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
9.11e-7
AC:
1
AN:
1098256
Hom.:
0
Cov.:
35
AF XY:
0.00000275
AC XY:
1
AN XY:
363616
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000284
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
22
Alfa
AF:
0.000132
Hom.:
1
Bravo
AF:
0.0000264

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Pathogenic
0.32
D
BayesDel_noAF
Uncertain
0.11
CADD
Benign
21
DANN
Uncertain
1.0
FATHMM_MKL
Pathogenic
0.99
D
MutationTaster
Benign
0.61
D;D;D
Vest4
0.72
ClinPred
0.63
D
GERP RS
5.3

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: rs61749724; hg19: chrX-153296668; API