X-154030470-C-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP6_Very_StrongBS2

The NM_001110792.2(MECP2):c.1394G>A(p.Arg465Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000174 in 1,209,640 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 7 hemizygotes in GnomAD. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0000090 ( 0 hom., 0 hem., cov: 22)

Exomes 𝑓: 0.000018 ( 0 hom. 7 hem. )

Consequence

MECP2
NM_001110792.2 missense

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts U:1B:2

Conservation

PhyloP100: 4.54

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -12 ACMG points.

BP6

Variant X-154030470-C-T is Benign according to our data. Variant chrX-154030470-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 143468.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High Hemizygotes in GnomAdExome4 at 7 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MECP2	NM_001110792.2 link	c.1394G>A	p.Arg465Gln	missense_variant	Exon 3 of 3	ENST00000453960.7	NP_001104262.1	P51608-2A0A140VKC4Q59FJ6
MECP2	NM_004992.4 link	c.1358G>A	p.Arg453Gln	missense_variant	Exon 4 of 4	ENST00000303391.11	NP_004983.1	P51608-1D3YJ43Q59FJ6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MECP2	ENST00000453960.7 link	c.1394G>A	p.Arg465Gln	missense_variant	Exon 3 of 3	1	NM_001110792.2	ENSP00000395535.2	P51608-2
MECP2	ENST00000303391.11 link	c.1358G>A	p.Arg453Gln	missense_variant	Exon 4 of 4	1	NM_004992.4	ENSP00000301948.6	P51608-1
MECP2	ENST00000628176 link	c.*730G>A		3_prime_UTR_variant	Exon 5 of 5	3		ENSP00000486978.1	A0A0D9SFX7
MECP2	ENST00000407218.5 link	c.*730G>A		downstream_gene_variant		5		ENSP00000384865.2	B5MCB4

Frequencies

GnomAD3 genomes

AF:

0.00000898

AC:

AN:

111394

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33584

show subpopulations

Gnomad AFR

AF:

0.0000327

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:

0.0000109

AC:

AN:

183496

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

67928

show subpopulations

Gnomad AFR exome

AF:

0.0000760

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:

0.00

Gnomad OTH exome

AF:

0.000221

GnomAD4 exome

AF:

0.0000182

AC:

AN:

1098246

Hom.:

Cov.:

AF XY:

0.0000193

AC XY:

AN XY:

363600

show subpopulations

Gnomad4 AFR exome

AF:

0.0000379

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:

0.0000202

Gnomad4 OTH exome

AF:

0.0000434

GnomAD4 genome

AF:

0.00000898

AC:

AN:

111394

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

33584

show subpopulations

Gnomad4 AFR

AF:

0.0000327

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

Alfa

AF:

0.0000868

Hom.:

Bravo

AF:

0.0000151

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

Significance: Likely benign

Submissions summary: Uncertain:1Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

X-linked intellectual disability-psychosis-macroorchidism syndrome

Uncertain:1

Apr 10, 2002

RettBASE

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: curation

- -

Rett syndrome

Benign:1

Mar 14, 2024

Centre for Population Genomics, CPG

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: curation

This variant has been collected from RettBASE and curated to current modified ACMG/AMP criteria. Based on the classification scheme defined by the ClinGen Rett/Angelman-like Expert Panel for Rett/AS-like Disorders Specifications to the ACMG/AMP Variant Interpretation Guidelines VCEP 3.0, this variant is classified as likely benign. At least the following criteria are met: The variant is observed in at least 1 individual with no features of Rett Syndrome (BS2_Supporting). -

Severe neonatal-onset encephalopathy with microcephaly

Benign:1

Feb 20, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.23

BayesDel_addAF

Pathogenic

0.31

BayesDel_noAF

Pathogenic

0.21

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.34

T;.

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.96

D;D

M_CAP

Pathogenic

0.37

MetaRNN

Uncertain

0.63

D;D

MetaSVM

Uncertain

0.37

MutationAssessor

Benign

0.90

L;.

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-0.28

N;N

REVEL

Uncertain

0.59

Sift

Uncertain

0.0070

D;D

Sift4G

Benign

0.60

T;T

Polyphen

1.0

D;D

Vest4

0.38

MutPred

0.69

Loss of MoRF binding (P = 0.0257);.;

MVP

0.99

ClinPred

0.14

GERP RS

5.7

Varity_R

0.24

gMVP

0.30

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over