rs369813305

Variant names:

• chrX-154031114-C-T
• rs369813305
• NM_001110792.2:c.750G>A

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4 BP7 BS1

This summary comes from the ClinGen Evidence Repository: The allele frequency of the c.714G>A p.Gly238= variant in MECP2 is 0.008% in the African/African American sub population in gnomAD, which is high enough to meet the BS1 criteria based on thresholds defined by the ClinGen Rett/Angelman-like Expert Panel for Rett/AS-like conditions (BS1). The silent p.Gly238= variant is not predicted to affect splicing using multiple computational tools and does not affect a highly conserved nucleotide (BP4, BP7). In summary, the c.714G>A p.Gly238= variant in MECP2 is classified as Likely Benign based on the ACMG/AMP criteria (BS1, BP4, BP7). LINK:https://erepo.genome.network/evrepo/ui/classification/CA205378/MONDO:0010726/032

• Frequency:
  • Genomes: 𝑓 0.000036 (0 hom., 2 hem., cov: 23)
  • Exomes 𝑓: 0.000070 (0 hom. 24 hem.)
• Consequence: MECP2 NM_001110792.2 synonymous
• Clinical Significance: Likely benign reviewed by expert panel U:1 B:4
• Conservation: PhyloP100: 0.620
• Publications: 0 publications found

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 Gene-Disease associations (from GenCC):

• chromosome Xq28 duplication syndrome

  Inheritance: XL Classification: DEFINITIVE Submitted by: G2P
• Rett syndrome

  Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Ambry Genetics, ClinGen, Orphanet, Labcorp Genetics (formerly Invitae)
• severe neonatal-onset encephalopathy with microcephaly

  Inheritance: XL Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, Orphanet
• syndromic X-linked intellectual disability Lubs type

  Inheritance: XL Classification: DEFINITIVE Submitted by: G2P
• atypical Rett syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• non-syndromic X-linked intellectual disability

  Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
• X-linked intellectual disability-psychosis-macroorchidism syndrome

  Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
• systemic lupus erythematosus

  Inheritance: Unknown Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• BP4: For more information check the summary or visit ClinGen Evidence Repository.
• BP7: For more information check the summary or visit ClinGen Evidence Repository.
• BS1: For more information check the summary or visit ClinGen Evidence Repository.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001110792.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MECP2	NM_001110792.2	MANE Select	c.750G>A	p.Gly250Gly	synonymous	Exon 3 of 3	NP_001104262.1	A0A140VKC4
	MECP2	NM_004992.4	MANE Plus Clinical	c.714G>A	p.Gly238Gly	synonymous	Exon 4 of 4	NP_004983.1	D3YJ43
	MECP2	NM_001316337.2		c.435G>A	p.Gly145Gly	synonymous	Exon 5 of 5	NP_001303266.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MECP2	ENST00000453960.7	TSL:1 MANE Select	c.750G>A	p.Gly250Gly	synonymous	Exon 3 of 3	ENSP00000395535.2	P51608-2
	MECP2	ENST00000303391.11	TSL:1 MANE Plus Clinical	c.714G>A	p.Gly238Gly	synonymous	Exon 4 of 4	ENSP00000301948.6	P51608-1
	MECP2	ENST00000630151.3	TSL:5	c.714G>A	p.Gly238Gly	synonymous	Exon 4 of 4	ENSP00000486089.2	P51608-1

Frequencies

GnomAD3 genomes AF: 0.0000358 AC: 4 AN: 111587 Hom.: 0 Cov.: 23

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: 0.0000378

Gnomad OTH AF: 0.000666

GnomAD2 exomes AF: 0.0000273 AC: 5 AN: 183258 AF XY: 0.0000590

Gnomad AFR exome AF: 0.0000762

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000489

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000701 AC: 77 AN: 1098148 Hom.: 0 Cov.: 35 AF XY: 0.0000660 AC XY: 24 AN XY: 363502

African (AFR) AF: 0.00 AC: 0 AN: 26401

American (AMR) AF: 0.00 AC: 0 AN: 35204

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 19385

East Asian (EAS) AF: 0.00 AC: 0 AN: 30205

South Asian (SAS) AF: 0.00 AC: 0 AN: 54143

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 40526

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4137

European-Non Finnish (NFE) AF: 0.0000903 AC: 76 AN: 842054

Other (OTH) AF: 0.0000217 AC: 1 AN: 46093

GnomAD4 genome AF: 0.0000358 AC: 4 AN: 111587 Hom.: 0 Cov.: 23 AF XY: 0.0000591 AC XY: 2 AN XY: 33819

African (AFR) AF: 0.0000327 AC: 1 AN: 30610

American (AMR) AF: 0.00 AC: 0 AN: 10625

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 2639

East Asian (EAS) AF: 0.00 AC: 0 AN: 3533

South Asian (SAS) AF: 0.00 AC: 0 AN: 2673

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 6118

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 238

European-Non Finnish (NFE) AF: 0.0000378 AC: 2 AN: 52968

Other (OTH) AF: 0.000666 AC: 1 AN: 1502

Alfa AF: 0.000142 Hom.: 0

Bravo AF: 0.0000453

EpiCase AF: 0.00

EpiControl AF: 0.000296

ClinVar

ClinVar submissions as Germline

Significance: Likely benign

Revision: reviewed by expert panel

Pathogenic	VUS	Benign	Condition
-	1	1	not specified (2)
-	-	1	MECP2-related disorder (1)
-	-	1	Rett syndrome (1)
-	-	1	Severe neonatal-onset encephalopathy with microcephaly (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.50
CADD	Benign	7.8
DANN	Benign	0.55
PhyloP100		0.62
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Mutation Taster		=100/0	polymorphism

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

Other links and lift over

dbSNP: rs369813305; hg19: chrX-153296565;