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chr2-148178611-A-C

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBA1

The NM_001378120.1(MBD5):​c.-924-89A>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.352 in 388,598 control chromosomes in the GnomAD database, including 25,987 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.31 ( 8363 hom., cov: 32)
Exomes 𝑓: 0.38 ( 17624 hom. )

Consequence

MBD5
NM_001378120.1 intron

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.0520
Variant links:
Genes affected
MBD5 (HGNC:20444): (methyl-CpG binding domain protein 5) This gene encodes a member of the methyl-CpG-binding domain (MBD) family. The MBD consists of about 70 residues and is the minimal region required for a methyl-CpG-binding protein binding specifically to methylated DNA. In addition to the MBD domain, this protein contains a PWWP domain (Pro-Trp-Trp-Pro motif), which consists of 100-150 amino acids and is found in numerous proteins that are involved in cell division, growth and differentiation. Mutations in this gene cause an autosomal dominant type of cognitive disability. The encoded protein interacts with the polycomb repressive complex PR-DUB which catalyzes the deubiquitination of a lysine residue of histone 2A. Haploinsufficiency of this gene is associated with a syndrome involving microcephaly, intellectual disabilities, severe speech impairment, and seizures. Alternatively spliced transcript variants have been found, but their full-length nature is not determined. [provided by RefSeq, Jul 2017]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 2-148178611-A-C is Benign according to our data. Variant chr2-148178611-A-C is described in ClinVar as [Benign]. Clinvar id is 1262738.Status of the report is criteria_provided_single_submitter, 1 stars.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.446 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MBD5NM_001378120.1 linkuse as main transcriptc.-924-89A>C intron_variant ENST00000642680.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MBD5ENST00000642680.2 linkuse as main transcriptc.-924-89A>C intron_variant NM_001378120.1

Frequencies

GnomAD3 genomes
AF:
0.308
AC:
46862
AN:
152000
Hom.:
8368
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.118
Gnomad AMI
AF:
0.420
Gnomad AMR
AF:
0.341
Gnomad ASJ
AF:
0.429
Gnomad EAS
AF:
0.462
Gnomad SAS
AF:
0.300
Gnomad FIN
AF:
0.358
Gnomad MID
AF:
0.462
Gnomad NFE
AF:
0.389
Gnomad OTH
AF:
0.335
GnomAD4 exome
AF:
0.381
AC:
90037
AN:
236480
Hom.:
17624
AF XY:
0.382
AC XY:
45877
AN XY:
120110
show subpopulations
Gnomad4 AFR exome
AF:
0.117
Gnomad4 AMR exome
AF:
0.361
Gnomad4 ASJ exome
AF:
0.441
Gnomad4 EAS exome
AF:
0.443
Gnomad4 SAS exome
AF:
0.302
Gnomad4 FIN exome
AF:
0.366
Gnomad4 NFE exome
AF:
0.385
Gnomad4 OTH exome
AF:
0.366
GnomAD4 genome
AF:
0.308
AC:
46866
AN:
152118
Hom.:
8363
Cov.:
32
AF XY:
0.307
AC XY:
22806
AN XY:
74360
show subpopulations
Gnomad4 AFR
AF:
0.118
Gnomad4 AMR
AF:
0.341
Gnomad4 ASJ
AF:
0.429
Gnomad4 EAS
AF:
0.461
Gnomad4 SAS
AF:
0.301
Gnomad4 FIN
AF:
0.358
Gnomad4 NFE
AF:
0.389
Gnomad4 OTH
AF:
0.334
Alfa
AF:
0.342
Hom.:
1215
Bravo
AF:
0.304
Asia WGS
AF:
0.316
AC:
1095
AN:
3466

ClinVar

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

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingGeneDxJun 23, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
3.3
DANN
Benign
0.76

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: rs12465610; hg19: chr2-148936180; COSMIC: COSV69486586; COSMIC: COSV69486586; API