chr18-50273657-C-T

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_015846.4(MBD1):​c.1353G>A​(p.Pro451=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00126 in 1,613,980 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00064 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0013 ( 4 hom. )

Consequence

MBD1
NM_015846.4 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.771
Variant links:
Genes affected
MBD1 (HGNC:6916): (methyl-CpG binding domain protein 1) The protein encoded by this gene is a member of a family of nuclear proteins related by the presence of a methyl-CpG binding domain (MBD). These proteins are capable of binding specifically to methylated DNA, and some members can also repress transcription from methylated gene promoters. This protein contains multiple domains: MBD at the N-terminus that functions both in binding to methylated DNA and in protein interactions; several CXXC-type zinc finger domains that mediate binding to non-methylated CpG dinucleotides; transcriptional repression domain (TRD) at the C-terminus that is involved in transcription repression and in protein interactions. Numerous alternatively spliced transcript variants encoding different isoforms have been noted for this gene.[provided by RefSeq, Feb 2011]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.53).
BP6
Variant 18-50273657-C-T is Benign according to our data. Variant chr18-50273657-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 783070.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.771 with no splicing effect.
BS2
High Homozygotes in GnomAdExome4 at 4 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MBD1NM_015846.4 linkuse as main transcriptc.1353G>A p.Pro451= synonymous_variant 12/17 ENST00000269468.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MBD1ENST00000269468.10 linkuse as main transcriptc.1353G>A p.Pro451= synonymous_variant 12/175 NM_015846.4 Q9UIS9-1

Frequencies

GnomAD3 genomes
AF:
0.000637
AC:
97
AN:
152222
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000458
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000471
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00109
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000693
AC:
174
AN:
251060
Hom.:
0
AF XY:
0.000700
AC XY:
95
AN XY:
135710
show subpopulations
Gnomad AFR exome
AF:
0.000308
Gnomad AMR exome
AF:
0.000202
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00141
Gnomad NFE exome
AF:
0.00113
Gnomad OTH exome
AF:
0.000652
GnomAD4 exome
AF:
0.00133
AC:
1940
AN:
1461640
Hom.:
4
Cov.:
31
AF XY:
0.00129
AC XY:
936
AN XY:
727096
show subpopulations
Gnomad4 AFR exome
AF:
0.000209
Gnomad4 AMR exome
AF:
0.000246
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00190
Gnomad4 NFE exome
AF:
0.00158
Gnomad4 OTH exome
AF:
0.00108
GnomAD4 genome
AF:
0.000637
AC:
97
AN:
152340
Hom.:
0
Cov.:
33
AF XY:
0.000497
AC XY:
37
AN XY:
74492
show subpopulations
Gnomad4 AFR
AF:
0.000240
Gnomad4 AMR
AF:
0.000457
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000471
Gnomad4 NFE
AF:
0.00109
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.00102
Hom.:
0
Bravo
AF:
0.000657
EpiCase
AF:
0.00120
EpiControl
AF:
0.000948

ClinVar

Significance: Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenMar 01, 2023MBD1: BP4, BP7 -
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJun 14, 2018- -
MBD1-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJul 12, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.53
CADD
Benign
7.4
DANN
Benign
0.64

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs139622890; hg19: chr18-47800027; COSMIC: COSV54004063; COSMIC: COSV54004063; API