chr18-50276984-C-T

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP7BA1

The NM_015846.4(MBD1):​c.240G>A​(p.Ala80=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.107 in 1,614,128 control chromosomes in the GnomAD database, including 18,021 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.10 ( 1902 hom., cov: 33)
Exomes 𝑓: 0.11 ( 16119 hom. )

Consequence

MBD1
NM_015846.4 synonymous

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.346
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 -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.74).
BP7
Synonymous conserved (PhyloP=-0.346 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.578 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MBD1NM_015846.4 linkuse as main transcriptc.240G>A p.Ala80= synonymous_variant 4/17 ENST00000269468.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MBD1ENST00000269468.10 linkuse as main transcriptc.240G>A p.Ala80= synonymous_variant 4/175 NM_015846.4 Q9UIS9-1

Frequencies

GnomAD3 genomes
AF:
0.105
AC:
15913
AN:
152134
Hom.:
1896
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0247
Gnomad AMI
AF:
0.0702
Gnomad AMR
AF:
0.223
Gnomad ASJ
AF:
0.124
Gnomad EAS
AF:
0.595
Gnomad SAS
AF:
0.261
Gnomad FIN
AF:
0.0944
Gnomad MID
AF:
0.0981
Gnomad NFE
AF:
0.0785
Gnomad OTH
AF:
0.130
GnomAD3 exomes
AF:
0.172
AC:
43162
AN:
251468
Hom.:
6657
AF XY:
0.169
AC XY:
22950
AN XY:
135904
show subpopulations
Gnomad AFR exome
AF:
0.0233
Gnomad AMR exome
AF:
0.302
Gnomad ASJ exome
AF:
0.116
Gnomad EAS exome
AF:
0.607
Gnomad SAS exome
AF:
0.245
Gnomad FIN exome
AF:
0.0945
Gnomad NFE exome
AF:
0.0842
Gnomad OTH exome
AF:
0.144
GnomAD4 exome
AF:
0.108
AC:
157403
AN:
1461876
Hom.:
16119
Cov.:
36
AF XY:
0.111
AC XY:
80769
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.0243
Gnomad4 AMR exome
AF:
0.291
Gnomad4 ASJ exome
AF:
0.118
Gnomad4 EAS exome
AF:
0.587
Gnomad4 SAS exome
AF:
0.246
Gnomad4 FIN exome
AF:
0.0966
Gnomad4 NFE exome
AF:
0.0740
Gnomad4 OTH exome
AF:
0.126
GnomAD4 genome
AF:
0.105
AC:
15935
AN:
152252
Hom.:
1902
Cov.:
33
AF XY:
0.113
AC XY:
8376
AN XY:
74438
show subpopulations
Gnomad4 AFR
AF:
0.0248
Gnomad4 AMR
AF:
0.223
Gnomad4 ASJ
AF:
0.124
Gnomad4 EAS
AF:
0.595
Gnomad4 SAS
AF:
0.263
Gnomad4 FIN
AF:
0.0944
Gnomad4 NFE
AF:
0.0785
Gnomad4 OTH
AF:
0.131
Alfa
AF:
0.0839
Hom.:
1010
Bravo
AF:
0.113
Asia WGS
AF:
0.390
AC:
1353
AN:
3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.74
CADD
Benign
4.0
DANN
Benign
0.39
RBP_binding_hub_radar
0.97
RBP_regulation_power_radar
2.9

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs140686; hg19: chr18-47803354; COSMIC: COSV54006296; COSMIC: COSV54006296; API