6-37638287-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_153487.4(MDGA1):​c.2694G>A​(p.Pro898Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000918 in 1,611,772 control chromosomes in the GnomAD database, including 1 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 0.00012 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000088 ( 1 hom. )

Consequence

MDGA1
NM_153487.4 synonymous

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -4.38
Variant links:
Genes affected
MDGA1 (HGNC:19267): (MAM domain containing glycosylphosphatidylinositol anchor 1) This gene encodes a glycosylphosphatidylinositol (GPI)-anchored cell surface glycoprotein that is expressed predominantly in the developing nervous system. In addition to possessing several cell adhesion molecule-like domains, the mature protein has six Ig-like domains, a single fibronectin type III domain, a MAM domain and a C-terminal GPI-anchoring site. Studies in other mammals suggest this protein plays a role in cell adhesion, migration, and axon guidance and, in the developing brain, neuronal migration. In humans, this gene is associated with bipolar disorder and schizophrenia. [provided by RefSeq, Oct 2016]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.65).
BP7
Synonymous conserved (PhyloP=-4.38 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MDGA1NM_153487.4 linkc.2694G>A p.Pro898Pro synonymous_variant Exon 16 of 17 ENST00000434837.8 NP_705691.1 Q8NFP4-1
MDGA1XM_006715056.4 linkc.2694G>A p.Pro898Pro synonymous_variant Exon 16 of 16 XP_006715119.1 Q8NFP4-2
MDGA1XM_017010734.2 linkc.2694G>A p.Pro898Pro synonymous_variant Exon 16 of 17 XP_016866223.1
MDGA1XM_047418637.1 linkc.2526G>A p.Pro842Pro synonymous_variant Exon 16 of 16 XP_047274593.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MDGA1ENST00000434837.8 linkc.2694G>A p.Pro898Pro synonymous_variant Exon 16 of 17 1 NM_153487.4 ENSP00000402584.2 Q8NFP4-1

Frequencies

GnomAD3 genomes
AF:
0.000125
AC:
19
AN:
152038
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000725
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00346
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000141
AC:
35
AN:
247502
Hom.:
1
AF XY:
0.000127
AC XY:
17
AN XY:
134198
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00272
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000331
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000356
Gnomad OTH exome
AF:
0.000500
GnomAD4 exome
AF:
0.0000884
AC:
129
AN:
1459734
Hom.:
1
Cov.:
31
AF XY:
0.000101
AC XY:
73
AN XY:
726000
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00334
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000466
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000225
Gnomad4 OTH exome
AF:
0.000199
GnomAD4 genome
AF:
0.000125
AC:
19
AN:
152038
Hom.:
0
Cov.:
32
AF XY:
0.000135
AC XY:
10
AN XY:
74254
show subpopulations
Gnomad4 AFR
AF:
0.0000725
Gnomad4 AMR
AF:
0.0000655
Gnomad4 ASJ
AF:
0.00346
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.000642
Hom.:
0
Bravo
AF:
0.000170
EpiCase
AF:
0.000109
EpiControl
AF:
0.000119

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.65
CADD
Benign
0.90
DANN
Benign
0.90

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: rs201158201; hg19: chr6-37606063; API