19-1250528-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001388306.1(MIDN):ā€‹c.232A>Gā€‹(p.Thr78Ala) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000912 in 1,095,936 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 9.1e-7 ( 0 hom. )

Consequence

MIDN
NM_001388306.1 missense, splice_region

Scores

2
1
16
Splicing: ADA: 0.9954
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.40
Variant links:
Genes affected
MIDN (HGNC:16298): (midnolin) Predicted to enable kinase binding activity. Predicted to be involved in negative regulation of glucokinase activity and negative regulation of insulin secretion. Located in cytoplasm and nucleus. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MIDNNM_001388306.1 linkc.232A>G p.Thr78Ala missense_variant, splice_region_variant 2/9 ENST00000682408.1 NP_001375235.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MIDNENST00000682408.1 linkc.232A>G p.Thr78Ala missense_variant, splice_region_variant 2/9 NM_001388306.1 ENSP00000507955.1 A0A804HKJ8
MIDNENST00000591446.7 linkc.232A>G p.Thr78Ala missense_variant, splice_region_variant 1/71 ENSP00000467679.1 Q504T8
MIDNENST00000300952.7 linkc.232A>G p.Thr78Ala missense_variant, splice_region_variant 2/85 ENSP00000300952.2 Q504T8

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
9.12e-7
AC:
1
AN:
1095936
Hom.:
0
Cov.:
26
AF XY:
0.00
AC XY:
0
AN XY:
530324
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000111
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsOct 03, 2023The c.232A>G (p.T78A) alteration is located in exon 2 (coding exon 1) of the MIDN gene. This alteration results from a A to G substitution at nucleotide position 232, causing the threonine (T) at amino acid position 78 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Benign
-0.067
T
BayesDel_noAF
Benign
-0.33
CADD
Uncertain
25
DANN
Benign
0.94
DEOGEN2
Benign
0.17
.;T;T
Eigen
Benign
-0.39
Eigen_PC
Benign
-0.29
FATHMM_MKL
Benign
0.39
N
LIST_S2
Benign
0.72
T;T;.
M_CAP
Pathogenic
0.96
D
MetaRNN
Benign
0.20
T;T;T
MetaSVM
Benign
-0.89
T
MutationAssessor
Uncertain
2.0
.;M;M
PrimateAI
Pathogenic
0.84
D
PROVEAN
Benign
-1.2
.;N;.
REVEL
Benign
0.14
Sift
Benign
0.24
.;T;.
Sift4G
Benign
0.36
T;T;T
Polyphen
0.0020
.;B;B
Vest4
0.17, 0.17
MutPred
0.12
Loss of phosphorylation at T78 (P = 0.0654);Loss of phosphorylation at T78 (P = 0.0654);Loss of phosphorylation at T78 (P = 0.0654);
MVP
0.70
MPC
0.29
ClinPred
0.38
T
GERP RS
2.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.14
gMVP
0.30

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.84
SpliceAI score (max)
0.23
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.23
Position offset: 5

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-1250527; API