19-1250527-C-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001388306.1(MIDN):​c.231C>A​(p.Asp77Glu) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000672 in 148,782 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000067 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

MIDN
NM_001388306.1 missense, splice_region

Scores

2
1
16
Splicing: ADA: 0.0005412
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0890
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 Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.057926655).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MIDNNM_001388306.1 linkuse as main transcriptc.231C>A p.Asp77Glu 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 linkuse as main transcriptc.231C>A p.Asp77Glu missense_variant, splice_region_variant 2/9 NM_001388306.1 ENSP00000507955 A2
MIDNENST00000591446.7 linkuse as main transcriptc.231C>A p.Asp77Glu missense_variant, splice_region_variant 1/71 ENSP00000467679 P2
MIDNENST00000300952.7 linkuse as main transcriptc.231C>A p.Asp77Glu missense_variant, splice_region_variant 2/85 ENSP00000300952 P2

Frequencies

GnomAD3 genomes
AF:
0.00000672
AC:
1
AN:
148782
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000195
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000394
AC:
5
AN:
127036
Hom.:
0
AF XY:
0.0000271
AC XY:
2
AN XY:
73888
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000739
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1101382
Hom.:
0
Cov.:
26
AF XY:
0.00
AC XY:
0
AN XY:
532938
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000672
AC:
1
AN:
148782
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
72492
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000195
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113

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 GeneticsDec 14, 2023The c.231C>A (p.D77E) alteration is located in exon 2 (coding exon 1) of the MIDN gene. This alteration results from a C to A substitution at nucleotide position 231, causing the aspartic acid (D) at amino acid position 77 to be replaced by a glutamic acid (E). 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
Uncertain
0.35
BayesDel_addAF
Benign
-0.44
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
20
DANN
Benign
0.97
DEOGEN2
Benign
0.068
.;T;T
Eigen
Benign
-0.93
Eigen_PC
Benign
-0.74
FATHMM_MKL
Benign
0.16
N
LIST_S2
Benign
0.74
T;T;.
M_CAP
Pathogenic
0.95
D
MetaRNN
Benign
0.058
T;T;T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
-0.10
.;N;N
MutationTaster
Benign
0.97
N;N
PrimateAI
Pathogenic
0.87
D
PROVEAN
Benign
0.55
.;N;.
REVEL
Benign
0.13
Sift
Benign
1.0
.;T;.
Sift4G
Benign
1.0
T;T;T
Polyphen
0.0020
.;B;B
Vest4
0.054, 0.052
MutPred
0.11
Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);Gain of sheet (P = 0.1208);
MVP
0.50
MPC
0.25
ClinPred
0.084
T
GERP RS
1.6
Varity_R
0.070
gMVP
0.22

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00054
dbscSNV1_RF
Benign
0.11
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: rs781052615; hg19: chr19-1250526; COSMIC: COSV56296236; COSMIC: COSV56296236; API