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GeneBe

X-10449435-T-C

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_000381.4(MID1):ā€‹c.1937A>Gā€‹(p.Lys646Arg) variant causes a missense change. The variant allele was found at a frequency of 0.0000118 in 1,098,175 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 2 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 23)
Exomes š‘“: 0.000012 ( 0 hom. 2 hem. )

Consequence

MID1
NM_000381.4 missense

Scores

5
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.69
Variant links:
Genes affected
MID1 (HGNC:7095): (midline 1) The protein encoded by this gene is a member of the tripartite motif (TRIM) family, also known as the 'RING-B box-coiled coil' (RBCC) subgroup of RING finger proteins. The TRIM motif includes three zinc-binding domains, a RING, a B-box type 1 and a B-box type 2, and a coiled-coil region. This protein forms homodimers which associate with microtubules in the cytoplasm. The protein is likely involved in the formation of multiprotein structures acting as anchor points to microtubules. Mutations in this gene have been associated with the X-linked form of Opitz syndrome, which is characterized by midline abnormalities such as cleft lip, laryngeal cleft, heart defects, hypospadias, and agenesis of the corpus callosum. This gene was also the first example of a gene subject to X inactivation in human while escaping it in mouse. Alternative promoter use, alternative splicing and alternative polyadenylation result in multiple transcript variants that have different tissue specificities. [provided by RefSeq, Dec 2016]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.293486).
BS2
High Hemizygotes in GnomAdExome4 at 2 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MID1NM_000381.4 linkuse as main transcriptc.1937A>G p.Lys646Arg missense_variant 10/10 ENST00000317552.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MID1ENST00000317552.9 linkuse as main transcriptc.1937A>G p.Lys646Arg missense_variant 10/101 NM_000381.4 P1O15344-1

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD3 exomes
AF:
0.00000547
AC:
1
AN:
182972
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67624
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000123
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000118
AC:
13
AN:
1098175
Hom.:
0
Cov.:
30
AF XY:
0.00000550
AC XY:
2
AN XY:
363539
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:
0.0000154
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
23
ExAC
AF:
0.00000824
AC:
1

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxMay 19, 2022Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.077
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.63
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.27
T;T;T;T;T;T
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.90
D;.;.;.;.;.
M_CAP
Uncertain
0.13
D
MetaRNN
Benign
0.29
T;T;T;T;T;T
MetaSVM
Benign
-0.79
T
MutationAssessor
Benign
1.3
L;L;L;L;L;L
MutationTaster
Benign
1.0
D;D;D;D;D;D;D
PrimateAI
Uncertain
0.72
T
PROVEAN
Benign
-0.88
N;N;N;N;N;N
REVEL
Benign
0.17
Sift
Benign
0.092
T;T;T;T;T;T
Sift4G
Benign
0.49
T;T;T;T;T;T
Polyphen
0.011
B;B;B;B;B;B
Vest4
0.091
MutPred
0.51
Loss of methylation at K646 (P = 4e-04);Loss of methylation at K646 (P = 4e-04);Loss of methylation at K646 (P = 4e-04);Loss of methylation at K646 (P = 4e-04);Loss of methylation at K646 (P = 4e-04);Loss of methylation at K646 (P = 4e-04);
MVP
0.80
MPC
0.75
ClinPred
0.32
T
GERP RS
5.5
Varity_R
0.60
gMVP
0.53

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.050
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: rs757315836; hg19: chrX-10417475; API