X-10523193-CAAAA-C

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BS1BS2

The ENST00000317552.9(MID1):​c.661-10_661-7del variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0009 in 777,779 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 8 hemizygotes in GnomAD. 1/1 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., 0 hem., cov: 19)
Exomes 𝑓: 0.00095 ( 0 hom. 8 hem. )

Consequence

MID1
ENST00000317552.9 splice_region, splice_polypyrimidine_tract, intron

Scores

Not classified

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.117
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 Benign. Variant got -8 ACMG points.

BS1
Variant frequency is greater than expected in population afr. gnomad4_exome allele frequency = 0.000949 (695/732343) while in subpopulation AFR AF= 0.00111 (19/17066). AF 95% confidence interval is 0.000982. There are 0 homozygotes in gnomad4_exome. There are 8 alleles in male gnomad4_exome subpopulation. This position pass quality control queck.
BS2
High Hemizygotes in GnomAdExome4 at 8 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MID1NM_000381.4 linkuse as main transcriptc.661-10_661-7del splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000317552.9 NP_000372.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MID1ENST00000317552.9 linkuse as main transcriptc.661-10_661-7del splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_000381.4 ENSP00000312678 P1O15344-1

Frequencies

GnomAD3 genomes
AF:
0.000110
AC:
5
AN:
45436
Hom.:
0
Cov.:
19
AF XY:
0.00
AC XY:
0
AN XY:
9014
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00133
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000143
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.000949
AC:
695
AN:
732343
Hom.:
0
AF XY:
0.0000395
AC XY:
8
AN XY:
202537
show subpopulations
Gnomad4 AFR exome
AF:
0.00111
Gnomad4 AMR exome
AF:
0.00111
Gnomad4 ASJ exome
AF:
0.000482
Gnomad4 EAS exome
AF:
0.000162
Gnomad4 SAS exome
AF:
0.000194
Gnomad4 FIN exome
AF:
0.000490
Gnomad4 NFE exome
AF:
0.00105
Gnomad4 OTH exome
AF:
0.000995
GnomAD4 genome
AF:
0.000110
AC:
5
AN:
45436
Hom.:
0
Cov.:
19
AF XY:
0.00
AC XY:
0
AN XY:
9014
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00133
Gnomad4 NFE
AF:
0.000143
Gnomad4 OTH
AF:
0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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: rs375668839; hg19: chrX-10491233; API