X-10523193-CAAAAAAAA-CAAAAAAAAAAAA

Position:

• chrX-10523193-CAAAAAAAA-CAAAAAAAAAAAA

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS1

The ENST00000317552.9(MID1):​c.661-7_661-6insTTTT variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.000022 (0 hom., 1 hem., cov: 19)
  • Exomes 𝑓: 0.000047 (0 hom. 0 hem.)
• Consequence: MID1 ENST00000317552.9 splice_region, splice_polypyrimidine_tract, intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.00

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]

ACMG classification

Verdict is Likely_benign. Variant got -4 ACMG points.

• BS1: Variant frequency is greater than expected in population afr. gnomad4_exome allele frequency = 0.0000472 (35/740833) while in subpopulation AFR AF= 0.000815 (14/17181). AF 95% confidence interval is 0.000492. There are 0 homozygotes in gnomad4_exome. There are 0 alleles in male gnomad4_exome subpopulation. Median coverage is 0. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MID1	NM_000381.4	c.661-7_661-6insTTTT		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
MID1	ENST00000317552.9	c.661-7_661-6insTTTT		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		1	NM_000381.4	ENSP00000312678	P1

Frequencies

GnomAD3 genomes AF: 0.0000220 AC: 1 AN: 45445 Hom.: 0 Cov.: 19 AF XY: 0.000111 AC XY: 1 AN XY: 9019

Gnomad AFR AF: 0.0000651

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: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.0000472 AC: 35 AN: 740833 Hom.: 0 Cov.: 0 AF XY: 0.00 AC XY: 0 AN XY: 206175

Gnomad4 AFR exome AF: 0.000815

Gnomad4 AMR exome AF: 0.000137

Gnomad4 ASJ exome AF: 0.0000678

Gnomad4 EAS exome AF: 0.0000401

Gnomad4 SAS exome AF: 0.0000544

Gnomad4 FIN exome AF: 0.0000372

Gnomad4 NFE exome AF: 0.0000213

Gnomad4 OTH exome AF: 0.0000298

GnomAD4 genome AF: 0.0000220 AC: 1 AN: 45445 Hom.: 0 Cov.: 19 AF XY: 0.000111 AC XY: 1 AN XY: 9019

Gnomad4 AFR AF: 0.0000651

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs375668839; hg19: chrX-10491233;