X-53562114-ATCATCTTCC-ATCATCTTCCTCATCTTCC

Variant names:

• chrX-53562114-A-ATCATCTTCC
• rs781889045
• NM_031407.7:c.7326_7334dupGGAAGATGA

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_031407.7(HUWE1):​c.7326_7334dupGGAAGATGA​(p.Glu2442_Asp2444dup) variant causes a disruptive inframe insertion change. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 22)
• Consequence: HUWE1 NM_031407.7 disruptive_inframe_insertion
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.78
• Publications: 0 publications found

Genes affected

HUWE1 (HGNC:30892): (HECT, UBA and WWE domain containing E3 ubiquitin protein ligase 1) This gene encodes a protein containing a C-terminal HECT (E6AP type E3 ubiquitin protein ligase) domain that functions as an E3 ubiquitin ligase. The encoded protein is required for the ubiquitination and subsequent degradation of the anti-apoptotic protein Mcl1 (myeloid cell leukemia sequence 1 (BCL2-related)). This protein also ubiquitinates the p53 tumor suppressor, core histones, and DNA polymerase beta. Mutations in this gene are associated with Turner type X-linked syndromic cognitive disability. [provided by RefSeq, Aug 2013]

HUWE1 Gene-Disease associations (from GenCC):

• intellectual disability, X-linked syndromic, Turner type

  Inheritance: XL Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Illumina, Ambry Genetics, G2P
• non-syndromic X-linked intellectual disability

  Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
• syndromic intellectual disability

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HUWE1	NM_031407.7	c.7326_7334dupGGAAGATGA	p.Glu2442_Asp2444dup	disruptive_inframe_insertion	Exon 54 of 84	ENST00000262854.11	NP_113584.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HUWE1	ENST00000262854.11	c.7326_7334dupGGAAGATGA	p.Glu2442_Asp2444dup	disruptive_inframe_insertion	Exon 54 of 84	1	NM_031407.7	ENSP00000262854.6
HUWE1	ENST00000342160.7	c.7326_7334dupGGAAGATGA	p.Glu2442_Asp2444dup	disruptive_inframe_insertion	Exon 53 of 83	5		ENSP00000340648.3
HUWE1	ENST00000612484.4	c.7299_7307dupGGAAGATGA	p.Glu2433_Asp2435dup	disruptive_inframe_insertion	Exon 51 of 81	5		ENSP00000479451.1
HUWE1	ENST00000704099.1	c.7323_7331dupGGAAGATGA	p.Glu2441_Asp2443dup	disruptive_inframe_insertion	Exon 53 of 83			ENSP00000515693.1

Frequencies

GnomAD3 genomes Cov.: 22

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 22

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
PhyloP100		6.8

Splicing

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

Other links and lift over

dbSNP: rs781889045; hg19: chrX-53589075;