X-53534071-T-A

Position:

• chrX-53534071-T-A

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP2

The NM_031407.7(HUWE1):​c.12958A>T​(p.Ile4320Phe) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 22)
• Consequence: HUWE1 NM_031407.7 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.10

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), HUWE1. . Gene score misZ 8.8732 (greater than the threshold 3.09). GenCC has associacion of gene with syndromic intellectual disability, intellectual disability, X-linked syndromic, Turner type, non-syndromic X-linked intellectual disability.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HUWE1	NM_031407.7	c.12958A>T	p.Ile4320Phe	missense_variant	83/84	ENST00000262854.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HUWE1	ENST00000262854.11	c.12958A>T	p.Ile4320Phe	missense_variant	83/84	1	NM_031407.7	P2

Frequencies

GnomAD3 genomes Cov.: 22

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 22

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Mar 09, 2018

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. This sequence change replaces isoleucine with phenylalanine at codon 4320 of the HUWE1 protein (p.Ile4320Phe). The isoleucine residue is highly conserved and there is a small physicochemical difference between isoleucine and phenylalanine. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with HUWE1-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; Align-GVGD: "Class C0"). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.29
BayesDel_addAF	Benign	-0.078	T
BayesDel_noAF	Benign	-0.35
CADD	Uncertain	24
DANN	Benign	0.82
DEOGEN2	Benign	0.34	.;T;T
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.96	D;.;D
M_CAP	Uncertain	0.16	D
MetaRNN	Uncertain	0.59	D;D;D
MetaSVM	Benign	-0.83	T
MutationAssessor	Benign	1.6	.;L;L
MutationTaster	Benign	1.0	D;D
PrimateAI	Pathogenic	0.88	D
PROVEAN	Uncertain	-2.7	.;D;D
REVEL	Uncertain	0.30
Sift	Uncertain	0.0070	.;D;D
Sift4G	Uncertain	0.020	D;D;D
Polyphen		0.91	.;P;P
Vest4		0.80
MutPred		0.55		.;Loss of ubiquitination at K4322 (P = 0.1435);Loss of ubiquitination at K4322 (P = 0.1435);
MVP		0.80
MPC		2.0
ClinPred		0.91	D
GERP RS		5.4
Varity_R		0.87
gMVP		0.93

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		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

Other links and lift over

dbSNP: rs2060890993; hg19: chrX-53561032;