rs201226547

Positions:

• chrX-53585071-T-A

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2 PP2 BP4 BP6

The NM_031407.7(HUWE1):​c.4942A>T​(p.Ser1648Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000364 in 1,098,204 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: not found (cov: 23)
  • Exomes 𝑓: 0.0000036 (0 hom. 0 hem.)
• Consequence: HUWE1 NM_031407.7 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:1
• Conservation: PhyloP100: 5.69

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 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, HUWE1
• BP4: Computational evidence support a benign effect (MetaRNN=0.3284924).
• BP6: Variant X-53585071-T-A is Benign according to our data. Variant chrX-53585071-T-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 375715.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=1}.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HUWE1	NM_031407.7	c.4942A>T	p.Ser1648Cys	missense_variant	40/84	ENST00000262854.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HUWE1	ENST00000262854.11	c.4942A>T	p.Ser1648Cys	missense_variant	40/84	1	NM_031407.7	P2

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome AF: 0.00000364 AC: 4 AN: 1098204 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 363558

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: 0.00000475

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 23

Bravo AF: 0.0000151

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:1

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Jul 13, 2023

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 27535533) -

Intellectual disability, X-linked syndromic, Turner type Benign:1

Benign, criteria provided, single submitter

clinical testing

Center for Medical Genetics and Molecular Medicine, Haukeland University Hospital

Apr 27, 2017

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.19
BayesDel_addAF	Uncertain	0.15	D
BayesDel_noAF	Uncertain	-0.020
CADD	Benign	22
DANN	Benign	0.97
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.92	D;.;D
M_CAP	Uncertain	0.091	D
MetaRNN	Benign	0.33	T;T;T
MetaSVM	Benign	-1.0	T
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.76	T
Sift4G	Benign	0.11	T;T;T
Polyphen		0.070	.;B;B
Vest4		0.43
MVP		0.93
MPC		1.3
ClinPred		0.56	D
GERP RS		5.6
Varity_R		0.39
gMVP		0.95

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

Other links and lift over

dbSNP: rs201226547; hg19: chrX-53612031;