chr5-14664832-C-T

Position:

• chr5-14664832-C-T

Variant summary

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

The NM_138348.6(OTULIN):​c.7C>T​(p.Arg3Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000469 in 1,066,458 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 35)
  • Exomes 𝑓: 0.0000047 (0 hom.)
• Consequence: OTULIN NM_138348.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.01

Genes affected

OTULIN (HGNC:25118): (OTU deubiquitinase with linear linkage specificity) This gene encodes a member of the peptidase C65 family of ubiquitin isopeptidases. Members of this family remove ubiquitin from proteins. The encoded enzyme specifically recognizes and removes M1(Met1)-linked, or linear, ubiquitin chains from protein substrates. Linear ubiquitin chains are known to regulate the NF-kappa B signaling pathway in the context of immunity and inflammation. Mutations in this gene cause a potentially fatal autoinflammatory syndrome in human patients. [provided by RefSeq, Sep 2016]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.30092877).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
OTULIN	NM_138348.6	c.7C>T	p.Arg3Trp	missense_variant	1/7	ENST00000284274.5	NP_612357.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
OTULIN	ENST00000284274.5	c.7C>T	p.Arg3Trp	missense_variant	1/7	1	NM_138348.6	ENSP00000284274	P1
OTULIN	ENST00000507335.1	n.101C>T		non_coding_transcript_exon_variant	1/2	2
OTULIN	ENST00000697367.1	c.7C>T	p.Arg3Trp	missense_variant, NMD_transcript_variant	1/5			ENSP00000513279
OTULIN	ENST00000503023.2	c.7C>T	p.Arg3Trp	missense_variant, NMD_transcript_variant	1/6	5		ENSP00000427016

Frequencies

GnomAD3 genomes Cov.: 35

GnomAD4 exome AF: 0.00000469 AC: 5 AN: 1066458 Hom.: 0 Cov.: 30 AF XY: 0.00000592 AC XY: 3 AN XY: 506560

Gnomad4 AFR exome AF: 0.000178

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: 0.00000110

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 35

Bravo AF: 0.0000189

ExAC AF: 0.00000993 AC: 1

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

Oct 24, 2022

Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). 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 variant has not been reported in the literature in individuals affected with OTULIN-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 3 of the OTULIN protein (p.Arg3Trp). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Benign	-0.098	T
BayesDel_noAF	Benign	-0.38
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.027	T
Eigen	Benign	0.13
Eigen_PC	Benign	0.11
FATHMM_MKL	Benign	0.62	D
LIST_S2	Benign	0.72	T
M_CAP	Pathogenic	0.36	D
MetaRNN	Benign	0.30	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.8	L
MutationTaster	Benign	0.66	N
PrimateAI	Pathogenic	0.89	D
PROVEAN	Benign	-1.4	N
REVEL	Benign	0.10
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.024	D
Polyphen		0.99	D
Vest4		0.31
MutPred		0.29		Gain of catalytic residue at M6 (P = 0.0153);
MVP		0.12
MPC		1.6
ClinPred		0.85	D
GERP RS		3.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.15
gMVP		0.28

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: rs770748271; hg19: chr5-14664941;