chr2-233477415-T-A

Position:

• chr2-233477415-T-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001365479.2(USP40):​c.3688A>T​(p.Ile1230Phe) 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: 34)
• Consequence: USP40 NM_001365479.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.82

Genes affected

USP40 (HGNC:20069): (ubiquitin specific peptidase 40) Modification of cellular proteins by ubiquitin is an essential regulatory mechanism controlled by the coordinated action of multiple ubiquitin-conjugating and deubiquitinating enzymes. USP40 belongs to a large family of cysteine proteases that function as deubiquitinating enzymes (Quesada et al., 2004 [PubMed 14715245]).[supplied by OMIM, Mar 2008]

USP40 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
USP40	NM_001365479.2	c.3688A>T	p.Ile1230Phe	missense_variant	32/32	ENST00000678225.2	NP_001352408.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
USP40	ENST00000678225.2	c.3688A>T	p.Ile1230Phe	missense_variant	32/32		NM_001365479.2	ENSP00000502952.1
USP40	ENST00000427112.6	c.3685A>T	p.Ile1229Phe	missense_variant	31/31	1		ENSP00000387898.2
USP40	ENST00000483519.5	n.833A>T		non_coding_transcript_exon_variant	6/6	1
USP40	ENST00000251722.10	c.3685A>T	p.Ile1229Phe	missense_variant	32/32	5		ENSP00000251722.6

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 34

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 04, 2022

The c.3721A>T (p.I1241F) alteration is located in exon 30 (coding exon 30) of the USP40 gene. This alteration results from a A to T substitution at nucleotide position 3721, causing the isoleucine (I) at amino acid position 1241 to be replaced by a phenylalanine (F). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.49
BayesDel_addAF	Benign	-0.031	T
BayesDel_noAF	Benign	-0.28
CADD	Pathogenic	26
DANN	Uncertain	0.99
DEOGEN2	Benign	0.093	.;T;T
Eigen	Uncertain	0.59
Eigen_PC	Uncertain	0.51
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Uncertain	0.89	D;.;D
M_CAP	Benign	0.060	D
MetaRNN	Uncertain	0.55	D;D;D
MetaSVM	Benign	-1.2	T
MutationAssessor	Uncertain	2.8	.;M;M
PrimateAI	Uncertain	0.63	T
PROVEAN	Benign	-1.8	N;N;N
REVEL	Benign	0.28
Sift	Pathogenic	0.0	D;D;D
Sift4G	Pathogenic	0.0	D;D;D
Polyphen		1.0	D;.;.
Vest4		0.94
MutPred		0.28		Loss of sheet (P = 0.0181);.;.;
MVP		0.39
MPC		0.33
ClinPred		0.99	D
GERP RS		4.9
Varity_R		0.26
gMVP		0.47

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr2-234386061;