15-50449447-C-G

Variant names:

• chr15-50449447-C-G
• NM_005154.5:c.297C>G

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2 BP4_Moderate BP7 BS2

The NM_005154.5(USP8):​c.297C>G​(p.Val99Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000346 in 1,444,008 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000035 (0 hom.)
• Consequence: USP8 NM_005154.5 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.338

Genes affected

USP8 (HGNC:12631): (ubiquitin specific peptidase 8) This gene encodes a protein that belongs to the ubiquitin-specific processing protease family of proteins. The encoded protein is thought to regulate the morphology of the endosome by ubiquitination of proteins on this organelle and is involved in cargo sorting and membrane trafficking at the early endosome stage. This protein is required for the cell to enter the S phase of the cell cycle and also functions as a positive regulator in the Hedgehog signaling pathway in development. Pseudogenes of this gene are present on chromosomes 2 and 6. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Sep 2013]

ACMG classification

Verdict is Likely_benign. Variant got -5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.17792985).
• BP7: Synonymous conserved (PhyloP=0.338 with no splicing effect.
• BS2: High AC in GnomAdExome4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
USP8	NM_005154.5	c.297C>G	p.Val99Val	synonymous_variant	Exon 4 of 20	ENST00000307179.9	NP_005145.3
USP8	NM_001128610.3	c.297C>G	p.Val99Val	synonymous_variant	Exon 4 of 20		NP_001122082.1
USP8	NM_001283049.2	c.105-9553C>G		intron_variant	Intron 2 of 16		NP_001269978.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
USP8	ENST00000307179.9	c.297C>G	p.Val99Val	synonymous_variant	Exon 4 of 20	1	NM_005154.5	ENSP00000302239.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000346 AC: 5 AN: 1444008 Hom.: 0 Cov.: 29 AF XY: 0.00000418 AC XY: 3 AN XY: 718082

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: 0.00000454

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Benign	-0.061	T
BayesDel_noAF	Benign	-0.33
CADD	Benign	4.4
DANN	Benign	0.88
DEOGEN2	Benign	0.010	T
FATHMM_MKL	Uncertain	0.77	D
LIST_S2	Benign	0.35	T
MetaRNN	Benign	0.18	T
Sift4G	Benign	0.12	T
Vest4		0.38
MVP		0.70
GERP RS		0.92

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: chr15-50741644;