chr15-90998713-A-C

Variant names:

• chr15-90998713-A-C
• rs886051554
• NM_018668.5:c.*262T>G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_018668.5(VPS33B):​c.*262T>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000176 in 396,832 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: 32)
  • Exomes 𝑓: 0.000018 (0 hom.)
• Consequence: VPS33B NM_018668.5 3_prime_UTR
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.0130
• Publications: 0 publications found

Genes affected

VPS33B (HGNC:12712): (VPS33B late endosome and lysosome associated) Vesicle mediated protein sorting plays an important role in segregation of intracellular molecules into distinct organelles. Genetic studies in yeast have identified more than 40 vacuolar protein sorting (VPS) genes involved in vesicle transport to vacuoles. This gene is a member of the Sec-1 domain family, and encodes the human ortholog of rat Vps33b which is homologous to the yeast class C Vps33 protein. The mammalian class C vacuolar protein sorting proteins are predominantly associated with late endosomes/lysosomes, and like their yeast counterparts, may mediate vesicle trafficking steps in the endosome/lysosome pathway. Mutations in this gene are associated with arthrogryposis-renal dysfunction-cholestasis syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014]

ENSG00000284946 (HGNC:):

VPS33B-DT (HGNC:51413): (VPS33B divergent transcript)

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.7).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018668.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	VPS33B	NM_018668.5	MANE Select	c.*262T>G		3_prime_UTR	Exon 23 of 23	NP_061138.3
	VPS33B	NM_001289148.1		c.*262T>G		3_prime_UTR	Exon 22 of 22	NP_001276077.1	B7Z1N4
	VPS33B	NM_001289149.1		c.*262T>G		3_prime_UTR	Exon 22 of 22	NP_001276078.1	Q9H267-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	VPS33B	ENST00000333371.8	TSL:1 MANE Select	c.*262T>G		3_prime_UTR	Exon 23 of 23	ENSP00000327650.4	Q9H267-1
	ENSG00000284946	ENST00000643536.1		n.1774+964T>G		intron	N/A	ENSP00000494429.1	A0A2R8YDQ0
	VPS33B	ENST00000853125.1		c.*262T>G		3_prime_UTR	Exon 23 of 23	ENSP00000523184.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.0000176 AC: 7 AN: 396832 Hom.: 0 Cov.: 3 AF XY: 0.0000190 AC XY: 4 AN XY: 210952

African (AFR) AF: 0.00 AC: 0 AN: 11342

American (AMR) AF: 0.00 AC: 0 AN: 18010

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 12250

East Asian (EAS) AF: 0.00 AC: 0 AN: 25710

South Asian (SAS) AF: 0.00 AC: 0 AN: 45274

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 23722

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 1736

European-Non Finnish (NFE) AF: 0.0000254 AC: 6 AN: 236074

Other (OTH) AF: 0.0000440 AC: 1 AN: 22714

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Arthrogryposis, renal dysfunction, and cholestasis 1 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.70
CADD	Benign	5.3
DANN	Benign	0.71
PhyloP100		-0.013
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.0

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

Other links and lift over

dbSNP: rs886051554; hg19: chr15-91541943;