rs281865101

Variant names:

• chr11-18305438-T-TG
• rs281865101
• NM_181507.2:c.879dupC

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PVS1 PM2 PP5_Moderate

The NM_181507.2(HPS5):​c.879dupC​(p.Lys294GlnfsTer6) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000206 in 1,455,752 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: HPS5 NM_181507.2 frameshift
• Clinical Significance: Pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 0.741
• Publications: 3 publications found

Genes affected

HPS5 (HGNC:17022): (HPS5 biogenesis of lysosomal organelles complex 2 subunit 2) This gene encodes a protein that may play a role in organelle biogenesis associated with melanosomes, platelet dense granules, and lysosomes. This protein interacts with Hermansky-Pudlak syndrome 6 protein and may interact with the cytoplasmic domain of integrin, alpha-3. Mutations in this gene are associated with Hermansky-Pudlak syndrome type 5. Multiple transcript variants encoding two distinct isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]

HPS5 Gene-Disease associations (from GenCC):

• Hermansky-Pudlak syndrome 5

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P
• Hermansky-Pudlak syndrome without pulmonary fibrosis

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Pathogenic. The variant received 12 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 11-18305438-T-TG is Pathogenic according to our data. Variant chr11-18305438-T-TG is described in ClinVar as Pathogenic. ClinVar VariationId is 21822.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_181507.2. 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
	HPS5	NM_181507.2	MANE Select	c.879dupC	p.Lys294GlnfsTer6	frameshift	Exon 8 of 23	NP_852608.1	Q9UPZ3-1
	HPS5	NM_001440902.1		c.879dupC	p.Lys294GlnfsTer6	frameshift	Exon 8 of 24	NP_001427831.1
	HPS5	NM_001440903.1		c.879dupC	p.Lys294GlnfsTer6	frameshift	Exon 8 of 24	NP_001427832.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HPS5	ENST00000349215.8	TSL:1 MANE Select	c.879dupC	p.Lys294GlnfsTer6	frameshift	Exon 8 of 23	ENSP00000265967.5	Q9UPZ3-1
	HPS5	ENST00000396253.7	TSL:1	c.537dupC	p.Lys180GlnfsTer6	frameshift	Exon 7 of 22	ENSP00000379552.3	Q9UPZ3-2
	HPS5	ENST00000438420.6	TSL:1	c.537dupC	p.Lys180GlnfsTer6	frameshift	Exon 7 of 22	ENSP00000399590.2	Q9UPZ3-2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000206 AC: 3 AN: 1455752 Hom.: 0 Cov.: 28 AF XY: 0.00000138 AC XY: 1 AN XY: 724652

African (AFR) AF: 0.00 AC: 0 AN: 33334

American (AMR) AF: 0.00 AC: 0 AN: 44702

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26086

East Asian (EAS) AF: 0.00 AC: 0 AN: 39606

South Asian (SAS) AF: 0.00 AC: 0 AN: 86094

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53332

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5754

European-Non Finnish (NFE) AF: 0.00000271 AC: 3 AN: 1106686

Other (OTH) AF: 0.00 AC: 0 AN: 60158

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions as Germline

Significance: Pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	Hermansky-Pudlak syndrome 5 (1)
1	-	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.74
Mutation Taster		=0/200	disease causing (ClinVar)

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: rs281865101; hg19: chr11-18326985;