NM_000195.5:c.1472_1487dupCCAGCAGGGGAGGCCC

Variant names:

Variant summary

Our verdict is Pathogenic. The variant received 15 ACMG points: 16P and 1B. PVS1PP5_Very_StrongBS2_Supporting

The NM_000195.5(HPS1):c.1472_1487dupCCAGCAGGGGAGGCCC(p.His497GlnfsTer90) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000052 in 1,614,014 control chromosomes in the GnomAD database, including 3 homozygotes. It is difficult to determine the true allele frequency of this variant because it is of type INS_BIG, and the frequency of such variant types in population databases may be underestimated and unreliable. Variant has been reported in ClinVar as Pathogenic (★★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.00036 ( 1 hom., cov: 32)

Exomes 𝑓: 0.000020 ( 2 hom. )

Consequence

HPS1
NM_000195.5 frameshift

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, multiple submitters, no conflicts P:16O:1

Conservation

PhyloP100: 3.27

Publications

18 publications found

Variant links:

Genes affected

HPS1 (HGNC:5163): (HPS1 biogenesis of lysosomal organelles complex 3 subunit 1) This gene encodes a protein that may play a role in organelle biogenesis associated with melanosomes, platelet dense granules, and lysosomes. The encoded protein is a component of three different protein complexes termed biogenesis of lysosome-related organelles complex (BLOC)-3, BLOC4, and BLOC5. Mutations in this gene are associated with Hermansky-Pudlak syndrome type 1. Alternative splicing results in multiple transcript variants. A pseudogene related to this gene is located on chromosome 22. [provided by RefSeq, Aug 2015]

HPS1 Gene-Disease associations (from GenCC):

Hermansky-Pudlak syndrome 1
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P
Hermansky-Pudlak syndrome with pulmonary fibrosis
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

HPS1 links:

ENSG00000289758 (HGNC:):

ENSG00000289758 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 15 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

PP5

Variant 10-98423797-T-TGGGCCTCCCCTGCTGG is Pathogenic according to our data. Variant chr10-98423797-T-TGGGCCTCCCCTGCTGG is described in ClinVar as Pathogenic. ClinVar VariationId is 5277.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS2

High Homozygotes in GnomAdExome4 at 2 AR geneVariant has number of homozygotes lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000195.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
HPS1	NM_000195.5	MANE Select	c.1472_1487dupCCAGCAGGGGAGGCCC	p.His497GlnfsTer90	frameshift	Exon 15 of 20	NP_000186.2
HPS1	NM_001322476.2		c.1472_1487dupCCAGCAGGGGAGGCCC	p.His497GlnfsTer90	frameshift	Exon 15 of 20	NP_001309405.1	Q92902-1
HPS1	NM_001322477.2		c.1472_1487dupCCAGCAGGGGAGGCCC	p.His497GlnfsTer90	frameshift	Exon 15 of 20	NP_001309406.1	Q92902-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
HPS1	ENST00000361490.9	TSL:1 MANE Select	c.1472_1487dupCCAGCAGGGGAGGCCC	p.His497GlnfsTer90	frameshift	Exon 15 of 20	ENSP00000355310.4	Q92902-1
HPS1	ENST00000467246.5	TSL:1	n.831_846dupCCAGCAGGGGAGGCCC		non_coding_transcript_exon	Exon 14 of 19	ENSP00000514163.1	A0A8V8TP71
ENSG00000289758	ENST00000699159.1		n.831_846dupCCAGCAGGGGAGGCCC		non_coding_transcript_exon	Exon 14 of 24	ENSP00000514167.1	A0A8V8TP71

Frequencies

GnomAD3 genomes

AF:

0.000361

AC:

AN:

152192

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00321

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00239

GnomAD2 exomes

AF:

0.0000279

AC:

AN:

251090

AF XY:

0.0000368

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000174

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000198

AC:

AN:

1461704

Hom.:

Cov.:

AF XY:

0.0000165

AC XY:

AN XY:

727152

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.000604

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53304

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5724

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111994

Other (OTH)

AF:

0.0000331

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.507

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000361

AC:

AN:

152310

Hom.:

Cov.:

AF XY:

0.000349

AC XY:

AN XY:

74470

show subpopulations

African (AFR)

AF:

0.0000240

AC:

AN:

41584

American (AMR)

AF:

0.00320

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5166

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68016

Other (OTH)

AF:

0.00237

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.499

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000843

Hom.:

ClinVar

ClinVar submissions

Significance:Pathogenic

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Hermansky-Pudlak syndrome 1 (8)

not provided (4)

Hermansky-Pudlak syndrome (3)

HPS1-related disorder (1)

Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

PhyloP100

3.3

Mutation Taster

=9/191

disease causing (ClinVar)

(source)

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over