dbSNP rs576260502: HPS1:p.Ala684Ala (chr10-98417615-G-A) – ACMG Classification: Benign (-21 pts)

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_000195.5(HPS1):c.2052C>T(p.Ala684Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000506 in 1,612,924 control chromosomes in the GnomAD database, including 10 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. A684A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00022 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00054 ( 9 hom. )

Consequence

HPS1
NM_000195.5 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: -0.249

Publications

2 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: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.59).

BP6

Variant 10-98417615-G-A is Benign according to our data. Variant chr10-98417615-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 211148.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-0.249 with no splicing effect.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000217 (33/152254) while in subpopulation SAS AF = 0.00621 (30/4828). AF 95% confidence interval is 0.00447. There are 1 homozygotes in GnomAd4. There are 20 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 9 AR gene

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.2052C>T	p.Ala684Ala	synonymous	Exon 20 of 20	NP_000186.2
HPS1	NM_001322476.2		c.2052C>T	p.Ala684Ala	synonymous	Exon 20 of 20	NP_001309405.1	Q92902-1
HPS1	NM_001322477.2		c.2052C>T	p.Ala684Ala	synonymous	Exon 20 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.2052C>T	p.Ala684Ala	synonymous	Exon 20 of 20	ENSP00000355310.4	Q92902-1
HPS1	ENST00000467246.5	TSL:1	n.*1411C>T		non_coding_transcript_exon	Exon 19 of 19	ENSP00000514163.1	A0A8V8TP71
HPS1	ENST00000467246.5	TSL:1	n.*1411C>T		3_prime_UTR	Exon 19 of 19	ENSP00000514163.1	A0A8V8TP71

Frequencies

GnomAD3 genomes

AF:

0.000217

AC:

AN:

152136

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00621

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00110

AC:

274

AN:

248284

AF XY:

0.00147

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000545

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000359

Gnomad OTH exome

AF:

0.000496

GnomAD4 exome

AF:

0.000536

AC:

783

AN:

1460670

Hom.:

Cov.:

AF XY:

0.000800

AC XY:

581

AN XY:

726612

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33476

American (AMR)

AF:

0.00

AC:

AN:

44694

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26110

East Asian (EAS)

AF:

0.0000504

AC:

AN:

39692

South Asian (SAS)

AF:

0.00851

AC:

734

AN:

86216

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52860

Middle Eastern (MID)

AF:

0.000360

AC:

AN:

5556

European-Non Finnish (NFE)

AF:

0.0000153

AC:

AN:

1111746

Other (OTH)

AF:

0.000464

AC:

AN:

60320

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.505

Heterozygous variant carriers

122

162

203

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<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:

0.000217

AC:

AN:

152254

Hom.:

Cov.:

AF XY:

0.000269

AC XY:

AN XY:

74448

show subpopulations

African (AFR)

AF:

0.0000481

AC:

AN:

41556

American (AMR)

AF:

0.00

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5158

South Asian (SAS)

AF:

0.00621

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67996

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.493

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:

0.0000755

Hom.:

Bravo

AF:

0.0000831

Asia WGS

AF:

0.00577

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Hermansky-Pudlak syndrome 1 (2)

not provided (2)

not specified (2)

Hermansky-Pudlak syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.59

CADD

Benign

6.8

(source)

DANN

Benign

0.87

PhyloP100

-0.25

Mutation Taster

=100/0

polymorphism

(source)

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

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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