10-102065929-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_024747.6(HPS6):c.455C>T(p.Ser152Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000048 in 1,564,072 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000047 ( 0 hom. )

Consequence

HPS6
NM_024747.6 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: -0.529

Publications

1 publications found

Variant links:

Genes affected

HPS6 (HGNC:18817): (HPS6 biogenesis of lysosomal organelles complex 2 subunit 3) This intronless 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 5 protein. Mutations in this gene are associated with Hermansky-Pudlak syndrome type 6. [provided by RefSeq, Jul 2008]

HPS6 Gene-Disease associations (from GenCC):

Hermansky-Pudlak syndrome 6
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, G2P, Labcorp Genetics (formerly Invitae)
Hermansky-Pudlak syndrome without pulmonary fibrosis
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

HPS6 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.03349632).

BP6

Variant 10-102065929-C-T is Benign according to our data. Variant chr10-102065929-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 163682.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HPS6	NM_024747.6 link	c.455C>T	p.Ser152Leu	missense_variant	Exon 1 of 1	ENST00000299238.7	NP_079023.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HPS6	ENST00000299238.7 link	c.455C>T	p.Ser152Leu	missense_variant	Exon 1 of 1	6	NM_024747.6	ENSP00000299238.5		Q86YV9

Frequencies

GnomAD3 genomes

AF:

0.0000591

AC:

AN:

152156

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.000132

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000298

AC:

AN:

167950

AF XY:

0.0000320

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000690

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000467

AC:

AN:

1411800

Hom.:

Cov.:

AF XY:

0.0000471

AC XY:

AN XY:

699984

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32774

American (AMR)

AF:

0.00

AC:

AN:

37992

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25504

East Asian (EAS)

AF:

0.00

AC:

AN:

37542

South Asian (SAS)

AF:

0.00

AC:

AN:

82348

European-Finnish (FIN)

AF:

0.00

AC:

AN:

35090

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5156

European-Non Finnish (NFE)

AF:

0.0000593

AC:

AN:

1096474

Other (OTH)

AF:

0.0000170

AC:

AN:

58920

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.505

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:

0.0000591

AC:

AN:

152272

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74452

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41566

American (AMR)

AF:

0.00

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5168

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.000132

AC:

AN:

67996

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

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:

0.00

Hom.:

Bravo

AF:

0.0000264

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000133

AC:

ExAC

AF:

0.0000348

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Sep 09, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces serine with leucine at codon 152 of the HPS6 protein (p.Ser152Leu). The serine residue is weakly conserved and there is a large physicochemical difference between serine and leucine. This variant is present in population databases (rs369112226, ExAC 0.02%). This variant has not been reported in the literature in individuals affected with HPS6-related conditions. ClinVar contains an entry for this variant (Variation ID: 163682). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The leucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

not specified

Benign:1

Dec 11, 2013

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Ser152Leu in exon 1 of HPS6: This variant has been identified in 0.01% (1/7512) of European American chromosomes by the NHLBI Exome Sequencing Project (http://e vs.gs.washington.edu/EVS). While this frequency does not rule out a role in dise ase, serine (Ser) at position 152 is poorly conserved in evolution (several mamm als including primates) have a Leucine (Leu) at this position, suggesting that t his change can be tolerated. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.072

BayesDel_addAF

Benign

-0.45

BayesDel_noAF

Benign

-0.70

CADD

Benign

0.74

(source)

DANN

Benign

0.83

DEOGEN2

Benign

0.086

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.0049

LIST_S2

Benign

0.44

M_CAP

Benign

0.0013

MetaRNN

Benign

0.033

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-1.4

PhyloP100

-0.53

PrimateAI

Benign

0.35

PROVEAN

Benign

-0.26

REVEL

Benign

0.020

Sift

Benign

0.39

Sift4G

Benign

0.63

Polyphen

0.0

Vest4

0.038

MVP

0.081

MPC

0.42

ClinPred

0.056

GERP RS

-3.3

Varity_R

0.041

gMVP

0.15

Mutation Taster

=98/2

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over