Variant chr15-45587490-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_012388.4(BLOC1S6):c.47C>T(p.Pro16Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000631 in 1,585,462 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

BLOC1S6
NM_012388.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.964

Variant links:

Genes affected

BLOC1S6 (HGNC:8549): (biogenesis of lysosomal organelles complex 1 subunit 6) The protein encoded by this gene may play a role in intracellular vesicle trafficking. It interacts with Syntaxin 13 which mediates intracellular membrane fusion. Mutations in this gene cause symptoms associated with Hermansky-Pudlak syndrome-9. Alternative splicing results in multiple transcript variants. A pseudogene related to this gene is located on the X chromosome. [provided by RefSeq, Aug 2015]

BLOC1S6 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.061819255).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
BLOC1S6	NM_012388.4 linkuse as main transcript	c.47C>T	p.Pro16Leu	missense_variant	1/5	ENST00000220531.9	NP_036520.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
BLOC1S6	ENST00000220531.9 linkuse as main transcript	c.47C>T	p.Pro16Leu	missense_variant	1/5	1	NM_012388.4	ENSP00000220531	P1	Q9UL45-1

Frequencies

GnomAD3 genomes

AF:

0.0000525

AC:

AN:

152270

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000964

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.00

GnomAD4 exome

AF:

0.00000140

AC:

AN:

1433192

Hom.:

Cov.:

AF XY:

0.00000141

AC XY:

AN XY:

710434

show subpopulations

Gnomad4 AFR exome

AF:

0.0000305

Gnomad4 AMR exome

AF:

0.0000244

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000525

AC:

AN:

152270

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74392

show subpopulations

Gnomad4 AFR

AF:

0.0000964

Gnomad4 AMR

AF:

0.000262

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.0000453

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Hermansky-Pudlak syndrome 9

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	New York Genome Center	Mar 12, 2021	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jul 18, 2022	This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 16 of the BLOC1S6 protein (p.Pro16Leu). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with BLOC1S6-related conditions. ClinVar contains an entry for this variant (Variation ID: 1042331). 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.075

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.40

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.26

T;T;T

Eigen

Benign

-0.89

Eigen_PC

Benign

-0.89

FATHMM_MKL

Benign

0.058

LIST_S2

Benign

0.75

T;T;T

M_CAP

Benign

0.0028

MetaRNN

Benign

0.062

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.0

M;.;.

MutationTaster

Benign

1.0

N;N;N;N;N

PrimateAI

Benign

0.43

PROVEAN

Benign

-0.84

N;D;N

REVEL

Benign

0.050

Sift

Benign

0.14

T;T;D

Sift4G

Benign

0.46

T;T;D

Polyphen

0.0

B;.;.

Vest4

0.11

MVP

0.12

MPC

0.41

ClinPred

0.069

GERP RS

1.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.036

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over