rs370370639

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 2P and 16B. PM2BP4_StrongBP6_Very_StrongBS1

The NM_012388.4(BLOC1S6):​c.82+10A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000423 in 1,565,910 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0022 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00024 ( 1 hom. )

Consequence

BLOC1S6
NM_012388.4 intron

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.775
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.76).
BP6
Variant 15-45587535-A-G is Benign according to our data. Variant chr15-45587535-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 316224.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr15-45587535-A-G is described in Lovd as [Benign]. Variant chr15-45587535-A-G is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00216 (329/152244) while in subpopulation AFR AF= 0.00756 (314/41556). AF 95% confidence interval is 0.00687. There are 0 homozygotes in gnomad4. There are 167 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
BLOC1S6NM_012388.4 linkuse as main transcriptc.82+10A>G intron_variant ENST00000220531.9 NP_036520.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
BLOC1S6ENST00000220531.9 linkuse as main transcriptc.82+10A>G intron_variant 1 NM_012388.4 ENSP00000220531 P1Q9UL45-1

Frequencies

GnomAD3 genomes
AF:
0.00216
AC:
329
AN:
152126
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00758
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000720
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:
0.0000441
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000586
AC:
102
AN:
174058
Hom.:
0
AF XY:
0.000553
AC XY:
52
AN XY:
94036
show subpopulations
Gnomad AFR exome
AF:
0.00942
Gnomad AMR exome
AF:
0.000403
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000406
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000214
GnomAD4 exome
AF:
0.000236
AC:
334
AN:
1413666
Hom.:
1
Cov.:
30
AF XY:
0.000206
AC XY:
144
AN XY:
699316
show subpopulations
Gnomad4 AFR exome
AF:
0.00845
Gnomad4 AMR exome
AF:
0.000491
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000123
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000643
Gnomad4 OTH exome
AF:
0.000581
GnomAD4 genome
AF:
0.00216
AC:
329
AN:
152244
Hom.:
0
Cov.:
33
AF XY:
0.00224
AC XY:
167
AN XY:
74446
show subpopulations
Gnomad4 AFR
AF:
0.00756
Gnomad4 AMR
AF:
0.000719
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.00137
Hom.:
0
Bravo
AF:
0.00265

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Hermansky-Pudlak syndrome 9 Benign:2
Likely benign, criteria provided, single submitterclinical testingGenome Diagnostics Laboratory, University Medical Center UtrechtOct 30, 2017- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 29, 2024- -
not specified Benign:1
Benign, no assertion criteria providedclinical testingClinical Genetics, Academic Medical Center-- -
BLOC1S6-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJul 11, 2022This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.76
CADD
Benign
1.7
DANN
Benign
0.69

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.

Other links and lift over

dbSNP: rs370370639; hg19: chr15-45879733; API