chr6-8063817-C-T

Position:

• chr6-8063817-C-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_201280.3(BLOC1S5):​c.112+448G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.726 in 152,122 control chromosomes in the GnomAD database, including 40,834 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.73 (40834 hom., cov: 32)
• Consequence: BLOC1S5 NM_201280.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.390

Genes affected

BLOC1S5 (HGNC:18561): (biogenesis of lysosomal organelles complex 1 subunit 5) This gene encodes a component of BLOC-1 (biogenesis of lysosome-related organelles complex 1). Components of this complex are involved in the biogenesis of organelles such as melanosomes and platelet-dense granules. A mouse model for Hermansky-Pudlak Syndrome is mutated in the murine version of this gene. Alternative splicing results in multiple transcript variants. Read-through transcription exists between this gene and the upstream EEF1E1 (eukaryotic translation elongation factor 1 epsilon 1) gene, as well as with the downstream TXNDC5 (thioredoxin domain containing 5) gene. [provided by RefSeq, Dec 2010]

BLOC1S5-TXNDC5 (HGNC:):

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.68).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.973 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
BLOC1S5	NM_201280.3	c.112+448G>A		intron_variant		ENST00000397457.7
BLOC1S5-TXNDC5	NR_037616.1	n.150+448G>A		intron_variant, non_coding_transcript_variant
EEF1E1-BLOC1S5	NR_037618.1	n.459-1201G>A		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
BLOC1S5	ENST00000397457.7	c.112+448G>A		intron_variant		1	NM_201280.3	P1
BLOC1S5	ENST00000244777.6	c.112+448G>A		intron_variant, NMD_transcript_variant		1
BLOC1S5	ENST00000627748.2	c.112+448G>A		intron_variant, NMD_transcript_variant		1
BLOC1S5	ENST00000543936.7	c.112+448G>A		intron_variant		2

Frequencies

GnomAD3 genomes AF: 0.726 AC: 110380 AN: 152004 Hom.: 40793 Cov.: 32

Gnomad AFR AF: 0.809

Gnomad AMI AF: 0.399

Gnomad AMR AF: 0.731

Gnomad ASJ AF: 0.582

Gnomad EAS AF: 0.996

Gnomad SAS AF: 0.779

Gnomad FIN AF: 0.719

Gnomad MID AF: 0.526

Gnomad NFE AF: 0.666

Gnomad OTH AF: 0.667

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.726 AC: 110487 AN: 152122 Hom.: 40834 Cov.: 32 AF XY: 0.730 AC XY: 54267 AN XY: 74366

Gnomad4 AFR AF: 0.809

Gnomad4 AMR AF: 0.732

Gnomad4 ASJ AF: 0.582

Gnomad4 EAS AF: 0.996

Gnomad4 SAS AF: 0.778

Gnomad4 FIN AF: 0.719

Gnomad4 NFE AF: 0.666

Gnomad4 OTH AF: 0.669

Alfa AF: 0.691 Hom.: 6814

Bravo AF: 0.730

Asia WGS AF: 0.887 AC: 3081 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.68
CADD	Benign	3.4
DANN	Benign	0.79

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		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

Other links and lift over

dbSNP: rs2815153; hg19: chr6-8064050;