6-8064269-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_201280.3(BLOC1S5):ā€‹c.108C>Gā€‹(p.Ile36Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,612,892 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000026 ( 0 hom., cov: 33)
Exomes š‘“: 0.0000027 ( 0 hom. )

Consequence

BLOC1S5
NM_201280.3 missense

Scores

8
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.733
Variant links:
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
BLOC1S5NM_201280.3 linkuse as main transcriptc.108C>G p.Ile36Met missense_variant 1/5 ENST00000397457.7
BLOC1S5-TXNDC5NR_037616.1 linkuse as main transcriptn.146C>G non_coding_transcript_exon_variant 1/13
EEF1E1-BLOC1S5NR_037618.1 linkuse as main transcriptn.459-1653C>G intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
BLOC1S5ENST00000397457.7 linkuse as main transcriptc.108C>G p.Ile36Met missense_variant 1/51 NM_201280.3 P1Q8TDH9-1
BLOC1S5ENST00000244777.6 linkuse as main transcriptc.108C>G p.Ile36Met missense_variant, NMD_transcript_variant 1/61
BLOC1S5ENST00000627748.2 linkuse as main transcriptc.108C>G p.Ile36Met missense_variant, NMD_transcript_variant 1/61
BLOC1S5ENST00000543936.7 linkuse as main transcriptc.108C>G p.Ile36Met missense_variant 1/42

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152222
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000965
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000121
AC:
3
AN:
248780
Hom.:
0
AF XY:
0.00000742
AC XY:
1
AN XY:
134846
show subpopulations
Gnomad AFR exome
AF:
0.000186
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1460670
Hom.:
0
Cov.:
31
AF XY:
0.00000413
AC XY:
3
AN XY:
726690
show subpopulations
Gnomad4 AFR exome
AF:
0.000120
Gnomad4 AMR exome
AF:
0.00
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:
0.0000263
AC:
4
AN:
152222
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74366
show subpopulations
Gnomad4 AFR
AF:
0.0000965
Gnomad4 AMR
AF:
0.00
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
Bravo
AF:
0.0000491
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsFeb 27, 2023The c.108C>G (p.I36M) alteration is located in exon 1 (coding exon 1) of the BLOC1S5 gene. This alteration results from a C to G substitution at nucleotide position 108, causing the isoleucine (I) at amino acid position 36 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.24
BayesDel_addAF
Benign
-0.071
T
BayesDel_noAF
Uncertain
-0.060
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.52
D;.
Eigen
Uncertain
0.22
Eigen_PC
Benign
0.15
FATHMM_MKL
Benign
0.44
N
LIST_S2
Benign
0.80
T;T
M_CAP
Benign
0.025
D
MetaRNN
Uncertain
0.44
T;T
MetaSVM
Benign
-0.85
T
MutationAssessor
Uncertain
2.6
M;.
MutationTaster
Benign
0.92
D;D
PROVEAN
Benign
-1.1
N;.
REVEL
Benign
0.20
Sift
Uncertain
0.0080
D;.
Sift4G
Uncertain
0.012
D;D
Polyphen
0.90
P;.
Vest4
0.62
MVP
0.53
MPC
0.39
ClinPred
0.45
T
GERP RS
1.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.32
gMVP
0.36

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs757169126; hg19: chr6-8064502; API