chr19-45179290-C-G

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_212550.5(BLOC1S3):​c.-7C>G variant causes a splice region, 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000616 in 1,575,562 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0031 ( 2 hom., cov: 32)
Exomes 𝑓: 0.00035 ( 4 hom. )

Consequence

BLOC1S3
NM_212550.5 splice_region, 5_prime_UTR

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.362
Variant links:
Genes affected
BLOC1S3 (HGNC:20914): (biogenesis of lysosomal organelles complex 1 subunit 3) This gene encodes a protein that is a component of the BLOC1 multi-subunit protein complex. This complex is necessary for the biogenesis of specialized organelles of the endosomal-lysosomal system, including platelet dense granules and melanosomes. Mutations in this gene cause Hermansky-Pudlak syndrome 8, a disease characterized by lysosomal storage defects, bleeding due to platelet storage pool deficiency, and oculocutaneous albinism. [provided by RefSeq, Jul 2008]
MARK4 (HGNC:13538): (microtubule affinity regulating kinase 4) This gene encodes a member of the microtubule affinity-regulating kinase family. These protein kinases phosphorylate microtubule-associated proteins and regulate the transition between stable and dynamic microtubules. The encoded protein is associated with the centrosome throughout mitosis and may be involved in cell cycle control. Expression of this gene is a potential marker for cancer, and the encoded protein may also play a role in Alzheimer's disease. Pseudogenes of this gene are located on both the short and long arm of chromosome 3. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Dec 2010]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BP6
Variant 19-45179290-C-G is Benign according to our data. Variant chr19-45179290-C-G is described in ClinVar as [Benign]. Clinvar id is 329470.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
BLOC1S3NM_212550.5 linkuse as main transcriptc.-7C>G splice_region_variant, 5_prime_UTR_variant 2/2 ENST00000433642.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
BLOC1S3ENST00000433642.3 linkuse as main transcriptc.-7C>G splice_region_variant, 5_prime_UTR_variant 2/22 NM_212550.5 P1
BLOC1S3ENST00000587722.1 linkuse as main transcriptc.-7C>G 5_prime_UTR_variant 1/1 P1
MARK4ENST00000587566.5 linkuse as main transcriptc.-276-79699C>G intron_variant 5

Frequencies

GnomAD3 genomes
AF:
0.00312
AC:
475
AN:
152244
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0107
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00137
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00191
GnomAD3 exomes
AF:
0.000776
AC:
159
AN:
204772
Hom.:
0
AF XY:
0.000538
AC XY:
61
AN XY:
113374
show subpopulations
Gnomad AFR exome
AF:
0.0112
Gnomad AMR exome
AF:
0.000854
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000649
Gnomad SAS exome
AF:
0.000111
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000310
Gnomad OTH exome
AF:
0.000197
GnomAD4 exome
AF:
0.000349
AC:
497
AN:
1423200
Hom.:
4
Cov.:
30
AF XY:
0.000312
AC XY:
221
AN XY:
707322
show subpopulations
Gnomad4 AFR exome
AF:
0.0108
Gnomad4 AMR exome
AF:
0.000936
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000362
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000508
Gnomad4 OTH exome
AF:
0.000912
GnomAD4 genome
AF:
0.00311
AC:
474
AN:
152362
Hom.:
2
Cov.:
32
AF XY:
0.00319
AC XY:
238
AN XY:
74516
show subpopulations
Gnomad4 AFR
AF:
0.0107
Gnomad4 AMR
AF:
0.00137
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.00189
Alfa
AF:
0.000180
Hom.:
0
Bravo
AF:
0.00359
Asia WGS
AF:
0.00202
AC:
7
AN:
3478

ClinVar

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

Submissions by phenotype

not specified Benign:1
Benign, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoAug 18, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
CADD
Benign
5.1
DANN
Benign
0.73

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs200767686; hg19: chr19-45682548; API