rs747855208

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_212550.5(BLOC1S3):​c.89C>G​(p.Ser30Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000696 in 1,580,328 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. S30S) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000070 ( 0 hom. )

Consequence

BLOC1S3
NM_212550.5 missense

Scores

2
2
14

Clinical Significance

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

Conservation

PhyloP100: 3.74

Publications

0 publications found
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]
MARK4 Gene-Disease associations (from GenCC):
  • neurodevelopmental disorder
    Inheritance: AD Classification: LIMITED Submitted by: G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.30186528).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_212550.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BLOC1S3
NM_212550.5
MANE Select
c.89C>Gp.Ser30Cys
missense
Exon 2 of 2NP_997715.1Q6QNY0

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BLOC1S3
ENST00000433642.3
TSL:2 MANE Select
c.89C>Gp.Ser30Cys
missense
Exon 2 of 2ENSP00000393840.1Q6QNY0
BLOC1S3
ENST00000587722.1
TSL:6
c.89C>Gp.Ser30Cys
missense
Exon 1 of 1ENSP00000468281.1Q6QNY0
BLOC1S3
ENST00000884249.1
c.89C>Gp.Ser30Cys
missense
Exon 2 of 3ENSP00000554308.1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152206
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000192
AC:
4
AN:
207932
AF XY:
0.0000260
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS 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:
0.00000700
AC:
10
AN:
1428122
Hom.:
0
Cov.:
30
AF XY:
0.00000986
AC XY:
7
AN XY:
710052
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31522
American (AMR)
AF:
0.00
AC:
0
AN:
42778
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25542
East Asian (EAS)
AF:
0.00
AC:
0
AN:
37930
South Asian (SAS)
AF:
0.0000718
AC:
6
AN:
83598
European-Finnish (FIN)
AF:
0.0000522
AC:
2
AN:
38308
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5698
European-Non Finnish (NFE)
AF:
0.00000181
AC:
2
AN:
1103382
Other (OTH)
AF:
0.00
AC:
0
AN:
59364
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.515
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152206
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74356
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41458
American (AMR)
AF:
0.00
AC:
0
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68044
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000166
AC:
2

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not provided (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.31
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.25
T
Eigen
Benign
0.12
Eigen_PC
Benign
0.067
FATHMM_MKL
Benign
0.099
N
LIST_S2
Benign
0.51
T
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.30
T
MetaSVM
Benign
-0.73
T
MutationAssessor
Benign
0.69
N
PhyloP100
3.7
PrimateAI
Pathogenic
0.87
D
PROVEAN
Benign
-2.2
N
REVEL
Benign
0.21
Sift
Pathogenic
0.0
D
Sift4G
Uncertain
0.051
T
Polyphen
1.0
D
Vest4
0.42
MutPred
0.11
Loss of phosphorylation at S30 (P = 0.0018)
MVP
0.39
MPC
1.8
ClinPred
0.45
T
GERP RS
4.5
PromoterAI
0.018
Neutral
Varity_R
0.41
gMVP
0.24
Mutation Taster
=90/10
polymorphism

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

Other links and lift over

dbSNP: rs747855208; hg19: chr19-45682643; API