rs146546977

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 3P and 8B. PM2PP3BP6_Very_Strong

The NM_032122.5(DTNBP1):ā€‹c.487A>Cā€‹(p.Arg163=) variant causes a splice region, synonymous change. The variant allele was found at a frequency of 0.000245 in 1,614,172 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.00064 ( 1 hom., cov: 32)
Exomes š‘“: 0.00020 ( 0 hom. )

Consequence

DTNBP1
NM_032122.5 splice_region, synonymous

Scores

2
Splicing: ADA: 0.9822
2

Clinical Significance

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

Conservation

PhyloP100: 4.24
Variant links:
Genes affected
DTNBP1 (HGNC:17328): (dystrobrevin binding protein 1) This gene encodes a protein that may play a role in organelle biogenesis associated with melanosomes, platelet dense granules, and lysosomes. A similar protein in mouse is a component of a protein complex termed biogenesis of lysosome-related organelles complex 1 (BLOC-1), and binds to alpha- and beta-dystrobrevins, which are components of the dystrophin-associated protein complex (DPC). Mutations in this gene are associated with Hermansky-Pudlak syndrome type 7. This gene may also be associated with schizophrenia. Multiple transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.
BP6
Variant 6-15615268-T-G is Benign according to our data. Variant chr6-15615268-T-G is described in ClinVar as [Likely_benign]. Clinvar id is 262011.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DTNBP1NM_032122.5 linkuse as main transcriptc.487A>C p.Arg163= splice_region_variant, synonymous_variant 6/10 ENST00000344537.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DTNBP1ENST00000344537.10 linkuse as main transcriptc.487A>C p.Arg163= splice_region_variant, synonymous_variant 6/101 NM_032122.5 P1Q96EV8-1

Frequencies

GnomAD3 genomes
AF:
0.000624
AC:
95
AN:
152210
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00159
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00663
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000406
AC:
102
AN:
251432
Hom.:
0
AF XY:
0.000361
AC XY:
49
AN XY:
135894
show subpopulations
Gnomad AFR exome
AF:
0.00154
Gnomad AMR exome
AF:
0.000289
Gnomad ASJ exome
AF:
0.00605
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000528
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000203
AC:
297
AN:
1461844
Hom.:
0
Cov.:
31
AF XY:
0.000194
AC XY:
141
AN XY:
727220
show subpopulations
Gnomad4 AFR exome
AF:
0.00182
Gnomad4 AMR exome
AF:
0.000268
Gnomad4 ASJ exome
AF:
0.00585
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000288
Gnomad4 OTH exome
AF:
0.000629
GnomAD4 genome
AF:
0.000643
AC:
98
AN:
152328
Hom.:
1
Cov.:
32
AF XY:
0.000537
AC XY:
40
AN XY:
74494
show subpopulations
Gnomad4 AFR
AF:
0.00166
Gnomad4 AMR
AF:
0.000261
Gnomad4 ASJ
AF:
0.00663
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000394
Hom.:
0
Bravo
AF:
0.000657
Asia WGS
AF:
0.00115
AC:
4
AN:
3476
EpiCase
AF:
0.000218
EpiControl
AF:
0.000237

ClinVar

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

Submissions by phenotype

not specified Benign:2
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Likely benign, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoJan 16, 2020- -
not provided Benign:2
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.27
CADD
Benign
19
DANN
Benign
0.91

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.98
dbscSNV1_RF
Pathogenic
0.84
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: rs146546977; hg19: chr6-15615499; API