12-64866757-T-A

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_015279.2(TBC1D30):​c.1152-7T>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00265 in 1,534,008 control chromosomes in the GnomAD database, including 99 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.014 ( 52 hom., cov: 31)
Exomes 𝑓: 0.0014 ( 47 hom. )

Consequence

TBC1D30
NM_015279.2 splice_region, intron

Scores

2
Splicing: ADA: 0.9563
2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.05
Variant links:
Genes affected
TBC1D30 (HGNC:29164): (TBC1 domain family member 30) Enables GTPase activator activity and small GTPase binding activity. Involved in negative regulation of cilium assembly and positive regulation of GTPase activity. Located in ciliary basal body; cytosol; and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BP6
Variant 12-64866757-T-A is Benign according to our data. Variant chr12-64866757-T-A is described in ClinVar as [Benign]. Clinvar id is 768564.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0138 (2098/152260) while in subpopulation AFR AF= 0.0485 (2015/41532). AF 95% confidence interval is 0.0468. There are 52 homozygotes in gnomad4. There are 964 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 52 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TBC1D30NM_015279.2 linkuse as main transcriptc.1152-7T>A splice_region_variant, intron_variant ENST00000539867.6 NP_056094.1 Q9Y2I9-2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TBC1D30ENST00000539867.6 linkuse as main transcriptc.1152-7T>A splice_region_variant, intron_variant 1 NM_015279.2 ENSP00000440207.1 Q9Y2I9-2
ENSG00000288591ENST00000674281.1 linkuse as main transcriptn.810-7T>A splice_region_variant, intron_variant ENSP00000501395.1 F8VZ81

Frequencies

GnomAD3 genomes
AF:
0.0138
AC:
2094
AN:
152142
Hom.:
52
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0486
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00393
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00765
GnomAD3 exomes
AF:
0.00285
AC:
389
AN:
136446
Hom.:
13
AF XY:
0.00208
AC XY:
153
AN XY:
73498
show subpopulations
Gnomad AFR exome
AF:
0.0475
Gnomad AMR exome
AF:
0.00204
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000467
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000240
Gnomad OTH exome
AF:
0.000939
GnomAD4 exome
AF:
0.00142
AC:
1966
AN:
1381748
Hom.:
47
Cov.:
30
AF XY:
0.00121
AC XY:
823
AN XY:
681494
show subpopulations
Gnomad4 AFR exome
AF:
0.0518
Gnomad4 AMR exome
AF:
0.00244
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000102
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000640
Gnomad4 OTH exome
AF:
0.00283
GnomAD4 genome
AF:
0.0138
AC:
2098
AN:
152260
Hom.:
52
Cov.:
31
AF XY:
0.0129
AC XY:
964
AN XY:
74446
show subpopulations
Gnomad4 AFR
AF:
0.0485
Gnomad4 AMR
AF:
0.00392
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000415
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.00757
Alfa
AF:
0.00701
Hom.:
4
Bravo
AF:
0.0153
Asia WGS
AF:
0.00173
AC:
6
AN:
3478

ClinVar

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

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 20, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
CADD
Benign
14
DANN
Benign
0.68

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.96
dbscSNV1_RF
Benign
0.67
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: rs74099695; hg19: chr12-65260537; API