4-140639412-C-A

Variant summary

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

The ENST00000442267.3(TBC1D9):​c.2354G>T​(p.Arg785Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000385 in 1,610,592 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R785Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00039 ( 0 hom. )

Consequence

TBC1D9
ENST00000442267.3 missense

Scores

2
11
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.74
Variant links:
Genes affected
TBC1D9 (HGNC:21710): (TBC1 domain family member 9) Predicted to enable GTPase activator activity. Predicted to be involved in activation of GTPase activity and intracellular protein transport. [provided by Alliance of Genome Resources, Apr 2022]

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 Protein UniProt
TBC1D9NM_015130.3 linkuse as main transcriptc.2354G>T p.Arg785Leu missense_variant 14/21 ENST00000442267.3 NP_055945.2 Q6ZT07

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TBC1D9ENST00000442267.3 linkuse as main transcriptc.2354G>T p.Arg785Leu missense_variant 14/211 NM_015130.3 ENSP00000411197.2 Q6ZT07

Frequencies

GnomAD3 genomes
AF:
0.000322
AC:
49
AN:
152092
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000169
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000623
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000559
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000185
AC:
45
AN:
243470
Hom.:
0
AF XY:
0.000227
AC XY:
30
AN XY:
131888
show subpopulations
Gnomad AFR exome
AF:
0.000133
Gnomad AMR exome
AF:
0.0000883
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000102
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000336
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000392
AC:
572
AN:
1458382
Hom.:
0
Cov.:
30
AF XY:
0.000396
AC XY:
287
AN XY:
725064
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.0000901
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000129
Gnomad4 FIN exome
AF:
0.0000751
Gnomad4 NFE exome
AF:
0.000480
Gnomad4 OTH exome
AF:
0.000299
GnomAD4 genome
AF:
0.000315
AC:
48
AN:
152210
Hom.:
0
Cov.:
32
AF XY:
0.000296
AC XY:
22
AN XY:
74408
show subpopulations
Gnomad4 AFR
AF:
0.000169
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000416
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000559
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000213
Hom.:
0
Bravo
AF:
0.000268
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000365
AC:
3
ExAC
AF:
0.000166
AC:
20
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 03, 2022The c.2354G>T (p.R785L) alteration is located in exon 14 (coding exon 14) of the TBC1D9 gene. This alteration results from a G to T substitution at nucleotide position 2354, causing the arginine (R) at amino acid position 785 to be replaced by a leucine (L). 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
Pathogenic
0.59
BayesDel_addAF
Benign
-0.068
T
BayesDel_noAF
Uncertain
0.060
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.39
T
Eigen
Uncertain
0.63
Eigen_PC
Uncertain
0.65
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Uncertain
0.96
D
M_CAP
Benign
0.017
T
MetaRNN
Uncertain
0.64
D
MetaSVM
Benign
-1.2
T
MutationAssessor
Uncertain
2.3
M
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.65
T
PROVEAN
Uncertain
-3.4
D
REVEL
Uncertain
0.43
Sift
Uncertain
0.017
D
Sift4G
Benign
0.10
T
Polyphen
0.90
P
Vest4
0.97
MVP
0.31
MPC
1.6
ClinPred
0.19
T
GERP RS
5.1
Varity_R
0.47
gMVP
0.72

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs368140121; hg19: chr4-141560566; API