10-112668941-G-A

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 1P and 4B. PP3BS2

The NM_145206.4(VTI1A):​c.503G>A​(p.Arg168Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000329 in 1,611,826 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000035 ( 0 hom. )

Consequence

VTI1A
NM_145206.4 missense

Scores

4
10
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.23

Publications

0 publications found
Variant links:
Genes affected
VTI1A (HGNC:17792): (vesicle transport through interaction with t-SNAREs 1A) The protein encoded by this gene is a member of the family of soluble N-ethylmaleimide-sensitive fusion protein-attachment protein receptors (SNAREs) that function in intracellular trafficking. This family member is involved in vesicular transport between endosomes and the trans-Golgi network. It is a vesicle-associated SNARE (v-SNARE) that interacts with target membrane SNAREs (t-SNAREs). Polymorphisms in this gene have been associated with binocular function, and also with susceptibility to colorectal and lung cancers. A recurrent rearrangement has been found between this gene and the transcription factor 7-like 2 (TCF7L2) gene in colorectal cancers. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2015]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.814
BS2
High AC in GnomAdExome4 at 51 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
VTI1ANM_145206.4 linkc.503G>A p.Arg168Gln missense_variant Exon 7 of 8 ENST00000393077.3 NP_660207.2 Q96AJ9-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
VTI1AENST00000393077.3 linkc.503G>A p.Arg168Gln missense_variant Exon 7 of 8 2 NM_145206.4 ENSP00000376792.2 Q96AJ9-2
VTI1AENST00000432306.5 linkc.503G>A p.Arg168Gln missense_variant Exon 7 of 8 1 ENSP00000395017.1 Q96AJ9-1
VTI1AENST00000705995.1 linkc.524G>A p.Arg175Gln missense_variant Exon 8 of 9 ENSP00000516199.1 A0A994J5N6

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152058
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000159
AC:
4
AN:
251002
AF XY:
0.0000147
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000579
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:
0.0000349
AC:
51
AN:
1459768
Hom.:
0
Cov.:
30
AF XY:
0.0000317
AC XY:
23
AN XY:
726144
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33376
American (AMR)
AF:
0.0000447
AC:
2
AN:
44700
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26046
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39638
South Asian (SAS)
AF:
0.000116
AC:
10
AN:
86128
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53374
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5754
European-Non Finnish (NFE)
AF:
0.0000342
AC:
38
AN:
1110494
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60258
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.452
Heterozygous variant carriers
0
3
6
10
13
16
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152058
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74270
show subpopulations
African (AFR)
AF:
0.0000483
AC:
2
AN:
41404
American (AMR)
AF:
0.00
AC:
0
AN:
15242
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10582
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68010
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000580
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.000164
EpiControl
AF:
0.00

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Apr 18, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.503G>A (p.R168Q) alteration is located in exon 7 (coding exon 7) of the VTI1A gene. This alteration results from a G to A substitution at nucleotide position 503, causing the arginine (R) at amino acid position 168 to be replaced by a glutamine (Q). 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
Benign
0.20
BayesDel_addAF
Uncertain
0.092
D
BayesDel_noAF
Uncertain
0.080
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.55
.;D
Eigen
Uncertain
0.62
Eigen_PC
Uncertain
0.66
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.97
D;D
M_CAP
Uncertain
0.098
D
MetaRNN
Pathogenic
0.81
D;D
MetaSVM
Benign
-0.37
T
MutationAssessor
Benign
1.5
L;L
PhyloP100
9.2
PrimateAI
Uncertain
0.66
T
PROVEAN
Uncertain
-3.0
D;D
REVEL
Uncertain
0.55
Sift
Uncertain
0.0040
D;D
Sift4G
Benign
0.091
T;T
Polyphen
0.99
.;D
Vest4
0.83
MVP
0.80
MPC
0.44
ClinPred
0.94
D
GERP RS
5.7
Varity_R
0.60
gMVP
0.77
Mutation Taster
=30/70
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
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: rs755885630; hg19: chr10-114428700; COSMIC: COSV67583967; COSMIC: COSV67583967; API