rs150253333

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS1

The NM_001303457.2(TTI1):​c.2924C>T​(p.Ser975Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000849 in 1,613,972 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. 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. S975W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000099 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000083 ( 0 hom. )

Consequence

TTI1
NM_001303457.2 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.76

Publications

3 publications found
Variant links:
Genes affected
TTI1 (HGNC:29029): (TELO2 interacting protein 1) Involved in regulation of TOR signaling. Located in cytoplasm. Part of TORC1 complex and TORC2 complex. [provided by Alliance of Genome Resources, Apr 2022]
TTI1 Gene-Disease associations (from GenCC):
  • neurodevelopmental disorder with microcephaly and movement abnormalities
    Inheritance: AR Classification: STRONG Submitted by: Broad Center for Mendelian Genomics
  • microcephaly
    Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.107072204).
BS1
Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.0000986 (15/152176) while in subpopulation AMR AF = 0.000393 (6/15274). AF 95% confidence interval is 0.00017. There are 0 homozygotes in GnomAd4. There are 8 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001303457.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TTI1
NM_001303457.2
MANE Select
c.2924C>Tp.Ser975Leu
missense
Exon 6 of 8NP_001290386.1O43156
TTI1
NM_014657.3
c.2924C>Tp.Ser975Leu
missense
Exon 7 of 9NP_055472.1O43156

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TTI1
ENST00000373447.8
TSL:1 MANE Select
c.2924C>Tp.Ser975Leu
missense
Exon 6 of 8ENSP00000362546.3O43156
TTI1
ENST00000373448.6
TSL:1
c.2924C>Tp.Ser975Leu
missense
Exon 7 of 9ENSP00000362547.2O43156
TTI1
ENST00000898963.1
c.2978C>Tp.Ser993Leu
missense
Exon 6 of 8ENSP00000569022.1

Frequencies

GnomAD3 genomes
AF:
0.0000986
AC:
15
AN:
152176
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
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:
0.000103
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.0000676
AC:
17
AN:
251328
AF XY:
0.0000663
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000114
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.0000835
AC:
122
AN:
1461796
Hom.:
0
Cov.:
31
AF XY:
0.0000715
AC XY:
52
AN XY:
727188
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.0000671
AC:
3
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53414
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000998
AC:
111
AN:
1111930
Other (OTH)
AF:
0.000116
AC:
7
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.476
Heterozygous variant carriers
0
8
16
24
32
40
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.0000986
AC:
15
AN:
152176
Hom.:
0
Cov.:
32
AF XY:
0.000108
AC XY:
8
AN XY:
74342
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41438
American (AMR)
AF:
0.000393
AC:
6
AN:
15274
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000103
AC:
7
AN:
68032
Other (OTH)
AF:
0.000478
AC:
1
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.472
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000135
Hom.:
0
Bravo
AF:
0.000136
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000519
AC:
2
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.000109
EpiControl
AF:
0.000237

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.34
T
BayesDel_noAF
Benign
-0.53
CADD
Benign
18
DANN
Benign
0.94
DEOGEN2
Benign
0.014
T
Eigen
Benign
-0.60
Eigen_PC
Benign
-0.45
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Benign
0.55
T
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.11
T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
1.0
L
PhyloP100
1.8
PrimateAI
Benign
0.47
T
PROVEAN
Benign
-0.97
N
REVEL
Benign
0.067
Sift
Benign
0.17
T
Sift4G
Uncertain
0.021
D
Polyphen
0.025
B
Vest4
0.17
MVP
0.42
MPC
0.13
ClinPred
0.049
T
GERP RS
3.3
Varity_R
0.031
gMVP
0.25
Mutation Taster
=79/21
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: rs150253333; hg19: chr20-36625225; API
For research and educational, non-commercial use only. Not for clinical or diagnostic use. GeneBe does not provide medical advice. Data use for AI modeling is prohibited: if used, the cost is $0.001 per byte of downloaded uncompressed data.