Variant chr20-37996884-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001303457.2(TTI1):c.2863A>G(p.Lys955Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,614,002 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

TTI1
NM_001303457.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.41

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.20108041).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
TTI1	NM_001303457.2 linkuse as main transcript	c.2863A>G	p.Lys955Glu	missense_variant	6/8	ENST00000373447.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
TTI1	ENST00000373447.8 linkuse as main transcript	c.2863A>G	p.Lys955Glu	missense_variant	6/8	1	NM_001303457.2	P1
TTI1	ENST00000373448.6 linkuse as main transcript	c.2863A>G	p.Lys955Glu	missense_variant	7/9	1		P1
TTI1	ENST00000449821.1 linkuse as main transcript	c.2863A>G	p.Lys955Glu	missense_variant	5/7	2		P1
TTI1	ENST00000473288.1 linkuse as main transcript	n.322A>G		non_coding_transcript_exon_variant	3/4	5

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152124

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000966

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

GnomAD3 exomes

AF:

0.0000278

AC:

AN:

251402

Hom.:

AF XY:

0.0000147

AC XY:

AN XY:

135874

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000381

Gnomad SAS 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:

0.00000889

AC:

AN:

1461878

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727238

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000302

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152124

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74306

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000966

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000189

ExAC

AF:

0.0000165

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 02, 2023

The c.2863A>G (p.K955E) alteration is located in exon 7 (coding exon 5) of the TTI1 gene. This alteration results from a A to G substitution at nucleotide position 2863, causing the lysine (K) at amino acid position 955 to be replaced by a glutamic acid (E). 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

0.18

BayesDel_addAF

Benign

-0.014

BayesDel_noAF

Uncertain

0.060

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.041

T;T;T

Eigen

Benign

0.011

Eigen_PC

Benign

0.11

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.86

.;.;D

M_CAP

Benign

0.018

MetaRNN

Benign

0.20

T;T;T

MetaSVM

Benign

-0.86

MutationAssessor

Uncertain

2.3

M;M;M

MutationTaster

Benign

0.94

D;D;D

PrimateAI

Benign

0.44

PROVEAN

Benign

-1.6

N;N;N

REVEL

Benign

0.29

Sift

Benign

0.047

D;D;D

Sift4G

Uncertain

0.032

D;D;D

Polyphen

0.57

P;P;P

Vest4

0.58

MutPred

0.45

Loss of methylation at K955 (P = 0.0196);Loss of methylation at K955 (P = 0.0196);Loss of methylation at K955 (P = 0.0196);

MVP

0.40

MPC

0.53

ClinPred

0.21

GERP RS

5.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.15

gMVP

0.42

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over