2-74514906-G-C

Variant summary

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

The ENST00000233638.8(TLX2):ā€‹c.100G>Cā€‹(p.Gly34Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,610,942 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 33)
Exomes š‘“: 0.0000027 ( 0 hom. )

Consequence

TLX2
ENST00000233638.8 missense

Scores

1
2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.181
Variant links:
Genes affected
TLX2 (HGNC:5057): (T cell leukemia homeobox 2) This gene is a member of an orphan homeobox-containing transcription factor family. Studies of the mouse ortholog have shown that the encoded protein is crucial for the development of the enteric nervous system; in humans, loss-of-function may play a role in tumorigenesis of gastrointestinal stromal tumors. [provided by RefSeq, May 2010]

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=0.18524262).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TLX2NM_016170.5 linkuse as main transcriptc.100G>C p.Gly34Arg missense_variant 1/3 ENST00000233638.8 NP_057254.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TLX2ENST00000233638.8 linkuse as main transcriptc.100G>C p.Gly34Arg missense_variant 1/31 NM_016170.5 ENSP00000233638 P1
TLX2ENST00000621092.1 linkuse as main transcriptc.11+672G>C intron_variant 1 ENSP00000482690
TLX2ENST00000497238.1 linkuse as main transcriptn.522-116G>C intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152228
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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
GnomAD3 exomes
AF:
0.00000414
AC:
1
AN:
241448
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
132094
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000926
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1458714
Hom.:
0
Cov.:
34
AF XY:
0.00000138
AC XY:
1
AN XY:
725686
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000674
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152228
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74370
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000227

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 GeneticsNov 03, 2023The c.100G>C (p.G34R) alteration is located in exon 1 (coding exon 1) of the TLX2 gene. This alteration results from a G to C substitution at nucleotide position 100, causing the glycine (G) at amino acid position 34 to be replaced by an arginine (R). 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
-0.040
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
15
DANN
Benign
0.86
DEOGEN2
Uncertain
0.43
T
Eigen
Benign
-0.96
Eigen_PC
Benign
-0.94
FATHMM_MKL
Benign
0.23
N
LIST_S2
Benign
0.55
T
M_CAP
Pathogenic
0.72
D
MetaRNN
Benign
0.19
T
MetaSVM
Benign
-0.78
T
MutationAssessor
Benign
2.0
M
MutationTaster
Benign
0.98
N
PrimateAI
Uncertain
0.69
T
PROVEAN
Benign
-0.41
N
REVEL
Benign
0.28
Sift
Benign
0.68
T
Sift4G
Benign
0.52
T
Polyphen
0.0
B
Vest4
0.23
MutPred
0.39
Gain of sheet (P = 0.0221);
MVP
0.71
MPC
1.3
ClinPred
0.043
T
GERP RS
-2.4
Varity_R
0.049
gMVP
0.51

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.

Other links and lift over

dbSNP: rs1331221818; hg19: chr2-74742033; API