10-101131876-G-C

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_005521.4(TLX1):​c.335G>C​(p.Gly112Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000734 in 1,403,324 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000040 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000078 ( 0 hom. )

Consequence

TLX1
NM_005521.4 missense

Scores

2
17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.63
Variant links:
Genes affected
TLX1 (HGNC:5056): (T cell leukemia homeobox 1) This gene encodes a nuclear transcription factor that belongs to the NK-linked or NK-like (NKL) subfamily of homeobox genes. The encoded protein is required for normal development of the spleen during embryogenesis. This protein is also involved in specification of neuronal cell fates. Ectopic expression of this gene due to chromosomal translocations is associated with certain T-cell acute lymphoblastic leukemias. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Sep 2010]
TLX1NB (HGNC:37183): (TLX1 neighbor)

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=0.18937081).
BS2
High AC in GnomAd4 at 6 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
TLX1NM_005521.4 linkc.335G>C p.Gly112Ala missense_variant Exon 1 of 3 ENST00000370196.11 NP_005512.1 P31314-1
TLX1NM_001195517.2 linkc.335G>C p.Gly112Ala missense_variant Exon 1 of 3 NP_001182446.1 P31314-2
TLX1XM_011539744.4 linkc.335G>C p.Gly112Ala missense_variant Exon 1 of 3 XP_011538046.1
TLX1NBNR_130724.1 linkn.580-4778C>G intron_variant Intron 1 of 2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
TLX1ENST00000370196.11 linkc.335G>C p.Gly112Ala missense_variant Exon 1 of 3 1 NM_005521.4 ENSP00000359215.6 P31314-1

Frequencies

GnomAD3 genomes
AF:
0.0000395
AC:
6
AN:
151802
Hom.:
0
Cov.:
32
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:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000884
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000577
AC:
2
AN:
34642
AF XY:
0.00
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 FIN exome
AF:
0.000259
Gnomad NFE exome
AF:
0.0000692
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000775
AC:
97
AN:
1251522
Hom.:
0
Cov.:
31
AF XY:
0.0000816
AC XY:
50
AN XY:
612408
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
24534
American (AMR)
AF:
0.00
AC:
0
AN:
13618
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19408
East Asian (EAS)
AF:
0.00
AC:
0
AN:
27698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
57710
European-Finnish (FIN)
AF:
0.0000295
AC:
1
AN:
33864
Middle Eastern (MID)
AF:
0.000200
AC:
1
AN:
5002
European-Non Finnish (NFE)
AF:
0.0000874
AC:
89
AN:
1018042
Other (OTH)
AF:
0.000116
AC:
6
AN:
51646
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.473
Heterozygous variant carriers
0
6
12
19
25
31
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:
0.0000395
AC:
6
AN:
151802
Hom.:
0
Cov.:
32
AF XY:
0.0000270
AC XY:
2
AN XY:
74132
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41344
American (AMR)
AF:
0.00
AC:
0
AN:
15254
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5152
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10562
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000884
AC:
6
AN:
67894
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.533
Heterozygous variant carriers
0
1
2
2
3
4
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:
0.00
Hom.:
0
Bravo
AF:
0.0000491

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Feb 15, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.335G>C (p.G112A) alteration is located in exon 1 (coding exon 1) of the TLX1 gene. This alteration results from a G to C substitution at nucleotide position 335, causing the glycine (G) at amino acid position 112 to be replaced by an alanine (A). 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
0.073
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.27
CADD
Benign
15
DANN
Benign
0.85
DEOGEN2
Benign
0.22
T;.;.
Eigen
Benign
-0.71
Eigen_PC
Benign
-0.62
FATHMM_MKL
Benign
0.58
D
LIST_S2
Benign
0.59
T;T;T
M_CAP
Pathogenic
0.77
D
MetaRNN
Benign
0.19
T;T;T
MetaSVM
Benign
-0.67
T
MutationAssessor
Benign
0.90
L;L;.
PhyloP100
1.6
PrimateAI
Pathogenic
0.93
D
PROVEAN
Benign
-0.29
N;N;.
REVEL
Benign
0.16
Sift
Benign
0.40
T;T;.
Sift4G
Benign
0.84
T;T;T
Polyphen
0.0010
B;.;.
Vest4
0.23
MutPred
0.23
Gain of helix (P = 0.062);Gain of helix (P = 0.062);.;
MVP
0.75
ClinPred
0.037
T
GERP RS
1.6
PromoterAI
0.0024
Neutral
Varity_R
0.074
gMVP
0.57
Mutation Taster
=92/8
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: rs1041689224; hg19: chr10-102891633; API