rs138714955

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_ModerateBP7BS1_Supporting

The NM_006755.2(TALDO1):​c.96C>T​(p.His32His) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000731 in 1,573,420 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00031 ( 1 hom., cov: 34)
Exomes 𝑓: 0.000048 ( 1 hom. )

Consequence

TALDO1
NM_006755.2 splice_region, synonymous

Scores

1
1
Splicing: ADA: 0.03487
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1B:1

Conservation

PhyloP100: 0.0280

Publications

0 publications found
Variant links:
Genes affected
TALDO1 (HGNC:11559): (transaldolase 1) Transaldolase 1 is a key enzyme of the nonoxidative pentose phosphate pathway providing ribose-5-phosphate for nucleic acid synthesis and NADPH for lipid biosynthesis. This pathway can also maintain glutathione at a reduced state and thus protect sulfhydryl groups and cellular integrity from oxygen radicals. The functional gene of transaldolase 1 is located on chromosome 11 and a pseudogene is identified on chromosome 1 but there are conflicting map locations. The second and third exon of this gene were developed by insertion of a retrotransposable element. This gene is thought to be involved in multiple sclerosis. [provided by RefSeq, Jul 2008]
TALDO1 Gene-Disease associations (from GenCC):
  • transaldolase deficiency
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, PanelApp Australia, Labcorp Genetics (formerly Invitae), Orphanet, G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.31).
BP7
Synonymous conserved (PhyloP=0.028 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000309 (47/152320) while in subpopulation AFR AF = 0.00101 (42/41586). AF 95% confidence interval is 0.000768. There are 1 homozygotes in GnomAd4. There are 21 alleles in the male GnomAd4 subpopulation. Median coverage is 34. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006755.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TALDO1
NM_006755.2
MANE Select
c.96C>Tp.His32His
splice_region synonymous
Exon 1 of 8NP_006746.1A0A140VK56

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TALDO1
ENST00000319006.8
TSL:1 MANE Select
c.96C>Tp.His32His
splice_region synonymous
Exon 1 of 8ENSP00000321259.3P37837-1
TALDO1
ENST00000528097.5
TSL:1
c.96C>Tp.His32His
splice_region synonymous
Exon 1 of 8ENSP00000437098.1F2Z393
TALDO1
ENST00000896396.1
c.96C>Tp.His32His
splice_region synonymous
Exon 1 of 9ENSP00000566455.1

Frequencies

GnomAD3 genomes
AF:
0.000283
AC:
43
AN:
152212
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.000916
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.000956
GnomAD2 exomes
AF:
0.0000322
AC:
6
AN:
186444
AF XY:
0.0000391
show subpopulations
Gnomad AFR exome
AF:
0.000692
Gnomad AMR exome
AF:
0.00
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:
0.0000479
AC:
68
AN:
1421100
Hom.:
1
Cov.:
31
AF XY:
0.0000440
AC XY:
31
AN XY:
705034
show subpopulations
African (AFR)
AF:
0.00142
AC:
43
AN:
30344
American (AMR)
AF:
0.0000249
AC:
1
AN:
40102
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25214
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36018
South Asian (SAS)
AF:
0.00
AC:
0
AN:
80736
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49524
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5690
European-Non Finnish (NFE)
AF:
0.00000183
AC:
2
AN:
1094752
Other (OTH)
AF:
0.000375
AC:
22
AN:
58720
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
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
Exome Hom
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
GnomAD4 genome
AF:
0.000309
AC:
47
AN:
152320
Hom.:
1
Cov.:
34
AF XY:
0.000282
AC XY:
21
AN XY:
74488
show subpopulations
African (AFR)
AF:
0.00101
AC:
42
AN:
41586
American (AMR)
AF:
0.000196
AC:
3
AN:
15306
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68002
Other (OTH)
AF:
0.000946
AC:
2
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.491
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

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:
0.000311
Hom.:
2
Bravo
AF:
0.000280

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not provided (1)
-
-
1
TALDO1-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.31
CADD
Benign
14
DANN
Uncertain
0.99
PhyloP100
0.028
PromoterAI
0.041
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.8

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.035
dbscSNV1_RF
Benign
0.13
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: rs138714955; hg19: chr11-747577; API