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GeneBe

rs1800202

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The ENST00000229270.8(TPI1):c.50T>A(p.Ile17Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000127 in 1,579,216 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 10/17 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I17R) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 34)
Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

TPI1
ENST00000229270.8 missense

Scores

1
2
13

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.12
Variant links:
Genes affected
TPI1 (HGNC:12009): (triosephosphate isomerase 1) This gene encodes an enzyme, consisting of two identical proteins, which catalyzes the isomerization of glyceraldehydes 3-phosphate (G3P) and dihydroxy-acetone phosphate (DHAP) in glycolysis and gluconeogenesis. Mutations in this gene are associated with triosephosphate isomerase deficiency. Pseudogenes have been identified on chromosomes 1, 4, 6 and 7. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2009]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.27078366).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TPI1NM_001159287.1 linkuse as main transcriptc.50T>A p.Ile17Lys missense_variant 1/7
TPI1NM_000365.6 linkuse as main transcript upstream_gene_variant ENST00000396705.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TPI1ENST00000229270.8 linkuse as main transcriptc.50T>A p.Ile17Lys missense_variant 1/71 P60174-3
TPI1ENST00000613953.4 linkuse as main transcriptc.50T>A p.Ile17Lys missense_variant 1/71 P60174-3
TPI1ENST00000396705.10 linkuse as main transcript upstream_gene_variant 1 NM_000365.6 P1P60174-1

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151968
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000242
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
7.01e-7
AC:
1
AN:
1427248
Hom.:
0
Cov.:
34
AF XY:
0.00000141
AC XY:
1
AN XY:
707182
show subpopulations
Gnomad4 AFR exome
AF:
0.0000307
Gnomad4 AMR exome
AF:
0.00
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
151968
Hom.:
0
Cov.:
34
AF XY:
0.00
AC XY:
0
AN XY:
74218
show subpopulations
Gnomad4 AFR
AF:
0.0000242
Gnomad4 AMR
AF:
0.00
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

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Uncertain
0.078
D
BayesDel_noAF
Benign
-0.13
Cadd
Benign
19
Dann
Benign
0.96
DEOGEN2
Benign
0.32
T;T
Eigen
Benign
0.080
Eigen_PC
Benign
0.16
FATHMM_MKL
Uncertain
0.93
D
M_CAP
Pathogenic
0.37
D
MetaRNN
Benign
0.27
T;T
MetaSVM
Benign
-0.91
T
MutationAssessor
Benign
0.0
N;N
MutationTaster
Benign
0.86
D
PROVEAN
Benign
-0.11
N;.
REVEL
Benign
0.18
Sift
Benign
0.049
D;.
Sift4G
Benign
0.070
T;T
Vest4
0.33
MutPred
0.44
Gain of solvent accessibility (P = 0.012);Gain of solvent accessibility (P = 0.012);
MVP
0.21
MPC
1.5
ClinPred
0.64
D
GERP RS
4.8
Varity_R
0.12
gMVP
0.42

Splicing

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: rs1800202; hg19: chr12-6976669; API