Genetic Variant NM_000365.6:c.103C>T (chr12-6867669-C-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate

The NM_000365.6(TPI1):c.103C>T(p.Pro35Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,609,030 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. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 34)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

TPI1
NM_000365.6 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.27

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]

TPI1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM1

In a chain Triosephosphate isomerase (size 247) in uniprot entity TPIS_HUMAN there are 4 pathogenic changes around while only 0 benign (100%) in NM_000365.6

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.1578699).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TPI1	NM_000365.6 link	c.103C>T	p.Pro35Ser	missense_variant	Exon 1 of 7	ENST00000396705.10	NP_000356.1	P60174-1V9HWK1Q53HE2
TPI1	NM_001159287.1 link	c.214C>T	p.Pro72Ser	missense_variant	Exon 1 of 7		NP_001152759.1	P60174-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
TPI1	ENST00000396705.10 link	c.103C>T	p.Pro35Ser	missense_variant	Exon 1 of 7	1	NM_000365.6	ENSP00000379933.4	P60174-1
TPI1	ENST00000229270.8 link	c.214C>T	p.Pro72Ser	missense_variant	Exon 1 of 7	1		ENSP00000229270.4	P60174-3
TPI1	ENST00000613953.4 link	c.214C>T	p.Pro72Ser	missense_variant	Exon 1 of 7	1		ENSP00000484435.1	P60174-3

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

151946

Hom.:

Cov.:

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

GnomAD3 exomes

AF:

0.00000416

AC:

AN:

240378

Hom.:

AF XY:

0.00

AC XY:

AN XY:

132178

show subpopulations

Gnomad AFR exome

AF:

0.0000721

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.86e-7

AC:

AN:

1457084

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

724756

show subpopulations

Gnomad4 AFR exome

AF:

0.0000303

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:

AN:

151946

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74210

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

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.26

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.65

D;D;.

Eigen

Benign

-0.30

Eigen_PC

Benign

-0.095

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.92

.;D;D

M_CAP

Pathogenic

0.33

MetaRNN

Benign

0.16

T;T;T

MetaSVM

Benign

-0.34

MutationAssessor

Benign

0.38

N;N;.

PrimateAI

Uncertain

0.63

PROVEAN

Benign

-0.51

N;.;N

REVEL

Benign

0.22

Sift

Benign

0.41

T;.;T

Sift4G

Benign

0.56

T;T;T

Polyphen

0.0020

B;B;.

Vest4

0.10

MutPred

0.27

Loss of methylation at K70 (P = 0.0597);Loss of methylation at K70 (P = 0.0597);.;

MVP

0.39

MPC

0.39

ClinPred

0.11

GERP RS

4.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.23

gMVP

0.38

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

Computational scores

Splicing

Publications

LitVar

Other links and lift over