1-43453676-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_001190880.3(HYI):c.118C>G(p.Pro40Ala) variant causes a missense change. The variant allele was found at a frequency of 0.0000286 in 1,470,018 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000031 ( 0 hom. )

Consequence

HYI
NM_001190880.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.51

Variant links:

Genes affected

HYI (HGNC:26948): (hydroxypyruvate isomerase (putative)) This gene encodes a putative hydroxypyruvate isomerase, which likely catalyzes the conversion of hydroxypyruvate to 2-hydroxy-3-oxopropanoate, and may be involved in carbohydrate transport and metabolism. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2011]

HYI links:

SZT2 (HGNC:29040): (SZT2 subunit of KICSTOR complex) The protein encoded by this gene is expressed in the brain, predominantly in the parietal and frontal cortex as well as in dorsal root ganglia. It is localized to the peroxisome, and is implicated in resistance to oxidative stress. It likely functions by increasing superoxide dismutase (SOD) activity, but itself has no direct SOD activity. Studies in mice show that this gene confers low seizure threshold, and may also enhance epileptogenesis. [provided by RefSeq, Jun 2011]

SZT2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.754

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HYI	NM_001190880.3 linkuse as main transcript	c.118C>G	p.Pro40Ala	missense_variant	1/8	ENST00000372430.9
SZT2	NM_001365999.1 linkuse as main transcript	c.*3196G>C		3_prime_UTR_variant	72/72	ENST00000634258.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HYI	ENST00000372430.9 linkuse as main transcript	c.118C>G	p.Pro40Ala	missense_variant	1/8	1	NM_001190880.3	P1	Q5T013-1
SZT2	ENST00000634258.3 linkuse as main transcript	c.*3196G>C		3_prime_UTR_variant	72/72	5	NM_001365999.1	P1	Q5T011-1

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152062

Hom.:

Cov.:

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000141

AC:

AN:

70892

Hom.:

AF XY:

0.00

AC XY:

AN XY:

41320

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:

0.0000377

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000311

AC:

AN:

1317956

Hom.:

Cov.:

AF XY:

0.0000308

AC XY:

AN XY:

649912

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.0000342

Gnomad4 OTH exome

AF:

0.0000915

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152062

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74282

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000151

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 submitter

clinical testing

Ambry Genetics

Jan 05, 2022

The c.118C>G (p.P40A) alteration is located in exon 1 (coding exon 1) of the HYI gene. This alteration results from a C to G substitution at nucleotide position 118, causing the proline (P) at amino acid position 40 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

Uncertain

0.48

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.36

Cadd

Pathogenic

Dann

Uncertain

0.99

DEOGEN2

Benign

0.34

T;T;T;.;T

Eigen

Pathogenic

0.70

Eigen_PC

Uncertain

0.59

FATHMM_MKL

Uncertain

0.87

LIST_S2

Benign

0.83

T;T;T;T;T

M_CAP

Pathogenic

0.92

MetaRNN

Pathogenic

0.75

D;D;D;D;D

MetaSVM

Uncertain

0.016

MutationAssessor

Pathogenic

3.0

M;.;.;M;.

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Pathogenic

0.84

PROVEAN

Pathogenic

-5.9

D;.;.;D;D

REVEL

Uncertain

0.36

Sift

Uncertain

0.0040

D;.;.;D;D

Sift4G

Uncertain

0.032

D;T;D;D;D

Polyphen

1.0

D;.;.;.;.

Vest4

0.36

MutPred

0.58

Loss of glycosylation at P40 (P = 0.0853);Loss of glycosylation at P40 (P = 0.0853);Loss of glycosylation at P40 (P = 0.0853);Loss of glycosylation at P40 (P = 0.0853);Loss of glycosylation at P40 (P = 0.0853);

MVP

0.72

MPC

0.33

ClinPred

0.97

GERP RS

4.6

Varity_R

0.48

gMVP

0.57

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over