chr9-78297217-G-T

Position:

chr9-78297217-G-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_058179.4(PSAT1):c.7G>T(p.Ala3Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000418 in 1,601,190 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 34)

Exomes 𝑓: 0.000043 ( 0 hom. )

Consequence

PSAT1
NM_058179.4 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: -0.468

Variant links:

Genes affected

PSAT1 (HGNC:19129): (phosphoserine aminotransferase 1) This gene encodes a member of the class-V pyridoxal-phosphate-dependent aminotransferase family. The encoded protein is a phosphoserine aminotransferase and decreased expression may be associated with schizophrenia. Mutations in this gene are also associated with phosphoserine aminotransferase deficiency. Alternative splicing results in multiple transcript variants. Pseudogenes of this gene have been defined on chromosomes 1, 3, and 8. [provided by RefSeq, Jul 2013]

PSAT1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.022178948).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PSAT1	NM_058179.4 linkuse as main transcript	c.7G>T	p.Ala3Ser	missense_variant	1/9	ENST00000376588.4	NP_478059.1
PSAT1	NM_021154.5 linkuse as main transcript	c.7G>T	p.Ala3Ser	missense_variant	1/8		NP_066977.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PSAT1	ENST00000376588.4 linkuse as main transcript	c.7G>T	p.Ala3Ser	missense_variant	1/9	1	NM_058179.4	ENSP00000365773	P1	Q9Y617-1
PSAT1	ENST00000347159.6 linkuse as main transcript	c.7G>T	p.Ala3Ser	missense_variant	1/8	1		ENSP00000317606		Q9Y617-2

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152176

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:

0.000621

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000833

AC:

AN:

228132

Hom.:

AF XY:

0.0000959

AC XY:

AN XY:

125108

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:

0.000548

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000288

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000428

AC:

AN:

1449014

Hom.:

Cov.:

AF XY:

0.0000597

AC XY:

AN XY:

720770

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:

0.000565

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000721

Gnomad4 OTH exome

AF:

0.0000333

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152176

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74344

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:

0.000621

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000594

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.0000578

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1Other:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Neu-Laxova syndrome 2

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 14, 2022

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Experimental studies have shown that this missense change does not substantially affect PSAT1 function (PMID: 32077105). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The serine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. ClinVar contains an entry for this variant (Variation ID: 976926). This variant has not been reported in the literature in individuals affected with PSAT1-related conditions. This variant is present in population databases (rs776757559, gnomAD 0.05%). This sequence change replaces alanine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 3 of the PSAT1 protein (p.Ala3Ser). -

not provided

Other:1

not provided, no classification provided

in vivo;research

Dudley Research Group, Pacific Northwest Research Institute

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.080

BayesDel_addAF

Benign

-0.50

BayesDel_noAF

Benign

-0.62

CADD

Benign

3.8

DANN

Benign

0.91

DEOGEN2

Benign

0.12

.;T

Eigen

Benign

-1.1

Eigen_PC

Benign

-0.97

FATHMM_MKL

Benign

0.36

LIST_S2

Benign

0.48

T;T

M_CAP

Benign

0.026

MetaRNN

Benign

0.022

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.71

N;N

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.32

PROVEAN

Benign

0.63

N;N

REVEL

Benign

0.058

Sift

Benign

0.35

T;T

Sift4G

Benign

0.82

T;T

Polyphen

0.0

B;B

Vest4

0.062

MutPred

0.25

Gain of phosphorylation at A3 (P = 0.0349);Gain of phosphorylation at A3 (P = 0.0349);

MVP

0.46

MPC

0.11

ClinPred

0.028

GERP RS

1.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.066

gMVP

0.46

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

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over