rs118203967

Variant names:

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM2PP3_StrongPP5_Moderate

The NM_058179.4(PSAT1):c.299A>C(p.Asp100Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000142 in 1,614,062 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 Pathogenic (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

PSAT1
NM_058179.4 missense

Scores

Clinical Significance

Pathogenic criteria provided, single submitter P:4O:1

Conservation

PhyloP100: 8.91

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:

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.95

PP5

Variant 9-78304842-A-C is Pathogenic according to our data. Variant chr9-78304842-A-C is described in ClinVar as [Pathogenic]. Clinvar id is 1082.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr9-78304842-A-C is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PSAT1	NM_058179.4 link	c.299A>C	p.Asp100Ala	missense_variant	Exon 4 of 9	ENST00000376588.4	NP_478059.1	Q9Y617-1A0A024R222
PSAT1	NM_021154.5 link	c.299A>C	p.Asp100Ala	missense_variant	Exon 4 of 8		NP_066977.1	Q9Y617-2A0A024R280

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PSAT1	ENST00000376588.4 link	c.299A>C	p.Asp100Ala	missense_variant	Exon 4 of 9	1	NM_058179.4	ENSP00000365773.3		Q9Y617-1
PSAT1	ENST00000347159.6 link	c.299A>C	p.Asp100Ala	missense_variant	Exon 4 of 8	1		ENSP00000317606.2		Q9Y617-2

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152218

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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

GnomAD4 exome

AF:

0.0000144

AC:

AN:

1461844

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

727220

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:

0.0000180

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152218

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74368

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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

Alfa

AF:

0.0000239

Hom.:

Bravo

AF:

0.00000756

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:4Other:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Pathogenic:2Other:1

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance: Likely pathogenic

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance: Likely pathogenic

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Dudley Research Group, Pacific Northwest Research Institute

Significance: not provided

Review Status: no classification provided

Collection Method: in vivo;research

- -

Neu-Laxova syndrome 2

Pathogenic:1

Dec 19, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces aspartic acid, which is acidic and polar, with alanine, which is neutral and non-polar, at codon 100 of the PSAT1 protein (p.Asp100Ala). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with phosphoserine aminotransferase deficiency (PMID: 17436247). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 1082). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt PSAT1 protein function with a negative predictive value of 80%. Experimental studies have shown that this missense change affects PSAT1 function (PMID: 17436247, 32077105). For these reasons, this variant has been classified as Pathogenic. -

PSAT deficiency

Pathogenic:1

May 01, 2007

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.87

BayesDel_addAF

Pathogenic

0.41

BayesDel_noAF

Pathogenic

0.35

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.77

.;D

Eigen

Pathogenic

0.76

Eigen_PC

Pathogenic

0.77

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.93

D;D

M_CAP

Pathogenic

0.29

MetaRNN

Pathogenic

0.95

D;D

MetaSVM

Uncertain

0.60

MutationAssessor

Benign

1.9

L;L

PrimateAI

Uncertain

0.67

PROVEAN

Pathogenic

-6.8

D;D

REVEL

Pathogenic

0.93

Sift

Uncertain

0.023

D;D

Sift4G

Uncertain

0.044

D;D

Polyphen

1.0

D;D

Vest4

0.94

MVP

0.97

MPC

0.63

ClinPred

1.0

GERP RS

5.7

Varity_R

0.92

gMVP

0.95

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