12-113398805-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_006843.3(SDS):​c.235C>A​(p.Leu79Ile) variant causes a missense change. The variant allele was found at a frequency of 0.00000745 in 1,611,662 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 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000069 ( 0 hom. )

Consequence

SDS
NM_006843.3 missense

Scores

5
9
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.65
Variant links:
Genes affected
SDS (HGNC:10691): (serine dehydratase) This gene encodes one of three enzymes that are involved in metabolizing serine and glycine. L-serine dehydratase converts L-serine to pyruvate and ammonia and requires pyridoxal phosphate as a cofactor. The encoded protein can also metabolize threonine to NH4+ and 2-ketobutyrate. The encoded protein is found predominantly in the liver. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.931

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SDSNM_006843.3 linkuse as main transcriptc.235C>A p.Leu79Ile missense_variant 4/8 ENST00000257549.9 NP_006834.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SDSENST00000257549.9 linkuse as main transcriptc.235C>A p.Leu79Ile missense_variant 4/82 NM_006843.3 ENSP00000257549 P1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152260
Hom.:
0
Cov.:
32
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:
0.000188
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000165
AC:
4
AN:
242864
Hom.:
0
AF XY:
0.0000151
AC XY:
2
AN XY:
132182
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:
0.000190
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000685
AC:
10
AN:
1459402
Hom.:
0
Cov.:
32
AF XY:
0.00000826
AC XY:
6
AN XY:
725968
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:
0.000190
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152260
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74388
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:
0.000188
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

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 submitterclinical testingAmbry GeneticsAug 22, 2023The c.235C>A (p.L79I) alteration is located in exon 4 (coding exon 3) of the SDS gene. This alteration results from a C to A substitution at nucleotide position 235, causing the leucine (L) at amino acid position 79 to be replaced by an isoleucine (I). 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
Benign
0.18
BayesDel_addAF
Pathogenic
0.19
D
BayesDel_noAF
Uncertain
0.040
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.80
D;D
Eigen
Uncertain
0.36
Eigen_PC
Benign
0.19
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.95
D;D
M_CAP
Uncertain
0.18
D
MetaRNN
Pathogenic
0.93
D;D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
3.2
M;.
MutationTaster
Benign
0.99
D
PrimateAI
Benign
0.39
T
PROVEAN
Benign
-1.9
N;N
REVEL
Uncertain
0.63
Sift
Uncertain
0.0050
D;D
Sift4G
Uncertain
0.0050
D;.
Polyphen
0.99
D;.
Vest4
0.59
MutPred
0.78
Gain of catalytic residue at Q78 (P = 9e-04);.;
MVP
0.89
MPC
0.93
ClinPred
0.75
D
GERP RS
3.0
Varity_R
0.56
gMVP
0.43

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.

Other links and lift over

dbSNP: rs1349217208; hg19: chr12-113836610; API