12-113393982-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_006843.3(SDS):​c.688G>A​(p.Ala230Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,860 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

SDS
NM_006843.3 missense

Scores

7
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.45
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 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.29185686).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SDSNM_006843.3 linkuse as main transcriptc.688G>A p.Ala230Thr missense_variant 7/8 ENST00000257549.9 NP_006834.2 P20132Q8WW81

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SDSENST00000257549.9 linkuse as main transcriptc.688G>A p.Ala230Thr missense_variant 7/82 NM_006843.3 ENSP00000257549.4 P20132

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251330
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135862
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:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1461860
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727226
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:
0.00000270
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000824
AC:
1

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 GeneticsNov 28, 2024The c.688G>A (p.A230T) alteration is located in exon 7 (coding exon 6) of the SDS gene. This alteration results from a G to A substitution at nucleotide position 688, causing the alanine (A) at amino acid position 230 to be replaced by a threonine (T). 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
0.074
BayesDel_addAF
Uncertain
0.12
D
BayesDel_noAF
Uncertain
-0.050
CADD
Benign
16
DANN
Uncertain
0.97
DEOGEN2
Uncertain
0.58
D
Eigen
Benign
-0.32
Eigen_PC
Benign
-0.28
FATHMM_MKL
Benign
0.47
N
LIST_S2
Benign
0.61
T
M_CAP
Benign
0.083
D
MetaRNN
Benign
0.29
T
MetaSVM
Uncertain
0.66
D
MutationAssessor
Uncertain
2.1
M
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-1.1
N
REVEL
Uncertain
0.34
Sift
Benign
0.21
T
Sift4G
Benign
0.52
T
Polyphen
0.063
B
Vest4
0.12
MutPred
0.45
Gain of catalytic residue at Q231 (P = 0.0013);
MVP
0.89
MPC
0.26
ClinPred
0.29
T
GERP RS
4.8
Varity_R
0.26
gMVP
0.36

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: rs1050062; hg19: chr12-113831787; COSMIC: COSV99785332; COSMIC: COSV99785332; API