chr12-113393102-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_006843.3(SDS):​c.826G>A​(p.Ala276Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000026 in 1,613,990 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

SDS
NM_006843.3 missense

Scores

5
9
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.22
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 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SDSNM_006843.3 linkuse as main transcriptc.826G>A p.Ala276Thr missense_variant 8/8 ENST00000257549.9 NP_006834.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SDSENST00000257549.9 linkuse as main transcriptc.826G>A p.Ala276Thr missense_variant 8/82 NM_006843.3 ENSP00000257549 P1

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152278
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000241
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
250668
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135546
show subpopulations
Gnomad AFR exome
AF:
0.000246
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:
0.0000177
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000219
AC:
32
AN:
1461712
Hom.:
0
Cov.:
31
AF XY:
0.0000206
AC XY:
15
AN XY:
727164
show subpopulations
Gnomad4 AFR exome
AF:
0.000179
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000207
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000657
AC:
10
AN:
152278
Hom.:
0
Cov.:
33
AF XY:
0.0000672
AC XY:
5
AN XY:
74402
show subpopulations
Gnomad4 AFR
AF:
0.000241
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:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000329
Hom.:
0
Bravo
AF:
0.0000453
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.000218
EpiControl
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 GeneticsJan 10, 2023The c.826G>A (p.A276T) alteration is located in exon 8 (coding exon 7) of the SDS gene. This alteration results from a G to A substitution at nucleotide position 826, causing the alanine (A) at amino acid position 276 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
0.16
BayesDel_addAF
Uncertain
0.059
T
BayesDel_noAF
Pathogenic
0.20
CADD
Benign
23
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.88
D
Eigen
Uncertain
0.40
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Uncertain
0.83
D
LIST_S2
Benign
0.86
D
M_CAP
Pathogenic
0.56
D
MetaRNN
Uncertain
0.62
D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Uncertain
2.5
M
MutationTaster
Benign
0.93
D
PrimateAI
Benign
0.47
T
PROVEAN
Uncertain
-2.4
N
REVEL
Pathogenic
0.69
Sift
Uncertain
0.014
D
Sift4G
Benign
0.11
T
Polyphen
1.0
D
Vest4
0.25
MVP
0.95
MPC
0.35
ClinPred
0.31
T
GERP RS
4.6
Varity_R
0.76
gMVP
0.58

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: rs138384960; hg19: chr12-113830907; API