19-2757775-C-T

Variant summary

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

The NM_003021.4(SGTA):​c.745G>A​(p.Gly249Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000325 in 1,598,162 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000033 ( 0 hom. )

Consequence

SGTA
NM_003021.4 missense

Scores

1
7
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.31
Variant links:
Genes affected
SGTA (HGNC:10819): (small glutamine rich tetratricopeptide repeat co-chaperone alpha) This gene encodes a protein which is capable of interacting with the major nonstructural protein of parvovirus H-1 and 70-kDa heat shock cognate protein; however, its function is not known. Since this transcript is expressed ubiquitously in various tissues, this protein may serve a housekeeping function. [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
SGTANM_003021.4 linkuse as main transcriptc.745G>A p.Gly249Ser missense_variant 10/12 ENST00000221566.7 NP_003012.1
SGTAXM_011528178.4 linkuse as main transcriptc.745G>A p.Gly249Ser missense_variant 11/13 XP_011526480.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SGTAENST00000221566.7 linkuse as main transcriptc.745G>A p.Gly249Ser missense_variant 10/121 NM_003021.4 ENSP00000221566 P1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152206
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:
0.0000941
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000713
AC:
16
AN:
224472
Hom.:
0
AF XY:
0.000107
AC XY:
13
AN XY:
121144
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000636
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000584
Gnomad SAS exome
AF:
0.000223
Gnomad FIN exome
AF:
0.000162
Gnomad NFE exome
AF:
0.0000394
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000332
AC:
48
AN:
1445956
Hom.:
0
Cov.:
31
AF XY:
0.0000362
AC XY:
26
AN XY:
717936
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000237
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000254
Gnomad4 SAS exome
AF:
0.000180
Gnomad4 FIN exome
AF:
0.0000575
Gnomad4 NFE exome
AF:
0.0000199
Gnomad4 OTH exome
AF:
0.0000837
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152206
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74366
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:
0.0000941
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000540
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.0000991
AC:
12

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 GeneticsJun 07, 2023The c.745G>A (p.G249S) alteration is located in exon 10 (coding exon 9) of the SGTA gene. This alteration results from a G to A substitution at nucleotide position 745, causing the glycine (G) at amino acid position 249 to be replaced by a serine (S). 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
0.10
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.27
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.34
T
Eigen
Uncertain
0.21
Eigen_PC
Benign
0.15
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.96
D
M_CAP
Benign
0.023
T
MetaRNN
Uncertain
0.60
D
MetaSVM
Benign
-0.99
T
MutationAssessor
Uncertain
2.2
M
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.67
T
PROVEAN
Uncertain
-2.7
D
REVEL
Benign
0.18
Sift
Benign
0.14
T
Sift4G
Benign
0.22
T
Polyphen
0.95
P
Vest4
0.80
MutPred
0.32
Loss of glycosylation at S248 (P = 0.0369);
MVP
0.53
MPC
1.5
ClinPred
0.23
T
GERP RS
4.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.31
gMVP
0.53

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.14
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: rs760579851; hg19: chr19-2757773; API