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rs780102016

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP2

The NM_178862.3(STT3B):c.619A>G(p.Ile207Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000217 in 1,613,674 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

STT3B
NM_178862.3 missense

Scores

2
9
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.32
Variant links:
Genes affected
STT3B (HGNC:30611): (STT3 oligosaccharyltransferase complex catalytic subunit B) The protein encoded by this gene is a catalytic subunit of a protein complex that transfers oligosaccharides onto asparagine residues. Defects in this gene are a cause of congenital disorder of glycosylation Ix (CDG1X). [provided by RefSeq, Jun 2014]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant where missense usually causes diseases, STT3B

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
STT3BNM_178862.3 linkuse as main transcriptc.619A>G p.Ile207Val missense_variant 3/16 ENST00000295770.4
STT3BXM_017005858.2 linkuse as main transcriptc.181A>G p.Ile61Val missense_variant 3/16
STT3BXM_011533465.2 linkuse as main transcriptc.619A>G p.Ile207Val missense_variant 3/10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
STT3BENST00000295770.4 linkuse as main transcriptc.619A>G p.Ile207Val missense_variant 3/161 NM_178862.3 P1
STT3BENST00000453168.5 linkuse as main transcriptn.980A>G non_coding_transcript_exon_variant 3/101
STT3BENST00000423527.5 linkuse as main transcriptn.646A>G non_coding_transcript_exon_variant 3/102
STT3BENST00000462235.5 linkuse as main transcriptn.367A>G non_coding_transcript_exon_variant 3/73

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152002
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000239
AC:
6
AN:
251286
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135796
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:
0.0000528
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000226
AC:
33
AN:
1461672
Hom.:
0
Cov.:
32
AF XY:
0.0000261
AC XY:
19
AN XY:
727138
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:
0.0000187
Gnomad4 NFE exome
AF:
0.0000279
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
152002
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74234
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:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000565
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.0000494
AC:
6
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

STT3B-congenital disorder of glycosylation Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenomic Research Center, Shahid Beheshti University of Medical SciencesDec 18, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.088
BayesDel_addAF
Uncertain
0.070
D
BayesDel_noAF
Uncertain
0.020
Cadd
Pathogenic
26
Dann
Uncertain
1.0
DEOGEN2
Benign
0.14
T
Eigen
Uncertain
0.58
Eigen_PC
Uncertain
0.59
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.93
D
M_CAP
Benign
0.013
T
MetaRNN
Uncertain
0.50
T
MetaSVM
Benign
-0.43
T
MutationAssessor
Uncertain
2.1
M
MutationTaster
Benign
1.0
D
PrimateAI
Pathogenic
0.80
D
PROVEAN
Benign
-0.88
N
REVEL
Uncertain
0.45
Sift
Benign
0.16
T
Sift4G
Benign
0.13
T
Polyphen
0.74
P
Vest4
0.57
MutPred
0.70
Loss of catalytic residue at P209 (P = 0.0427);
MVP
0.56
MPC
1.5
ClinPred
0.38
T
GERP RS
5.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.27
gMVP
0.51

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.12
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: rs780102016; hg19: chr3-31621496; API