3-187051332-C-G

Variant summary

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

The NM_173216.2(ST6GAL1):ā€‹c.691C>Gā€‹(p.Leu231Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000192 in 1,613,972 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.0000066 ( 0 hom., cov: 32)
Exomes š‘“: 0.000021 ( 0 hom. )

Consequence

ST6GAL1
NM_173216.2 missense

Scores

7
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.80
Variant links:
Genes affected
ST6GAL1 (HGNC:10860): (ST6 beta-galactoside alpha-2,6-sialyltransferase 1) This gene encodes a member of glycosyltransferase family 29. The encoded protein is a type II membrane protein that catalyzes the transfer of sialic acid from CMP-sialic acid to galactose-containing substrates. The protein, which is normally found in the Golgi but can be proteolytically processed to a soluble form, is involved in the generation of the cell-surface carbohydrate determinants and differentiation antigens HB-6, CD75, and CD76. This gene has been incorrectly referred to as CD75. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2017]

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
ST6GAL1NM_173216.2 linkuse as main transcriptc.691C>G p.Leu231Val missense_variant 5/8 ENST00000169298.8 NP_775323.1 P15907-1
ST6GAL1NM_001353916.2 linkuse as main transcriptc.691C>G p.Leu231Val missense_variant 3/6 NP_001340845.1
ST6GAL1NM_003032.3 linkuse as main transcriptc.691C>G p.Leu231Val missense_variant 4/7 NP_003023.1 P15907-1
ST6GAL1NM_173217.2 linkuse as main transcriptc.-3C>G 5_prime_UTR_variant 4/7 NP_775324.1 P15907-2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ST6GAL1ENST00000169298.8 linkuse as main transcriptc.691C>G p.Leu231Val missense_variant 5/81 NM_173216.2 ENSP00000169298.3 P15907-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152180
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000119
AC:
3
AN:
251388
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135864
show subpopulations
Gnomad AFR exome
AF:
0.0000615
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:
0.0000205
AC:
30
AN:
1461792
Hom.:
0
Cov.:
31
AF XY:
0.0000220
AC XY:
16
AN XY:
727192
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:
0.0000252
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152180
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74344
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000847
Hom.:
0
Bravo
AF:
0.0000453
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000116
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 GeneticsMar 04, 2024The c.691C>G (p.L231V) alteration is located in exon 5 (coding exon 2) of the ST6GAL1 gene. This alteration results from a C to G substitution at nucleotide position 691, causing the leucine (L) at amino acid position 231 to be replaced by a valine (V). 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
0.19
BayesDel_addAF
Benign
-0.064
T
BayesDel_noAF
Benign
-0.31
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.082
T;T
Eigen
Uncertain
0.35
Eigen_PC
Uncertain
0.37
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Uncertain
0.93
.;D
M_CAP
Benign
0.012
T
MetaRNN
Uncertain
0.53
D;D
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.2
L;L
PrimateAI
Uncertain
0.60
T
PROVEAN
Benign
-0.46
N;N
REVEL
Benign
0.14
Sift
Benign
0.095
T;T
Sift4G
Benign
0.17
T;T
Polyphen
0.94
P;P
Vest4
0.63
MVP
0.082
MPC
0.30
ClinPred
0.50
D
GERP RS
4.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.32
gMVP
0.62

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: rs139818568; hg19: chr3-186769120; API