chr7-7238375-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_020156.5(C1GALT1):​c.341G>A​(p.Arg114His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000124 in 1,613,970 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

C1GALT1
NM_020156.5 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.70
Variant links:
Genes affected
C1GALT1 (HGNC:24337): (core 1 synthase, glycoprotein-N-acetylgalactosamine 3-beta-galactosyltransferase 1) The protein encoded by this gene generates the common core 1 O-glycan structure, Gal-beta-1-3GalNAc-R, by the transfer of Gal from UDP-Gal to GalNAc-alpha-1-R. Core 1 is a precursor for many extended mucin-type O-glycans on cell surface and secreted glycoproteins. Studies in mice suggest that this gene plays a key role in thrombopoiesis and kidney homeostasis.[provided by RefSeq, Sep 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.18544081).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
C1GALT1NM_020156.5 linkuse as main transcriptc.341G>A p.Arg114His missense_variant 3/4 ENST00000436587.7 NP_064541.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
C1GALT1ENST00000436587.7 linkuse as main transcriptc.341G>A p.Arg114His missense_variant 3/45 NM_020156.5 ENSP00000389176 P1Q9NS00-1
C1GALT1ENST00000223122.4 linkuse as main transcriptc.341G>A p.Arg114His missense_variant 2/31 ENSP00000223122 P1Q9NS00-1
C1GALT1ENST00000402468.3 linkuse as main transcriptc.341G>A p.Arg114His missense_variant 2/21 ENSP00000384550 Q9NS00-2
C1GALT1ENST00000429911.5 linkuse as main transcriptc.341G>A p.Arg114His missense_variant 4/45 ENSP00000407666

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152142
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:
0.0000159
AC:
4
AN:
251418
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135886
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000123
AC:
18
AN:
1461828
Hom.:
0
Cov.:
32
AF XY:
0.00000825
AC XY:
6
AN XY:
727208
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000144
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152142
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74342
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:
0.0000712
Hom.:
0
Bravo
AF:
0.0000113
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

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 GeneticsSep 22, 2023The c.341G>A (p.R114H) alteration is located in exon 3 (coding exon 2) of the C1GALT1 gene. This alteration results from a G to A substitution at nucleotide position 341, causing the arginine (R) at amino acid position 114 to be replaced by a histidine (H). 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
0.067
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.36
CADD
Benign
16
DANN
Uncertain
0.99
DEOGEN2
Benign
0.21
.;T;T;.
Eigen
Benign
-0.31
Eigen_PC
Benign
-0.084
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Uncertain
0.90
D;D;.;D
M_CAP
Benign
0.0064
T
MetaRNN
Benign
0.19
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.17
.;N;N;N
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-0.59
N;N;N;N
REVEL
Benign
0.058
Sift
Benign
0.10
T;T;T;T
Sift4G
Benign
0.39
T;T;T;T
Polyphen
0.048, 0.0080
.;B;B;B
Vest4
0.21, 0.21, 0.17
MutPred
0.58
Loss of MoRF binding (P = 0.031);Loss of MoRF binding (P = 0.031);Loss of MoRF binding (P = 0.031);Loss of MoRF binding (P = 0.031);
MVP
0.39
MPC
0.12
ClinPred
0.13
T
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.085
gMVP
0.66

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: rs1464121065; hg19: chr7-7278006; API