7-2432652-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_018641.5(CHST12):​c.13C>T​(p.Arg5Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000274 in 1,607,972 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

CHST12
NM_018641.5 missense

Scores

1
6
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.441
Variant links:
Genes affected
CHST12 (HGNC:17423): (carbohydrate sulfotransferase 12) The protein encoded by this gene belongs to the sulfotransferase 2 family. It is localized to the golgi membrane, and catalyzes the transfer of sulfate to position 4 of the N-acetylgalactosamine (GalNAc) residue of chondroitin and desulfated dermatan sulfate. Chondroitin sulfate constitutes the predominant proteoglycan present in cartilage, and is distributed on the surfaces of many cells and extracellular matrices. Alternatively spliced transcript variants differing only in their 5' UTRs have been found for this gene. [provided by RefSeq, Aug 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.34647804).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CHST12NM_018641.5 linkuse as main transcriptc.13C>T p.Arg5Trp missense_variant 2/2 ENST00000618655.2 NP_061111.1 Q9NRB3A0A024R860

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CHST12ENST00000618655.2 linkuse as main transcriptc.13C>T p.Arg5Trp missense_variant 2/21 NM_018641.5 ENSP00000481912.1 Q9NRB3
CHST12ENST00000258711.7 linkuse as main transcriptc.13C>T p.Arg5Trp missense_variant 2/21 ENSP00000258711.6 Q9NRB3
CHST12ENST00000432336.1 linkuse as main transcriptc.13C>T p.Arg5Trp missense_variant 2/22 ENSP00000411207.1 C9J991

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152234
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000482
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:
0.0000323
AC:
8
AN:
247568
Hom.:
0
AF XY:
0.0000298
AC XY:
4
AN XY:
134226
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000145
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000329
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000899
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.0000275
AC:
40
AN:
1455738
Hom.:
0
Cov.:
31
AF XY:
0.0000263
AC XY:
19
AN XY:
722860
show subpopulations
Gnomad4 AFR exome
AF:
0.000210
Gnomad4 AMR exome
AF:
0.000179
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000233
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000199
Gnomad4 OTH exome
AF:
0.0000167
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152234
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74362
show subpopulations
Gnomad4 AFR
AF:
0.0000482
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:
0.0000284
Hom.:
0
Bravo
AF:
0.0000567
ExAC
AF:
0.0000247
AC:
3

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 GeneticsDec 10, 2024The c.13C>T (p.R5W) alteration is located in exon 2 (coding exon 1) of the CHST12 gene. This alteration results from a C to T substitution at nucleotide position 13, causing the arginine (R) at amino acid position 5 to be replaced by a tryptophan (W). 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
0.13
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.16
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.020
T;T;.
Eigen
Benign
0.18
Eigen_PC
Benign
0.056
FATHMM_MKL
Benign
0.14
N
LIST_S2
Uncertain
0.92
D;.;D
M_CAP
Uncertain
0.24
D
MetaRNN
Benign
0.35
T;T;T
MetaSVM
Benign
-0.33
T
MutationAssessor
Uncertain
2.6
M;M;.
PrimateAI
Uncertain
0.65
T
PROVEAN
Benign
-2.3
.;N;N
REVEL
Benign
0.28
Sift
Uncertain
0.0010
.;D;D
Sift4G
Pathogenic
0.0010
D;D;D
Polyphen
1.0
D;D;.
Vest4
0.74
MutPred
0.38
Loss of disorder (P = 0.011);Loss of disorder (P = 0.011);Loss of disorder (P = 0.011);
MVP
0.86
MPC
1.4
ClinPred
0.37
T
GERP RS
2.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.6
Varity_R
0.33
gMVP
0.88

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: rs778630466; hg19: chr7-2472287; API