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GeneBe

7-2432800-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_018641.5(CHST12):​c.161C>T​(p.Pro54Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000917 in 1,613,744 control chromosomes in the GnomAD database, including 1 homozygotes. 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 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000096 ( 1 hom. )

Consequence

CHST12
NM_018641.5 missense

Scores

16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.0250
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.011507034).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CHST12NM_018641.5 linkuse as main transcriptc.161C>T p.Pro54Leu missense_variant 2/2 ENST00000618655.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CHST12ENST00000618655.2 linkuse as main transcriptc.161C>T p.Pro54Leu missense_variant 2/21 NM_018641.5 P1
CHST12ENST00000258711.7 linkuse as main transcriptc.161C>T p.Pro54Leu missense_variant 2/21 P1
CHST12ENST00000432336.1 linkuse as main transcriptc.161C>T p.Pro54Leu missense_variant 2/22

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152144
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:
0.000193
Gnomad SAS
AF:
0.00145
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000160
AC:
40
AN:
250166
Hom.:
0
AF XY:
0.000214
AC XY:
29
AN XY:
135400
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.00121
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000958
AC:
140
AN:
1461482
Hom.:
1
Cov.:
32
AF XY:
0.000150
AC XY:
109
AN XY:
727066
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000101
Gnomad4 SAS exome
AF:
0.00146
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.000116
GnomAD4 genome
AF:
0.0000525
AC:
8
AN:
152262
Hom.:
0
Cov.:
32
AF XY:
0.0000806
AC XY:
6
AN XY:
74442
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00145
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.000198
AC:
24
Asia WGS
AF:
0.000866
AC:
3
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 GeneticsJun 28, 2023The c.161C>T (p.P54L) 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 161, causing the proline (P) at amino acid position 54 to be replaced by a leucine (L). 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
0.077
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
0.29
DANN
Benign
0.82
DEOGEN2
Benign
0.0041
T;T;.
Eigen
Benign
-1.6
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.095
N
LIST_S2
Benign
0.44
T;.;T
M_CAP
Benign
0.060
D
MetaRNN
Benign
0.012
T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.14
N;N;.
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.28
T
Sift4G
Benign
0.56
T;T;T
Polyphen
0.0040
B;B;.
Vest4
0.050
MutPred
0.19
Loss of sheet (P = 0.0483);Loss of sheet (P = 0.0483);Loss of sheet (P = 0.0483);
MVP
0.37
MPC
0.53
ClinPred
0.010
T
GERP RS
-4.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Varity_R
0.020
gMVP
0.30

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: rs563115579; hg19: chr7-2472435; API