7-2432883-G-A

Variant names:

• chr7-2432883-G-A
• rs17132393
• NM_018641.5:c.244G>A

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_018641.5(CHST12):​c.244G>A​(p.Asp82Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000446 in 1,613,570 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 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: 0.000048 (0 hom.)
• Consequence: CHST12 NM_018641.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.681
• Publications: 1 publications found

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]

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.03444791).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018641.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CHST12	NM_018641.5	MANE Select	c.244G>A	p.Asp82Asn	missense	Exon 2 of 2	NP_061111.1	Q9NRB3
	CHST12	NM_001243794.2		c.244G>A	p.Asp82Asn	missense	Exon 2 of 2	NP_001230723.1	Q9NRB3
	CHST12	NM_001243795.2		c.244G>A	p.Asp82Asn	missense	Exon 2 of 2	NP_001230724.1	Q9NRB3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CHST12	ENST00000618655.2	TSL:1 MANE Select	c.244G>A	p.Asp82Asn	missense	Exon 2 of 2	ENSP00000481912.1	Q9NRB3
	CHST12	ENST00000258711.7	TSL:1	c.244G>A	p.Asp82Asn	missense	Exon 2 of 2	ENSP00000258711.6	Q9NRB3
	CHST12	ENST00000852327.1		c.244G>A	p.Asp82Asn	missense	Exon 2 of 2	ENSP00000522386.1

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152218 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.000193

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000562 AC: 14 AN: 249178 AF XY: 0.0000370

Gnomad AFR exome AF: 0.0000630

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000329

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000624

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000479 AC: 70 AN: 1461234 Hom.: 0 Cov.: 32 AF XY: 0.0000399 AC XY: 29 AN XY: 726946

African (AFR) AF: 0.0000299 AC: 1 AN: 33472

American (AMR) AF: 0.00 AC: 0 AN: 44720

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26124

East Asian (EAS) AF: 0.00108 AC: 43 AN: 39692

South Asian (SAS) AF: 0.00 AC: 0 AN: 86248

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52970

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.0000216 AC: 24 AN: 1111860

Other (OTH) AF: 0.0000331 AC: 2 AN: 60380

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152336 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74494

African (AFR) AF: 0.0000241 AC: 1 AN: 41576

American (AMR) AF: 0.00 AC: 0 AN: 15306

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.000193 AC: 1 AN: 5180

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10626

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68028

Other (OTH) AF: 0.00 AC: 0 AN: 2116

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000227

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000116 AC: 1

ExAC AF: 0.0000824 AC: 10

EpiCase AF: 0.00

EpiControl AF: 0.000119

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.074
BayesDel_addAF	Benign	-0.49	T
BayesDel_noAF	Benign	-0.63
CADD	Benign	6.6
DANN	Benign	0.92
DEOGEN2	Benign	0.0064	T
Eigen	Benign	-1.0
Eigen_PC	Benign	-1.1
FATHMM_MKL	Benign	0.023	N
LIST_S2	Benign	0.42	T
M_CAP	Benign	0.032	D
MetaRNN	Benign	0.034	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.0	M
PhyloP100		0.68
PrimateAI	Benign	0.24	T
PROVEAN	Benign	0.26	N
REVEL	Benign	0.063
Sift	Benign	0.33	T
Sift4G	Benign	0.49	T
Polyphen		0.0010	B
Vest4		0.081
MVP		0.68
MPC		0.51
ClinPred		0.022	T
GERP RS		-1.4
Varity_R		0.030
gMVP		0.35
Mutation Taster		=98/2	polymorphism

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

Other links and lift over

dbSNP: rs17132393; hg19: chr7-2472518; COSMIC: COSV51675509; COSMIC: COSV51675509;