chr15-40471221-C-T

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_130468.4(CHST14):c.8C>T(p.Pro3Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000427 in 1,405,156 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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: 0.0000032 ( 0 hom. )

Consequence

CHST14
NM_130468.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 3.12

Publications

0 publications found

Variant links:

Genes affected

CHST14 (HGNC:24464): (carbohydrate sulfotransferase 14) This gene encodes a member of the HNK-1 family of sulfotransferases. The encoded protein transfers sulfate to the C-4 hydroxyl of N-acetylgalactosamine residues in dermatan sulfate. Mutations in this gene have been associated with adducted thumb-clubfoot syndrome.[provided by RefSeq, Mar 2010]

CHST14 Gene-Disease associations (from GenCC):

Ehlers-Danlos syndrome, musculocontractural type 1
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, G2P, PanelApp Australia, Ambry Genetics, Labcorp Genetics (formerly Invitae)
Ehlers-Danlos syndrome, musculocontractural type
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

CHST14 links:

ENSG00000302612 (HGNC:):

ENSG00000302612 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.2880423).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CHST14	NM_130468.4 link	c.8C>T	p.Pro3Leu	missense_variant	Exon 1 of 1	ENST00000306243.7	NP_569735.1	Q8NCH0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CHST14	ENST00000306243.7 link	c.8C>T	p.Pro3Leu	missense_variant	Exon 1 of 1	6	NM_130468.4	ENSP00000307297.6	Q8NCH0
CHST14	ENST00000559991.1 link	c.8C>T	p.Pro3Leu	missense_variant	Exon 1 of 2	5		ENSP00000453882.1	H0YN65
ENSG00000302612	ENST00000788112.1 link	n.151+434G>A		intron_variant	Intron 1 of 4

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151840

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

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

GnomAD4 exome

AF:

0.00000319

AC:

AN:

1253316

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

613284

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

24060

American (AMR)

AF:

0.0000730

AC:

AN:

13702

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

17646

East Asian (EAS)

AF:

0.00

AC:

AN:

29466

South Asian (SAS)

AF:

0.00

AC:

AN:

59300

European-Finnish (FIN)

AF:

0.00

AC:

AN:

30584

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3570

European-Non Finnish (NFE)

AF:

0.00000293

AC:

AN:

1023394

Other (OTH)

AF:

0.00

AC:

AN:

51594

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151840

Hom.:

Cov.:

AF XY:

0.0000270

AC XY:

AN XY:

74170

show subpopulations

African (AFR)

AF:

0.0000242

AC:

AN:

41376

American (AMR)

AF:

0.00

AC:

AN:

15260

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5166

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10518

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67900

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.550

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Ehlers-Danlos syndrome, musculocontractural type

Uncertain:1

Jun 27, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals affected with CHST14-related conditions. This variant is present in population databases (no rsID available, gnomAD 0.01%). This sequence change replaces proline, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 3 of the CHST14 protein (p.Pro3Leu). -

Cardiovascular phenotype

Uncertain:1

Mar 09, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.P3L variant (also known as c.8C>T), located in coding exon 1 of the CHST14 gene, results from a C to T substitution at nucleotide position 8. The proline at codon 3 is replaced by leucine, an amino acid with similar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Uncertain

0.048

BayesDel_noAF

Benign

-0.17

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.019

T;.

Eigen

Uncertain

0.27

Eigen_PC

Benign

0.20

FATHMM_MKL

Uncertain

0.84

LIST_S2

Benign

0.64

T;T

M_CAP

Pathogenic

0.92

MetaRNN

Benign

0.29

T;T

MetaSVM

Uncertain

-0.27

MutationAssessor

Benign

0.34

N;.

PhyloP100

3.1

PrimateAI

Pathogenic

0.92

PROVEAN

Benign

-0.52

N;N

REVEL

Uncertain

0.32

Sift

Pathogenic

0.0

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

D;.

Vest4

0.18

MutPred

0.22

Loss of catalytic residue at P3 (P = 0.0578);Loss of catalytic residue at P3 (P = 0.0578);

MVP

0.52

MPC

2.1

ClinPred

0.76

GERP RS

3.1

PromoterAI

0.18

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.6

Varity_R

0.16

gMVP

0.60

Mutation Taster

=71/29

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

chr15-40471221-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over