rs151135732

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_022900.5(CASD1):c.637T>C(p.Tyr213His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000406 in 1,610,298 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00043 ( 2 hom. )

Consequence

CASD1
NM_022900.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.21

Publications

3 publications found

Variant links:

Genes affected

CASD1 (HGNC:16014): (CAS1 domain containing 1) Enables N-acetylneuraminate 7-O(or 9-O)-acetyltransferase activity. Involved in carbohydrate metabolic process. Is integral component of Golgi membrane. [provided by Alliance of Genome Resources, Apr 2022]

CASD1 links:

SGCE (HGNC:10808): (sarcoglycan epsilon) This gene encodes the epsilon member of the sarcoglycan family. Sarcoglycans are transmembrane proteins that are components of the dystrophin-glycoprotein complex, which link the actin cytoskeleton to the extracellular matrix. Unlike other family members which are predominantly expressed in striated muscle, the epsilon sarcoglycan is more broadly expressed. Mutations in this gene are associated with myoclonus-dystonia syndrome. This gene is imprinted, with preferential expression from the paternal allele. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. A pseudogene associated with this gene is located on chromosome 2. [provided by RefSeq, Oct 2016]

SGCE Gene-Disease associations (from GenCC):

myoclonic dystonia 11
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Illumina
myoclonus-dystonia syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

SGCE links:

ENSG00000309657 (HGNC:):

ENSG00000309657 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.20915705).

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CASD1	NM_022900.5 link	c.637T>C	p.Tyr213His	missense_variant	Exon 8 of 18	ENST00000297273.9	NP_075051.4	Q96PB1Q8WZ77

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CASD1	ENST00000297273.9 link	c.637T>C	p.Tyr213His	missense_variant	Exon 8 of 18	1	NM_022900.5	ENSP00000297273.4		Q96PB1

Frequencies

GnomAD3 genomes

AF:

0.000223

AC:

AN:

152218

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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:

0.000353

Gnomad OTH

AF:

0.00191

GnomAD2 exomes

AF:

0.000212

AC:

AN:

250414

AF XY:

0.000214

show subpopulations

Gnomad AFR exome

AF:

0.0000617

Gnomad AMR exome

AF:

0.000232

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000389

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000425

AC:

620

AN:

1457962

Hom.:

Cov.:

AF XY:

0.000415

AC XY:

301

AN XY:

725496

show subpopulations

African (AFR)

AF:

0.000180

AC:

AN:

33392

American (AMR)

AF:

0.000246

AC:

AN:

44692

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26096

East Asian (EAS)

AF:

0.00

AC:

AN:

39542

South Asian (SAS)

AF:

0.00

AC:

AN:

86068

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53368

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5370

European-Non Finnish (NFE)

AF:

0.000519

AC:

576

AN:

1109224

Other (OTH)

AF:

0.000448

AC:

AN:

60210

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.465

Heterozygous variant carriers

110

138

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000223

AC:

AN:

152336

Hom.:

Cov.:

AF XY:

0.000201

AC XY:

AN XY:

74486

show subpopulations

African (AFR)

AF:

0.0000721

AC:

AN:

41582

American (AMR)

AF:

0.000196

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000353

AC:

AN:

68014

Other (OTH)

AF:

0.00189

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.506

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000409

Hom.:

Bravo

AF:

0.000223

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000465

AC:

ExAC

AF:

0.000165

AC:

EpiCase

AF:

0.000327

EpiControl

AF:

0.000237

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 20, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.637T>C (p.Y213H) alteration is located in exon 8 (coding exon 8) of the CASD1 gene. This alteration results from a T to C substitution at nucleotide position 637, causing the tyrosine (Y) at amino acid position 213 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

0.091

BayesDel_addAF

Benign

-0.37

BayesDel_noAF

Benign

-0.45

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.035

Eigen

Uncertain

0.36

Eigen_PC

Uncertain

0.39

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.91

M_CAP

Benign

0.0095

MetaRNN

Benign

0.21

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.7

PhyloP100

3.2

PrimateAI

Pathogenic

0.80

PROVEAN

Benign

0.0

REVEL

Benign

0.12

Sift

Benign

0.58

Sift4G

Benign

0.52

Polyphen

0.97

Vest4

0.46

MVP

0.32

MPC

0.97

ClinPred

0.14

GERP RS

5.3

Varity_R

0.12

gMVP

0.58

Mutation Taster

=85/15

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.

rs151135732

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over