8-19405930-G-A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_001354483.2(CSGALNACT1):​c.1449C>T​(p.Asp483=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0657 in 1,614,034 control chromosomes in the GnomAD database, including 3,765 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.056 ( 269 hom., cov: 31)
Exomes 𝑓: 0.067 ( 3496 hom. )

Consequence

CSGALNACT1
NM_001354483.2 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -2.71
Variant links:
Genes affected
CSGALNACT1 (HGNC:24290): (chondroitin sulfate N-acetylgalactosaminyltransferase 1) This gene encodes an enzyme that transfers N-acetylglucosamine (GalNAc) to the core tetrasaccharide linker and to elongating chondroitin sulfate chains in proteoglycans. Knockout of the orthologous mouse gene indicates that the protein is necessary for normal cartilage development and aggrecan metabolism. Mutations in this gene are associated with multiple sclerosis progression, and with mild skeletal dysplasia and joint laxity. [provided by RefSeq, Aug 2017]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.77).
BP6
Variant 8-19405930-G-A is Benign according to our data. Variant chr8-19405930-G-A is described in ClinVar as [Benign]. Clinvar id is 1275470.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-2.71 with no splicing effect.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.0703 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CSGALNACT1NM_001354483.2 linkuse as main transcriptc.1449C>T p.Asp483= synonymous_variant 9/9 ENST00000692225.2 NP_001341412.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CSGALNACT1ENST00000692225.2 linkuse as main transcriptc.1449C>T p.Asp483= synonymous_variant 9/9 NM_001354483.2 ENSP00000509853 P1Q8TDX6-1

Frequencies

GnomAD3 genomes
AF:
0.0556
AC:
8451
AN:
152040
Hom.:
271
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0287
Gnomad AMI
AF:
0.0691
Gnomad AMR
AF:
0.0508
Gnomad ASJ
AF:
0.112
Gnomad EAS
AF:
0.0145
Gnomad SAS
AF:
0.0693
Gnomad FIN
AF:
0.0523
Gnomad MID
AF:
0.120
Gnomad NFE
AF:
0.0720
Gnomad OTH
AF:
0.0664
GnomAD3 exomes
AF:
0.0616
AC:
15497
AN:
251432
Hom.:
556
AF XY:
0.0639
AC XY:
8677
AN XY:
135878
show subpopulations
Gnomad AFR exome
AF:
0.0263
Gnomad AMR exome
AF:
0.0392
Gnomad ASJ exome
AF:
0.114
Gnomad EAS exome
AF:
0.0166
Gnomad SAS exome
AF:
0.0760
Gnomad FIN exome
AF:
0.0593
Gnomad NFE exome
AF:
0.0722
Gnomad OTH exome
AF:
0.0724
GnomAD4 exome
AF:
0.0668
AC:
97644
AN:
1461876
Hom.:
3496
Cov.:
32
AF XY:
0.0673
AC XY:
48976
AN XY:
727238
show subpopulations
Gnomad4 AFR exome
AF:
0.0278
Gnomad4 AMR exome
AF:
0.0409
Gnomad4 ASJ exome
AF:
0.114
Gnomad4 EAS exome
AF:
0.0163
Gnomad4 SAS exome
AF:
0.0729
Gnomad4 FIN exome
AF:
0.0631
Gnomad4 NFE exome
AF:
0.0691
Gnomad4 OTH exome
AF:
0.0690
GnomAD4 genome
AF:
0.0555
AC:
8452
AN:
152158
Hom.:
269
Cov.:
31
AF XY:
0.0546
AC XY:
4061
AN XY:
74370
show subpopulations
Gnomad4 AFR
AF:
0.0286
Gnomad4 AMR
AF:
0.0508
Gnomad4 ASJ
AF:
0.112
Gnomad4 EAS
AF:
0.0145
Gnomad4 SAS
AF:
0.0692
Gnomad4 FIN
AF:
0.0523
Gnomad4 NFE
AF:
0.0720
Gnomad4 OTH
AF:
0.0657
Alfa
AF:
0.0586
Hom.:
163
Bravo
AF:
0.0543
Asia WGS
AF:
0.0510
AC:
179
AN:
3478
EpiCase
AF:
0.0753
EpiControl
AF:
0.0768

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxJun 09, 2021- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.77
CADD
Benign
0.24
DANN
Benign
0.50

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: rs35971700; hg19: chr8-19263441; COSMIC: COSV59974823; API