8-19405772-C-A

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_001354483.2(CSGALNACT1):​c.*8G>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00666 in 1,614,096 control chromosomes in the GnomAD database, including 48 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.0045 ( 1 hom., cov: 31)
Exomes 𝑓: 0.0069 ( 47 hom. )

Consequence

CSGALNACT1
NM_001354483.2 3_prime_UTR

Scores

2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.0750
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 -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.73).
BP6
Variant 8-19405772-C-A is Benign according to our data. Variant chr8-19405772-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 3038018.Status of the report is no_assertion_criteria_provided, 0 stars.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00447 (680/152294) while in subpopulation NFE AF= 0.00644 (438/68026). AF 95% confidence interval is 0.00594. There are 1 homozygotes in gnomad4. There are 346 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 47 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CSGALNACT1NM_001354483.2 linkc.*8G>T 3_prime_UTR_variant 9/9 ENST00000692225.2 NP_001341412.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CSGALNACT1ENST00000692225 linkc.*8G>T 3_prime_UTR_variant 9/9 NM_001354483.2 ENSP00000509853.1 Q8TDX6-1

Frequencies

GnomAD3 genomes
AF:
0.00448
AC:
681
AN:
152176
Hom.:
1
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00106
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00419
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00269
Gnomad FIN
AF:
0.0102
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00645
Gnomad OTH
AF:
0.00623
GnomAD3 exomes
AF:
0.00502
AC:
1262
AN:
251214
Hom.:
8
AF XY:
0.00520
AC XY:
706
AN XY:
135854
show subpopulations
Gnomad AFR exome
AF:
0.00142
Gnomad AMR exome
AF:
0.00231
Gnomad ASJ exome
AF:
0.000198
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00363
Gnomad FIN exome
AF:
0.00985
Gnomad NFE exome
AF:
0.00704
Gnomad OTH exome
AF:
0.00522
GnomAD4 exome
AF:
0.00689
AC:
10076
AN:
1461802
Hom.:
47
Cov.:
31
AF XY:
0.00690
AC XY:
5018
AN XY:
727208
show subpopulations
Gnomad4 AFR exome
AF:
0.000926
Gnomad4 AMR exome
AF:
0.00268
Gnomad4 ASJ exome
AF:
0.000191
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.00356
Gnomad4 FIN exome
AF:
0.00810
Gnomad4 NFE exome
AF:
0.00793
Gnomad4 OTH exome
AF:
0.00568
GnomAD4 genome
AF:
0.00447
AC:
680
AN:
152294
Hom.:
1
Cov.:
31
AF XY:
0.00465
AC XY:
346
AN XY:
74484
show subpopulations
Gnomad4 AFR
AF:
0.00106
Gnomad4 AMR
AF:
0.00418
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00269
Gnomad4 FIN
AF:
0.0102
Gnomad4 NFE
AF:
0.00644
Gnomad4 OTH
AF:
0.00617
Alfa
AF:
0.00571
Hom.:
2
Bravo
AF:
0.00390
Asia WGS
AF:
0.00115
AC:
4
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

CSGALNACT1-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesFeb 19, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.73
CADD
Benign
5.0
DANN
Benign
0.73

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: rs149973638; hg19: chr8-19263283; API