rs76457230

Variant summary

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

The NM_014918.5(CHSY1):ā€‹c.1473A>Gā€‹(p.Gln491=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0186 in 1,608,234 control chromosomes in the GnomAD database, including 550 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.028 ( 75 hom., cov: 33)
Exomes š‘“: 0.018 ( 475 hom. )

Consequence

CHSY1
NM_014918.5 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: 0.212
Variant links:
Genes affected
CHSY1 (HGNC:17198): (chondroitin sulfate synthase 1) This gene encodes a member of the chondroitin N-acetylgalactosaminyltransferase family. These enzymes possess dual glucuronyltransferase and galactosaminyltransferase activity and play critical roles in the biosynthesis of chondroitin sulfate, a glycosaminoglycan involved in many biological processes including cell proliferation and morphogenesis. Decreased expression of this gene may play a role in colorectal cancer, and mutations in this gene are a cause of temtamy preaxial brachydactyly syndrome. [provided by RefSeq, Dec 2011]

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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=-0.85).
BP6
Variant 15-101178324-T-C is Benign according to our data. Variant chr15-101178324-T-C is described in ClinVar as [Benign]. Clinvar id is 466169.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr15-101178324-T-C is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=0.212 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.0972 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CHSY1NM_014918.5 linkuse as main transcriptc.1473A>G p.Gln491= synonymous_variant 3/3 ENST00000254190.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CHSY1ENST00000254190.4 linkuse as main transcriptc.1473A>G p.Gln491= synonymous_variant 3/31 NM_014918.5 P1
CHSY1ENST00000543813.2 linkuse as main transcriptc.*788A>G 3_prime_UTR_variant, NMD_transcript_variant 3/32

Frequencies

GnomAD3 genomes
AF:
0.0277
AC:
4220
AN:
152194
Hom.:
74
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0408
Gnomad AMI
AF:
0.00329
Gnomad AMR
AF:
0.0402
Gnomad ASJ
AF:
0.0256
Gnomad EAS
AF:
0.105
Gnomad SAS
AF:
0.0178
Gnomad FIN
AF:
0.0261
Gnomad MID
AF:
0.0158
Gnomad NFE
AF:
0.0124
Gnomad OTH
AF:
0.0325
GnomAD3 exomes
AF:
0.0299
AC:
7516
AN:
251004
Hom.:
238
AF XY:
0.0272
AC XY:
3689
AN XY:
135682
show subpopulations
Gnomad AFR exome
AF:
0.0380
Gnomad AMR exome
AF:
0.0575
Gnomad ASJ exome
AF:
0.0318
Gnomad EAS exome
AF:
0.110
Gnomad SAS exome
AF:
0.0134
Gnomad FIN exome
AF:
0.0275
Gnomad NFE exome
AF:
0.0124
Gnomad OTH exome
AF:
0.0271
GnomAD4 exome
AF:
0.0176
AC:
25606
AN:
1455922
Hom.:
475
Cov.:
37
AF XY:
0.0171
AC XY:
12346
AN XY:
722976
show subpopulations
Gnomad4 AFR exome
AF:
0.0390
Gnomad4 AMR exome
AF:
0.0566
Gnomad4 ASJ exome
AF:
0.0308
Gnomad4 EAS exome
AF:
0.0927
Gnomad4 SAS exome
AF:
0.0138
Gnomad4 FIN exome
AF:
0.0274
Gnomad4 NFE exome
AF:
0.0118
Gnomad4 OTH exome
AF:
0.0246
GnomAD4 genome
AF:
0.0279
AC:
4242
AN:
152312
Hom.:
75
Cov.:
33
AF XY:
0.0284
AC XY:
2118
AN XY:
74480
show subpopulations
Gnomad4 AFR
AF:
0.0412
Gnomad4 AMR
AF:
0.0403
Gnomad4 ASJ
AF:
0.0256
Gnomad4 EAS
AF:
0.104
Gnomad4 SAS
AF:
0.0178
Gnomad4 FIN
AF:
0.0261
Gnomad4 NFE
AF:
0.0124
Gnomad4 OTH
AF:
0.0336
Alfa
AF:
0.0199
Hom.:
20
Bravo
AF:
0.0301
Asia WGS
AF:
0.0570
AC:
197
AN:
3478
EpiCase
AF:
0.0132
EpiControl
AF:
0.0116

ClinVar

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

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingAthena DiagnosticsMay 08, 2019- -
Benign, criteria provided, single submitterclinical testingGeneDxOct 16, 2018- -
Temtamy preaxial brachydactyly syndrome Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeJan 29, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.85
CADD
Benign
0.73
DANN
Benign
0.39

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: rs76457230; hg19: chr15-101718529; COSMIC: COSV54253632; COSMIC: COSV54253632; API