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GeneBe

15-101177757-G-C

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_014918.5(CHSY1):c.2040C>G(p.Ala680=) variant causes a synonymous change. The variant allele was found at a frequency of 0.000083 in 1,614,176 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.00045 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000044 ( 0 hom. )

Consequence

CHSY1
NM_014918.5 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 3.73
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 Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.48).
BP6
Variant 15-101177757-G-C is Benign according to our data. Variant chr15-101177757-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 733205.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CHSY1NM_014918.5 linkuse as main transcriptc.2040C>G p.Ala680= synonymous_variant 3/3 ENST00000254190.4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CHSY1ENST00000254190.4 linkuse as main transcriptc.2040C>G p.Ala680= synonymous_variant 3/31 NM_014918.5 P1
CHSY1ENST00000543813.2 linkuse as main transcriptc.*1355C>G 3_prime_UTR_variant, NMD_transcript_variant 3/32

Frequencies

GnomAD3 genomes
AF:
0.000453
AC:
69
AN:
152168
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00157
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.000955
GnomAD3 exomes
AF:
0.0000996
AC:
25
AN:
250882
Hom.:
0
AF XY:
0.0000884
AC XY:
12
AN XY:
135724
show subpopulations
Gnomad AFR exome
AF:
0.00138
Gnomad AMR exome
AF:
0.0000867
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000445
AC:
65
AN:
1461890
Hom.:
0
Cov.:
46
AF XY:
0.0000371
AC XY:
27
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.00173
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.000453
AC:
69
AN:
152286
Hom.:
0
Cov.:
33
AF XY:
0.000416
AC XY:
31
AN XY:
74454
show subpopulations
Gnomad4 AFR
AF:
0.00156
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000945
Alfa
AF:
0.0000564
Hom.:
0
Bravo
AF:
0.000536

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Temtamy preaxial brachydactyly syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeAug 26, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.48
Cadd
Benign
11
Dann
Benign
0.69

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: rs145837770; hg19: chr15-101717962; API