chr19-33772295-G-GAGC

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PM4_SupportingBP6_ModerateBS2

The NM_001127895.2(CHST8):​c.514_516dupAGC​(p.Ser172dup) variant causes a conservative inframe insertion change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00379 in 1,602,556 control chromosomes in the GnomAD database, including 20 homozygotes. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0028 ( 4 hom., cov: 33)
Exomes 𝑓: 0.0039 ( 16 hom. )

Consequence

CHST8
NM_001127895.2 conservative_inframe_insertion

Scores

Not classified

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: 1.87
Variant links:
Genes affected
CHST8 (HGNC:15993): (carbohydrate sulfotransferase 8) The protein encoded by this gene belongs to the sulfotransferase 2 family. It is predominantly expressed in the pituitary gland, and is localized to the golgi membrane. This protein catalyzes the transfer of sulfate to position 4 of non-reducing N-acetylgalactosamine (GalNAc) residues in both N-glycans and O-glycans. It is responsible for sulfation of GalNAc on luteinizing hormone (LH), which is required for production of the sex hormones. Mice lacking this enzyme, exhibit increased levels of circulating LH, and precocious sexual maturation of both male and female mice. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Aug 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM4
Nonframeshift variant in NON repetitive region in NM_001127895.2. Strenght limited to Supporting due to length of the change: 1aa.
BP6
Variant 19-33772295-G-GAGC is Benign according to our data. Variant chr19-33772295-G-GAGC is described in ClinVar as [Likely_benign]. Clinvar id is 774734.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAd4 at 420 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CHST8NM_001127895.2 linkuse as main transcriptc.514_516dupAGC p.Ser172dup conservative_inframe_insertion 5/5 ENST00000650847.1 NP_001121367.1 Q9H2A9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CHST8ENST00000650847.1 linkuse as main transcriptc.514_516dupAGC p.Ser172dup conservative_inframe_insertion 5/5 NM_001127895.2 ENSP00000499084.1 Q9H2A9

Frequencies

GnomAD3 genomes
AF:
0.00276
AC:
420
AN:
152214
Hom.:
4
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000820
Gnomad AMI
AF:
0.0998
Gnomad AMR
AF:
0.00222
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000188
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00373
Gnomad OTH
AF:
0.00239
GnomAD3 exomes
AF:
0.00197
AC:
447
AN:
226458
Hom.:
4
AF XY:
0.00200
AC XY:
251
AN XY:
125744
show subpopulations
Gnomad AFR exome
AF:
0.000433
Gnomad AMR exome
AF:
0.00305
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000660
Gnomad FIN exome
AF:
0.000341
Gnomad NFE exome
AF:
0.00312
Gnomad OTH exome
AF:
0.00282
GnomAD4 exome
AF:
0.00389
AC:
5647
AN:
1450226
Hom.:
16
Cov.:
31
AF XY:
0.00371
AC XY:
2680
AN XY:
721900
show subpopulations
Gnomad4 AFR exome
AF:
0.000628
Gnomad4 AMR exome
AF:
0.00285
Gnomad4 ASJ exome
AF:
0.0000384
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000464
Gnomad4 FIN exome
AF:
0.000161
Gnomad4 NFE exome
AF:
0.00473
Gnomad4 OTH exome
AF:
0.00384
GnomAD4 genome
AF:
0.00276
AC:
420
AN:
152330
Hom.:
4
Cov.:
33
AF XY:
0.00239
AC XY:
178
AN XY:
74486
show subpopulations
Gnomad4 AFR
AF:
0.000818
Gnomad4 AMR
AF:
0.00216
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000188
Gnomad4 NFE
AF:
0.00375
Gnomad4 OTH
AF:
0.00237
Alfa
AF:
0.00367
Hom.:
2
Bravo
AF:
0.00322
EpiCase
AF:
0.00305
EpiControl
AF:
0.00368

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

CHST8-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesDec 26, 2023This 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). -
not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 31, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

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: rs758685180; hg19: chr19-34263200; API