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GeneBe

X-124025922-T-C

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_ModerateBP6_ModerateBS2

The NM_001042750.2(STAG2):c.123+4T>C variant causes a splice donor region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000234 in 1,141,301 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 81 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., 9 hem., cov: 21)
Exomes 𝑓: 0.00024 ( 0 hom. 72 hem. )

Consequence

STAG2
NM_001042750.2 splice_donor_region, intron

Scores

2
Splicing: ADA: 0.003827
2

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.938
Variant links:
Genes affected
STAG2 (HGNC:11355): (STAG2 cohesin complex component) The protein encoded by this gene is a subunit of the cohesin complex, which regulates the separation of sister chromatids during cell division. Targeted inactivation of this gene results in chromatid cohesion defects and aneuploidy, suggesting that genetic disruption of cohesin is a cause of aneuploidy in human cancer. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2013]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.37).
BP6
Variant X-124025922-T-C is Benign according to our data. Variant chrX-124025922-T-C is described in ClinVar as [Benign]. Clinvar id is 1164890.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Hemizygotes in GnomAd at 9 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
STAG2NM_001042750.2 linkuse as main transcriptc.123+4T>C splice_donor_region_variant, intron_variant ENST00000371145.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
STAG2ENST00000371145.8 linkuse as main transcriptc.123+4T>C splice_donor_region_variant, intron_variant 1 NM_001042750.2 P1Q8N3U4-2

Frequencies

GnomAD3 genomes
AF:
0.000182
AC:
20
AN:
110054
Hom.:
0
Cov.:
21
AF XY:
0.000278
AC XY:
9
AN XY:
32326
show subpopulations
Gnomad AFR
AF:
0.0000329
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000590
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:
0.000209
Gnomad OTH
AF:
0.00135
GnomAD3 exomes
AF:
0.000114
AC:
19
AN:
166706
Hom.:
0
AF XY:
0.000128
AC XY:
7
AN XY:
54714
show subpopulations
Gnomad AFR exome
AF:
0.0000824
Gnomad AMR exome
AF:
0.000170
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:
0.000170
Gnomad OTH exome
AF:
0.000253
GnomAD4 exome
AF:
0.000240
AC:
247
AN:
1031247
Hom.:
0
Cov.:
20
AF XY:
0.000235
AC XY:
72
AN XY:
306409
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000243
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:
0.000290
Gnomad4 OTH exome
AF:
0.000229
GnomAD4 genome
AF:
0.000182
AC:
20
AN:
110054
Hom.:
0
Cov.:
21
AF XY:
0.000278
AC XY:
9
AN XY:
32326
show subpopulations
Gnomad4 AFR
AF:
0.0000329
Gnomad4 AMR
AF:
0.000590
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000209
Gnomad4 OTH
AF:
0.00135
Alfa
AF:
0.000214
Hom.:
1
Bravo
AF:
0.000238

ClinVar

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

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeJan 06, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.37
Cadd
Benign
16
Dann
Benign
0.88

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0038
dbscSNV1_RF
Benign
0.050
SpliceAI score (max)
0.020
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: rs372118088; hg19: chrX-123159772; API