chr7-100180567-C-T

Position:

chr7-100180567-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 3P and 5B. PM2PP2BP4_StrongBS1_Supporting

The NM_001282717.2(STAG3):c.11C>T(p.Pro4Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000703 in 1,606,964 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000044 ( 0 hom. )

Consequence

STAG3
NM_001282717.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.76

Variant links:

Genes affected

STAG3 (HGNC:11356): (STAG3 cohesin complex component) The protein encoded by this gene is expressed in the nucleus and is a subunit of the cohesin complex which regulates the cohesion of sister chromatids during cell division. A mutation in this gene is associated with premature ovarian failure. Alternate splicing results in multiple transcript variants encoding distinct isoforms. This gene has multiple pseudogenes. [provided by RefSeq, Apr 2014]

STAG3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), STAG3. . Gene score misZ 1.6577 (greater than the threshold 3.09). Trascript score misZ 3.2175 (greater than threshold 3.09). GenCC has associacion of gene with spermatogenic failure 61, premature ovarian failure 8.

BP4

Computational evidence support a benign effect (MetaRNN=0.027985752).

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000322 (49/152288) while in subpopulation AFR AF= 0.00101 (42/41558). AF 95% confidence interval is 0.000768. There are 0 homozygotes in gnomad4. There are 23 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
STAG3	NM_001282717.2 linkuse as main transcript	c.11C>T	p.Pro4Leu	missense_variant	2/34	ENST00000615138.5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
STAG3	ENST00000615138.5 linkuse as main transcript	c.11C>T	p.Pro4Leu	missense_variant	2/34	1	NM_001282717.2	A2

Frequencies

GnomAD3 genomes

AF:

0.000309

AC:

AN:

152170

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000393

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:

0.00

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.0000875

AC:

AN:

251436

Hom.:

AF XY:

0.0000662

AC XY:

AN XY:

135898

show subpopulations

Gnomad AFR exome

AF:

0.000923

Gnomad AMR exome

AF:

0.0000578

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:

0.0000440

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000440

AC:

AN:

1454676

Hom.:

Cov.:

AF XY:

0.0000414

AC XY:

AN XY:

724258

show subpopulations

Gnomad4 AFR exome

AF:

0.00120

Gnomad4 AMR exome

AF:

0.0000895

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:

0.0000109

Gnomad4 OTH exome

AF:

0.000133

GnomAD4 genome

AF:

0.000322

AC:

AN:

152288

Hom.:

Cov.:

AF XY:

0.000309

AC XY:

AN XY:

74468

show subpopulations

Gnomad4 AFR

AF:

0.00101

Gnomad4 AMR

AF:

0.000392

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000474

Alfa

AF:

0.0000833

Hom.:

Bravo

AF:

0.000336

ESP6500AA

AF:

0.00204

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000123

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 03, 2022

The c.11C>T (p.P4L) alteration is located in exon 2 (coding exon 1) of the STAG3 gene. This alteration results from a C to T substitution at nucleotide position 11, causing the proline (P) at amino acid position 4 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

Dec 01, 2023

STAG3: PM2, BP4 -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.43

CADD

Benign

DANN

Benign

0.97

DEOGEN2

Benign

0.16

T;.;.;T;.;T;T;.

Eigen

Benign

-0.16

Eigen_PC

Benign

-0.29

FATHMM_MKL

Benign

0.16

LIST_S2

Benign

0.67

.;.;T;T;T;T;T;T

M_CAP

Benign

0.012

MetaRNN

Benign

0.028

T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.94

MutationAssessor

Benign

1.8

L;L;L;.;.;L;.;.

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.36

PROVEAN

Benign

-1.6

N;N;.;.;N;N;D;N

REVEL

Benign

0.12

Sift

Pathogenic

0.0

D;D;.;.;D;D;D;D

Sift4G

Pathogenic

0.0

D;D;D;D;D;D;D;D

Polyphen

0.94

P;.;.;.;.;P;.;.

Vest4

0.21

MVP

0.40

MPC

0.47

ClinPred

0.069

GERP RS

4.6

Varity_R

0.16

gMVP

0.31

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over