chr3-20174570-G-A

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001199251.3(SGO1):​c.961C>T​(p.Pro321Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00137 in 1,604,132 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00079 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0014 ( 4 hom. )

Consequence

SGO1
NM_001199251.3 missense

Scores

17

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.931

Publications

2 publications found
Variant links:
Genes affected
SGO1 (HGNC:25088): (shugoshin 1) The protein encoded by this gene is a member of the shugoshin family of proteins. This protein is thought to protect centromeric cohesin from cleavage during mitotic prophase by preventing phosphorylation of a cohesin subunit. Reduced expression of this gene leads to the premature loss of centromeric cohesion, mis-segregation of sister chromatids, and mitotic arrest. Evidence suggests that this protein also protects a small subset of cohesin found along the length of the chromosome arms during mitotic prophase. An isoform lacking exon 6 has been shown to play a role in the cohesion of centrioles (PMID: 16582621 and PMID:18331714). Mutations in this gene have been associated with Chronic Atrial and Intestinal Dysrhythmia (CAID) syndrome, characterized by the co-occurrence of Sick Sinus Syndrome (SSS) and Chronic Intestinal Pseudo-obstruction (CIPO) within the first four decades of life (PMID:25282101). Fibroblast cells from CAID patients exhibited both increased cell proliferation and higher rates of senescence. Pseudogenes of this gene have been found on chromosomes 1 and 7. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2015]
SGO1-AS1 (HGNC:41081): (SGO1 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.008261681).
BS2
High Homozygotes in GnomAdExome4 at 4 AD,AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001199251.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SGO1
NM_001199251.3
MANE Select
c.961C>Tp.Pro321Ser
missense
Exon 6 of 8NP_001186180.1Q5FBB7-6
SGO1
NM_001012410.5
c.961C>Tp.Pro321Ser
missense
Exon 6 of 9NP_001012410.1Q5FBB7-1
SGO1
NM_001199252.3
c.961C>Tp.Pro321Ser
missense
Exon 6 of 9NP_001186181.1Q5FBB7-1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SGO1
ENST00000412997.6
TSL:1 MANE Select
c.961C>Tp.Pro321Ser
missense
Exon 6 of 8ENSP00000410458.1Q5FBB7-6
SGO1
ENST00000263753.8
TSL:1
c.961C>Tp.Pro321Ser
missense
Exon 6 of 9ENSP00000263753.4Q5FBB7-1
SGO1
ENST00000421451.5
TSL:1
c.961C>Tp.Pro321Ser
missense
Exon 6 of 9ENSP00000414129.1Q5FBB7-1

Frequencies

GnomAD3 genomes
AF:
0.000789
AC:
120
AN:
152060
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00166
Gnomad FIN
AF:
0.0000946
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00144
Gnomad OTH
AF:
0.000479
GnomAD2 exomes
AF:
0.000992
AC:
237
AN:
238864
AF XY:
0.00110
show subpopulations
Gnomad AFR exome
AF:
0.000125
Gnomad AMR exome
AF:
0.000244
Gnomad ASJ exome
AF:
0.000104
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000233
Gnomad NFE exome
AF:
0.00143
Gnomad OTH exome
AF:
0.00172
GnomAD4 exome
AF:
0.00143
AC:
2072
AN:
1451956
Hom.:
4
Cov.:
32
AF XY:
0.00142
AC XY:
1022
AN XY:
721630
show subpopulations
African (AFR)
AF:
0.0000612
AC:
2
AN:
32682
American (AMR)
AF:
0.000352
AC:
15
AN:
42622
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25800
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39658
South Asian (SAS)
AF:
0.00232
AC:
192
AN:
82886
European-Finnish (FIN)
AF:
0.000244
AC:
13
AN:
53242
Middle Eastern (MID)
AF:
0.000524
AC:
3
AN:
5720
European-Non Finnish (NFE)
AF:
0.00160
AC:
1775
AN:
1109406
Other (OTH)
AF:
0.00120
AC:
72
AN:
59940
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.466
Heterozygous variant carriers
0
102
204
307
409
511
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
76
152
228
304
380
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000789
AC:
120
AN:
152176
Hom.:
0
Cov.:
32
AF XY:
0.000793
AC XY:
59
AN XY:
74402
show subpopulations
African (AFR)
AF:
0.000120
AC:
5
AN:
41554
American (AMR)
AF:
0.000393
AC:
6
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00166
AC:
8
AN:
4814
European-Finnish (FIN)
AF:
0.0000946
AC:
1
AN:
10574
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.00144
AC:
98
AN:
67982
Other (OTH)
AF:
0.000474
AC:
1
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.502
Heterozygous variant carriers
0
6
12
17
23
29
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00123
Hom.:
0
Bravo
AF:
0.000589
TwinsUK
AF:
0.000809
AC:
3
ALSPAC
AF:
0.00156
AC:
6
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.00105
AC:
9
ExAC
AF:
0.00114
AC:
139

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Cardiovascular phenotype (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.070
BayesDel_addAF
Benign
-0.67
T
BayesDel_noAF
Benign
-0.76
CADD
Benign
0.23
DANN
Benign
0.37
DEOGEN2
Benign
0.0047
T
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.3
FATHMM_MKL
Benign
0.0037
N
LIST_S2
Benign
0.24
T
M_CAP
Benign
0.0040
T
MetaRNN
Benign
0.0083
T
MetaSVM
Benign
-0.99
T
PhyloP100
0.93
PrimateAI
Benign
0.28
T
PROVEAN
Benign
0.33
N
REVEL
Benign
0.038
Sift
Benign
1.0
T
Sift4G
Benign
0.97
T
Polyphen
0.0
B
Vest4
0.017
MVP
0.055
MPC
0.021
ClinPred
0.0011
T
GERP RS
2.2
Varity_R
0.014
gMVP
0.045
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs115863450; hg19: chr3-20216062; API