NM_006842.3:c.703A>G

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_006842.3(SF3B2):​c.703A>G​(p.Thr235Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000087 in 1,609,976 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000069 ( 0 hom. )

Consequence

SF3B2
NM_006842.3 missense

Scores

1
18

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.742

Publications

0 publications found
Variant links:
Genes affected
SF3B2 (HGNC:10769): (splicing factor 3b subunit 2) This gene encodes subunit 2 of the splicing factor 3b protein complex. Splicing factor 3b, together with splicing factor 3a and a 12S RNA unit, forms the U2 small nuclear ribonucleoproteins complex (U2 snRNP). The splicing factor 3b/3a complex binds pre-mRNA upstream of the intron's branch site in a sequence-independent manner and may anchor the U2 snRNP to the pre-mRNA. Splicing factor 3b is also a component of the minor U12-type spliceosome. Subunit 2 associates with pre-mRNA upstream of the branch site at the anchoring site. Subunit 2 also interacts directly with subunit 4 of the splicing factor 3b complex. Subunit 2 is a highly hydrophilic protein with a proline-rich N-terminus and a glutamate-rich stretch in the C-terminus. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.025611013).
BP6
Variant 11-66057301-A-G is Benign according to our data. Variant chr11-66057301-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 3160820.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAdExome4 at 10 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SF3B2NM_006842.3 linkc.703A>G p.Thr235Ala missense_variant Exon 7 of 22 ENST00000322535.11 NP_006833.2 Q13435
SF3B2XM_005273726.5 linkc.700A>G p.Thr234Ala missense_variant Exon 7 of 22 XP_005273783.1
SF3B2XM_011544740.4 linkc.700A>G p.Thr234Ala missense_variant Exon 7 of 22 XP_011543042.1
SF3B2XM_017017144.3 linkc.697A>G p.Thr233Ala missense_variant Exon 7 of 22 XP_016872633.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SF3B2ENST00000322535.11 linkc.703A>G p.Thr235Ala missense_variant Exon 7 of 22 1 NM_006842.3 ENSP00000318861.6 Q13435

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152052
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000773
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000600
AC:
15
AN:
250086
AF XY:
0.0000442
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000816
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000686
AC:
10
AN:
1457806
Hom.:
0
Cov.:
29
AF XY:
0.00000827
AC XY:
6
AN XY:
725540
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33426
American (AMR)
AF:
0.00
AC:
0
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26116
East Asian (EAS)
AF:
0.000252
AC:
10
AN:
39678
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86188
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53364
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5756
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1108280
Other (OTH)
AF:
0.00
AC:
0
AN:
60278
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000263
AC:
4
AN:
152170
Hom.:
0
Cov.:
31
AF XY:
0.0000538
AC XY:
4
AN XY:
74398
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41500
American (AMR)
AF:
0.00
AC:
0
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.000775
AC:
4
AN:
5162
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10592
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68004
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.0000494
AC:
6

ClinVar

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

Submissions by phenotype

Inborn genetic diseases Benign:1
Jan 31, 2024
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.056
BayesDel_addAF
Benign
-0.41
T
BayesDel_noAF
Benign
-0.46
CADD
Benign
18
DANN
Benign
0.96
DEOGEN2
Benign
0.014
T;T;T;.;.
Eigen
Benign
-0.38
Eigen_PC
Benign
-0.17
FATHMM_MKL
Benign
0.62
D
LIST_S2
Benign
0.82
T;T;T;T;T
M_CAP
Benign
0.0017
T
MetaRNN
Benign
0.026
T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.0
.;N;.;.;.
PhyloP100
0.74
PrimateAI
Uncertain
0.76
T
PROVEAN
Benign
-0.30
N;N;N;N;N
REVEL
Benign
0.039
Sift
Benign
0.13
T;T;T;T;T
Sift4G
Benign
0.98
T;T;T;T;T
Polyphen
0.0
.;B;.;.;.
Vest4
0.31
MVP
0.44
MPC
0.44
ClinPred
0.041
T
GERP RS
4.1
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.7
Varity_R
0.034
gMVP
0.21
Mutation Taster
=93/7
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: rs187615832; hg19: chr11-65824772; API