NM_006842.3:c.733C>T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 2P and 6B. PM1BP4_ModerateBS2

The NM_006842.3(SF3B2):c.733C>T(p.Arg245Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000749 in 1,601,576 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

SF3B2
NM_006842.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.42

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]

SF3B2 links:

ENSG00000255038 (HGNC:):

ENSG00000255038 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

PM1

In a modified_residue Omega-N-methylarginine (size 0) in uniprot entity SF3B2_HUMAN

BP4

Computational evidence support a benign effect (MetaRNN=0.16793698).

BS2

High AC in GnomAdExome4 at 9 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SF3B2	NM_006842.3 link	c.733C>T	p.Arg245Trp	missense_variant	Exon 7 of 22	ENST00000322535.11	NP_006833.2	Q13435
SF3B2	XM_005273726.5 link	c.730C>T	p.Arg244Trp	missense_variant	Exon 7 of 22		XP_005273783.1
SF3B2	XM_011544740.4 link	c.730C>T	p.Arg244Trp	missense_variant	Exon 7 of 22		XP_011543042.1
SF3B2	XM_017017144.3 link	c.727C>T	p.Arg243Trp	missense_variant	Exon 7 of 22		XP_016872633.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SF3B2	ENST00000322535.11 link	c.733C>T	p.Arg245Trp	missense_variant	Exon 7 of 22	1	NM_006842.3	ENSP00000318861.6		Q13435

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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:

0.00

GnomAD2 exomes

AF:

0.0000120

AC:

AN:

249848

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000621

AC:

AN:

1449390

Hom.:

Cov.:

AF XY:

0.00000416

AC XY:

AN XY:

721760

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33260

American (AMR)

AF:

0.0000224

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26038

East Asian (EAS)

AF:

0.00

AC:

AN:

39652

South Asian (SAS)

AF:

0.00

AC:

AN:

86018

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53288

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5754

European-Non Finnish (NFE)

AF:

0.00000636

AC:

AN:

1100716

Other (OTH)

AF:

0.0000167

AC:

AN:

59948

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152186

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74346

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41442

American (AMR)

AF:

0.000196

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68034

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.642

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Nov 03, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.733C>T (p.R245W) alteration is located in exon 7 (coding exon 7) of the SF3B2 gene. This alteration results from a C to T substitution at nucleotide position 733, causing the arginine (R) at amino acid position 245 to be replaced by a tryptophan (W). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.36

BayesDel_addAF

Benign

-0.042

BayesDel_noAF

Benign

-0.28

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.024

T;T;T;.;.

Eigen

Benign

-0.19

Eigen_PC

Benign

-0.0015

FATHMM_MKL

Benign

0.62

LIST_S2

Uncertain

0.91

D;D;D;D;D

M_CAP

Benign

0.013

MetaRNN

Benign

0.17

T;T;T;T;T

MetaSVM

Benign

-0.90

MutationAssessor

Benign

1.8

.;L;.;.;.

PhyloP100

1.4

PrimateAI

Pathogenic

0.90

PROVEAN

Benign

-1.8

N;N;D;D;D

REVEL

Benign

0.065

Sift

Uncertain

0.0010

D;D;D;D;D

Sift4G

Uncertain

0.0050

D;D;D;D;D

Polyphen

0.016

.;B;.;.;.

Vest4

0.46

MutPred

0.22

.;Loss of methylation at R245 (P = 0.0285);.;.;.;

MVP

0.24

MPC

1.3

ClinPred

0.91

GERP RS

4.3

RBP_binding_hub_radar

0.92

RBP_regulation_power_radar

2.8

Varity_R

0.22

gMVP

0.18

Mutation Taster

=83/17

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

NM_006842.3:c.733C>T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over