rs993438460

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_016047.4(SF3B6):​c.137G>A​(p.Arg46His) variant causes a missense change. The variant allele was found at a frequency of 0.0000102 in 1,570,744 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000099 ( 0 hom. )

Consequence

SF3B6
NM_016047.4 missense

Scores

7
5
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.98

Publications

1 publications found
Variant links:
Genes affected
SF3B6 (HGNC:30096): (splicing factor 3b subunit 6) This gene encodes a 14 kDa protein subunit of the splicing factor 3b complex. Splicing factor 3b associates with both the U2 and U11/U12 small nuclear ribonucleoprotein complexes (U2 snRNP) of spliceosomes. This 14 kDa protein interacts directly with subunit 1 of the splicing factor 3b complex. This 14 kDa protein also interacts directly with the adenosine that carries out the first transesterification step of splicing at the pre-mRNA branch site. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_016047.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SF3B6
NM_016047.4
MANE Select
c.137G>Ap.Arg46His
missense
Exon 2 of 4NP_057131.1Q9Y3B4

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SF3B6
ENST00000233468.5
TSL:1 MANE Select
c.137G>Ap.Arg46His
missense
Exon 2 of 4ENSP00000233468.4Q9Y3B4
SF3B6
ENST00000882797.1
c.137G>Ap.Arg46His
missense
Exon 2 of 4ENSP00000552856.1
SF3B6
ENST00000924895.1
c.137G>Ap.Arg46His
missense
Exon 2 of 4ENSP00000594954.1

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152042
Hom.:
0
Cov.:
32
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:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000809
AC:
2
AN:
247282
AF XY:
0.00000749
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000597
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000987
AC:
14
AN:
1418702
Hom.:
0
Cov.:
26
AF XY:
0.00000988
AC XY:
7
AN XY:
708176
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32580
American (AMR)
AF:
0.0000687
AC:
3
AN:
43684
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25852
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39448
South Asian (SAS)
AF:
0.0000119
AC:
1
AN:
83910
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53328
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5680
European-Non Finnish (NFE)
AF:
0.00000744
AC:
8
AN:
1075256
Other (OTH)
AF:
0.0000339
AC:
2
AN:
58964
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:
0.0000132
AC:
2
AN:
152042
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74250
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
41392
American (AMR)
AF:
0.00
AC:
0
AN:
15258
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10564
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.00000000770867), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.400
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:
0.0000282
Hom.:
0
Bravo
AF:
0.0000151
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.91
BayesDel_addAF
Benign
-0.078
T
BayesDel_noAF
Benign
-0.17
CADD
Pathogenic
33
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.027
T
Eigen
Pathogenic
0.70
Eigen_PC
Uncertain
0.66
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Benign
0.028
D
MetaRNN
Uncertain
0.48
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.2
M
PhyloP100
6.0
PrimateAI
Pathogenic
0.93
D
PROVEAN
Pathogenic
-4.9
D
REVEL
Uncertain
0.31
Sift
Benign
0.081
T
Sift4G
Uncertain
0.0040
D
Polyphen
0.99
D
Vest4
0.57
MutPred
0.49
Gain of methylation at K41 (P = 0.0446)
MVP
0.43
MPC
1.4
ClinPred
0.94
D
GERP RS
4.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.58
gMVP
0.54
Mutation Taster
=10/90
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.030
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: rs993438460; hg19: chr2-24296958; COSMIC: COSV51981298; COSMIC: COSV51981298; API