rs397515324
Variant summary
Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PVS1_StrongPM2PP5_Very_Strong
The NM_005850.5(SF3B4):c.1006C>T(p.Arg336Ter) variant causes a stop gained change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★).
Frequency
Genomes: not found (cov: 32)
Consequence
SF3B4
NM_005850.5 stop_gained
NM_005850.5 stop_gained
Scores
3
3
1
Clinical Significance
Conservation
PhyloP100: 4.51
Genes affected
SF3B4 (HGNC:10771): (splicing factor 3b subunit 4) This gene encodes one of four subunits of the splicing factor 3B. The protein encoded by this gene cross-links to a region in the pre-mRNA immediately upstream of the branchpoint sequence in pre-mRNA in the prespliceosomal complex A. It also may be involved in the assembly of the B, C and E spliceosomal complexes. In addition to RNA-binding activity, this protein interacts directly and highly specifically with subunit 2 of the splicing factor 3B. This protein contains two N-terminal RNA-recognition motifs (RRMs), consistent with the observation that it binds directly to pre-mRNA. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 14 ACMG points.
PVS1
?
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most 50 bp of the penultimate exon, not predicted to undergo nonsense mediated mRNA decay. There are 5 pathogenic variants in the truncated region.
PM2
?
Very rare variant in population databases, with high coverage;
PP5
?
Variant 1-149923922-G-A is Pathogenic according to our data. Variant chr1-149923922-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 65407.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SF3B4 | NM_005850.5 | c.1006C>T | p.Arg336Ter | stop_gained | 5/6 | ENST00000271628.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SF3B4 | ENST00000271628.9 | c.1006C>T | p.Arg336Ter | stop_gained | 5/6 | 1 | NM_005850.5 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome Cov.: 32
GnomAD4 exome
Cov.:
32
GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ClinVar
Significance: Pathogenic
Submissions summary: Pathogenic:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
not provided Pathogenic:2
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Sep 19, 2019 | For these reasons, this variant has been classified as Pathogenic. Loss-of-function variants in SF3B4 are known to be pathogenic (PMID: 22541558, 23568615). This variant has been observed in an individual affected with Nager syndrome (PMID: 23568615). ClinVar contains an entry for this variant (Variation ID: 65407). This variant is not present in population databases (ExAC no frequency). This sequence change creates a premature translational stop signal (p.Arg336*) in the SF3B4 gene. It is expected to result in an absent or disrupted protein product. - |
Pathogenic, criteria provided, single submitter | clinical testing | GeneDx | Jun 04, 2021 | Not observed at significant frequency in large population cohorts (Lek et al., 2016); Nonsense variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss-of-function is a known mechanism of disease; Reported in ClinVar as pathogenic (ClinVar Variant ID# 65407; Landrum et al., 2016); This variant is associated with the following publications: (PMID: 26582918, 27535533, 23568615) - |
Nager syndrome Pathogenic:1
Pathogenic, no assertion criteria provided | literature only | OMIM | Aug 01, 2013 | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
Cadd
Pathogenic
Dann
Uncertain
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
MutationTaster
Benign
A
Vest4
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at