SF3A1

splicing factor 3a subunit 1, the group of SF3a complex|U2 small nuclear ribonucleoprotein

Basic information

Region (hg38): 22:30331988-30356919

Links

ENSG00000099995NCBI:10291OMIM:605595HGNC:10765Uniprot:Q15459AlphaFoldGenCCjaxSfariGnomADPubmedClinVar

Phenotypes

GenCC

Source: genCC

No genCC data.

ClinVar

This is a list of variants' phenotypes submitted to ClinVar and linked to the SF3A1 gene.

  • not_specified (39 variants)
  • not_provided (2 variants)
  • Malignant_lymphoma,_large_B-cell,_diffuse (1 variants)

Variants pathogenicity by type

Statistics on ClinVar variants can assist in determining whether a specific variant type in the SF3A1 gene is commonly pathogenic or not. These statistics are base on transcript: NM_000005877.6. Only rare variants are included in the table.

In the table, we include only reliable ClinVar variants with their consequences to MANE Select, Mane Plus Clinical transcripts, or transcripts with TSL equals 1. Click the count to view the source variants.

Warning: slight differences between displayed counts and the number of variants in ClinVar may occur, primarily due to (1) the application of a different transcript and/or consequence by our variant effect predictor or (2) differences in clinical significance: we classify Benign/Likely benign variants as Likely benign and Pathogenic/Likely pathogenic variants as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
0
missense
40
clinvar
40
nonsense
0
start loss
0
frameshift
1
clinvar
1
splice donor/acceptor (+/-2bp)
0
Total 1 0 40 0 0
Loading clinvar variants...

GnomAD

Source: gnomAD

GeneTypeBio TypeTranscript Coding Exons Length
SF3A1protein_codingprotein_codingENST00000215793 1624960
pLI Probability
LOF Intolerant
pRec Probability
LOF Recessive
Individuals with
no LOFs
Individuals with
Homozygous LOFs
Individuals with
Heterozygous LOFs
Defined p
0.9880.01251257380101257480.0000398
Z-Score Observed Expected Observed/Expected Mutation Rate Total Possible in Transcript
Missense4.162034520.4490.00002565176
Missense in Polyphen81244.050.33192745
Synonymous-0.2931771721.030.00001021540
Loss of Function4.96639.70.1510.00000205451

LoF frequencies by population

EthnicitySum of pLOFs p
African & African-American0.00002980.0000298
Ashkenazi Jewish0.000.00
East Asian0.00005730.0000544
Finnish0.00004620.0000462
European (Non-Finnish)0.00006350.0000615
Middle Eastern0.00005730.0000544
South Asian0.000.00
Other0.000.00

dbNSFP

Source: dbNSFP

Function
FUNCTION: Subunit of the splicing factor SF3A required for 'A' complex assembly formed by the stable binding of U2 snRNP to the branchpoint sequence (BPS) in pre-mRNA. Sequence independent binding of SF3A/SF3B complex upstream of the branch site is essential, it may anchor U2 snRNP to the pre-mRNA. May also be involved in the assembly of the 'E' complex.;
Pathway
Spliceosome - Homo sapiens (human);mRNA Processing;Metabolism of RNA;mRNA Splicing - Major Pathway;mRNA Splicing;Processing of Capped Intron-Containing Pre-mRNA (Consensus)

Recessive Scores

pRec
0.121

Intolerance Scores

loftool
0.210
rvis_EVS
-0.78
rvis_percentile_EVS
12.77

Haploinsufficiency Scores

pHI
0.758
hipred
Y
hipred_score
0.783
ghis
0.663

Essentials

essential_gene_CRISPR
E
essential_gene_CRISPR2
E
essential_gene_gene_trap
E
gene_indispensability_pred
E
gene_indispensability_score
0.729

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium

Mouse Genome Informatics

Gene name
Sf3a1
Phenotype
mortality/aging (the observable characteristics related to the ability of a mammalian organism to live and age that are manifested throughout development and life span);

Gene ontology

Biological process
mRNA 3'-splice site recognition;mRNA splicing, via spliceosome;mRNA processing
Cellular component
nucleoplasm;spliceosomal complex;U2-type spliceosomal complex;U2 snRNP;nuclear speck;U2-type prespliceosome;catalytic step 2 spliceosome
Molecular function
RNA binding;protein binding