| ELK.No | ES3768 |
| Product name | SAP 155 rabbit pAb |
| Reactivity | Human;Mouse |
| Applications | WB;IHC |
| Other name | SF3B1; SAP155; Splicing factor 3B subunit 1; Pre-mRNA-splicing factor SF3b 155 kDa subunit; SF3b155; Spliceosome-associated protein 155; SAP 155 |
| Size | 50μL |
| Unit price ($) | 148 |
| Human gene ID | 23451 |
| Human Swiss-Prot | O75533 |
| Source | Rabbit |
| Isotype | IgG |
| Target | SAP 155 |
| Fields | >>Spliceosome |
| Gene name | SF3B1 |
| Protein name | Splicing factor 3B subunit 1 |
| Human gene link | View Human Gene |
| Human Swiss link | View Human Swiss-Prot |
| Mouse gene ID | |
| Mouse gene link | |
| Mouse Swiss-Prot | Q99NB9 |
| Mouse Swiss link | View Mouse Swiss-Prot |
| Rat gene ID | |
| Rat gene link | |
| Rat Swiss-Prot | |
| Rat Swiss link | |
| Immunogen | The antiserum was produced against synthesized peptide derived from human SAP 155. AA range:75-124 |
| Specificity | SAP 155 Polyclonal Antibody detects endogenous levels of SAP 155 protein. |
| Formulation | Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide. |
| Clonality | Polyclonal |
| Dilution | WB 1:500-2000;IHC-p 1:50-300 |
| Purification | The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen. |
| Concentration | 1 mg/ml |
| Storage stability | -20°C/1 year |
| Molecular Weight (Da) | |
| Observed band (KD) | 145kD |
| Background | This gene encodes subunit 1 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. The carboxy-terminal two-thirds of subunit 1 have 22 non-identical, tandem HEAT repeats that form rod-like, helical structures. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008], |
| Function | function:Subunit of the splicing factor SF3B 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. Belongs also to the minor U12-dependent spliceosome, which is involved in the splicing of rare class of nuclear pre-mRNA intron.,PTM:Phosphorylated. Phosphorylation occurs concomitantly with the splicing catalytic steps. Phosphorylation on Thr-244, Thr-248 and Thr-313 by cyclin-dependent kinases promotes interaction with PPP1R8 during mitosis.,similarity:Belongs to the SF3B1 family.,similarity:Contains 11 HEAT repeats.,subcellular location:During mitosis, transiently dispersed from the nuclear speckles to the cytoplasm.,subunit:Identified |
| Subcellular location | Nucleus . Nucleus speckle. During mitosis, transiently dispersed from the nuclear speckles to the cytoplasm. |
| Expression | Brain,Epithelium,Pooled,Testis,Uterus, |



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