Human STIM1 Recombinant Protein (RPPB4845)
- SKU:
- RPPB4845
- Product Type:
- Recombinant Protein
- Species:
- Human
- Uniprot:
- Q13586
Description
| Product Name: | Human STIM1 Recombinant Protein |
| Product Code: | RPPB4845 |
| Size: | 25µg |
| Species: | Human |
| Target: | STIM1 |
| Synonyms: | Stromal interaction molecule 1, GOK, D11S4896E, STIM-1, STIM1. |
| Source: | Escherichia Coli |
| Physical Appearance: | Sterile filtered colorless solution. |
| Formulation: | The STIM1 protein solution (1mg/ml) contains 20mM Tris-HCl pH-7.5. |
| Stability: | Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid multiple freeze-thaw cycles. |
| Purity: | Greater than 90.0% as determined by SDS-PAGE. |
| Amino Acid Sequence: | MADQLTEEQI AEFKEAFSLF DKDGDGTITT KELGTVMRSL GQNPTEAELQ DMINEVDADG NGTIDFPEFL TMMARKMKDT DSEEEIREAF RVFDKDGNGY ISAAELRHVM TNLGEKLTDE EVDEMIREAD IDGDGQVNYE EFVQMMTAKG SMLSHSHSEK ATGTSSGANS EESTAAEFCR IDKPLCHSED EKLSFEAVRN IHKLMDDDAN GDVDVEESDE FLREDLNYHD PTVKHSTFHG EDKLISVEDL WKAWKSSEVY NWTVDEVVQW LITYVELPQY EETFRKLQLS GHAMPRLAVT NTTMTGTVLK MTDRSHRQKL QLKALDTVLF GPPLLTRHNH LKD |
STIM1 is a type-1 transmembrane protein that is necessary for store-operated Ca(2+) entry, a process of extracellular Ca(2+) influx in response to the depletion of Ca(2+) stores in the endoplasmic reticulum (ER). STIM1 localizes predominantly to the ER; upon Ca(2+) release from the ER, STIM1 translocates to the ER-plasma membrane junctions and activates Ca(2+) channels. STIM1 is an adhesion molecule involved in early hematopoiesis by mediating attachment to stromal cells. STIM1 controls the survival and/or proliferation of b-cell precursors. STIM1 gene is one of several genes located in the imprinted gene domain of 11p15.5, a significant tumor-suppressor gene region. Alterations in this region have been associated with the Beckwith-Wiedemann syndrome, Wilms tumor, rhabdomyosarcoma, adrenocrotical carcinoma, and lung, ovarian, and breast cancer. STIM1 is involved in malignancies as well as early hematopoiesis, by mediating attachment to stromal cells. STIM1 is oriented in a head-to-tail configuration with the ribonucleotide reductase 1 gene (RRM1), with the 3' end of this gene situated 1.6 kb from the 5' end of the RRM1 gene.
Recombinant STIM1 produced in E.Coli is a single, non-glycosylated polypeptide chain (aa 23-213) containing a total of 343 amino acids and having a molecular mass of 38kDa. STIM1 is fused to a 152 aa Calmodulin tag at N-terminus and purified by conventional chromatography techniques.
| UniProt Protein Function: | STIM1: Plays a role in mediating store-operated Ca(2+) entry (SOCE), a Ca(2+) influx following depletion of intracellular Ca(2+) stores. Acts as Ca(2+) sensor in the endoplasmic reticulum via its EF-hand domain. Upon Ca(2+) depletion, translocates from the endoplasmic reticulum to the plasma membrane where it activates the Ca(2+) release-activated Ca(2+) (CRAC) channel subunit, TMEM142A/ORAI1. Forms homooligomers and heterooligomers with STIM2. Interacts with ORAI1. Interacts with MAPRE1; probably required for targeting to the growing microtubule plus ends. Interacts with EFCAB4B/CRACR2A; the interaction is direct and takes place in absence of Ca(2+). Forms a complex with EFCAB4B/CRACR2A and ORAI1 at low concentration of Ca(2+), the complex dissociates at elevated Ca(2+) concentrations. Interacts with TMEM66/SARAF, promoting a slow inactivation of STIM1-dependent SOCE activity, possibly by facilitating the deoligomerization of STIM1. Ubiquitously expressed in various human primary cells and tumor cell lines. |
| UniProt Protein Details: | Protein type:Membrane protein, integral; Endoplasmic reticulum; Calcium-binding Chromosomal Location of Human Ortholog: 11p15.5 Cellular Component: microtubule; endoplasmic reticulum membrane; integral to plasma membrane; endoplasmic reticulum; integral to endoplasmic reticulum membrane Molecular Function:identical protein binding; microtubule plus-end binding; protein binding; calcium ion binding Biological Process: activation of store-operated calcium channel activity; calcium ion transport; regulation of calcium ion transport; detection of calcium ion; blood coagulation Disease: Myopathy, Tubular Aggregate, 1; Immunodeficiency 10 |
| NCBI Summary: | This gene encodes a type 1 transmembrane protein that mediates Ca2+ influx after depletion of intracellular Ca2+ stores by gating of store-operated Ca2+ influx channels (SOCs). It is one of several genes located in the imprinted gene domain of 11p15.5, an important tumor-suppressor gene region. Alterations in this region have been associated with the Beckwith-Wiedemann syndrome, Wilms tumor, rhabdomyosarcoma, adrenocrotical carcinoma, and lung, ovarian, and breast cancer. This gene may play a role in malignancies and disease that involve this region, as well as early hematopoiesis, by mediating attachment to stromal cells. Mutations in this gene are associated with fatal classic Kaposi sarcoma, immunodeficiency due to defects in store-operated calcium entry (SOCE) in fibroblasts, ectodermal dysplasia and tubular aggregate myopathy. This gene is oriented in a head-to-tail configuration with the ribonucleotide reductase 1 gene (RRM1), with the 3' end of this gene situated 1.6 kb from the 5' end of the RRM1 gene. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, May 2013] |
| UniProt Code: | Q13586 |
| NCBI GenInfo Identifier: | 21070997 |
| NCBI Gene ID: | 6786 |
| NCBI Accession: | NP_003147.2 |
| UniProt Secondary Accession: | Q13586,Q8N382, E9PQJ4, |
| UniProt Related Accession: | Q13586 |
| Molecular Weight: | 62,133 Da |
| NCBI Full Name: | stromal interaction molecule 1 isoform 2 |
| NCBI Synonym Full Names: | stromal interaction molecule 1 |
| NCBI Official Symbol: | STIM1�� |
| NCBI Official Synonym Symbols: | GOK; TAM; TAM1; IMD10; STRMK; D11S4896E�� |
| NCBI Protein Information: | stromal interaction molecule 1 |
| UniProt Protein Name: | Stromal interaction molecule 1 |
| UniProt Gene Name: | STIM1�� |
| UniProt Entry Name: | STIM1_HUMAN |
