Recombinant Human Rap guanine nucleotide exchange factor 4 (RAPGEF4), partial

Code CSB-YP820189HU
MSDS
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Source Yeast
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Code CSB-EP820189HU
MSDS
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Source E.coli
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Code CSB-EP820189HU-B
MSDS
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Source E.coli
Conjugate Avi-tag Biotinylated
E. coli biotin ligase (BirA) is highly specific in covalently attaching biotin to the 15 amino acid AviTag peptide. This recombinant protein was biotinylated in vivo by AviTag-BirA technology, which method is BriA catalyzes amide linkage between the biotin and the specific lysine of the AviTag.
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Code CSB-BP820189HU
MSDS
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Source Baculovirus
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Code CSB-MP820189HU
MSDS
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Source Mammalian cell
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Product Details

Purity
>85% (SDS-PAGE)
Target Names
Uniprot No.
Alternative Names
CAMP GEFII; cAMP regulated guanine nucleotide exchange factor II; cAMP-GEFII; cAMP-regulated guanine nucleotide exchange factor II; CAMPGEFII; CGEF 2; CGEF2; Epac 2; EPAC2; Exchange factor directly activated by cAMP 2; Exchange protein directly activated by cAMP 2; Nbla00496; Putative protein product of Nbla00496; Rap guanine nucleotide exchange factor (GEF) 4; Rap guanine nucleotide exchange factor 4; RAPGEF 4; Rapgef4; RPGF4_HUMAN
Species
Homo sapiens (Human)
Protein Length
Partial
Tag Info
Tag type will be determined during the manufacturing process.
The tag type will be determined during production process. If you have specified tag type, please tell us and we will develop the specified tag preferentially.
Form
Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer before Lyophilization
Tris/PBS-based buffer, 6% Trehalose, pH 8.0
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. Customers could use it as reference.
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Note: All of our proteins are default shipped with normal blue ice packs, if you request to ship with dry ice, please communicate with us in advance and extra fees will be charged.
Notes
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet
Please contact us to get it.

Customer Reviews and Q&A

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Target Background

Function
Guanine nucleotide exchange factor (GEF) for RAP1A, RAP1B and RAP2A small GTPases that is activated by binding cAMP. Seems not to activate RAB3A. Involved in cAMP-dependent, PKA-independent exocytosis through interaction with RIMS2.
Gene References into Functions
  1. Study identifies Epac2-Rap1 signaling as a novel feedback mechanism in the heart, which controls mitochondrial reactive oxygen species production. PMID: 27649969
  2. rs17746510, one of the three single-nucleotide polymorphisms (SNPs) in RAPGEF4 associated with cognitive decline in Chinese Alzheimer's disease (AD) patients, was significantly correlated with apathy and mood disturbance PMID: 27598965
  3. Data show that Epac2 is activated by cAMP and changes its structure. It is involved in cAMP-mediated signal transduction through activation of the Ras-like small GTPase and is expressed mainly in brain, neuroendocrine and endocrine tissues. [review] PMID: 26390815
  4. CALR regulated by EPAC2 in endometrial glandular epithelial cells is critical for the expression of LIF and PTGS2-mediated production of PGE2 through cAMP signaling. PMID: 25378661
  5. Follow-up replication analyses in up to an additional 21,345 participants identified three new fasting plasma glucose loci reaching genome-wide significance in or near PDK1-RAPGEF4, KANK1, and IGF1R. PMID: 25187374
  6. EPAC2-mediated CRT expression is essential for the functional and morphological differentiation of endometrial stromal cells into decidual cells PMID: 24169561
  7. Mechanism of intracellular cAMP sensor Epac2 activation: cAMP-induced conformational changes identified by amide hydrogen/deuterium exchange mass spectrometry PMID: 21454623
  8. An important time-limited role is identified for hippocampal Epac2 signaling in cognition, opening new avenues to investigate the molecular mechanisms underlying memory retrieval. PMID: 19739231
  9. Epac2 & Epac1 signaling pathways may be associated with cAMP-mediated functional differentiation and syncytialization of trophoblasts. Expression of Epac2 & Epac 1 in placenta at different stages was investigated. PMID: 20663796
  10. Studies demonstrate the occurrence of the EPAC2 splicing variant EPAC2B in adrenocortical cancer cells and reveal the involvement of EPAC2B in cAMP-induced effects on cytoskeleton integrity and cell migration. PMID: 20233795
  11. Mutations in the hinge of Epac can uncouple cAMP binding from its exchange activity. PMID: 12469113
  12. variants were present in five families, where they segregate with the autistic phenotype. PMID: 14593429
  13. Epac2 signaling plays a stimulatory role in pancreatic and intestinal endocrine cells, including proglucagon transcription and glucagon and GLP-1 production. PMID: 18854429
  14. Substitution of the conserved phenylalanine 435 with glycine facilitates the hinge bending and leads to a constitutively active Epac2 capable of stimulating nucleotide exchange in the absence of cAMP. PMID: 19553663

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Subcellular Location
Cytoplasm. Membrane; Peripheral membrane protein.
Tissue Specificity
Predominantly expressed in brain and adrenal gland. Isoform 2 is expressed in liver. Isoform 1 is expressed in liver at very low levels.
Database Links

HGNC: 16626

OMIM: 606058

KEGG: hsa:11069

STRING: 9606.ENSP00000380271

UniGene: Hs.470646

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