EIF5A Recombinant Monoclonal Antibody

Code CSB-RA932542A0HU
Size US$210
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  • Western Blot
    Positive WB detected in: A2780 whole cell lysate, Hela whole cell lysate, MCF-7 whole cell lysate, Jurkat whole cell lysate, Raji whole cell lysate
    All lanes: EIF5A antibody at 1:2000
    Secondary
    Goat polyclonal to rabbit IgG at 1/50000 dilution
    Predicted band size: 17, 21 kDa
    Observed band size: 18 kDa
  • IHC image of CSB-RA932542A0HU diluted at 1:100 and staining in paraffin-embedded human colon cancer performed on a Leica BondTM system. After dewaxing and hydration, antigen retrieval was mediated by high pressure in a citrate buffer (pH 6.0). Section was blocked with 10% normal goat serum 30min at RT. Then primary antibody (1% BSA) was incubated at 4℃ overnight. The primary is detected by a Goat anti-rabbit IgG polymer labeled by HRP and visualized using 0.05% DAB.
  • Immunofluorescence staining of Hela Cells with CSB-RA932542A0HU at 1:50, counter-stained with DAPI. The cells were fixed in 4% formaldehyde, permeated by 0.2% TritonX-100, and blocked in 10% normal Goat Serum. The cells were then incubated with the antibody overnight at 4℃. Nuclear DNA was labeled in blue with DAPI. The secondary antibody was FITC-conjugated AffiniPure Goat Anti-Rabbit IgG (H+L).
  • Overlay histogram showing Jurkat cells stained with CSB-RA932542A0HU (red line) at 1:50. The cells were fixed with 70% Ethylalcohol (18h) and then incubated in 10% normal goat serum to block non-specific protein-protein interactions followedby the antibody (1µg/1*106 cells) for 1 h at 4℃.The secondary antibody used was FITC-conjugated goat anti-rabbit IgG (H+L) at 1/200 dilution for 30min at 4℃. Control antibody (green line) was Rabbit IgG (1µg/1*106 cells) used under the same conditions. Acquisition of >10,000 events was performed.
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Product Details

Uniprot No.
Target Names
EIF5A
Alternative Names
Eukaryotic translation initiation factor 5A-1 (eIF-5A-1) (eIF-5A1) (Eukaryotic initiation factor 5A isoform 1) (eIF-5A) (Rev-binding factor) (eIF-4D), EIF5A
Species Reactivity
Human
Immunogen
A synthesized peptide derived from human eIF5A
Immunogen Species
Homo sapiens (Human)
Conjugate
Non-conjugated
Clonality
Monoclonal
Isotype
Rabbit IgG
Clone No.
5E1
Purification Method
Affinity-chromatography
Concentration
It differs from different batches. Please contact us to confirm it.
Buffer
Rabbit IgG in phosphate buffered saline, pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
Form
Liquid
Tested Applications
ELISA, WB, IHC, IF, FC
Recommended Dilution
Application Recommended Dilution
WB 1:500-1:5000
IHC 1:50-1:200
IF 1:20-1:200
FC 1:20-1:200
Troubleshooting and FAQs
Storage
Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
Lead Time
Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Description

The EIF5A recombinant monoclonal antibody preparation employs protein and DNA recombinant technology. Initially, mice were immunized with a synthesized peptide derived from human EIF5A. After a specific period, spleen cells were aseptically collected, and their total RNA was extracted. The cDNA transcribed from the extracted RNA underwent was used for PCR amplification of the EIF5A antibody gene. The obtained gene was introduced into a vector, which was then transfected into host cells and cultured. The EIF5A recombinant monoclonal antibody was purified using affinity chromatography from the cell culture supernatant and then extensively verified for use in ELISA, WB, IHC, IF, and FC experiments to detect human EIF5A protein.

EIF5A is a protein that plays a role in protein synthesis. Specifically, it is involved in the first step of translation, which is the process of synthesizing proteins from mRNA templates. EIF5A is required for the proper formation of the initiation complex, which consists of the small ribosomal subunit, mRNA, and initiation factors. It also interacts with other translation factors, such as eIF1, eIF2, and eIF3, to facilitate the assembly of the initiation complex. Additionally, EIF5A has been implicated in other cellular processes, including mRNA transport, RNA processing, and cell proliferation.

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Target Background

Function
mRNA-binding protein involved in translation elongation. Has an important function at the level of mRNA turnover, probably acting downstream of decapping. Involved in actin dynamics and cell cycle progression, mRNA decay and probably in a pathway involved in stress response and maintenance of cell wall integrity. With syntenin SDCBP, functions as a regulator of p53/TP53 and p53/TP53-dependent apoptosis. Regulates also TNF-alpha-mediated apoptosis. Mediates effects of polyamines on neuronal process extension and survival. May play an important role in brain development and function, and in skeletal muscle stem cell differentiation. Also described as a cellular cofactor of human T-cell leukemia virus type I (HTLV-1) Rex protein and of human immunodeficiency virus type 1 (HIV-1) Rev protein, essential for mRNA export of retroviral transcripts.
Gene References into Functions
  1. EIF5A1 is a vital regulator of epithelial ovarian cancer proliferation and progression. PMID: 29428664
  2. Molecular structure of the exportin Xpo4 in complex with RanGTP and the hypusine-containing translation factor eIF5A has been reported. PMID: 27306458
  3. the depletion of eIF5A leads to endoplasmic reticulum stress, an unfolded protein response and up-regulation of chaperone expression in HeLa cells. PMID: 27180817
  4. Findings indicate that eIF5A-PEAK1-YAP signaling contributes to PDAC development by regulating an STF program associated with increased tumorigenicity. PMID: 28381547
  5. eIF5A1 isoform A has a role in mitochondrial function. PMID: 27414022
  6. eIF5A-2 protein was highly expressed in gastric cancer tissues PMID: 26282002
  7. Upregulation of translation initiation factor 5a observed in thalassemia is a novel finding and plays a protective role toward cell survival under oxidative stress. PMID: 26403856
  8. Our results suggest that functional, hypusinated eIF5A is necessary for HIF-1alpha expression during hypoxia and that eIF5A is an attractive target for cancer therapy. PMID: 26773503
  9. findings also implicate the eIF5A/RhoA/ROCK module as a potential new therapeutic target to treat metastatic PDAC cells PMID: 26483550
  10. eIF5A has been shown to regulate a number of gene products specifically, termed the eIF5A regulon, and its role in translating proline-rich sequences has recently been identified. PMID: 25979826
  11. eIF5A proteins utilize PEAK1 as a downstream effector to drive pancreatic ductal adenocarcinoma (PDAC) pathogenesis. PMID: 25261239
  12. Mature eIF5A (hypusinated form) is not involved in the autophagic pathway. PMID: 25218134
  13. The findings that eIF5A and EF-P are important for specific cellular processes and play a role in the relief of ribosome stalling caused by specific amino acid sequences PMID: 24402910
  14. Data suggest a regulatory mechanism for the pro-apoptotic protein eukaryotic translation initiation factor 5A1 (eIF5A1) in which its level is possibly modulated by NF-kappaB in lung cells. PMID: 24491565
  15. Data indicate that the signal of EIF5A2, MYCN, and MCL1 genes is decreased in hydroxyurea (HU) and gemcitabine (GEM) treated UACC-1598 ovarian cancer cell line. PMID: 23991020
  16. mature eIF5A controls a translational network of cancer-driving genes, termed the eIF5A regulon, at the levels of mRNA abundance and translation PMID: 24220243
  17. The expression of eIF5A-2 was up-regulated following EMT phenotype changes in A549 cells, which correlated with enhanced tumor invasion and metastatic capabilities. PMID: 23733422
  18. Altered expression of Hsc70 and eIF5A-1 may cause defects in nucleocytoplasmic transport and play a role in esophageal carcinogenesis. PMID: 23539416
  19. Overexpression of EIF5A is associated with early-onset colorectal cancer. PMID: 23322277
  20. acetylation regulates the subcellular localization of eIF5A2 PMID: 23132580
  21. a novel role for miR-331-3p and miR-642-5p in the control of prostate cancer cell growth via the regulation of DOHH expression and eIF5A activity. PMID: 22908221
  22. identified PCAF as the major cellular acetyltransferase of eIF5A, and HDAC6 and SIRT2 as its major deacetylases. Inhibition of the deacetylases or impaired hypusination increased acetylation of eIF5A, leading to nuclear accumulation. PMID: 22771473
  23. HIV-1 Rev cofactors Sam68, eIF5A, hRIP, and DDX3 also function in the translation of HIV-1 RNA. PMID: 21360055
  24. hybrid exercise increases expression of eukaryotic translation initiation factor 5A (EIFSA), peroxisomal biogenesis factor 6 (PEX6) and histone cluster 1 H4 (HIST1H4), compared with electrical stimulation alone PMID: 21778671
  25. findings suggested that overexpression of eIF5A-2 correlates with local invasion of NSCLC, and might serve as an adverse prognostic marker of survival for stage I NSCLC patients PMID: 20830705
  26. loss of eIF5A activity by this SSAT1-mediated acetylation confirms the strict structural requirement for the hypusine side chain and suggests a possible regulation of eIF5A by hypusine acetylation/deacetylation PMID: 20942800
  27. High eIF5A expression is associated with hepatocellular carcinoma. PMID: 19998337
  28. These observations collectively indicate that unhypusinated eIF5A1 plays a central role in the regulation of apoptosis. PMID: 20232312
  29. These data support the importance of eIF5A and hypusine formation in HIV-1 gene expression. PMID: 19825182
  30. Heat stress-induced loss of eukaryotic initiation factor 5A (eIF-5A) in a human pancreatic cancer cell line PMID: 11870779
  31. Subcellular distribution of eIF-5A by indirect immunofluorescent staining and by direct visualization of green fluorescent protein tagged eIF-5A (GFP-eIF5A) PMID: 12210765
  32. Patients having a higher eIF-5A protein expression showed a relatively poorer survival suggesting the use of eIF-5A as prognostic marker in lung adenocarcinoma. PMID: 12687616
  33. EIF-5A expression inhibition by antisense oligodeoxynucleotides significantly enhanced the stimulating effect of GM-CSF on cell growth. Therefore, the eIF-5A accumulation played important roles in the apoptosis induced by UP inhibitors. PMID: 12894223
  34. eIF5A may be a regulator of p53, and syntenin might regulate p53 by balancing the regulation of eIF5A signaling to p53 for apoptosis PMID: 15371445
  35. These findings suggest that the failure to detect eIF5A-2 protein even in eIF5A-2 mRNA positive cells is, at least in part, due to inefficient translation. PMID: 16519677
  36. Recombinant human eIF-5A was crystallized by the hanging-drop vapor diffusion method PMID: 16522190
  37. molecular model for the human eIF5A protein based on the crystal structure of the eIF5A from Leishmania brasiliensis PMID: 16842744
  38. data suggest that eIF5A mediates important cellular processes like cell viability and senescence through its effects on the stability of certain mRNAs PMID: 16987817
  39. analysis of differences in global protein expression in BCR-ABL-positive K562 cells treated with or without imatinib revealed down-regulation of eIF5A; hypusination inhibitors exerted an antiproliferative effect PMID: 17008552
  40. These findings collectively indicate that unhypusinated eIF5A may have pro-apoptotic functions and that eIF5A is rapidly translocated to the nucleus following the induction of apoptotic cell death PMID: 17187778
  41. analysis of the deoxyhypusine hydroxylase-eukaryotic translation initiation factor (eIF5A) interaction PMID: 17213197
  42. Mutational analyses of human eIF5A-1--identification of amino acid residues critical for eIF5A activity and hypusine modification PMID: 18067580
  43. Results suggest that the stability of eIF5A may have an important role in determining the fate of the particular cell type after severe heat stress. PMID: 19160416
  44. These findings provide strong evidence that the hypusine modification of eIF5A dictates its localization in the cytoplasmic compartment where it is required for protein synthesis. PMID: 19379712
  45. Eukaryotic initiation factor 5A (eIF5A) (eIF-4D, eIF-5A) stimulates ribosomal peptidyltransferase activity, transport of HIV-1-mRNAs and binds exportins 1 and 4. Contains hypusine at lys 50. Human EIF5A1 and EIF5A2 encode two isoforms: eIF5AI and eIF5AII. PMID: 11161802

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Subcellular Location
Cytoplasm. Nucleus. Endoplasmic reticulum membrane; Peripheral membrane protein; Cytoplasmic side. Nucleus, nuclear pore complex. Note=Hypusine modification promotes the nuclear export and cytoplasmic localization and there was a dynamic shift in the localization from predominantly cytoplasmic to primarily nuclear under apoptotic inducing conditions.
Protein Families
EIF-5A family
Tissue Specificity
Expressed in umbilical vein endothelial cells and several cancer cell lines (at protein level).
Database Links

HGNC: 3300

OMIM: 600187

KEGG: hsa:1984

STRING: 9606.ENSP00000336702

UniGene: Hs.104825

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