Western Blot: HIF-1 alpha Antibody (HA111) [NB100-296] - Detection of HIF-1 alpha (125-130 kDa) from human placental villous explant total protein using NB100-296. (explants were subjected to 21 and 2% oxygen for 4 ...read more
Immunohistochemistry-Paraffin: HIF-1 alpha Antibody (HA111) [NB100-296] - HIF-1 antibody was tested in human ovarian cancer tumor xenograft using DAB with hematoxylin counterstain.
IP usage was reported in scientific literature (PMID: 18222538). In IHC-P, staining was observed in the nucleus of human ovarian cancer tumor. Prior to immunostaining paraffin tissues, antigen retrieval with sodium citrate buffer (pH 6.0) is recommended. **Nuclear extracts should be used for WB analysis.
93 kDa. Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.
HIF1 (hypoxia-inducible factor 1), a heterodimeric transcription factor complex central to cellular response to hypoxia, consists of two subunits (HIF-1 alpha and HIF-1 beta) which are basic helix-loop-helix proteins of the PAS (Per, ARNT, Sim) family. Expression of HIF-1 alpha protein is regulated by cellular oxygen level alterations as well as in oxygen-independent manner via different cytokines (through the PI3K-AKT-mTOR pathway), growth factors, oncogenic activation, or loss of tumor suppressor function etc. In normoxic cells, HIF-1 alpha is proline hydroxylated leading to a conformational change that promotes its binding to the VHL (von Hippel Lindau) protein E3 ligase complex; ubiquitination and followed by rapid proteasomal degradation. Hypoxia as well as chemical hydroxylase inhibitors (desferrioxamine, cobalt etc.) inhibit HIF-1 alpha degradation and lead to its accumulation in the cells, whereas, contrastingly, HIF-1 beta/ARNT (AhR nuclear translocator) remains stable under both conditions. Besides their critical role in hypoxic response, HIF1s regulates the transcription of genes responsible for angiogenesis, erythropoiesis/iron-metabolism, glucose metabolism, cell proliferation/survival, adipogenesis, carotid body formation, B lymphocyte development and immune reactions.
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.
FAQs for HIF-1 alpha Antibody (NB100-296). (Showing 1 - 4 of 4 FAQs).
Why is there a difference between the theoretical MW for HIF1A and the observed MW for HIF-1 alpha?
HIF1A, like many other proteins, has post-translational modifications. Depending on the size, amount and nature of the post-translational modifications, it can cause subtle to very large changes in molecular weight.
Which antibody(ies) do you recommend for the detection of HIF-1a by immunohistochemistry in the sections of paraffin-embedded mouse liver samples? I would appreciate if you can give me several choices and rank them in the order of performance. My goal is to distinguish HIF upregulation by prolyl hydroxylase inhibitor in different liver cells.
All of our antibodies are of high quality and are well tested/validated in species/applications we list on the datasheet. However, as desired by you, I am suggesting you four HIF-1 alpha antibodies based upon customer reviews, as well as the number of peer reviewed publications in which these products has been cited by researchers from reputed institutes. (1) HIF-1 alpha Antibody (H1alpha67) (cat# NB100-105) (cited in at least 218 peer reviewed publications) (2) HIF-1 alpha Antibody (cat# NB100-479) (cited in at least 51 peer reviewed publications) (3) HIF-1 alpha Antibody (H1alpha67) (cat# NB100-123 ) (cited in at least 38 peer reviewed publications) (4) HIF-1 alpha Antibody (cat# NB100-449 ) (cited in at least 31 peer reviewed publications).
I would like to know, does it exist path for detection HIF 1 in the venous blood before and after revascularization of the leg?
We are not entirely sure if HIF-1 alpha will be present in the leg after revascularization. It may be present but you may want to search the literature to see if this has been looked at before. If not, then this would certainly be an experiment worth doing.
What is the molecular weight (kDa) of protein HIF 1 alpha in western blot?
The theoretical molecular weight of HIF 1-alpha is ~93kDa, however, you will likely see a band between 100-120kDa due to phosphorylation.
HIF-1 Alpha: Infographic Encoded by the HIF1A gene, HIF-1 alpha has a critical role in cellular response to hypoxia. In hypoxic conditions, HIF-1 alpha activates the transcription of several genes to facilitate metabolic reaction for lack of oxygen. In normoxic conditions, HI... Read full blog post.
Controlling the HIF-1 Switch Hypoxia-inducible factor-1 is a major transcription factor composed of two subunits: HIF-1alpha and HIF-1 beta. Under normoxic conditions, HIF-1 alpha is targeted to proteosomal degradation via ubiquitination. On the other hand during hypoxic conditio... Read full blog post.
Heat Shock Proteins: An Overview Heat Shock Proteins (HSPs) are a ubiquitous group of molecular chaperone proteins that have evolved unique mechanisms, within their host cells, to facilitate survival in hostile environments such as heat, oxidative (hypoxia), pH and cold. Under permis... Read full blog post.
HIF Antibodies: Beyond HIF-1 alpha The hypoxia inducible factors are a family of heterodimeric transcription factors which are activated in response to lowered oxygen levels, or hypoxia. Although it may seem that HIF-1 alpha receives all the attention, other HIF antibodies, such as the... Read full blog post.
Hypoxia-Inducible Factors and Homeostasis Hypoxia-Inducible Factor-1 (HIF-1) is a highly conserved heterodimeric transcription factor. Novus' antibody catalogue contains an extensive range of both HIF-1 alpha and HIF-1 beta, useful for hypoxia, angiogenesis, cancer and many other areas of res... Read full blog post.
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