The epitope recognized by this antibody maps to a region between residue 450 and the C-terminus (residue 502) of human PHD4/HIF Prolyl Hydroxylase 4 using the numbering given in entry NP_808808.1 (GeneID 54681).
Immunogen affinity purified
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This PHD4/HIF Prolyl Hydroxylase 4 antibody is useful for Western Blot where a band is seen at ~50 kDa. Use in Immunocytochemistry/immunofluorescence, Immunohistochemistry-Paraffin and Electron Microscopy reported in scientific literature (PMID 17003483) 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.
HIF prolyl 4-hydroxylases (HIF-P4Hs or PHDs) are proyl hydroxylase domain-containing enzymes (PHD1, PHD2, PHD3, and P4H-TM) that mediate key physiological responses to hypoxia by modulating HIF1 alpha levels. PHD member proteins have a wide but varied tissue expression and PHD4/HIF Prolyl Hydroxylase 4 (P4H-TM) is a novel member of this family that localize to ER membrane as single-pass type II membrane protein with its catalytic site inside the lumen. P4H-TM is expressed mainly in pancreas, heart, skeletal muscle, brain, placenta, kidney and adrenal gland tissues and gets induced upon hypoxic trigger. P4H-TM catalyzes the post-translational formation of 4-hydroxyproline in HIF alpha proteins and hydroxylates HIF1A at 'Pro-402'/'Pro-564' sites. P4H-TM has been proposed to function as a cellular oxygen sensor and, under normoxic conditions, it targets HIF through hydroxylation for proteasomal degradation via VHL/von Hippel-Lindau ubiquitination complex. Ectopic over-expression of P4H-TM in cultured neuroblastoma cells was found to reduce HIF-1alpha ODDD reporter levels, whereas its knockdown increased HIF-1alpha protein levels. HIF-P4Hs plays a critical role in several pathologies such as myocardial infarction, stroke, peripheral vascular disease, inflammation, diabetes, carcinogenesis and severe anemias.
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.