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Rabbit Anti-phospho-Aconitase 1 (Ser138) antibody
Iron metabolism is essential for sustaining mammalian homeostasis. Iron uptake and distribution is a highly regulated process in mammalian cells that is monitored by two iron sensing proteins; iron regulatory protein-1 and -2 (IRP-1 and -2), also known as iron responsive element-binding protein-1 and -2 (IRE–BP-1 and -2) or aconitase 1 and 2. IRP-1 and IRP-2 are important soluble regulatory factors that mediate iron uptake and storage in mammalian cells. They are capable of either repressing translation or enhancing mRNA stability by associating with stem-loop motifs known as iron-responsive elements (IREs). IRPs respond to stress mediators, iron concentration and signaling factors, including nitrogen monoxide, cytokines and hydrogen peroxide.
Function:
Iron sensor. Binds a 4Fe-4S cluster and functions as aconitase when cellular iron levels are high. Functions as mRNA binding protein that regulates uptake, sequestration and utilization of iron when cellular iron levels are low. Binds to iron-responsive elements (IRES) in target mRNA species when iron levels are low. Binding of a 4Fe-4S cluster precludes RNA binding.
Subunit:
Interacts (when associated with the 4Fe-4S) with FBXL5. Interacts with frataxin(81-210).
Subcellular Location:
Cytoplasm.
Similarity:
Belongs to the aconitase/IPM isomerase family.
SWISS:
P21399
Gene ID:
48
Database links:
Entrez Gene: 48 Human
Entrez Gene: 11428 Mouse
Entrez Gene: 50655 Rat
Omim: 100176 Human
SwissProt: P21399 Human
SwissProt: P28271 Mouse
SwissProt: Q63270 Rat
Unigene: 567229 Human
Unigene: 331547 Mouse
Unigene: 35934 Rat
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