FIH-1/HIF-1AN Antibody (162c) [FITC]


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Product Details

Reactivity HuSpecies Glossary
Applications WB, IHC, IHC-P
Please see the vial label for concentration. If unlisted please contact technical services.

FIH-1/HIF-1AN Antibody (162c) [FITC] Summary

Full length human Factor Inhibiting HIF-1 protein [Swiss-Prot# Q9NWT6]
Protein G purified
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Packaging, Storage & Formulations

Store at 4C in the dark.
FITC (A=495, E=519)
0.05% Sodium Azide
Please see the vial label for concentration. If unlisted please contact technical services.
Protein G purified


Application Notes
This Factor Inhibiting HIF-1 antibody is useful for Immunocytochemistry/Immunofluorescence, Immunohistochemistry paraffin embedded sections and Western blot analysis where a band can be seen at 40 kDa. Prior to immunostaining paraffin tissues, antigen retrieval with sodium citrate buffer (pH 6.0) is recommended.

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.
Theoretical MW
40 kDa

Reactivity Notes


Alternate Names for FIH-1/HIF-1AN Antibody (162c) [FITC]

  • DKFZp762F1811
  • EC
  • factor inhibiting HIF1
  • Factor inhibiting HIF-1
  • FIH1
  • FIH1FIH-1
  • FLJ20615
  • FLJ22027
  • HIF1AN
  • HIF-1AN
  • hypoxia inducible factor 1, alpha subunit inhibitor
  • hypoxia-inducible factor 1-alpha inhibitor
  • Hypoxia-inducible factor asparagine hydroxylase
  • Peptide-aspartate beta-dioxygenase


Factor inhibiting HIF1 (FIH1) is an asparaginyl hydroxylase enzyme that regulates HIF's transcriptional activity by hydroxylating HIF-1 alpha at 'Asp-803' in the CAD (C-terminal transactivation domain). Hydroxylation via PHDs followed by proteosome degradation is another mechanism that regulates HIF1, however, FIH1 is able to exercise the control even under severe hypoxic conditions, when PHD enzymes fail to do so. Localized mainly in cytoplasm, FIH1 functions as oxygen sensor and FIH1 interaction with NOTCH1 results in its nuclear localization whereas FIH1-ABPA3 interaction leads to its perinuclear localization. During normoxic conditions, FIH1 hydroxylates a conserved asparaginyl residue within CTAD of HIF-1 alpha/HIF-2 alpha, leading to steric clash that prevents the recruitment of the co-activators p300 and CBP. On the other hand, under hypoxic conditions, FIH1 is inactive, which results in activation of HIF-alpha signaling. FIH1 is involved in transcriptional repression through interaction with HIF1A, VHL and HDAC and hydroxylates specific Asn residues within ARD (ankyrin repeat domains) of NFKB1, NFKBIA, NOTCH1, ASB4, PPP1R12A as well as other ARD-containing proteins. FIH1 also hydroxylates Asp and His residues within ARDs of ANK1 and TNKS2, respectively. FIH1 has the ability to negatively regulate NOTCH1 activity thus accelerating myogenic differentiation, and positively regulates ASB4 activity which promotes vascular differentiation. FIH1-Mint3 binding affects FIH1's ability to modify HIF-1 alpha in an oxygen-independent manner and FIH1-Bax interaction plays inhibitory role in apoptosis.


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.

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Product General Protocols

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Video Protocols

WB Video Protocol

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Secondary Antibodies


Isotype Controls

Other Available Formats

Allophycocyanin Labeled NBP1-30333APC
Biotin Labeled NBP1-30333B
DyLight 350 Labeled NBP1-30333UV
DyLight 405 Labeled NBP1-30333V
DyLight 405LS Labeled NBP1-30333V3
DyLight 488 Labeled NBP1-30333G
DyLight 550 Labeled NBP1-30333R
DyLight 650 Labeled NBP1-30333C
DyLight 680 Labeled NBP1-30333FR
DyLight 755 Labeled NBP1-30333IR
HRP Labeled NBP1-30333H
PE Labeled NBP1-30333PE
PerCP Labeled NBP1-30333PCP

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Contact Information

Product PDFs


Gene Symbol HIF1AN

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