Reactome: A Curated Pathway Database
Results 1 to 10 of 36
Pathways (8) Reactions (13) Proteins (1) Others (14)
Protein: UniProt:Q99814 EPAS1 (Homo sapiens)
Last changed: 2014-11-25 21:16:27

Pathway: Cellular responses to stress (Homo sapiens)
Cells are subject to external molecular and physical stresses such as foreign molecules that perturb metabolic or signaling processes, and changes in temperature or pH. The ability of cells and tissues to modulate molecular processes in response to such external stresses is essential to the maintenance of tissue homeostasis (Kultz 2005)
Last changed: 2014-11-21 19:49:01

Pathway: Developmental Biology (Homo sapiens)
As a first step towards capturing the array of processes by which a fertilized egg gives rise to the diverse tissues of the body, examples of three kinds of processes have been annotated. These are aspects of the roles of cell adhesion molecules in axonal guidance and myogenesis, of transcriptional regulation in hematopoiesis (specifically, B lymphopoiesis), pancreatic beta cell and whit
Last changed: 2014-11-21 19:49:01

Pathway: Regulation of Hypoxia-inducible Factor (HIF) by oxygen (Homo sapiens)
In the presence of oxygen members of the transcription factor family HIF-alpha, comprising HIF1A, HIF2A (EPAS1), and HIF3A, are hydroxylated on proline residues by PHD1 (EGLN2), PHD2 (EGLN1), and PHD3 (EGLN3) and on asparagine residues by HIF1AN (FIH) (reviewed in Pouyssegur et al. 2006, Semenza 2007, Kaelin and Ratcliffe 2008, Nizet and Johnson 2009, Brahimi-Horn and Pouyssegur 2009, Majmundar et al.
Last changed: 2014-11-21 14:40:22

Pathway: Cellular response to hypoxia (Homo sapiens)
Oxygen plays a central role in the functioning of human cells: it is both essential for normal metabolism and toxic. To begin the annotation of stress responses in Reactome, we have annotated one aspect of cellular responses to oxygen (Semenza 2004), the role of hypoxia-inducible factor in regulating cellular transcriptional responses to changes in oxygen availability
Last changed: 2014-11-21 14:40:22

Pathway: Transcriptional regulation of pluripotent stem cells (Homo sapiens)
Pluripotent stem cells are undifferentiated cells posessing an abbreviated cell cycle (reviewed in Stein et al. 2012), a characteristic profile of gene expression (Rao et al. 2004, Kim et al. 2006, Player et al. 2006, Wang et al 2006 using mouse, International Stem Cell Initiative 2007, Assou et al. 2007, Assou et al. 2009, Ding et al. 2012 using mouse), and the ability to self-renew and generate all c
Last changed: 2014-11-21 06:36:34

Pathway: Oxygen-dependent asparagine hydroxylation of Hypoxia-inducible Factor Alpha (Homo sapiens)
HIF1AN (FIH, FIH-1) forms a homodimer that hydroxylates an asparagine residue on HIF1A and HIF2A (Hewitson et al. 2002, Lando et al. 2002, Metzen et al. 2003, Lancaster et al. 2004). The hydroxylation of the asparagine interferes with the interaction between HIF1A/HIF2A and p300, a histone acetylase, and therefore inhibits the ability of HIF1A/2A to activate transcription of target genes (Lando et al.
Last changed: 2014-11-21 06:36:34

Pathway: Regulation of gene expression by Hypoxia-inducible Factor (Homo sapiens)
HIF-alpha (HIF1A, HIF2A (EPAS1), HIF3A) is translocated to the nucleus, possibly by two pathways: importin 4/7 (Chachami et al. 2009) and importin alpha/beta (Depping et al. 2008). Once in the nucleus HIF-alpha heterodimerizes with HIF-beta (ARNT) (Wang et al. 1995, Jiang et al. 1996, Tian et al. 1997, Gu et al. 1998, Erbel et al. 2003) and recruits CBP and p300 to promoters of target genes (Ebert and
Last changed: 2014-11-21 14:40:22

Pathway: Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha (Homo sapiens)
HIF-alpha subunits, comprising HIF1A (Bruick and McKnight 2001, Ivan et al. 2001, Jaakkola et al. 2001), HIF2A (Percy et al. 2008, Furlow et al. 2009), and HIF3A (Maynard et al. 2003), are hydroxylated at proline residues by the prolyl hydroxylases PHD1 (EGLN2), PHD2 (EGLN1), and PHD3 (EGLN3) (Bruick and McKnight 2001, Berra et al. 2003, Hirsila et al. 2003, Metzen et al. 2003, Tuckerman et al. 2004, A
Last changed: 2014-11-21 14:40:22

Reaction: Proteasome proteolyzes ub-HIF-alpha (Homo sapiens)
Destruction of ubiquitinated HIF-alpha can occur in both the cytosol and nucleus (Berra et al. 2001). Upon reoxygenation of hypoxic cells HIF-alpha is ubiquitinated in the nucleus and transported to the cytosol in a complex with VHL:ElonginB:ElonginC:CUL2:RBX1 where it is destroyed (Groulx and Lee 2002, Jaakkola et al. 2001, Ivan et al. 2001)
Last changed: 2014-11-21 14:40:22

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