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(-) Description

Title :  CRYSTAL STRUCTURE OF THE HIGH AFFINITY HETERODIMER OF HIF2 ALPHA AND ARNT C-TERMINAL PAS DOMAINS WITH THE ARTIFICIAL LIGAND THS020
 
Authors :  J. M. Key, T. H. Scheuermann, P. C. Anderson, V. Daggett, K. H. Gardner
Date :  28 Apr 09  (Deposition) - 12 Jan 10  (Release) - 12 Jan 10  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.50
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Pas Domain, Heterodimer, Protein Ligand Complex. , Activator, Angiogenesis, Congenital Erythrocytosis, Developmental Protein, Differentiation, Disease Mutation, Dna-Binding, Hydroxylation, Nucleus, Phosphoprotein, Transcription, Transcription Regulation, Ubl Conjugation, Alternative Splicing, Polymorphism (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  J. Key, T. H. Scheuermann, P. C. Anderson, V. Daggett, K. H. Gardner
Principles Of Ligand Binding Within A Completely Buried Cavity In Hif2Alpha Pas-B
J. Am. Chem. Soc. V. 131 17647 2009
PubMed-ID: 19950993  |  Reference-DOI: 10.1021/JA9073062
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - ARYL HYDROCARBON RECEPTOR NUCLEAR TRANSLOCATOR
    ChainsB
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPHIS-GB1-ARNT-PAS-B
    Expression System StrainBL21(DE3)
    Expression System Taxid562
    Expression System Vector TypePLASMID
    FragmentARNT C-TERMINAL PAS DOMAIN (UNP RESIDUES 356 TO 470)
    GeneARNT, ARYL HYDROCARBON RECEPTOR NUCLEAR TRANSLOCATOR, BHLHE2
    MutationYES
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymARNT PROTEIN, CLASS E BASIC HELIX-LOOP-HELIX PROTEIN 2, BHLHE2, DIOXIN RECEPTOR, NUCLEAR TRANSLOCATOR, HYPOXIA-INDUCIBLE FACTOR 1 BETA, HIF-1 BETA
 
Molecule 2 - ENDOTHELIAL PAS DOMAIN-CONTAINING PROTEIN 1
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPHIS-GB1-HIF2APAS-B
    Expression System StrainBL21(DE3)
    Expression System Taxid562
    Expression System Vector TypePLASMID
    FragmentHIF2ALPHA C-TERMINAL PAS DOMAIN (UNP RESIDUES 239 TO 350)
    GeneEPAS1, HIF2A, HYPOXIA INDUCIBLE FACTOR 2 ALPHA, MOP2
    MutationYES
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymEPAS-1, MEMBER OF PAS PROTEIN 2, BASIC-HELIX-LOOP- HELIX-PAS PROTEIN MOP2, HYPOXIA-INDUCIBLE FACTOR 2 ALPHA, HIF-2 ALPHA, HIF2 ALPHA, HIF-1 ALPHA-LIKE FACTOR, HLF

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 1)

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name
10201Ligand/IonN-(FURAN-2-YLMETHYL)-2-NITRO-4-(TRIFLUOROMETHYL)ANILINE

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS A:248 , MET A:252 , PHE A:254 , ALA A:277 , TYR A:281 , MET A:289 , SER A:292 , VAL A:302 , SER A:304 , TYR A:307 , MET A:309 , THR A:321 , ILE A:337 , CYS A:339 , ASN A:341BINDING SITE FOR RESIDUE 020 A 351

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3H82)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 3H82)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (2, 2)

Asymmetric/Biological Unit (2, 2)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_024280R430QARNT_HUMANPolymorphism2229175BR430Q
2UniProtVAR_049537E435KARNT_HUMANPolymorphism2229176BE435K

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (1, 2)

Asymmetric/Biological Unit (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1PASPS50112 PAS repeat profile.EPAS1_HUMAN92-147
249-300
  1-
A:249-300
ARNT_HUMAN161-235
368-419
  1-
B:368-419

(-) Exons   (9, 9)

Asymmetric/Biological Unit (9, 9)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.3aENST000002637343aENSE00001875413chr2:46524541-46525076536EPAS1_HUMAN1-990--
1.5bENST000002637345bENSE00000809792chr2:46574012-46574202191EPAS1_HUMAN9-73650--
1.7cENST000002637347cENSE00000751537chr2:46583290-46583441152EPAS1_HUMAN73-123510--
1.8ENST000002637348ENSE00000751539chr2:46583863-4658394785EPAS1_HUMAN124-152290--
1.9ENST000002637349ENSE00000751542chr2:46587777-46587895119EPAS1_HUMAN152-191401A:-1-24
1.10bENST0000026373410bENSE00002181725chr2:46588024-46588229206EPAS1_HUMAN192-260691A:239-26022
1.11ENST0000026373411ENSE00000751546chr2:46596966-46597072107EPAS1_HUMAN260-296371A:260-29637
1.12bENST0000026373412bENSE00000962618chr2:46602829-46602976148EPAS1_HUMAN296-345501A:296-34550
1.13ENST0000026373413ENSE00000751550chr2:46603678-46603892215EPAS1_HUMAN345-417731A:345-3495
1.14ENST0000026373414ENSE00000962619chr2:46605033-46605226194EPAS1_HUMAN417-481650--
1.15bENST0000026373415bENSE00000962620chr2:46605796-46605906111EPAS1_HUMAN482-518370--
1.16bENST0000026373416bENSE00000962621chr2:46607366-46607856491EPAS1_HUMAN519-6821640--
1.17bENST0000026373417bENSE00000962622chr2:46608735-46608861127EPAS1_HUMAN682-724430--
1.18ENST0000026373418ENSE00000751568chr2:46609114-46609228115EPAS1_HUMAN725-763390--
1.19bENST0000026373419bENSE00000751570chr2:46609564-46609737174EPAS1_HUMAN763-821590--
1.20cENST0000026373420cENSE00001816384chr2:46611648-466138362189EPAS1_HUMAN821-870500--

2.1aENST000003585951aENSE00002062254chr1:150849244-150849019226ARNT_HUMAN1-990--
2.3ENST000003585953ENSE00001717520chr1:150830936-150830825112ARNT_HUMAN9-46380--
2.5bENST000003585955bENSE00001071957chr1:150825282-15082523845ARNT_HUMAN46-61160--
2.6ENST000003585956ENSE00000960027chr1:150818783-15081873945ARNT_HUMAN61-76160--
2.7ENST000003585957ENSE00001263986chr1:150814944-15081490045ARNT_HUMAN76-91160--
2.8bENST000003585958bENSE00000960029chr1:150812130-150811917214ARNT_HUMAN91-162720--
2.9cENST000003585959cENSE00000960030chr1:150808969-150808756214ARNT_HUMAN163-234720--
2.10bENST0000035859510bENSE00000960031chr1:150807116-150807014103ARNT_HUMAN234-268350--
2.11ENST0000035859511ENSE00000960032chr1:150804875-15080481066ARNT_HUMAN268-290230--
2.12aENST0000035859512aENSE00000960033chr1:150804379-15080429486ARNT_HUMAN290-319300--
2.13dENST0000035859513dENSE00001417988chr1:150802456-15080238077ARNT_HUMAN319-344260--
2.15bENST0000035859515bENSE00001414390chr1:150801703-150801569135ARNT_HUMAN345-389451B:355-38935
2.16ENST0000035859516ENSE00001186051chr1:150799093-15079901975ARNT_HUMAN390-414251B:390-41425
2.17ENST0000035859517ENSE00001804030chr1:150795821-150795670152ARNT_HUMAN415-465511B:415-46551
2.18bENST0000035859518bENSE00001044530chr1:150790506-150790396111ARNT_HUMAN465-502381B:465-4673
2.19cENST0000035859519cENSE00001044549chr1:150789909-15078983773ARNT_HUMAN502-526250--
2.20ENST0000035859520ENSE00001044525chr1:150789678-150789558121ARNT_HUMAN527-567410--
2.21ENST0000035859521ENSE00001044520chr1:150789366-150789264103ARNT_HUMAN567-601350--
2.22aENST0000035859522aENSE00001044548chr1:150788882-150788735148ARNT_HUMAN601-650500--
2.23aENST0000035859523aENSE00001151505chr1:150786715-150786553163ARNT_HUMAN651-705550--
2.24aENST0000035859524aENSE00001371736chr1:150785814-150785648167ARNT_HUMAN705-760560--
2.25fENST0000035859525fENSE00001855735chr1:150784586-1507821812406ARNT_HUMAN761-789290--

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it)
Chain A from PDB  Type:PROTEIN  Length:115
 aligned with EPAS1_HUMAN | Q99814 from UniProtKB/Swiss-Prot  Length:870

    Alignment length:166
                                   193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343      
          EPAS1_HUMAN   184 NLKSATWKVLHCTGQVKVYNNCPPHNSLCGYKEPLLSCLIIMCEPIQHPSHMDIPLDSKTFLSRHSMDMKFTYCDDRITELIGYHPEELLGRSAYEFYHALDSENMTKSHQNLCTKGQVVSGQYRMLAKHGGYVWLETQGTVIYNPRNLQPQCIMCVNYVLSEIEK 349
               SCOP domains d3h8                                                   2a_ A: automated matches                                                                                        SCOP domains
               CATH domains 3h82                                                   A00 A:-1-349  [code=3.30.450.20, no name defined]                                                               CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....---------------------------------------------------hhh.eeeeee.....eeee..hhhhhhh.hhhhhh..hhhhhh...hhhhhhhhhhhhhhhheee...eeee.....eeeeeeeeeeee......eeeeeeeeee...... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----------------------------------------------------------------PAS  PDB: A:249-300 UniProt: 249-300                ------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.9Exon 1.10b  PDB: A:239-260 UniProt: 192-260 [INCOMPLETE]             -----------------------------------Exon 1.12b  PDB: A:296-345 UniProt: 296-345       ---- Transcript 1 (1)
           Transcript 1 (2) ----------------------------------------------------------------------------Exon 1.11  PDB: A:260-296            ------------------------------------------------1.13  Transcript 1 (2)
                 3h82 A  -1 EFKG---------------------------------------------------LDSKTFLSEHSMDMKFTYCDDRITELIGYHPEELLGRSAYEFYHALDSENMTKSHQNLCTKGQVVSGQYRMLAKHGGYVWLETQGTVIYNPRNLQPQCIMCVNYVLSEIEK 349
                               |     -         -         -         -         -     | 243       253       263       273       283       293       303       313       323       333       343      
                               2                                                 239                                                                                                              

Chain B from PDB  Type:PROTEIN  Length:113
 aligned with ARNT_HUMAN | P27540 from UniProtKB/Swiss-Prot  Length:789

    Alignment length:113
                                   364       374       384       394       404       414       424       434       444       454       464   
           ARNT_HUMAN   355 SNVCQPTEFISRHNIEGIFTFVDHRCVATVGYQPQELLGKNIVEFCHPEDQQLLRDSFQQVVKLKGQVLSVMFRFRSKNQEWLWMRTSSFTFQNPYSDEIEYIICTNTNVKNS 467
               SCOP domains d3h82b_ B: automated matches                                                                                      SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .......eeeeee.....eeee..hhhhhhh.hhhhhh..hhhhhhhhhhhhhhhhhhhhhhhh....eeeeeeee.....eeeeeeeeeee.........eeeeeeee.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------Q----K-------------------------------- SAPs(SNPs)
                    PROSITE -------------PAS  PDB: B:368-419 UniProt: 368-419                ------------------------------------------------ PROSITE
           Transcript 2 (1) Exon 2.15b  PDB: B:355-389         Exon 2.16  PDB: B:390-414Exon 2.17  PDB: B:415-465 UniProt: 415-465         -- Transcript 2 (1)
           Transcript 2 (2) --------------------------------------------------------------------------------------------------------------2.1 Transcript 2 (2)
                 3h82 B 355 LNVCQPTRFISRHNIEGIFTFVDHRCVATVGYQPQELLGKNIVEFCHPEDQQLLRDSFQQVVKLKGQVLSVMFRFRSKNQEWLWMRTSSFTFQNPYSDEIEYIICTNTNVKNS 467
                                   364       374       384       394       404       414       424       434       444       454       464   

   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (2, 2)

Asymmetric/Biological Unit

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3H82)

(-) Gene Ontology  (60, 79)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (EPAS1_HUMAN | Q99814)
molecular function
    GO:0003677    DNA binding    Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
    GO:0000981    RNA polymerase II transcription factor activity, sequence-specific DNA binding    Interacting selectively and non-covalently with a specific DNA sequence in order to modulate transcription by RNA polymerase II. The transcription factor may or may not also interact selectively with a protein or macromolecular complex.
    GO:0035035    histone acetyltransferase binding    Interacting selectively and non-covalently with the enzyme histone acetyltransferase.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0046983    protein dimerization activity    The formation of a protein dimer, a macromolecular structure consists of two noncovalently associated identical or nonidentical subunits.
    GO:0046982    protein heterodimerization activity    Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.
    GO:0043565    sequence-specific DNA binding    Interacting selectively and non-covalently with DNA of a specific nucleotide composition, e.g. GC-rich DNA binding, or with a specific sequence motif or type of DNA e.g. promotor binding or rDNA binding.
    GO:0003700    transcription factor activity, sequence-specific DNA binding    Interacting selectively and non-covalently with a specific DNA sequence in order to modulate transcription. The transcription factor may or may not also interact selectively with a protein or macromolecular complex.
    GO:0008134    transcription factor binding    Interacting selectively and non-covalently with a transcription factor, any protein required to initiate or regulate transcription.
    GO:0001077    transcriptional activator activity, RNA polymerase II core promoter proximal region sequence-specific binding    Interacting selectively and non-covalently with a sequence of DNA that is in cis with and relatively close to a core promoter for RNA polymerase II (RNAP II) in order to activate or increase the frequency, rate or extent of transcription from the RNAP II promoter.
biological process
    GO:0001525    angiogenesis    Blood vessel formation when new vessels emerge from the proliferation of pre-existing blood vessels.
    GO:0001974    blood vessel remodeling    The reorganization or renovation of existing blood vessels.
    GO:0030154    cell differentiation    The process in which relatively unspecialized cells, e.g. embryonic or regenerative cells, acquire specialized structural and/or functional features that characterize the cells, tissues, or organs of the mature organism or some other relatively stable phase of the organism's life history. Differentiation includes the processes involved in commitment of a cell to a specific fate and its subsequent development to the mature state.
    GO:0048469    cell maturation    A developmental process, independent of morphogenetic (shape) change, that is required for a cell to attain its fully functional state.
    GO:0071456    cellular response to hypoxia    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating lowered oxygen tension. Hypoxia, defined as a decline in O2 levels below normoxic levels of 20.8 - 20.95%, results in metabolic adaptation at both the cellular and organismal level.
    GO:0001892    embryonic placenta development    The embryonically driven process whose specific outcome is the progression of the placenta over time, from its formation to the mature structure. The placenta is an organ of metabolic interchange between fetus and mother, partly of embryonic origin and partly of maternal origin.
    GO:0030218    erythrocyte differentiation    The process in which a myeloid precursor cell acquires specializes features of an erythrocyte.
    GO:0030097    hemopoiesis    The process whose specific outcome is the progression of the myeloid and lymphoid derived organ/tissue systems of the blood and other parts of the body over time, from formation to the mature structure. The site of hemopoiesis is variable during development, but occurs primarily in bone marrow or kidney in many adult vertebrates.
    GO:0055072    iron ion homeostasis    Any process involved in the maintenance of an internal steady state of iron ions within an organism or cell.
    GO:0030324    lung development    The process whose specific outcome is the progression of the lung over time, from its formation to the mature structure. In all air-breathing vertebrates the lungs are developed from the ventral wall of the oesophagus as a pouch which divides into two sacs. In amphibians and many reptiles the lungs retain very nearly this primitive sac-like character, but in the higher forms the connection with the esophagus becomes elongated into the windpipe and the inner walls of the sacs become more and more divided, until, in the mammals, the air spaces become minutely divided into tubes ending in small air cells, in the walls of which the blood circulates in a fine network of capillaries. In mammals the lungs are more or less divided into lobes, and each lung occupies a separate cavity in the thorax.
    GO:0007005    mitochondrion organization    A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a mitochondrion; includes mitochondrial morphogenesis and distribution, and replication of the mitochondrial genome as well as synthesis of new mitochondrial components.
    GO:0007275    multicellular organism development    The biological process whose specific outcome is the progression of a multicellular organism over time from an initial condition (e.g. a zygote or a young adult) to a later condition (e.g. a multicellular animal or an aged adult).
    GO:0048625    myoblast fate commitment    The process in which the developmental fate of a cell becomes restricted such that it will develop into a myoblast. A myoblast is a mononucleate cell type that, by fusion with other myoblasts, gives rise to the myotubes that eventually develop into skeletal muscle fibers.
    GO:0042415    norepinephrine metabolic process    The chemical reactions and pathways involving norepinephrine, a hormone secreted by the adrenal medulla, and a neurotransmitter in the sympathetic peripheral nervous system and in some tracts in the central nervous system. It is also the demethylated biosynthetic precursor of epinephrine.
    GO:0045944    positive regulation of transcription from RNA polymerase II promoter    Any process that activates or increases the frequency, rate or extent of transcription from an RNA polymerase II promoter.
    GO:0002027    regulation of heart rate    Any process that modulates the frequency or rate of heart contraction.
    GO:0061418    regulation of transcription from RNA polymerase II promoter in response to hypoxia    Any process that modulates the frequency, rate or extent of transcription from an RNA polymerase II promoter as a result of a hypoxia stimulus.
    GO:0043619    regulation of transcription from RNA polymerase II promoter in response to oxidative stress    Modulation of the frequency, rate or extent of transcription from an RNA polymerase II promoter as a result of a stimulus indicating the organism is under oxidative stress, a state often resulting from exposure to high levels of reactive oxygen species, e.g. superoxide anions, hydrogen peroxide (H2O2), and hydroxyl radicals.
    GO:0006355    regulation of transcription, DNA-templated    Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
    GO:0001666    response to hypoxia    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating lowered oxygen tension. Hypoxia, defined as a decline in O2 levels below normoxic levels of 20.8 - 20.95%, results in metabolic adaptation at both the cellular and organismal level.
    GO:0006979    response to oxidative stress    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of oxidative stress, a state often resulting from exposure to high levels of reactive oxygen species, e.g. superoxide anions, hydrogen peroxide (H2O2), and hydroxyl radicals.
    GO:0007165    signal transduction    The cellular process in which a signal is conveyed to trigger a change in the activity or state of a cell. Signal transduction begins with reception of a signal (e.g. a ligand binding to a receptor or receptor activation by a stimulus such as light), or for signal transduction in the absence of ligand, signal-withdrawal or the activity of a constitutively active receptor. Signal transduction ends with regulation of a downstream cellular process, e.g. regulation of transcription or regulation of a metabolic process. Signal transduction covers signaling from receptors located on the surface of the cell and signaling via molecules located within the cell. For signaling between cells, signal transduction is restricted to events at and within the receiving cell.
    GO:0035019    somatic stem cell population maintenance    Any process by which an organism retains a population of somatic stem cells, undifferentiated cells in the embryo or adult which can undergo unlimited division and give rise to cell types of the body other than those of the germ-line.
    GO:0043129    surfactant homeostasis    Any process involved in the maintenance of a steady-state level of the surface-active lipoprotein mixture which coats the alveoli.
    GO:0006366    transcription from RNA polymerase II promoter    The synthesis of RNA from a DNA template by RNA polymerase II, originating at an RNA polymerase II promoter. Includes transcription of messenger RNA (mRNA) and certain small nuclear RNAs (snRNAs).
    GO:0006351    transcription, DNA-templated    The cellular synthesis of RNA on a template of DNA.
    GO:0007601    visual perception    The series of events required for an organism to receive a visual stimulus, convert it to a molecular signal, and recognize and characterize the signal. Visual stimuli are detected in the form of photons and are processed to form an image.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
    GO:0016607    nuclear speck    A discrete extra-nucleolar subnuclear domain, 20-50 in number, in which splicing factors are seen to be localized by immunofluorescence microscopy.
    GO:0005654    nucleoplasm    That part of the nuclear content other than the chromosomes or the nucleolus.
    GO:0005634    nucleus    A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
    GO:0005667    transcription factor complex    A protein complex that is capable of associating with DNA by direct binding, or via other DNA-binding proteins or complexes, and regulating transcription.

Chain B   (ARNT_HUMAN | P27540)
molecular function
    GO:0003677    DNA binding    Any molecular function by which a gene product interacts selectively and non-covalently with DNA (deoxyribonucleic acid).
    GO:0004874    aryl hydrocarbon receptor activity    Combining with an aryl hydrocarbon and transmitting the signal to initiate a change in cell activity. The aryl hydrocarbon receptor is a ligand-activated transcription factor which translocates to the nucleus to activate transcription upon ligand-binding.
    GO:0017162    aryl hydrocarbon receptor binding    Interacting selectively and non-covalently with an aryl hydrocarbon receptor.
    GO:0035326    enhancer binding    Interacting selectively and non-covalently with an enhancer, a transcription regulatory region that is somewhat distal from the core promoter and which enhances transcription from that promoter.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0046983    protein dimerization activity    The formation of a protein dimer, a macromolecular structure consists of two noncovalently associated identical or nonidentical subunits.
    GO:0046982    protein heterodimerization activity    Interacting selectively and non-covalently with a nonidentical protein to form a heterodimer.
    GO:0043565    sequence-specific DNA binding    Interacting selectively and non-covalently with DNA of a specific nucleotide composition, e.g. GC-rich DNA binding, or with a specific sequence motif or type of DNA e.g. promotor binding or rDNA binding.
    GO:0003713    transcription coactivator activity    Interacting selectively and non-covalently with a activating transcription factor and also with the basal transcription machinery in order to increase the frequency, rate or extent of transcription. Cofactors generally do not bind the template nucleic acid, but rather mediate protein-protein interactions between activating transcription factors and the basal transcription machinery.
    GO:0003705    transcription factor activity, RNA polymerase II distal enhancer sequence-specific binding    Interacting selectively and non-covalently with a sequence of DNA that is in a distal enhancer region for RNA polymerase II (RNAP II) in order to modulate transcription by RNAP II.
    GO:0003700    transcription factor activity, sequence-specific DNA binding    Interacting selectively and non-covalently with a specific DNA sequence in order to modulate transcription. The transcription factor may or may not also interact selectively with a protein or macromolecular complex.
    GO:0000989    transcription factor activity, transcription factor binding    Interacting selectively and non-covalently with a specific transcription factor, which may be a single protein or a complex, in order to modulate transcription. A protein binding transcription factor may or may not also interact with the template nucleic acid (either DNA or RNA) as well.
    GO:0008134    transcription factor binding    Interacting selectively and non-covalently with a transcription factor, any protein required to initiate or regulate transcription.
biological process
    GO:0030154    cell differentiation    The process in which relatively unspecialized cells, e.g. embryonic or regenerative cells, acquire specialized structural and/or functional features that characterize the cells, tissues, or organs of the mature organism or some other relatively stable phase of the organism's life history. Differentiation includes the processes involved in commitment of a cell to a specific fate and its subsequent development to the mature state.
    GO:0001892    embryonic placenta development    The embryonically driven process whose specific outcome is the progression of the placenta over time, from its formation to the mature structure. The placenta is an organ of metabolic interchange between fetus and mother, partly of embryonic origin and partly of maternal origin.
    GO:0030522    intracellular receptor signaling pathway    Any series of molecular signals initiated by a ligand binding to an receptor located within a cell.
    GO:0042789    mRNA transcription from RNA polymerase II promoter    The cellular synthesis of messenger RNA (mRNA) from a DNA template by RNA polymerase II, originating at an RNA polymerase II promoter.
    GO:0001938    positive regulation of endothelial cell proliferation    Any process that activates or increases the rate or extent of endothelial cell proliferation.
    GO:0045648    positive regulation of erythrocyte differentiation    Any process that activates or increases the frequency, rate or extent of erythrocyte differentiation.
    GO:0045821    positive regulation of glycolytic process    Any process that activates or increases the frequency, rate or extent of glycolysis.
    GO:0046886    positive regulation of hormone biosynthetic process    Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of hormones.
    GO:0033235    positive regulation of protein sumoylation    Any process that activates or increases the frequency, rate or extent of the addition of SUMO groups to a protein.
    GO:0045944    positive regulation of transcription from RNA polymerase II promoter    Any process that activates or increases the frequency, rate or extent of transcription from an RNA polymerase II promoter.
    GO:0045893    positive regulation of transcription, DNA-templated    Any process that activates or increases the frequency, rate or extent of cellular DNA-templated transcription.
    GO:0010575    positive regulation of vascular endothelial growth factor production    Any process that increases or activates the frequency, rate, or extent of production of vascular endothelial growth factor.
    GO:0030949    positive regulation of vascular endothelial growth factor receptor signaling pathway    Any process that activates or increases the frequency, rate or extent of vascular endothelial growth factor receptor signaling pathway activity.
    GO:0061418    regulation of transcription from RNA polymerase II promoter in response to hypoxia    Any process that modulates the frequency, rate or extent of transcription from an RNA polymerase II promoter as a result of a hypoxia stimulus.
    GO:0043619    regulation of transcription from RNA polymerase II promoter in response to oxidative stress    Modulation of the frequency, rate or extent of transcription from an RNA polymerase II promoter as a result of a stimulus indicating the organism is under oxidative stress, a state often resulting from exposure to high levels of reactive oxygen species, e.g. superoxide anions, hydrogen peroxide (H2O2), and hydroxyl radicals.
    GO:0006355    regulation of transcription, DNA-templated    Any process that modulates the frequency, rate or extent of cellular DNA-templated transcription.
    GO:0001666    response to hypoxia    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating lowered oxygen tension. Hypoxia, defined as a decline in O2 levels below normoxic levels of 20.8 - 20.95%, results in metabolic adaptation at both the cellular and organismal level.
    GO:0006351    transcription, DNA-templated    The cellular synthesis of RNA on a template of DNA.
cellular component
    GO:0090575    RNA polymerase II transcription factor complex    A transcription factor complex that acts at promoters of genes transcribed by RNA polymerase II.
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005654    nucleoplasm    That part of the nuclear content other than the chromosomes or the nucleolus.
    GO:0005634    nucleus    A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
    GO:0005667    transcription factor complex    A protein complex that is capable of associating with DNA by direct binding, or via other DNA-binding proteins or complexes, and regulating transcription.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        ARNT_HUMAN | P275401d7g 1x0o 2a24 2arn 2b02 2hv1 2k7s 3f1n 3f1o 3f1p 3h7w 4eq1 4ghi 4gs9 4h6j 4lpz 4pky 4xt2 5nj8 5tbm 5ufp 5v0l
        EPAS1_HUMAN | Q998141p97 2a24 3f1n 3f1o 3f1p 3h7w 4ghi 4gs9 4pky 4xt2 5kiz 5tbm 5ufp

(-) Related Entries Specified in the PDB File

1p97 NMR STRUCTURE OF THE HIF2 ALPHA C-TERMINAL PAS DOMAIN.
1x0o NMR STRUCTURE OF THE ARNT C-TERMINAL PAS DOMAIN.
2a24 NMR-GUIDED MODEL OF THE HETERODIMER OF THE WILD-TYPE HIF2 ALPHA AND ARNT C-TERMINAL PAS DOMAINS.
2b02 CRYSTAL STRUCTURE OF THE ARNT C-TERMINAL PAS DOMAIN.
3f1n CRYSTAL STRUCTURE OF A HIGH AFFINITY HETERODIMER OF HIF2 ALPHA AND ARNT C-TERMINAL PAS DOMAINS, WITH INTERNALLY BOUND ETHYLENE GLYCOL.
3f1o CRYSTAL STRUCTURE OF THE HIGH AFFINITY HETERODIMER OF HIF2 ALPHA AND ARNT C-TERMINAL PAS DOMAINS, WITH THE INTERNALLY- BOUND ARTIFICIAL LIGAND THS-044.
3f1p CRYSTAL STRUCTURE OF A HIGH AFFINITY HETERODIMER OF HIF2 ALPHA AND ARNT C-TERMINAL PAS DOMAINS.
3h7w HETERODIMER OF HIF2 ALPHA AND ARNT C-TERMINAL PAS DOMAINS WITH THE ARTIFICIAL LIGAND THS017