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(-) Description

Title :  INTERFERON ALPHA-2A, NMR, 24 STRUCTURES
 
Authors :  W. Klaus, B. Gsell, A. M. Labhardt, B. Wipf, H. Senn
Date :  22 Aug 97  (Deposition) - 03 Dec 97  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (24x)
Keywords :  Interferon, Cytokine (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  W. Klaus, B. Gsell, A. M. Labhardt, B. Wipf, H. Senn
The Three-Dimensional High Resolution Structure Of Human Interferon Alpha-2A Determined By Heteronuclear Nmr Spectroscopy In Solution.
J. Mol. Biol. V. 274 661 1997
PubMed-ID: 9417943  |  Reference-DOI: 10.1006/JMBI.1997.1396
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - INTERFERON ALPHA-2A
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606

 Structural Features

(-) Chains, Units

  
NMR Structure (24x)

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 1ITF)

(-) Sites  (0, 0)

(no "Site" information available for 1ITF)

(-) SS Bonds  (2, 2)

NMR Structure
No.Residues
1A:1 -A:98
2A:29 -A:138

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1ITF)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (3, 3)

NMR Structure (3, 3)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_004012K46RIFNA2_HUMANPolymorphism1061959AK23R
2UniProtVAR_013001H57RIFNA2_HUMANUnclassified  ---AH34R
3UniProtVAR_036329S177LIFNA2_HUMANUnclassified  ---AS154L

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

(-) PROSITE Motifs  (1, 1)

NMR Structure (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1INTERFERON_A_B_DPS00252 Interferon alpha, beta and delta family signature.IFNA2_HUMAN145-163  1A:122-140

(-) Exons   (1, 1)

NMR Structure (1, 1)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1ENST000003802061ENSE00001484102chr9:21385396-213842541143IFNA2_HUMAN1-2112111A:1-165165

(-) Sequences/Alignments

NMR Structure
   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:165
 aligned with IFNA2_HUMAN | P01563 from UniProtKB/Swiss-Prot  Length:188

    Alignment length:165
                                    33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183     
          IFNA2_HUMAN    24 CDLPQTHSLGSRRTLMLLAQMRKISLFSCLKDRHDFGFPQEEFGNQFQKAETIPVLHEMIQQIFNLFSTKDSSAAWDETLLDKFYTELYQQLNDLEACVIQGVGVTETPLMKEDSILAVRKYFQRITLYLKEKKYSPCAWEVVRAEIMRSFSLSTNLQESLRSKE 188
               SCOP domains d1itfa_ A: Interferon-alpha 2a                                                                                                                                        SCOP domains
               CATH domains 1itfA00 A:1-165  [code=1.20.1250.10, no name defined]                                                                                                                 CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .........hhhhhhhhhhhh..................hhhh.........hhhhhhhhhhhhhhhh.hhhhhh..hhhhhhhhhhhhhhhhhhhhhhh.........hhhhhhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhhhhhhhhh........ Sec.struct. author
                 SAPs(SNPs) ----------------------R----------R-----------------------------------------------------------------------------------------------------------------------L----------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------INTERFERON_A_B_D   ------------------------- PROSITE
               Transcript 1 Exon 1.1  PDB: A:1-165 UniProt: 1-211 [INCOMPLETE]                                                                                                                    Transcript 1
                 1itf A   1 CDLPQTHSLGSRRTLMLLAQMRKISLFSCLKDRHDFGFPQEEFGNQFQKAETIPVLHEMIQQIFNLFSTKDSSAAWDETLLDKFYTELYQQLNDLEACVIQGVGVTETPLMKEDSILAVRKYFQRITLYLKEKKYSPCAWEVVRAEIMRSFSLSTNLQESLRSKE 165
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160     

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  - → Gap (green background, '-', border residues have a numbering label)
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  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  (1, 1)

NMR Structure

(-) CATH Domains  (1, 1)

NMR Structure

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1ITF)

(-) Gene Ontology  (33, 33)

NMR Structure(hide GO term definitions)
Chain A   (IFNA2_HUMAN | P01563)
molecular function
    GO:0005125    cytokine activity    Functions to control the survival, growth, differentiation and effector function of tissues and cells.
    GO:0005126    cytokine receptor binding    Interacting selectively and non-covalently with a cytokine receptor.
    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:0005132    type I interferon receptor binding    Interacting selectively and non-covalently with an interferon-type I receptor, a heterodimeric complex composed of an alpha subunit (IFNAR1) and a beta subunit (IFNAR2).
biological process
    GO:0030183    B cell differentiation    The process in which a precursor cell type acquires the specialized features of a B cell. A B cell is a lymphocyte of B lineage with the phenotype CD19-positive and capable of B cell mediated immunity.
    GO:0042100    B cell proliferation    The expansion of a B cell population by cell division. Follows B cell activation.
    GO:0002286    T cell activation involved in immune response    The change in morphology and behavior of a mature or immature T cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific, leading to the initiation or perpetuation of an immune response.
    GO:0006915    apoptotic process    A programmed cell death process which begins when a cell receives an internal (e.g. DNA damage) or external signal (e.g. an extracellular death ligand), and proceeds through a series of biochemical events (signaling pathway phase) which trigger an execution phase. The execution phase is the last step of an apoptotic process, and is typically characterized by rounding-up of the cell, retraction of pseudopodes, reduction of cellular volume (pyknosis), chromatin condensation, nuclear fragmentation (karyorrhexis), plasma membrane blebbing and fragmentation of the cell into apoptotic bodies. When the execution phase is completed, the cell has died.
    GO:0007596    blood coagulation    The sequential process in which the multiple coagulation factors of the blood interact, ultimately resulting in the formation of an insoluble fibrin clot; it may be divided into three stages: stage 1, the formation of intrinsic and extrinsic prothrombin converting principle; stage 2, the formation of thrombin; stage 3, the formation of stable fibrin polymers.
    GO:0007166    cell surface receptor signaling pathway    A series of molecular signals initiated by activation of a receptor on the surface of a cell. The pathway begins with binding of an extracellular ligand to a cell surface receptor, or for receptors that signal in the absence of a ligand, by ligand-withdrawal or the activity of a constitutively active receptor. The pathway ends with regulation of a downstream cellular process, e.g. transcription.
    GO:0007267    cell-cell signaling    Any process that mediates the transfer of information from one cell to another. This process includes signal transduction in the receiving cell and, where applicable, release of a ligand and any processes that actively facilitate its transport and presentation to the receiving cell. Examples include signaling via soluble ligands, via cell adhesion molecules and via gap junctions.
    GO:0019221    cytokine-mediated signaling pathway    A series of molecular signals initiated by the binding of a cytokine to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription.
    GO:0006952    defense response    Reactions, triggered in response to the presence of a foreign body or the occurrence of an injury, which result in restriction of damage to the organism attacked or prevention/recovery from the infection caused by the attack.
    GO:0051607    defense response to virus    Reactions triggered in response to the presence of a virus that act to protect the cell or organism.
    GO:0006959    humoral immune response    An immune response mediated through a body fluid.
    GO:0006954    inflammatory response    The immediate defensive reaction (by vertebrate tissue) to infection or injury caused by chemical or physical agents. The process is characterized by local vasodilation, extravasation of plasma into intercellular spaces and accumulation of white blood cells and macrophages.
    GO:0045087    innate immune response    Innate immune responses are defense responses mediated by germline encoded components that directly recognize components of potential pathogens.
    GO:0002323    natural killer cell activation involved in immune response    The change in morphology and behavior of a natural killer cell resulting from exposure a cytokine, chemokine, cellular ligand, or soluble factor, leading to the initiation or perpetuation of an immune response.
    GO:0045581    negative regulation of T cell differentiation    Any process that stops, prevents, or reduces the frequency, rate or extent of T cell differentiation.
    GO:2000552    negative regulation of T-helper 2 cell cytokine production    Any process that stops, prevents or reduces the frequency, rate or extent of T-helper 2 cell cytokine production.
    GO:0010629    negative regulation of gene expression    Any process that decreases the frequency, rate or extent of gene expression. Gene expression is the process in which a gene's coding sequence is converted into a mature gene product or products (proteins or RNA). This includes the production of an RNA transcript as well as any processing to produce a mature RNA product or an mRNA or circRNA (for protein-coding genes) and the translation of that mRNA or circRNA into protein. Protein maturation is included when required to form an active form of a product from an inactive precursor form.
    GO:2000666    negative regulation of interleukin-13 secretion    Any process that stops, prevents or reduces the frequency, rate or extent of interleukin-13 secretion.
    GO:2000663    negative regulation of interleukin-5 secretion    Any process that stops, prevents or reduces the frequency, rate or extent of interleukin-5 secretion.
    GO:0045892    negative regulation of transcription, DNA-templated    Any process that stops, prevents, or reduces the frequency, rate or extent of cellular DNA-templated transcription.
    GO:0046597    negative regulation of viral entry into host cell    Any process that stops, prevents, or reduces the frequency, rate or extent of the entry of viral entry into a host cell.
    GO:0033141    positive regulation of peptidyl-serine phosphorylation of STAT protein    Any process that activates or increases the frequency, rate or extent of the phosphorylation of a serine residue of a STAT (Signal Transducer and Activator of Transcription) protein.
    GO:0042327    positive regulation of phosphorylation    Any process that activates or increases the frequency, rate or extent of addition of phosphate groups to a molecule.
    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:0060338    regulation of type I interferon-mediated signaling pathway    Any process that modulates the rate, frequency or extent of a type I interferon-mediated signaling pathway. A type I interferon-mediated signaling pathway is the series of molecular events generated as a consequence of a type I interferon binding to a cell surface receptor.
    GO:0043330    response to exogenous dsRNA    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 an exogenous double-stranded RNA stimulus.
    GO:0060337    type I interferon signaling pathway    A series of molecular signals initiated by the binding of a type I interferon to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription. Type I interferons include the interferon-alpha, beta, delta, episilon, zeta, kappa, tau, and omega gene families.
cellular component
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
    GO:0005615    extracellular space    That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.

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 Related Entries

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

UniProtKB/Swiss-Prot
        IFNA2_HUMAN | P015631rh2 2hie 2hym 2kz1 2lag 2lms 3s9d 3se3 4ypg 4z5r

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