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(-) Description

Title :  THE THREE-DIMENSIONAL STRUCTURE OF BOVINE PLATELET FACTOR 4 AT 3.0 ANGSTROMS RESOLUTION
 
Authors :  R. St Charles, B. F. P. Edwards
Date :  20 Oct 93  (Deposition) - 31 Jan 94  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym./Biol. Unit :  A,B,C,D
Keywords :  Platelet Factor (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  R. St Charles, D. A. Walz, B. F. Edwards
The Three-Dimensional Structure Of Bovine Platelet Factor 4 At 3. 0-A Resolution.
J. Biol. Chem. V. 264 2092 1989
PubMed-ID: 2914894
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PLATELET FACTOR 4
    ChainsA, B, C, D
    EngineeredYES
    Organism CommonCATTLE
    Organism ScientificBOS TAURUS
    Organism Taxid9913

 Structural Features

(-) Chains, Units

  1234
Asymmetric/Biological Unit ABCD

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name
1TCN1Ligand/IonTETRACYANONICKELATE ION

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLN B:24 , PRO B:36 , LYS B:77 , ARG B:81 , LYS B:84 , CYS D:25 , LEU D:28 , HOH D:423BINDING SITE FOR RESIDUE TCN D 1

(-) SS Bonds  (8, 8)

Asymmetric/Biological Unit
No.Residues
1A:25 -A:51
2A:27 -A:67
3B:25 -B:51
4B:27 -B:67
5C:25 -C:51
6C:27 -C:67
7D:25 -D:51
8D:27 -D:67

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1PLF)

(-) PROSITE Motifs  (1, 4)

Asymmetric/Biological Unit (1, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1SMALL_CYTOKINES_CXCPS00471 Small cytokines (intercrine/chemokine) C-x-C subfamily signature.PLF4_BOVIN25-69
 
 
 
  4A:25-69
B:25-69
C:25-69
D:25-69

(-) Exons   (0, 0)

(no "Exon" information available for 1PLF)

(-) 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:63
 aligned with PLF4_BOVIN | P02777 from UniProtKB/Swiss-Prot  Length:88

    Alignment length:63
                                    32        42        52        62        72        82   
            PLF4_BOVIN   23 LQCVCLKTTSGINPRHISSLEVIGAGTHCPSPQLLATKKTGRKICLDQQRPLYKKILKKLLDG 85
               SCOP domains d1plfa_ A: Platelet factor 4, PF4                               SCOP domains
               CATH domains 1plfA00 A:23-85  [code=2.40.50.40, no name defined]             CATH domains
               Pfam domains --------------------------------------------------------------- Pfam domains
         Sec.struct. author ............hhh.eeeeeee.........eeeeee....eee.....hhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --SMALL_CYTOKINES_CXC  PDB: A:25-69            ---------------- PROSITE
                 Transcript --------------------------------------------------------------- Transcript
                  1plf A 23 LQCVCLKTTSGINPRHISSLEVIGAGLHCPSPQLIATLKTGRKICLDQQNPLYKKIIKRLLKS 85
                                    32        42        52        62        72        82   

Chain B from PDB  Type:PROTEIN  Length:65
 aligned with PLF4_BOVIN | P02777 from UniProtKB/Swiss-Prot  Length:88

    Alignment length:65
                                    30        40        50        60        70        80     
            PLF4_BOVIN   21 EDLQCVCLKTTSGINPRHISSLEVIGAGTHCPSPQLLATKKTGRKICLDQQRPLYKKILKKLLDG 85
               SCOP domains d1plfb_ B: Platelet factor 4, PF4                                 SCOP domains
               CATH domains 1plfB00 B:21-85  [code=2.40.50.40, no name defined]               CATH domains
               Pfam domains ----------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............hhh.eeeeeee.........eeeeee....eee.....hhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----SMALL_CYTOKINES_CXC  PDB: B:25-69            ---------------- PROSITE
                 Transcript ----------------------------------------------------------------- Transcript
                  1plf B 21 EDLQCVCLKTTSGINPRHISSLEVIGAGLHCPSPQLIATLKTGRKICLDQQNPLYKKIIKRLLKS 85
                                    30        40        50        60        70        80     

Chain C from PDB  Type:PROTEIN  Length:63
 aligned with PLF4_BOVIN | P02777 from UniProtKB/Swiss-Prot  Length:88

    Alignment length:63
                                    32        42        52        62        72        82   
            PLF4_BOVIN   23 LQCVCLKTTSGINPRHISSLEVIGAGTHCPSPQLLATKKTGRKICLDQQRPLYKKILKKLLDG 85
               SCOP domains d1plfc_ C: Platelet factor 4, PF4                               SCOP domains
               CATH domains 1plfC00 C:23-85  [code=2.40.50.40, no name defined]             CATH domains
               Pfam domains --------------------------------------------------------------- Pfam domains
         Sec.struct. author ............hhh.eeeeeee.........eeeeee....eeee....hhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --SMALL_CYTOKINES_CXC  PDB: C:25-69            ---------------- PROSITE
                 Transcript --------------------------------------------------------------- Transcript
                  1plf C 23 LQCVCLKTTSGINPRHISSLEVIGAGLHCPSPQLIATLKTGRKICLDQQNPLYKKIIKRLLKS 85
                                    32        42        52        62        72        82   

Chain D from PDB  Type:PROTEIN  Length:65
 aligned with PLF4_BOVIN | P02777 from UniProtKB/Swiss-Prot  Length:88

    Alignment length:65
                                    30        40        50        60        70        80     
            PLF4_BOVIN   21 EDLQCVCLKTTSGINPRHISSLEVIGAGTHCPSPQLLATKKTGRKICLDQQRPLYKKILKKLLDG 85
               SCOP domains d1plfd_ D: Platelet factor 4, PF4                                 SCOP domains
               CATH domains 1plfD00 D:21-85  [code=2.40.50.40, no name defined]               CATH domains
           Pfam domains (1) IL8-1plfD01 D:21-82                                           --- Pfam domains (1)
           Pfam domains (2) IL8-1plfD02 D:21-82                                           --- Pfam domains (2)
           Pfam domains (3) IL8-1plfD03 D:21-82                                           --- Pfam domains (3)
           Pfam domains (4) IL8-1plfD04 D:21-82                                           --- Pfam domains (4)
         Sec.struct. author ..................eeeeeee.........eeeeee....eee.....hhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----SMALL_CYTOKINES_CXC  PDB: D:25-69            ---------------- PROSITE
                 Transcript ----------------------------------------------------------------- Transcript
                  1plf D 21 EDLQCVCLKTTSGINPRHISSLEVIGAGLHCPSPQLIATLKTGRKICLDQQNPLYKKIIKRLLKS 85
                                    30        40        50        60        70        80     

   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  (1, 4)

Asymmetric/Biological Unit

(-) CATH Domains  (1, 4)

Asymmetric/Biological Unit
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (1, 4)

Asymmetric/Biological Unit
(-)
Family: IL8 (55)
1aIL8-1plfD01D:21-82
1bIL8-1plfD02D:21-82
1cIL8-1plfD03D:21-82
1dIL8-1plfD04D:21-82

(-) Gene Ontology  (23, 23)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B,C,D   (PLF4_BOVIN | P02777)
molecular function
    GO:0045236    CXCR chemokine receptor binding    Interacting selectively and non-covalently with a chemokine receptor in the CXCR family.
    GO:0048248    CXCR3 chemokine receptor binding    Interacting selectively and non-covalently with a the CXCR3 chemokine receptor.
    GO:0008009    chemokine activity    The function of a family of small chemotactic cytokines; their name is derived from their ability to induce directed chemotaxis in nearby responsive cells. All chemokines possess a number of conserved cysteine residues involved in intramolecular disulfide bond formation. Some chemokines are considered pro-inflammatory and can be induced during an immune response to recruit cells of the immune system to a site of infection, while others are considered homeostatic and are involved in controlling the migration of cells during normal processes of tissue maintenance or development. Chemokines are found in all vertebrates, some viruses and some bacteria.
    GO:0005125    cytokine activity    Functions to control the survival, growth, differentiation and effector function of tissues and cells.
    GO:0008201    heparin binding    Interacting selectively and non-covalently with heparin, any member of a group of glycosaminoglycans found mainly as an intracellular component of mast cells and which consist predominantly of alternating alpha-(1->4)-linked D-galactose and N-acetyl-D-glucosamine-6-sulfate residues.
biological process
    GO:0007186    G-protein coupled receptor signaling pathway    A series of molecular signals that proceeds with an activated receptor promoting the exchange of GDP for GTP on the alpha-subunit of an associated heterotrimeric G-protein complex. The GTP-bound activated alpha-G-protein then dissociates from the beta- and gamma-subunits to further transmit the signal within the cell. The pathway begins with receptor-ligand interaction, or for basal GPCR signaling the pathway begins with the receptor activating its G protein in the absence of an agonist, and ends with regulation of a downstream cellular process, e.g. transcription. The pathway can start from the plasma membrane, Golgi or nuclear membrane (PMID:24568158 and PMID:16902576).
    GO:0070098    chemokine-mediated signaling pathway    A series of molecular signals initiated by the binding of a chemokine to a receptor on the surface of a cell, and ending with regulation of a downstream cellular process, e.g. transcription.
    GO:0006935    chemotaxis    The directed movement of a motile cell or organism, or the directed growth of a cell guided by a specific chemical concentration gradient. Movement may be towards a higher concentration (positive chemotaxis) or towards a lower concentration (negative chemotaxis).
    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:0006955    immune response    Any immune system process that functions in the calibrated response of an organism to a potential internal or invasive threat.
    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:0030595    leukocyte chemotaxis    The movement of a leukocyte in response to an external stimulus.
    GO:0016525    negative regulation of angiogenesis    Any process that stops, prevents, or reduces the frequency, rate or extent of angiogenesis.
    GO:0045653    negative regulation of megakaryocyte differentiation    Any process that stops, prevents, or reduces the frequency, rate or extent of megakaryocyte differentiation.
    GO:0030168    platelet activation    A series of progressive, overlapping events triggered by exposure of the platelets to subendothelial tissue. These events include shape change, adhesiveness, aggregation, and release reactions. When carried through to completion, these events lead to the formation of a stable hemostatic plug.
    GO:0030816    positive regulation of cAMP metabolic process    Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways involving the nucleotide cAMP (cyclic AMP, adenosine 3',5'-cyclophosphate).
    GO:0043950    positive regulation of cAMP-mediated signaling    Any process which activates, maintains or increases the frequency, rate or extent of cAMP-mediated signaling, a series of molecular signals in which a cell uses cyclic AMP to convert an extracellular signal into a response.
    GO:0002690    positive regulation of leukocyte chemotaxis    Any process that activates or increases the frequency, rate, or extent of leukocyte chemotaxis.
    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:0042127    regulation of cell proliferation    Any process that modulates the frequency, rate or extent of cell proliferation.
    GO:0032496    response to lipopolysaccharide    Any process that results in a change in state or activity of an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a lipopolysaccharide stimulus; lipopolysaccharide is a major component of the cell wall of gram-negative bacteria.
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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