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(-) Description

Title :  CRYSTAL STRUCTURE OF THE POSSUM MILK WHEY LIPOCALIN TRICHOSURIN AT PH 4.6
 
Authors :  R. P. Watson
Date :  07 Sep 07  (Deposition) - 20 Nov 07  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.90
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Lipocalin, Beta Barrel, Milk Whey Lipocalin, Dimer, Glycoprotein, Milk Protein, Secreted, Transport, Transport Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  R. P. Watson, J. Demmer, E. N. Baker, V. L. Arcus
Three-Dimensional Structure And Ligand Binding Properties Of Trichosurin, A Metatherian Lipocalin From The Milk Whey Of The Common Brushtail Possum Trichosurus Vulpecula
Biochem. J. V. 408 29 2007
PubMed-ID: 17685895  |  Reference-DOI: 10.1042/BJ20070567
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - TRICHOSURIN
    Chains: A, B
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21(DE3)
    Expression System Plasmid: PET23
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Mutation: YES
    Organism Common: SILVER-GRAY BRUSHTAIL POSSUM
    Organism Scientific: TRICHOSURUS VULPECULA
    Organism Taxid: 9337

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 11)

Asymmetric/Biological Unit (3, 11)
No.NameCountTypeFull Name
1CL5Ligand/IonCHLORIDE ION
2IPA4Ligand/IonISOPROPYL ALCOHOL
3ZN2Ligand/IonZINC ION

(-) Sites  (0, 0)

(no "Site" information available for 2R74)

(-) SS Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1A:73 -A:166
2B:73 -B:166

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2R74)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2R74)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2R74)

(-) Exons   (0, 0)

(no "Exon" information available for 2R74)

(-) 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:142
 aligned with TRIC_TRIVU | Q29147 from UniProtKB/Swiss-Prot  Length:180

    Alignment length:143
                                    47        57        67        77        87        97       107       117       127       137       147       157       167       177   
           TRIC_TRIVU    38 LSRHWHTVVLASSDRSLIEEEGPFRNFIQNITVESGNLNGFFLTRKNGQCIPLYLTAFKTEEARQFKLNYYGTNDVYYGSSKPNEYAKFIFYNYHDGKVNVVANLFGRTPNLSNEIKKRFEEDFMNRGFRRENILDISEVDHC 180
               SCOP domains d 2r74a_ A: automated matches                                                                                                                   SCOP domains
               CATH domains 2 r74A00 A:24-166  [code=2.40.128.20, no name defined]                                                                                          CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .-...eeeeeee.hhhhhh.......eeeeeeee..eeeeeeeee....eeeeeeeeee.....eeeee...eeeeeee......eeeeeeeeee..eeeeeeeeee.....hhhhhhhhhhhhhh...hhh.eee.hhh... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2r74 A  24 L-RHWHTVVLASSDRSLIEEEGPFRNFIQNITVESGNLNGFFLTRKNGQCIPLYLTAFKTEEARQFKLNYYGTNDVYYESSKPNEYAKFIFYNYHDGKVNVVANLFGRTPNLSNEIKKRFEEDFMNRGFRRENILDISEVDHC 166
                            | |     33        43        53        63        73        83        93       103       113       123       133       143       153       163   
                            | |                                                                                                                                            
                           24 |                                                                                                                                            
                             26                                                                                                                                            


Chain B from PDB  Type:PROTEIN  Length:142
 aligned with TRIC_TRIVU | Q29147 from UniProtKB/Swiss-Prot  Length:180

    Alignment length:143
                                    47        57        67        77        87        97       107       117       127       137       147       157       167       177   
           TRIC_TRIVU    38 LSRHWHTVVLASSDRSLIEEEGPFRNFIQNITVESGNLNGFFLTRKNGQCIPLYLTAFKTEEARQFKLNYYGTNDVYYGSSKPNEYAKFIFYNYHDGKVNVVANLFGRTPNLSNEIKKRFEEDFMNRGFRRENILDISEVDHC 180
               SCOP domains d 2r74b_ B: automated matches                                                                                                                   SCOP domains
               CATH domains 2 r74B00 B:24-166  [code=2.40.128.20, no name defined]                                                                                          CATH domains
           Pfam domains (1) --Lipocalin-2r74B01 B:26-164                                                                                                                 -- Pfam domains (1)
           Pfam domains (2) --Lipocalin-2r74B02 B:26-164                                                                                                                 -- Pfam domains (2)
         Sec.struct. author .-...eeeeeee.hhhhh........eeeeeeee..eeeeeeeeee..eeeeeeeeeee.....eeeee...eeeeeee......eeeeeeeeee..eeeeeeeeee.....hhhhhhhhhhhhhh...hhh.eee....... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2r74 B  24 L-RHWHTVVLASSDRSLIEEEGPFRNFIQNITVESGNLNGFFLTRKNGQCIPLYLTAFKTEEARQFKLNYYGTNDVYYESSKPNEYAKFIFYNYHDGKVNVVANLFGRTPNLSNEIKKRFEEDFMNRGFRRENILDISEVDHC 166
                            | |     33        43        53        63        73        83        93       103       113       123       133       143       153       163   
                           24 |                                                                                                                                            
                             26
   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, 2)

Asymmetric/Biological Unit
(-)
Class: All beta proteins (24004)

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (1, 2)

Asymmetric/Biological Unit
(-)
Clan: Calycin (163)

(-) Gene Ontology  (4, 4)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (TRIC_TRIVU | Q29147)
molecular function
    GO:0005550    pheromone binding    Interacting selectively and non-covalently with a pheromone, a substance, or characteristic mixture of substances, that is secreted and released by an organism and detected by a second organism of the same or a closely related species, in which it causes a specific reaction, such as a definite behavioral reaction or a developmental process.
    GO:0005215    transporter activity    Enables the directed movement of substances (such as macromolecules, small molecules, ions) into, out of or within a cell, or between cells.
biological process
    GO:0006810    transport    The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
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.

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  2r74
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  TRIC_TRIVU | Q29147
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 Related Entries

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

UniProtKB/Swiss-Prot
        TRIC_TRIVU | Q29147: 2r73 2ra6

(-) Related Entries Specified in the PDB File

2r73 CRYSTAL STRUCTURE OF THE POSSUM MILK WHEY LIPOCALIN TRICHOSURIN AT PH 8.2
2ra6 CRYSTAL STRUCTURE OF THE POSSUM MILK WHEY LIPOCALIN TRICHOSURIN AT PH 4.6 BOUND 4-ETHYLPHENOL