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(-) Description

Title :  REDUCED SWEETNESS OF A MONELLIN (MNEI) MUTANT RESULTS FROM INCREASED PROTEIN FLEXIBILITY AND DISRUPTION OF A DISTANT POLY-(L-PROLINE) II HELIX
 
Authors :  J. R. Hobbs, G. C. Conn, S. D. Munger, C. M. Templeton
Date :  13 Dec 10  (Deposition) - 06 Apr 11  (Release) - 22 Jun 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym./Biol. Unit :  A
Keywords :  Poly-(L-Proline) Ii Helix, Sweet Protein, Plant Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  C. M. Templeton, S. Ostovar Pour, J. R. Hobbs, E. W. Blanch, S. D. Munger, G. L. Conn
Reduced Sweetness Of A Monellin (Mnei) Mutant Results From Increased Protein Flexibility And Disruption Of A Distant Poly-(L-Proline) Ii Helix.
Chem Senses V. 36 425 2011
PubMed-ID: 21343241  |  Reference-DOI: 10.1093/CHEMSE/BJR007

(-) Compounds

Molecule 1 - MONELLIN CHAIN B/MONELLIN CHAIN A CHIMERIC PROTEIN
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET22B
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Mutation: YES
    Organism Common: SERENDIPITY BERRY
    Organism Scientific: DIOSCOREOPHYLLUM CUMMINSII
    Organism Taxid: 3457
    Synonym: MONELLIN CHAIN II, MONELLIN CHAIN I

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name
1FMT1Ligand/IonFORMIC ACID

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWARELYS A:17 , ASP A:21 , PHE A:34 , HOH A:108BINDING SITE FOR RESIDUE FMT A 1131

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1Arg A:39 -Pro A:40
2Gly A:91 -Pro A:92

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3PYJ)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3PYJ)

(-) Exons   (0, 0)

(no "Exon" information available for 3PYJ)

(-) 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:96
 aligned with MONA_DIOCU | P02881 from UniProtKB/Swiss-Prot  Length:45

    Alignment length:96
                                                                               1                                            
                                     -         -         -         -         - |       9        19        29        39      
            MONA_DIOCU    - ---------------------------------------------------FREIKGYEYQLYVYASDKLFRADISEDYKTRGRKLLRFNGPVPPP 45
               SCOP domains d3pyja_ A: Monellin, B & A chains together                                                       SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains Monellin-3pyjA02 A:1-40                 ------------Monellin-3pyjA01 A:53-95                   - Pfam domains
         Sec.struct. author .eeeee..hhhhhhhhhhhhhhhhhhh......eeeeeeeeeeeeeeee..eeeeeeeeeeeeeee..eeeeeeeeee.....eeeeeee...... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------ Transcript
                  3pyj A  1 GEWEIIDIGPFTQNLAKFAVDEENKIGQYGRLTFNKVIRPCMKKTIYENEGFREIKGYEYQLYVYASDKLFRADISEDYKTRGRKLLRFNGPVPPP 96
                                    10        20        30        40        50        60        70        80        90      


Chain A from PDB  Type:PROTEIN  Length:96
 aligned with MONB_DIOCU | P02882 from UniProtKB/Swiss-Prot  Length:50

    Alignment length:96
                                                                            50                                              
                                    10        20        30        40        50         -         -         -         -      
            MONB_DIOCU    1 GEWEIIDIGPFTQNLGKFAVDEENKIGQYGRLTFNKVIRPCMKKTIYEEN----------------------------------------------  -
               SCOP domains d3pyja_ A: Monellin, B & A chains together                                                       SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains Monellin-3pyjA02 A:1-40                 ------------Monellin-3pyjA01 A:53-95                   - Pfam domains
         Sec.struct. author .eeeee..hhhhhhhhhhhhhhhhhhh......eeeeeeeeeeeeeeee..eeeeeeeeeeeeeee..eeeeeeeeee.....eeeeeee...... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------ Transcript
                  3pyj A  1 GEWEIIDIGPFTQNLAKFAVDEENKIGQYGRLTFNKVIRPCMKKTIYENEGFREIKGYEYQLYVYASDKLFRADISEDYKTRGRKLLRFNGPVPPP 96
                                    10        20        30        40        50        60        70        80        90
   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, 1)

Asymmetric/Biological Unit
(-)
Class: Alpha and beta proteins (a+b) (23004)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3PYJ)

(-) Pfam Domains  (1, 2)

Asymmetric/Biological Unit
(-)
Clan: no clan defined [family: Monellin] (7)

(-) Gene Ontology  (0, 0)

Asymmetric/Biological Unit(hide GO term definitions)
    (no "Gene Ontology" information available for 3PYJ)

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 Related Entries

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

UniProtKB/Swiss-Prot
        MONA_DIOCU | P02881: 1fa3 1fuw 1iv7 1iv9 1krl 1m9g 1mnl 2gpk 2o9u 3mon 3pxm 3q2p 4mon 5lc6 5lc7
        MONB_DIOCU | P02882: 1fa3 1fuw 1iv7 1iv9 1krl 1m9g 1mnl 1mol 2o9u 3mon 3pxm 3q2p 4mon 5lc6 5lc7

(-) Related Entries Specified in the PDB File

2o9u MONELLIN (MNEI) AT 1.15 RESOLUTION
3pxm V37A MNEI- REDUCED SWEETNESS OF A MONELLIN (MNEI) MUTANT RESULTS FROM INCREASED PROTEIN FLEXIBILITY AND DISRUPTION OF A DISTANT POLY-(L-PROLINE) II HELIX