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(-) Description

Title :  CRYSTAL STRUCTURE OF ASN14 TO GLY MUTANT OF WCI
 
Authors :  J. K. Dattagupta, U. Sen, J. Dasgupta, S. Khamrui
Date :  24 Oct 05  (Deposition) - 13 Jun 06  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.35
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Keywords :  Beta Trefoil, Spacer, Mutant, Hydrolase Inhibitor (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  J. Dasgupta, S. Khamrui, J. K. Dattagupta, U. Sen
Spacer Asn Determines The Fate Of Kunitz (Sti) Inhibitors, As Revealed By Structural And Biochemical Studies On Wci Mutants.
Biochemistry V. 45 6783 2006
PubMed-ID: 16734415  |  Reference-DOI: 10.1021/BI060374Q
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CHYMOTRYPSIN INHIBITOR 3
    ChainsA, B
    EngineeredYES
    Expression SystemESCHERICHIA COLI BL21(DE3)
    Expression System StrainBL21(DE3)
    Expression System Taxid469008
    Expression System Vector TypePET28A+
    MutationYES
    Organism CommonWINGED BEAN
    Organism ScientificPSOPHOCARPUS TETRAGONOLOBUS
    Organism Taxid3891
    SynonymWCI-3

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit AB
Biological Unit 1 (1x)A 
Biological Unit 2 (1x) B

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 2BEA)

(-) Sites  (0, 0)

(no "Site" information available for 2BEA)

(-) SS Bonds  (4, 4)

Asymmetric Unit
No.Residues
1A:44 -A:88
2A:138 -A:147
3B:44 -B:88
4B:138 -B:147

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 2)

Asymmetric Unit (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1SOYBEAN_KUNITZPS00283 Soybean trypsin inhibitor (Kunitz) protease inhibitors family signature.ICW3_PSOTE28-44
 
  2A:7-23
B:7-23
Biological Unit 1 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1SOYBEAN_KUNITZPS00283 Soybean trypsin inhibitor (Kunitz) protease inhibitors family signature.ICW3_PSOTE28-44
 
  1A:7-23
-
Biological Unit 2 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1SOYBEAN_KUNITZPS00283 Soybean trypsin inhibitor (Kunitz) protease inhibitors family signature.ICW3_PSOTE28-44
 
  1-
B:7-23

(-) Exons   (0, 0)

(no "Exon" information available for 2BEA)

(-) Sequences/Alignments

Asymmetric 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:170
 aligned with ICW3_PSOTE | P10822 from UniProtKB/Swiss-Prot  Length:207

    Alignment length:174
                                    36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196    
           ICW3_PSOTE    27 DLVDAEGNLVENGGTYYLLPHIWAHGGGIETAKTGNEPCPLTVVRSPNEVSKGEPIRISSQFLSLFIPRGSLVALGFANPPSCAASPWWTVVDSPQGPAVKLSQQKLPEKDILVFKFEKVSHSNIHVYKLLYCQHDEEDVKCDQYIGIHRDRNGNRRLVVTEENPLELVLLKAK 200
               SCOP domains d2beaa_ A: automated matches                                                                                                                                                   SCOP domains
               CATH domains 2beaA00 A:6-179  [code=2.80.10.50, no name defined]                                                                                                                            CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..............eeeee..hhhhh..eeee.........eeee..........eeee..............eeee............eee......eee......hhhhh..eeeeee......eeeeee...----....eeeeeee.....eeeee......eeeeee.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE -SOYBEAN_KUNITZ   ------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 2bea A   6 DLVDAEGNLVEGGGTYYLLPHIWAHGGGIETAKTGNEPCPLTVVRSPNEVSKGEPIRISSQFLSLFIPRGSLVALGFANPPSCAASPWWTVVDSPQGPAVKLSQQKLPEKDILVFKFEKVSHSNIHVYKLLYCQH----VKCDQYIGIHRDRNGNRRLVVTEENPLELVLLKAK 179
                                    15        25        35        45        55        65        75        85        95       105       115       125       135    |  145       155       165       175    
                                                                                                                                                                140  145                                  

Chain B from PDB  Type:PROTEIN  Length:170
 aligned with ICW3_PSOTE | P10822 from UniProtKB/Swiss-Prot  Length:207

    Alignment length:174
                                    36        46        56        66        76        86        96       106       116       126       136       146       156       166       176       186       196    
           ICW3_PSOTE    27 DLVDAEGNLVENGGTYYLLPHIWAHGGGIETAKTGNEPCPLTVVRSPNEVSKGEPIRISSQFLSLFIPRGSLVALGFANPPSCAASPWWTVVDSPQGPAVKLSQQKLPEKDILVFKFEKVSHSNIHVYKLLYCQHDEEDVKCDQYIGIHRDRNGNRRLVVTEENPLELVLLKAK 200
               SCOP domains d2beab_ B: automated matches                                                                                                                                                   SCOP domains
               CATH domains 2beaB00 B:6-179  [code=2.80.10.50, no name defined]                                                                                                                            CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ..............eeeeee........eeee.........eeee..........eeee..............eeee............eee......eee......hhhhh..eeeeeeee..eeeeeeeeee.----.eeeeeeeeee.....eeeee......eeeeee.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE -SOYBEAN_KUNITZ   ------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 2bea B   6 DLVDAEGNLVEGGGTYYLLPHIWAHGGGIETAKTGNEPCPLTVVRSPNEVSKGEPIRISSQFLSLFIPRGSLVALGFANPPSCAASPWWTVVDSPQGPAVKLSQQKLPEKDILVFKFEKVSHSNIHVYKLLYCQH----VKCDQYIGIHRDRNGNRRLVVTEENPLELVLLKAK 179
                                    15        25        35        45        55        65        75        85        95       105       115       125       135    |  145       155       165       175    
                                                                                                                                                                140  145                                  

   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 Unit

(-) CATH Domains  (1, 2)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2BEA)

(-) Gene Ontology  (5, 5)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (ICW3_PSOTE | P10822)
molecular function
    GO:0004866    endopeptidase inhibitor activity    Stops, prevents or reduces the activity of an endopeptidase, any enzyme that hydrolyzes nonterminal peptide bonds in polypeptides.
    GO:0030414    peptidase inhibitor activity    Stops, prevents or reduces the activity of a peptidase, any enzyme that catalyzes the hydrolysis peptide bonds.
    GO:0004867    serine-type endopeptidase inhibitor activity    Stops, prevents or reduces the activity of serine-type endopeptidases, enzymes that catalyze the hydrolysis of nonterminal peptide bonds in a polypeptide chain; a serine residue (and a histidine residue) are at the active center of the enzyme.
biological process
    GO:0010951    negative regulation of endopeptidase activity    Any process that decreases the frequency, rate or extent of endopeptidase activity, the endohydrolysis of peptide bonds within proteins.
    GO:0010466    negative regulation of peptidase activity    Any process that stops or reduces the rate of peptidase activity, the hydrolysis of peptide bonds within proteins.

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 Related Entries

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

UniProtKB/Swiss-Prot
        ICW3_PSOTE | P108221eyl 1fmz 1fn0 1wbc 1xg6 2beb 2esu 2et2 2qyi 2wbc 3i29 3i2a 3i2x 3qyd 3veq 4h9w 4ha2 4tlp 4wbc

(-) Related Entries Specified in the PDB File

1eyl
1fmz
2beb X-RAY STRUCTURE OF ASN TO THR MUTANT OF WINGED BEAN CHYMOTRYPSIN INHIBITOR