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(-) Description

Title :  CRYSTAL STRUCTURE OF A LLAMA ANTIBODY COMPLEXED WITH THE C. BOTULINUM NEUROTOXIN SEROTYPE A CATALYTIC DOMAIN
 
Authors :  A. A. Thompson, J. Dong, J. D. Marks, R. C. Stevens
Date :  04 Oct 09  (Deposition) - 23 Feb 10  (Release) - 07 Apr 10  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.60
Chains :  Asym. Unit :  A,B,C
Biol. Unit 1:  A,B,C  (2x)
Biol. Unit 2:  A,B,C  (1x)
Keywords :  Llama, Vhh, Antibody, Botulinum, Neurotoxin, Bont, Cell Junction, Cell Membrane, Cytoplasm, Disulfide Bond, Hydrolase, Membrane, Metal-Binding, Metalloprotease, Pharmaceutical, Protease, Secreted, Synapse, Toxin, Transmembrane, Zinc, Immune System (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  J. Dong, A. A. Thompson, Y. Fan, J. Lou, F. Conrad, M. Ho, M. Pires-Alves, B. A. Wilson, R. C. Stevens, J. D. Marks
A Single-Domain Llama Antibody Potently Inhibits The Enzymatic Activity Of Botulinum Neurotoxin By Binding To The Non-Catalytic Alpha-Exosite Binding Region.
J. Mol. Biol. V. 397 1106 2010
PubMed-ID: 20138889  |  Reference-DOI: 10.1016/J.JMB.2010.01.070

(-) Compounds

Molecule 1 - LLAMA AA1 VHH DOMAIN
    ChainsA
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET20B
    Expression System StrainBL21 (DE3)
    Expression System Taxid562
    Expression System Vector TypePLASMID
    GeneLLAMA VHH IMMUNOGLOBULIN
    Organism ScientificLAMA GLAMA
    Organism Taxid9844
 
Molecule 2 - BOTULINUM NEUROTOXIN TYPE A
    ChainsB
    EC Number3.4.24.69
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET15B
    Expression System StrainBL21 (DE3)
    Expression System Taxid562
    Expression System Vector TypePLASMID
    FragmentN-TERMINAL FRAGMENT OF BONT CATALYTIC DOMAIN (RESIDUES 3-250)
    GeneBOTA, CBO0806, CLC_0862, NEUROTOXIN CATALYTIC DOMAIN
    Organism ScientificCLOSTRIDIUM BOTULINUM A STR. HALL
    Organism Taxid441771
    SynonymBONT/A, BONTOXILYSIN-A, BOTOX, BOTULINUM NEUROTOXIN A LIGHT CHAIN
 
Molecule 3 - BOTULINUM NEUROTOXIN TYPE A
    ChainsC
    EC Number3.4.24.69
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System PlasmidPET15B
    Expression System StrainBL21 (DE3)
    Expression System Taxid562
    Expression System Vector TypePLASMID
    FragmentC-TERMINAL FRAGMENT OF BONT CATALYTIC DOMAIN (RESIDUES 251-425)
    GeneBOTA, CBO0806, CLC_0862, NEUROTOXIN CATALYTIC DOMAIN
    Organism ScientificCLOSTRIDIUM BOTULINUM A STR. HALL
    Organism Taxid441771
    SynonymBONT/A, BONTOXILYSIN-A, BOTOX, BOTULINUM NEUROTOXIN A LIGHT CHAIN

 Structural Features

(-) Chains, Units

  123
Asymmetric Unit ABC
Biological Unit 1 (2x)ABC
Biological Unit 2 (1x)ABC

Summary Information (see also Sequences/Alignments below)

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

Asymmetric Unit (1, 1)
No.NameCountTypeFull Name
1ZN1Ligand/IonZINC ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1ZN-1Ligand/IonZINC ION
Biological Unit 2 (0, 0)
No.NameCountTypeFull Name
1ZN-1Ligand/IonZINC ION

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREHIS B:223 , HIS B:227 , TYR B:250 , GLU C:262BINDING SITE FOR RESIDUE ZN B 251

(-) SS Bonds  (1, 1)

Asymmetric Unit
No.Residues
1A:25 -A:110

(-) Cis Peptide Bonds  (1, 1)

Asymmetric Unit
No.Residues
1Ile A:124 -Pro A:125

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3K3Q)

(-) PROSITE Motifs  (1, 1)

Asymmetric Unit (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ZINC_PROTEASEPS00142 Neutral zinc metallopeptidases, zinc-binding region signature.BXA1_CLOBH220-229  1B:220-229
Biological Unit 1 (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ZINC_PROTEASEPS00142 Neutral zinc metallopeptidases, zinc-binding region signature.BXA1_CLOBH220-229  2B:220-229
Biological Unit 2 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ZINC_PROTEASEPS00142 Neutral zinc metallopeptidases, zinc-binding region signature.BXA1_CLOBH220-229  1B:220-229

(-) Exons   (0, 0)

(no "Exon" information available for 3K3Q)

(-) 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:137
                                                                                                                                                                         
               SCOP domains d3k3qa_ A: automated matches                                                                                                              SCOP domains
               CATH domains 3k3qA00 A:4-140 Immunoglobulins                                                                                                           CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeee..eeee....eeeeeeee.........hhhhh....eeeeeee.....eeeeeee......eee.hhhh...eeee.....eeeeee........eeeeeeee...hhhhhhhh....ee...eeeeee. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3k3q A   4 AVQLVDSGGGTLQAGKSLRLSCAISGLAFDGGAMGSEHRLTAGAMGWFRQAPGKDREFVAAISPRTDETYYAESLEGRFSVSRDAAATMVFLQADNVRLDDTASYYCAADEDVTPRVMGVIPHADHWGQGTLVTVSS 140
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       

Chain B from PDB  Type:PROTEIN  Length:238
 aligned with BXA1_CLOBH | A5HZZ9 from UniProtKB/Swiss-Prot  Length:1296

    Alignment length:249
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241         
           BXA1_CLOBH     2 PFVNKQFNYKDPVNGVDIAYIKIPNAGQMQPVKAFKIHNKIWVIPERDTFTNPEEGDLNPPPEAKQVPVSYYDSTYLSTDNEKDNYLKGVTKLFERIYSTDLGRMLLTSIVRGIPFWGGSTIDTELKVIDTNCINVIQPDGSYRSEELNLVIIGPSADIIQFECKSFGHEVLNLTRNGYGSTQYIRFSPDFTFGFEESLEVDTNPLLGAGKFATDPAVTLAHELIHAGHRLYGIAINPNRVFKVNTNAY 250
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains 3k3qB00 B:2-250 Metalloproteases ('zincins'), catalytic domain like                                                                                                                                                                                       CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .................eeeeehhhhh....eeeeeee..eeeeeee...............................hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...........ee..hhh.eeeee.....eeeee..eeeee........eeee................eeee....eeeeee..-----------.eee.hhhhhhhhhhhhhhhhhh........eeeee.... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ZINC_PROTE--------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3k3q B   2 QFVNKQFNYKDPVNGVDIAYIKIPNVGQMQPVKAFKIHNKIWVIPERDTFTNPEEGDLNPPPEAKQVPVSYYDSTYLSTDNEKDNYLKGVTKLFERIYSTDLGRMLLTSIVRGIPFWGGSTIDTELKVIDTNCINVIQPDGSYRSEELNLVIIGPSADIIQFECKSFGHEVLNLTRNGYGSTQYIRFSPDFTFGFEES-----------GKFATDPAVTLAHELIHAGHRLYGIAINPNRVFKVNTNAY 250
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       | -       211       221       231       241         
                                                                                                                                                                                                                               199         211                                       

Chain C from PDB  Type:PROTEIN  Length:165
 aligned with BXA1_CLOBH | A5HZZ9 from UniProtKB/Swiss-Prot  Length:1296

    Alignment length:165
                                   262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412     
           BXA1_CLOBH   253 MSGLEVSFEELRTFGGHDAKFIDSLQENEFRLYYYNKFKDIASTLNKAKSIVGTTASLQYMKNVFKEKYLLSEDTSGKFSVDKLKFDKLYKMLTEIYTEDNFVKFFKVLNRKTYLNFDKAVFKINIVPKVNYTIYDGFNLRNTNLAANFNGQNTEINNMNFTKLK 417
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeehhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh.ee.....hhhhhhhhhhhhh..ee.....ee.hhhhhhhhhhhhhh..hhhhhhhhhh.............eee.........................hhhhh...hhhhhee.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3k3q C 253 MSGLEVSFEELRTFGGHDAKFIDSLQENEFRLYYYNKFKDIASTLNKAKSIVGTTASLQYMKNVFKEKYLLSEDTSGKFSVDKLKFDKLYKMLTEIYTEDNFVKFFKVLNRKTYLNFDKAVFKINIVPKVNYTIYDGFNLRNTNLAANFNGQNTEINNMNFTKLK 417
                                   262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412     

   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 Unit

(-) CATH Domains  (2, 2)

Asymmetric Unit
(-)
Class: Alpha Beta (26913)
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3K3Q)

(-) Gene Ontology  (19, 19)

Asymmetric Unit(hide GO term definitions)
Chain B,C   (BXA1_CLOBH | A5HZZ9)
molecular function
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0004222    metalloendopeptidase activity    Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a mechanism in which water acts as a nucleophile, one or two metal ions hold the water molecule in place, and charged amino acid side chains are ligands for the metal ions.
    GO:0008237    metallopeptidase activity    Catalysis of the hydrolysis of peptide bonds by a mechanism in which water acts as a nucleophile, one or two metal ions hold the water molecule in place, and charged amino acid side chains are ligands for the metal ions.
    GO:0008233    peptidase activity    Catalysis of the hydrolysis of a peptide bond. A peptide bond is a covalent bond formed when the carbon atom from the carboxyl group of one amino acid shares electrons with the nitrogen atom from the amino group of a second amino acid.
    GO:0008270    zinc ion binding    Interacting selectively and non-covalently with zinc (Zn) ions.
biological process
    GO:0051609    inhibition of neurotransmitter uptake    Any process that prevents the activation of the directed movement of a neurotransmitter into a cell.
    GO:0009405    pathogenesis    The set of specific processes that generate the ability of an organism to induce an abnormal, generally detrimental state in another organism.
    GO:0006508    proteolysis    The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
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:0030430    host cell cytoplasm    The cytoplasm of a host cell.
    GO:0044164    host cell cytosol    The part of the host cell cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
    GO:0044156    host cell junction    A plasma membrane part that forms a specialized region of connection between two host cells or between a host cell and the host extracellular matrix. At a host cell junction, anchoring proteins extend through the host plasma membrane to link cytoskeletal proteins in one cell to cytoskeletal proteins in neighboring cells or to proteins in the extracellular matrix.
    GO:0033644    host cell membrane    Double layer of lipid molecules as it encloses host cells, and, in eukaryotes, many organelles; may be a single or double lipid bilayer; also includes associated proteins. The host is defined as the larger of the organisms involved in a symbiotic interaction.
    GO:0020002    host cell plasma membrane    The plasma membrane surrounding a host cell.
    GO:0044231    host cell presynaptic membrane    A specialized area of membrane of the host axon terminal that faces the plasma membrane of the host neuron or muscle fiber with which the axon terminal establishes a synaptic junction; many host synaptic junctions exhibit structural presynaptic characteristics, such as conical, electron-dense internal protrusions, that distinguish it from the remainder of the axon plasma membrane.
    GO:0044221    host cell synapse    The junction between a nerve fiber of one host neuron and another host neuron or muscle fiber or glial cell; the site of interneuronal communication.
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.

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 Related Entries

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

UniProtKB/Swiss-Prot
        BXA1_CLOBH | A5HZZ91xtf 1xtg 2w2d 3bwi 3c8a 3c8b 3dda 3ddb 3ds9 3dse 3qix 3qiy 3qiz 3qj0 3qw5 3qw6 3qw7 3qw8 4ks6 4ktx 4kuf

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 3K3Q)