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(-) Description

Title :  FUCOSE BINDING LECTIN
 
Authors :  M. A. Bianchet, E. W. Odom, G. R. Vasta, L. M. Amzel
Date :  23 Sep 01  (Deposition) - 31 Jul 02  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.90
Chains :  Asym./Biol. Unit :  A
Keywords :  Beta Barrel, Protein Carbohydrate Complex, Sugar Binding Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  M. A. Bianchet, E. W. Odom, G. R. Vasta, L. M. Amzel
A Novel Fucose Recognition Fold Involved In Innate Immunity.
Nat. Struct. Biol. V. 9 628 2002
PubMed-ID: 12091873
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - LECTIN
    Chains: A
    Organism Common: EUROPEAN EEL
    Organism Scientific: ANGUILLA ANGUILLA
    Organism Taxid: 7936

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (3, 3)
No.NameCountTypeFull Name
1CA1Ligand/IonCALCIUM ION
2CL1Ligand/IonCHLORIDE ION
3FUC1Ligand/IonALPHA-L-FUCOSE

(-) Sites  (3, 3)

Asymmetric Unit (3, 3)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREPHE A:45 , TYR A:46 , HIS A:52 , ARG A:79 , CYS A:82 , CYS A:83 , GLU A:85 , ARG A:86 , HOH A:216 , HOH A:270BINDING SITE FOR RESIDUE FUC A 159
2AC2SOFTWAREASN A:35 , ASP A:38 , ASN A:40 , SER A:49 , CYS A:146 , GLU A:147BINDING SITE FOR RESIDUE CA A 160
3AC3SOFTWARELYS A:16 , HOH A:281BINDING SITE FOR RESIDUE CL A 301

(-) SS Bonds  (3, 3)

Asymmetric/Biological Unit
No.Residues
1A:50 -A:146
2A:82 -A:83
3A:108 -A:124

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1K12)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1K12)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1K12)

(-) Exons   (0, 0)

(no "Exon" information available for 1K12)

(-) 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:158
 aligned with FUCL_ANGAN | Q7SIC1 from UniProtKB/Swiss-Prot  Length:158

    Alignment length:158
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150        
           FUCL_ANGAN     1 VIPEGYTQENVAVRGKATQSAQLRGEHAANSEASNAIDGNRDSNFYHGSCTHSSGQANPWWRVDLLQVYTITSVTITNRGDCCGERISGAEINIGQHLASNGVNNPECSVIGSMATGETKTFHCPAPMIGRYVVTYLPTSESLHLCEVEVNVDKPAAA 158
               SCOP domains d1k12a_ A: Fucose binding lectin                                                                                                                               SCOP domains
               CATH domains 1k12A00 A:1-158 Galactose-binding domain-like                                                                                                                  CATH domains
               Pfam domains ---------------F5_F8_type_C-1k12A01 A:16-148                                                                                                        ---------- Pfam domains
         Sec.struct. author .....eeeee.hhhheeee.......hhhhhhhhhhhh.....hhhhh...........eeeeeeeeeeeeeeeeeee............eeeee...........eeee........eeeeeeeeeeeeeeeeee........eeeeeeeeeee... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1k12 A   1 VIPEGYTQENVAVRGKATQSAQLRGEHAANSEASNAIDGNRDSNFYHGSCTHSSGQANPWWRVDLLQVYTITSVTITNRGDCCGERISGAEINIGQHLASNGVNNPECSVIGSMATGETKTFHCPAPMIGRYVVTYLPTSESLHLCEVEVNVDKPAAA 158
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150
   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: All beta proteins (24004)

(-) CATH Domains  (1, 1)

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

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Clan: GBD (153)

(-) Gene Ontology  (8, 8)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (FUCL_ANGAN | Q7SIC1)
molecular function
    GO:0005509    calcium ion binding    Interacting selectively and non-covalently with calcium ions (Ca2+).
    GO:0030246    carbohydrate binding    Interacting selectively and non-covalently with any carbohydrate, which includes monosaccharides, oligosaccharides and polysaccharides as well as substances derived from monosaccharides by reduction of the carbonyl group (alditols), by oxidation of one or more hydroxy groups to afford the corresponding aldehydes, ketones, or carboxylic acids, or by replacement of one or more hydroxy group(s) by a hydrogen atom. Cyclitols are generally not regarded as carbohydrates.
    GO:0042806    fucose binding    Interacting selectively and non-covalently with fucose, the pentose 6-deoxygalactose.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
biological process
    GO:0010185    regulation of cellular defense response    Any process that modulates the frequency, rate or extent of cellular defense response.
    GO:0001868    regulation of complement activation, lectin pathway    Any process that modulates the frequency, rate or extent of the lectin pathway of complement activation.
    GO:0045088    regulation of innate immune response    Any process that modulates the frequency, rate or extent of the innate immune response, the organism's first line of defense against infection.
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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