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(-) Description

Title :  STRUCTURE OF HELIX POMATIA AGGLUTININ WITH TN ANTIGEN
 
Authors :  J. -F. Sanchez, J. Lescar, A. Audfray, C. Gautier, V. Chazalet, J. Gagnon, C. Breton, A. Imberty, E. P. Mitchell
Date :  10 Mar 06  (Deposition) - 01 May 07  (Release) - 28 Sep 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.80
Chains :  Asym. Unit :  A
Biol. Unit 1:  A  (6x)
Keywords :  Lectin, Snail, Sugar Binding Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  J. Lescar, J. -F. Sanchez, A. Audfray, J. Coll, C. Breton, E. P. Mitchell, A. Imberty
Structural Basis For Recognition Of Breast And Colon Cancer Epitopes Tn Antigen And Forssman Disaccharide By Helix Pomatia Lectin.
Glycobiology V. 17 1077 2007
PubMed-ID: 17652409  |  Reference-DOI: 10.1093/GLYCOB/CWM077

(-) Compounds

Molecule 1 - AGGLUTININ
    Chains: A
    Organ: ALBUMIN GLAND
    Organism Common: ROMAN SNAIL
    Organism Scientific: HELIX POMATIA
    Organism Taxid: 6536
    Other Details: GLYCOLYSIS SITE AT N34
    Other Details - Source: SIGMA-ALDRICH

 Structural Features

(-) Chains, Units

  1
Asymmetric Unit : A
Biological Unit 1 (6x): A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 2)

Asymmetric Unit (2, 2)
No.NameCountTypeFull Name
1NAG1Ligand/IonN-ACETYL-D-GLUCOSAMINE
2TNR1Ligand/IonO-(2-ACETAMIDO-2-DEOXY-ALPHA-D-GALACTOPYRANOSYL)-L-SERINE
Biological Unit 1 (2, 12)
No.NameCountTypeFull Name
1NAG6Ligand/IonN-ACETYL-D-GLUCOSAMINE
2TNR6Ligand/IonO-(2-ACETAMIDO-2-DEOXY-ALPHA-D-GALACTOPYRANOSYL)-L-SERINE

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLY A:24 , ARG A:25 , ASP A:26 , ASP A:55 , ASN A:61 , ARG A:63 , TRP A:83 , HIS A:84 , TYR A:89BINDING SITE FOR RESIDUE TNR A1102
2AC2SOFTWAREASN A:34BINDING SITE FOR MONO-SACCHARIDE NAG A1101 BOUND TO ASN A 34

(-) SS Bonds  (1, 1)

Asymmetric Unit
No.Residues
1A:9 -A:80

(-) Cis Peptide Bonds  (0, 0)

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 Sequence-Structure Mapping

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(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
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Chain A from PDB  Type:PROTEIN  Length:100
 aligned with Q2F1K8_HELPO | Q2F1K8 from UniProtKB/TrEMBL  Length:121

    Alignment length:100
                                    30        40        50        60        70        80        90       100       110       120
         Q2F1K8_HELPO    21 RVQSGKIDCGNDAGWAKVPSDDPGRDNTRELAKNITFASPYCRPPVVLLSITQLDVEQSQNLRVIARLYSVSPTGFKASCYTWHNTKVYSMSISWISIEN 120
               SCOP domains d2cgza_ A: automated matches                                                                         SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .eeeeeeee.hhhhheee.........eeeeeeeeee........eeeeeeeeeeee......eeeeeeeee..eeeeeeeee....eeeeeeeeeeee. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------- Transcript
                 2cgz A   1 RVQSGKINCGDDAGWAKVPSDDPGRDNTRELAKNITFASPYCRPPVVLLSITQLDVEQSQNLRVIARLYSVSPTGFKASCYTWHNTKVYSMSISWISIEN 100
                                    10        20        30        40        50        60        70        80        90       100
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 Classification and Annotation

(-) SCOP Domains  (1, 1)

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

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2CGZ)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (2, 2)

Asymmetric Unit(hide GO term definitions)
Chain A   (Q2F1K8_HELPO | Q2F1K8)
molecular function
    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.
biological process
    GO:0007155    cell adhesion    The attachment of a cell, either to another cell or to an underlying substrate such as the extracellular matrix, via cell adhesion molecules.

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 Related Entries

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

UniProtKB/TrEMBL
        Q2F1K8_HELPO | Q2F1K8: 2ccv 2ce6 2cgy

(-) Related Entries Specified in the PDB File

2ccv STRUCTURE OF HELIX POMATIA AGGLUTININ WITH ZINC AND N-ACETYL-ALPHA-D-GALACTOSEAMINE (GALNAC)
2ce6 STRUCTURE OF HELIX POMATIA AGGLUTININ WITH NO LIGANDS
2cgy STRUCTURE OF HELIX POMATIA AGGLUTININ WITH FORSMANN ANTIGEN