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(-) Description

Title :  CRYSTAL STRUCTURE OF PEANUT LECTIN LACTOSE-AZOBENZENE-4,4'-DICARBOXYLIC ACID-LACTOSE COMPLEX
 
Authors :  S. K. Natchiar, O. Srinivas, M. Nivedita, D. Sagarika, N. Jayaraman, A. Surolia, M. Vijayan
Date :  17 Mar 06  (Deposition) - 15 Aug 06  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  7.65
Chains :  Asym. Unit :  A,B,C,D
Biol. Unit 1:  A,D  (1x)
Biol. Unit 2:  B,C  (1x)
Keywords :  Legume Lectin, Agglutinin, Crosslink, Open Quaternary Structure, Carbohydrate Specificity, Multivalency, Sugar Binding Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  S. K. Natchiar, O. Srinivas, M. Nivedita, D. Sagarika, N. Jayaraman, A. Surolia, M. Vijayan
Multivalency In Lectins - A Crystallographic, Modelling And Light-Scattering Study Involving Peanut Lectin And A Bivalent Ligand
Curr. Sci. V. 90 1230 2006
PubMed: search
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - GALACTOSE-BINDING LECTIN
    ChainsA, B, C, D
    Organism CommonPEANUT
    Organism ScientificARACHIS HYPOGAEA
    Organism Taxid3818
    SynonymAGGLUTININ, PNA

 Structural Features

(-) Chains, Units

  1234
Asymmetric Unit ABCD
Biological Unit 1 (1x)A  D
Biological Unit 2 (1x) BC 

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 2DH1)

(-) Sites  (0, 0)

(no "Site" information available for 2DH1)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2DH1)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2DH1)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (3, 12)

Asymmetric Unit (3, 12)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_LECG_ARAHY_001 *E115VLECG_ARAHY  ---  ---A/B/C/DE92V
2UniProtVAR_LECG_ARAHY_002 *K172ALECG_ARAHY  ---  ---A/B/C/DK149A
3UniProtVAR_LECG_ARAHY_003 *K185ILECG_ARAHY  ---  ---A/B/C/DK162I
   * ID not provided by source

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 1 (3, 6)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_LECG_ARAHY_001 *E115VLECG_ARAHY  ---  ---A/DE92V
2UniProtVAR_LECG_ARAHY_002 *K172ALECG_ARAHY  ---  ---A/DK149A
3UniProtVAR_LECG_ARAHY_003 *K185ILECG_ARAHY  ---  ---A/DK162I
   * ID not provided by source

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)
Biological Unit 2 (3, 6)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
1UniProtVAR_LECG_ARAHY_001 *E115VLECG_ARAHY  ---  ---B/CE92V
2UniProtVAR_LECG_ARAHY_002 *K172ALECG_ARAHY  ---  ---B/CK149A
3UniProtVAR_LECG_ARAHY_003 *K185ILECG_ARAHY  ---  ---B/CK162I
   * ID not provided by source

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (2, 8)

Asymmetric Unit (2, 8)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1LECTIN_LEGUME_BETAPS00307 Legume lectins beta-chain signature.LECG_ARAHY141-147
 
 
 
  4A:118-124
B:118-124
C:118-124
D:118-124
2LECTIN_LEGUME_ALPHAPS00308 Legume lectins alpha-chain signature.LECG_ARAHY221-230
 
 
 
  4A:198-207
B:198-207
C:198-207
D:198-207
Biological Unit 1 (2, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1LECTIN_LEGUME_BETAPS00307 Legume lectins beta-chain signature.LECG_ARAHY141-147
 
 
 
  2A:118-124
-
-
D:118-124
2LECTIN_LEGUME_ALPHAPS00308 Legume lectins alpha-chain signature.LECG_ARAHY221-230
 
 
 
  2A:198-207
-
-
D:198-207
Biological Unit 2 (2, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1LECTIN_LEGUME_BETAPS00307 Legume lectins beta-chain signature.LECG_ARAHY141-147
 
 
 
  2-
B:118-124
C:118-124
-
2LECTIN_LEGUME_ALPHAPS00308 Legume lectins alpha-chain signature.LECG_ARAHY221-230
 
 
 
  2-
B:198-207
C:198-207
-

(-) Exons   (0, 0)

(no "Exon" information available for 2DH1)

(-) 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:232
 aligned with LECG_ARAHY | P02872 from UniProtKB/Swiss-Prot  Length:273

    Alignment length:232
                                    33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253  
           LECG_ARAHY    24 AETVSFNFNSFSEGNPAINFQGDVTVLSNGNIQLTNLNKVNSVGRVLYAMPVRIWSSATGNVASFLTSFSFEMKDIKDYDPADGIIFFIAPEDTQIPAGSIGGGTLGVSDTKGAGHFVGVEFDTYSNSEYNDPPTDHVGIDVNSVDSVKTVPWNSVSGAVVKVTVIYDSSTKTLSVAVTNDNGDITTIAQVVDLKAKLPERVKFGFSASGSLGGRQIHLIRSWSFTSTLITT 255
               SCOP domains d2dh1a1 A:1-232 Legume lectin                                                                                                                                                                                                            SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........................................................................................................................................................................................................................................ Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------V--------------------------------------------------------A------------I---------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------LECTIN_-------------------------------------------------------------------------LECTIN_LEG------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2dh1 A   1 AETVSFNFNSFSEGNPAINFQGDVTVLSNGNIQLTNLNKVNSVGRVLYAMPVRIWSSATGNVASFLTSFSFEMKDIKDYDPADGIIFFIAPEDTQIPAGSIGGGTLGVSDTKGAGHFVGVEFDTYSNSEYNDPPTDHVGIDVNSVDSVKTVPWNSVSGAVVKVTVIYDSSTKTLSVAVTNDNGDITTIAQVVDLKAKLPERVKFGFSASGSLGGRQIHLIRSWSFTSTLITT 232
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230  

Chain B from PDB  Type:PROTEIN  Length:232
 aligned with LECG_ARAHY | P02872 from UniProtKB/Swiss-Prot  Length:273

    Alignment length:232
                                    33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253  
           LECG_ARAHY    24 AETVSFNFNSFSEGNPAINFQGDVTVLSNGNIQLTNLNKVNSVGRVLYAMPVRIWSSATGNVASFLTSFSFEMKDIKDYDPADGIIFFIAPEDTQIPAGSIGGGTLGVSDTKGAGHFVGVEFDTYSNSEYNDPPTDHVGIDVNSVDSVKTVPWNSVSGAVVKVTVIYDSSTKTLSVAVTNDNGDITTIAQVVDLKAKLPERVKFGFSASGSLGGRQIHLIRSWSFTSTLITT 255
               SCOP domains d2dh1b1 B:1-232 Legume lectin                                                                                                                                                                                                            SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........................................................................................................................................................................................................................................ Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------V--------------------------------------------------------A------------I---------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------LECTIN_-------------------------------------------------------------------------LECTIN_LEG------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2dh1 B   1 AETVSFNFNSFSEGNPAINFQGDVTVLSNGNIQLTNLNKVNSVGRVLYAMPVRIWSSATGNVASFLTSFSFEMKDIKDYDPADGIIFFIAPEDTQIPAGSIGGGTLGVSDTKGAGHFVGVEFDTYSNSEYNDPPTDHVGIDVNSVDSVKTVPWNSVSGAVVKVTVIYDSSTKTLSVAVTNDNGDITTIAQVVDLKAKLPERVKFGFSASGSLGGRQIHLIRSWSFTSTLITT 232
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230  

Chain C from PDB  Type:PROTEIN  Length:232
 aligned with LECG_ARAHY | P02872 from UniProtKB/Swiss-Prot  Length:273

    Alignment length:232
                                    33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253  
           LECG_ARAHY    24 AETVSFNFNSFSEGNPAINFQGDVTVLSNGNIQLTNLNKVNSVGRVLYAMPVRIWSSATGNVASFLTSFSFEMKDIKDYDPADGIIFFIAPEDTQIPAGSIGGGTLGVSDTKGAGHFVGVEFDTYSNSEYNDPPTDHVGIDVNSVDSVKTVPWNSVSGAVVKVTVIYDSSTKTLSVAVTNDNGDITTIAQVVDLKAKLPERVKFGFSASGSLGGRQIHLIRSWSFTSTLITT 255
               SCOP domains d2dh1c1 C:1-232 Legume lectin                                                                                                                                                                                                            SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........................................................................................................................................................................................................................................ Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------V--------------------------------------------------------A------------I---------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------LECTIN_-------------------------------------------------------------------------LECTIN_LEG------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2dh1 C   1 AETVSFNFNSFSEGNPAINFQGDVTVLSNGNIQLTNLNKVNSVGRVLYAMPVRIWSSATGNVASFLTSFSFEMKDIKDYDPADGIIFFIAPEDTQIPAGSIGGGTLGVSDTKGAGHFVGVEFDTYSNSEYNDPPTDHVGIDVNSVDSVKTVPWNSVSGAVVKVTVIYDSSTKTLSVAVTNDNGDITTIAQVVDLKAKLPERVKFGFSASGSLGGRQIHLIRSWSFTSTLITT 232
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230  

Chain D from PDB  Type:PROTEIN  Length:232
 aligned with LECG_ARAHY | P02872 from UniProtKB/Swiss-Prot  Length:273

    Alignment length:232
                                    33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253  
           LECG_ARAHY    24 AETVSFNFNSFSEGNPAINFQGDVTVLSNGNIQLTNLNKVNSVGRVLYAMPVRIWSSATGNVASFLTSFSFEMKDIKDYDPADGIIFFIAPEDTQIPAGSIGGGTLGVSDTKGAGHFVGVEFDTYSNSEYNDPPTDHVGIDVNSVDSVKTVPWNSVSGAVVKVTVIYDSSTKTLSVAVTNDNGDITTIAQVVDLKAKLPERVKFGFSASGSLGGRQIHLIRSWSFTSTLITT 255
               SCOP domains d2dh1d1 D:1-232 Legume lectin                                                                                                                                                                                                            SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........................................................................................................................................................................................................................................ Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------V--------------------------------------------------------A------------I---------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------LECTIN_-------------------------------------------------------------------------LECTIN_LEG------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2dh1 D   1 AETVSFNFNSFSEGNPAINFQGDVTVLSNGNIQLTNLNKVNSVGRVLYAMPVRIWSSATGNVASFLTSFSFEMKDIKDYDPADGIIFFIAPEDTQIPAGSIGGGTLGVSDTKGAGHFVGVEFDTYSNSEYNDPPTDHVGIDVNSVDSVKTVPWNSVSGAVVKVTVIYDSSTKTLSVAVTNDNGDITTIAQVVDLKAKLPERVKFGFSASGSLGGRQIHLIRSWSFTSTLITT 232
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230  

   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, 4)

Asymmetric Unit

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2DH1)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2DH1)

(-) Gene Ontology  (2, 2)

Asymmetric Unit(hide GO term definitions)
Chain A,B,C,D   (LECG_ARAHY | P02872)
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.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.

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 Related Entries

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

UniProtKB/Swiss-Prot
        LECG_ARAHY | P028721bzw 1ciw 1cq9 1cr7 1qf3 1rir 1rit 1v6i 1v6j 1v6k 1v6l 1v6m 1v6n 1v6o 2dv9 2dva 2dvb 2dvd 2dvf 2dvg 2pel 2tep

(-) Related Entries Specified in the PDB File

1v6i PEANUT LECTIN-LACTOSE COMPLEX IN ACIDIC PH
2pel PEANUT LECTIN-LACTOSE COMPLEX AT NEUTRAL PH
2tep PEANUT LECTIN T-ANTIGEN COMPLEX AT NEUTRAL PH