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(-) Description

Title :  CRYSTAL STRUCTURE OF HAEMENTHIN FROM HAEMANTHUS MULTIFLORUS AT 2.0A RESOLUTION: FORMATION OF A NOVEL LOOP ON A TIM BARREL FOLD AND ITS FUNCTIONAL SIGNIFICANCE
 
Authors :  S. Kumar, N. Singh, M. Sinha, S. B. Singh, A. Bhushan, P. Kaur, A. Srinivasan, S. Sharma, T. P. Singh
Date :  16 May 08  (Deposition) - 31 Mar 09  (Release) - 31 Mar 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym./Biol. Unit :  A
Keywords :  Tim Barrel, Protein Binding (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  S. Kumar, N. Singh, M. Sinha, S. B. Singh, A. Bhushan, P. Kaur, A. Srinivasan, S. Sharma, T. P. Singh
Crystal Structure Of Haementhin From Haemanthus Multiflorus At 2. 0A Resolution: Formation Of A Novel Loop On A Tim Barrel Fold And Its Functional Significance
To Be Published
PubMed: search
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - HAEMENTHIN
    Chains: A
    Organism Scientific: SCADOXUS MULTIFLORUS
    Organism Taxid: 82246

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (2, 2)
No.NameCountTypeFull Name
1ACT1Ligand/IonACETATE ION
2PO41Ligand/IonPHOSPHATE ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETYR A:188 , PRO A:229 , LYS A:232BINDING SITE FOR RESIDUE ACT A 1209
2AC2SOFTWAREHIS A:51 , SER A:52 , HOH A:6290 , HOH A:6357BINDING SITE FOR RESIDUE PO4 A 6265

(-) SS Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1A:22 -A:63
2A:157 -A:186

(-) Cis Peptide Bonds  (3, 3)

Asymmetric/Biological Unit
No.Residues
1Gly A:33 -Phe A:34
2Tyr A:159 -Pro A:160
3Trp A:253 -Asp A:254

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3D5H)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3D5H)

(-) Exons   (0, 0)

(no "Exon" information available for 3D5H)

(-) 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:272
 aligned with B2ZGS7_9ASPA | B2ZGS7 from UniProtKB/TrEMBL  Length:272

    Alignment length:272
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270  
         B2ZGS7_9ASPA     1 ANLDIAVYWGQNFDERSLEATCDTGNYAYVIIGFLNTFGGGQTPALDISGHSPSGLEPQIKHCQSKNVKVLLSIGGPKGPYSLDSRSDANDLAVYLFNNFLLPPGHSENRPFGNAVLDGIDFHIEHGGPSQYQLLANILSSFRLAGTEFALTAAPQCVYPDPNLGTVINSATFDAIWVQFYNNPQCSYSSGNAEALMNAWREWSMKARTKKVFLGFPAHPDAAGSGYMPPEKVKFHVFPAAKKSYKFGGIMLWDSYWDTVSNFSSKILGEGW 272
               SCOP domains d3d5ha_ A: automated matches                                                                                                                                                                                                                                                     SCOP domains
               CATH domains 3d5hA00 A:1-272 Glycosidases                                                                                                                                                                                                                                                     CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ....eeeee.......hhhhhhhh....eeeeeee.eee..eeee.......hhhhhhhhhhhhhh..eeeeeee.........hhhhhhhhhhhhhhhhh.................eeeee.......hhhhhhhhhhhhhh.....eeee..........hhhhhh.....eeeee.............hhhhhhhhhhhhhhh...eeeeeee...........hhhhhhhhhhhhhh....eeeeeeehhhhhhhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3d5h A   1 ANLDIAVYWGQNFDERSLEATCDTGNYAYVIIGFLNTFGGGQTPALDISGHSPSGLEPQIKHCQSKNVKVLLSIGGPKGPYSLDSRSDANDLAVYLFNNFLLPPGHSENRPFGNAVLDGIDFHIEHGGPSQYQLLANILSSFRLAGTEFALTAAPQCVYPDPNLGTVINSATFDAIWVQFYNNPQCSYSSGNAEALMNAWREWSMKARTKKVFLGFPAHPDAAGSGYMPPEKVKFHVFPAAKKSYKFGGIMLWDSYWDTVSNFSSKILGEGW 272
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270
   Legend:   → Mismatch (orange background)
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  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: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3D5H)

(-) Gene Ontology  (4, 4)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (B2ZGS7_9ASPA | B2ZGS7)
molecular function
    GO:0015066    alpha-amylase inhibitor activity    Stops, prevents or reduces the activity of alpha-amylase.
    GO:0004553    hydrolase activity, hydrolyzing O-glycosyl compounds    Catalysis of the hydrolysis of any O-glycosyl bond.
biological process
    GO:0005975    carbohydrate metabolic process    The chemical reactions and pathways involving carbohydrates, any of a group of organic compounds based of the general formula Cx(H2O)y. Includes the formation of carbohydrate derivatives by the addition of a carbohydrate residue to another molecule.
    GO:0043086    negative regulation of catalytic activity    Any process that stops or reduces the activity of an enzyme.

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 Related Entries

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        B2ZGS7_9ASPA | B2ZGS7: 3hu7 3m7s 3oih

(-) Related Entries Specified in the PDB File

2hvm HEVAMINE A AT 1.8 ANGSTROM RESOLUTION