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(-) Description

Title :  CRYSTAL STRUCTURE OF LIMULUS POLYPHEMUS SAP
 
Authors :  A. K. Shrive, A. M. Metcalfe, J. R. Cartwright, T. J. Greenhough
Date :  28 Jun 99  (Deposition) - 28 Jun 00  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  3.00
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A,B  (8x)
Keywords :  Pentraxin Fold, Physiological Doubly-Stacked Octamer, Cyclic Octamer, Invertebrate Lectin, Sugar Binding Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  A. K. Shrive, A. M. Metcalfe, J. R. Cartwright, T. J. Greenhough
C-Reactive Protein And Sap-Like Pentraxin Are Both Present In Limulus Polyphemus Haemolymph: Crystal Structure Of Limulus Sap.
J. Mol. Biol. V. 290 997 1999
PubMed-ID: 10438598  |  Reference-DOI: 10.1006/JMBI.1999.2956
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PROTEIN (SERUM AMYLOID P COMPONENT)
    Chains: A, B
    Organism Common: ATLANTIC HORSESHOE CRAB
    Organism Scientific: LIMULUS POLYPHEMUS
    Organism Taxid: 6850
    Synonym: SAP
    Tissue: HAEMOLYMPH

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit : AB
Biological Unit 1 (8x): AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 434)

Asymmetric Unit (1, 434)
No.NameCountTypeFull Name
1UNK434Mod. Amino Acid
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1UNK-1Mod. Amino Acid

(-) Sites  (0, 0)

(no "Site" information available for 1QTJ)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1QTJ)

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 1QTJ)

(-) 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:217
                                                                                                                                                                                                                                                         
               SCOP domains d1qtja_ A: Serum amyloid P component, SAP                                                                                                                                                                                 SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhh.eeeee.........eeee........eeeeeeeeee.....eeeeeee.......eeeeeee....eeeeeeee..eeeeeeeeeee.....eeeeeeeee....eeeeee..eeeeee.............eeee...........hhhhh..eeeeeeeee....hhhhhhhhhh.................eeee...eeee...... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1qtj A   1 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 217
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Chain B from PDB  Type:PROTEIN  Length:217
                                                                                                                                                                                                                                                         
               SCOP domains d1qtjb_ B: Serum amyloid P component, SAP                                                                                                                                                                                 SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..hhh.eeeee.........eeee........eeeeeeeeee.....eeeeeee.......eeeeeee....eeeeeeee..eeeeeeeeeee.....eeeeeeeee....eeeeee..eeeeee.............eeee...........hhhhh..eeeeeeeee....hhhhhhhhhh.................eeee...eeee...... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1qtj B   1 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 217
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   Legend:   → Mismatch (orange background)
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    → 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, 2)

Asymmetric Unit
(-)
Class: Low resolution protein structures (283)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 1QTJ)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1QTJ)

(-) Gene Ontology  (0, 0)

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 Related Entries

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

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(-) Related Entries Specified in the PDB File

1gnh HUMAN C-REACTIVE PROTEIN STRUCTURE
1sac HUMAN SAP STRUCTURE