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(-) Description

Title :  CARBOXYSOME SHELL PROTEIN CCMK4, CRYSTAL FORM 2
 
Authors :  C. A. Kerfeld, M. R. Sawaya, S. Tanaka, C. V. Nguyen, M. Phillips, M. Beeb T. O. Yeates
Date :  18 Jun 05  (Deposition) - 09 Aug 05  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.28
Chains :  Asym. Unit :  A,B,C
Biol. Unit 1:  A,B,C  (2x)
Keywords :  Cyclic Hexamer; C6 Point Symmetry, Carboxysome (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  C. A. Kerfeld, M. R. Sawaya, S. Tanaka, C. V. Nguyen, M. Phillips, M. Beeby, T. O. Yeates
Protein Structures Forming The Shell Of Primitive Bacterial Organelles
Science V. 309 936 2005
PubMed-ID: 16081736  |  Reference-DOI: 10.1126/SCIENCE.1113397

(-) Compounds

Molecule 1 - CARBON DIOXIDE CONCENTRATING MECHANISM PROTEIN CCMK HOMOLOG 4
    Chains: A, B, C
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET22B
    Expression System Strain: BL21-GOLD DE3
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: CCMK4
    Organism Scientific: SYNECHOCYSTIS SP.
    Organism Taxid: 1148
    Strain: PCC 6803
    Synonym: CCMK4

 Structural Features

(-) Chains, Units

  123
Asymmetric Unit : ABC
Biological Unit 1 (2x): ABC

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 3)

Asymmetric Unit (1, 3)
No.NameCountTypeFull Name
1NH43Ligand/IonAMMONIUM ION
Biological Unit 1 (1, 6)
No.NameCountTypeFull Name
1NH46Ligand/IonAMMONIUM ION

(-) Sites  (3, 3)

Asymmetric Unit (3, 3)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREILE A:66 , ASN A:67 , THR A:69 , ALA A:72 , HOH A:132BINDING SITE FOR RESIDUE NH4 A 126
2AC2SOFTWAREILE B:66 , ASN B:67 , THR B:69 , ALA B:72 , HOH B:128BINDING SITE FOR RESIDUE NH4 B 126
3AC3SOFTWAREILE C:66 , ASN C:67 , THR C:69 , ALA C:72 , HOH C:134 , HOH C:137BINDING SITE FOR RESIDUE NH4 C 126

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2A18)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2A18)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2A18)

(-) PROSITE Motifs  (1, 3)

Asymmetric Unit (1, 3)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1BACT_MICROCOMPPS01139 Bacterial microcompartiments proteins signature.CCMK4_SYNY323-42
 
 		  3A:23-42
B:23-42
C:23-42
Biological Unit 1 (1, 6)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1BACT_MICROCOMPPS01139 Bacterial microcompartiments proteins signature.CCMK4_SYNY323-42
 
 		  6A:23-42
B:23-42
C:23-42

(-) Exons   (0, 0)

(no "Exon" information available for 2A18)

(-) 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:104
 aligned with CCMK4_SYNY3 | P73407 from UniProtKB/Swiss-Prot  Length:112

    Alignment length:104
                                    13        23        33        43        53        63        73        83        93       103    
          CCMK4_SYNY3     4 QSAVGSIETIGFPGILAAADAMVKAGRITIVGYIRAGSARFTLNIRGDVQEVKTAMAAGIDAINRTEGADVKTWVIIPRPHENVVAVLPIDFSPEVEPFREAAE 107
               SCOP domains d2a18a_ A: Carboxysome shell protein CcmK4                                                               SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeeeeehhhhhhhhhhhhhhhh.eeeeeeeeee..eeeeeeeehhhhhhhhhhhhhhhhhhh....eeeeeee...hhhhhhhh....hhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------BACT_MICROCOMP      ----------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------- Transcript
                 2a18 A   4 QSAVGSIETIGFPGILAAADAMVKAGRITIVGYIRAGSARFTLNIRGDVQEVKTAMAAGIDAINRTEGADVKTWVIIPRPHENVVAVLPIDFSPEVEPFREAAE 107
                                    13        23        33        43        53        63        73        83        93       103    


Chain B from PDB  Type:PROTEIN  Length:104
 aligned with CCMK4_SYNY3 | P73407 from UniProtKB/Swiss-Prot  Length:112

    Alignment length:104
                                    13        23        33        43        53        63        73        83        93       103    
          CCMK4_SYNY3     4 QSAVGSIETIGFPGILAAADAMVKAGRITIVGYIRAGSARFTLNIRGDVQEVKTAMAAGIDAINRTEGADVKTWVIIPRPHENVVAVLPIDFSPEVEPFREAAE 107
               SCOP domains d2a18b_ B: Carboxysome shell protein CcmK4                                                               SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeeeeehhhhhhhhhhhhhhhh..eeeeeeeee..eeeeeeeehhhhhhhhhhhhhhhhhhh....eeeeeee...hhhhhhhh....hhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------BACT_MICROCOMP      ----------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------- Transcript
                 2a18 B   4 QSAVGSIETIGFPGILAAADAMVKAGRITIVGYIRAGSARFTLNIRGDVQEVKTAMAAGIDAINRTEGADVKTWVIIPRPHENVVAVLPIDFSPEVEPFREAAE 107
                                    13        23        33        43        53        63        73        83        93       103    


Chain C from PDB  Type:PROTEIN  Length:104
 aligned with CCMK4_SYNY3 | P73407 from UniProtKB/Swiss-Prot  Length:112

    Alignment length:104
                                    13        23        33        43        53        63        73        83        93       103    
          CCMK4_SYNY3     4 QSAVGSIETIGFPGILAAADAMVKAGRITIVGYIRAGSARFTLNIRGDVQEVKTAMAAGIDAINRTEGADVKTWVIIPRPHENVVAVLPIDFSPEVEPFREAAE 107
               SCOP domains d2a18c_ C: Carboxysome shell protein CcmK4                                                               SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeeeeeeehhhhhhhhhhhhhhhh.eeeeeeeeee..eeeeeeeehhhhhhhhhhhhhhhhhhh....eeeeeee...hhhhhhhh....hhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------BACT_MICROCOMP      ----------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------- Transcript
                 2a18 C   4 QSAVGSIETIGFPGILAAADAMVKAGRITIVGYIRAGSARFTLNIRGDVQEVKTAMAAGIDAINRTEGADVKTWVIIPRPHENVVAVLPIDFSPEVEPFREAAE 107
                                    13        23        33        43        53        63        73        83        93       103
   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, 3)

Asymmetric Unit
(-)
Class: Alpha and beta proteins (a+b) (23004)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2A18)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2A18)

(-) Gene Ontology  (0, 0)

Asymmetric Unit(hide GO term definitions)
    (no "Gene Ontology" information available for 2A18)

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  2a18
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 Related Entries

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

UniProtKB/Swiss-Prot
        CCMK4_SYNY3 | P73407: 2a10 3gv2

(-) Related Entries Specified in the PDB File

2a10 THE SAME PROTEIN IN A DIFFERENT CRYSTAL PACKING
2a1b CCMK2, AN ORTHOLOG AND ALSO A COMPONENT OF THE CARBOXYSOME SHELL