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(-) Description

Title :  CRYSTAL STRUCTURE OF BICARBONATE TRANSPORT PROTEIN CMPA FROM SYNECHOCYSTIS SP. PCC 6803 IN COMPLEX WITH BICARBONATE AND CALCIUM
 
Authors :  N. M. Koropatkin, T. J. Smith, H. B. Pakrasi
Date :  21 Aug 06  (Deposition) - 19 Dec 06  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.35
Chains :  Asym./Biol. Unit :  A
Keywords :  Alpha-Beta Protein, C-Clamp, Periplasmic Solute-Binding Protein, Abc Transporter, Bicarbonate, Transport Protein (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  N. M. Koropatkin, D. W. Koppenaal, H. B. Pakrasi, T. J. Smith
The Structure Of A Cyanobacterial Bicarbonate Transport Protein, Cmpa.
J. Biol. Chem. V. 282 2606 2007
PubMed-ID: 17121816  |  Reference-DOI: 10.1074/JBC.M610222200

(-) Compounds

Molecule 1 - BICARBONATE TRANSPORTER
    Chains: A
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET-28RTEV
    Expression System Strain: ROSETTA(DE3)PLYSS
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Fragment: SOLUTE-BINDING DOMAIN
    Gene: CMPA
    Organism Scientific: SYNECHOCYSTIS SP.
    Organism Taxid: 1148
    Strain: PCC 6803

 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
1BCT1Ligand/IonBICARBONATE ION
2CA1Ligand/IonCALCIUM ION

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREILE A:68 , GLU A:70 , TRP A:99 , GLN A:121 , ASN A:152 , THR A:192 , GLN A:198 , GLU A:271 , CA A:454 , HOH A:720 , HOH A:890BINDING SITE FOR RESIDUE BCT A 453
2AC2SOFTWAREGLU A:70 , ASN A:152 , GLN A:198 , GLU A:270 , GLU A:271 , BCT A:453BINDING SITE FOR RESIDUE CA A 454

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2I4B)

(-) Cis Peptide Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1Met A:122 -Pro A:123
2Asp A:243 -Pro A:244

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2I4B)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2I4B)

(-) Exons   (0, 0)

(no "Exon" information available for 2I4B)

(-) 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:401
 aligned with CMPA_SYNY3 | Q55460 from UniProtKB/Swiss-Prot  Length:452

    Alignment length:401
                                    61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451 
           CMPA_SYNY3    52 PEMMPETANIKLGYIPIVEAAPLIIAQEKGFFAKYGMTGVEVSKQANWASARDNVTIGSQGGGIDGGQWQMPMPHLITEGIITNGNKVPMYVLAQLITQGNGIAVAPMHEGKGVNLDITKAADYIKGFNKTNGRKFKAAHTFPNVNQDFWIRYWFAAGGVDPDTDIDLLAVPPAETVQGMRNGTMDAFSTGDPWPYRIVTENIGYMAGLTAQIWPYHPEEYLAIRADWVDKNPKATKALLKGIMEAQQWIDDPKNRPEVVQIVSGRNYFNVPTTILESPFKGQYTMGDGQPAIDDFQKGPLYWKDGIGNVSYPYKSHDLWFLTESIRWGFHKNAIPDLDTAQKIIDKVNREDLWREAATEAGFTADIPSSTSRGVETFFDGITFDPANPSAYLQSLAIKKV 452
               SCOP domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ........eeeeee..hhhhhhhhhhhhhhhhhhh...eeeeee..hhhhhhhhhhhhhhhh...eeee..hhhhhhhh..........eeeeee.....eeeee.hhhh.......hhhhhhhhhhhhhhhh...eeee....hhhhhhhhhhhhhh........eeee.hhhhhhhhhhh....eeeee.hhhhhhhhh...eeeeehhhhh......eeeeehhhhhhhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhh.......hhhhhhhhh.ee........ee.hhhh..............hhhhhhhhhhhhhhh........hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh........ee.....ee...hhhhhhhhh..... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2i4b A  52 PEMMPETANIKLGYIPIVEAAPLIIAQEKGFFAKYGMTGVEVSKQANWASARDNVTIGSQGGGIDGGQWQMPMPHLITEGIITNGNKVPMYVLAQLITQGNGIAVAPMHEGKGVNLDITKAADYIKGFNKTNGRKFKAAHTFPNVNQDFWIRYWFAAGGVDPDTDIDLLAVPPAETVQGMRNGTMDAFSTGDPWPYRIVTENIGYMAGLTAQIWPYHPEEYLAIRADWVDKNPKATKALLKGIMEAQQWIDDPKNRPEVVQIVSGRNYFNVPTTILESPFKGQYTMGDGQPAIDDFQKGPLYWKDGIGNVSYPYKSHDLWFLTESIRWGFHKNAIPDLDTAQKIIDKVNREDLWREAATEAGFTADIPSSTSRGVETFFDGITFDPANPSAYLQSLAIKKV 452
                                    61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451
   Legend:   → Mismatch (orange background)
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  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (0, 0)

(no "SCOP Domain" information available for 2I4B)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2I4B)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2I4B)

(-) Gene Ontology  (5, 5)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (CMPA_SYNY3 | Q55460)
molecular function
    GO:0005215    transporter activity    Enables the directed movement of substances (such as macromolecules, small molecules, ions) into, out of or within a cell, or between cells.
biological process
    GO:0006811    ion transport    The directed movement of charged atoms or small charged molecules into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
    GO:0006810    transport    The directed movement of substances (such as macromolecules, small molecules, ions) or cellular components (such as complexes and organelles) into, out of or within a cell, or between cells, or within a multicellular organism by means of some agent such as a transporter, pore or motor protein.
cellular component
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

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 Related Entries

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

UniProtKB/Swiss-Prot
        CMPA_SYNY3 | Q55460: 2i48 2i49 2i4c

(-) Related Entries Specified in the PDB File

2i48 2I48 IS THE CRYSTAL STRUCTURE OF BICARBONATE TRANSPORT PROTEIN CMPA FROM SYNECHOCYSTIS SP. PCC 6803 IN COMPLEX WITH CARBONIC ACID, DETERMINED AT 1.60 ANGSTROM RESOLUTION
2i49 2I49 IS THE CRYSTAL STRUCTURE OF APO FORM OF BICARBONATE TRANSPORT PROTEIN CMPA FROM SYNECHOCYSTIS SP. PCC 6803, DETERMINED AT 1.35 ANGSTROM RESOLUTION
2i4c 2I4C IS THE CRYSTAL STRUCTURE OF BICARBONATE TRANSPORT PROTEIN CMPA FROM SYNECHOCYSTIS SP. PCC 6803 IN COMPLEX WITH BICARBONATE AND CALCIUM (BOTH LIGANDS NOT ADDED EXOGENOUSLY IN CRYSTALLIZATION), DETERMINED AT 1.70 ANGSTROM RESOLUTION