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(-) Description

Title :  LIGHT-HARVESTING COMPLEX 1 BETA SUBUNIT FROM WILD-TYPE RHODOSPIRILLUM RUBRUM
 
Authors :  Z. -Y. Wang, K. Gokan, M. Kobayashi, T. Nozawa
Date :  15 Oct 04  (Deposition) - 15 Mar 05  (Release) - 24 Feb 09  (Revision)
Method :  SOLUTION NMR
Resolution :  NOT APPLICABLE
Chains :  NMR Structure  :  A  (10x)
Keywords :  Membrane Protein, Light-Harvesting, Pigment Binding, Photosynthesis (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  Z. -Y. Wang, K. Gokan, M. Kobayashi, T. Nozawa
Solution Structures Of The Core Light-Harvesting Alpha And Beta Polypeptides From Rhodospirillum Rubrum: Implications For The Pigment-Protein And Protein-Protein Interactions
J. Mol. Biol. V. 347 465 2005
PubMed-ID: 15740753  |  Reference-DOI: 10.1016/J.JMB.2005.01.017
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - LIGHT-HARVESTING PROTEIN B-880, BETA CHAIN
    Chains: A
    Organism Scientific: RHODOSPIRILLUM RUBRUM
    Organism Taxid: 1085
    Synonym: LH-1;
ANTENNA PIGMENT PROTEIN, BETA CHAIN

 Structural Features

(-) Chains, Units

  
NMR Structure (10x): 

Summary Information (see also Sequences/Alignments below)

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

(no "Ligand,Modified Residues,Ions" information available for 1WRG)

(-) Sites  (0, 0)

(no "Site" information available for 1WRG)

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

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

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 1)

NMR Structure (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ANTENNA_COMP_BETAPS00969 Antenna complexes beta subunits signature.LHB_RHORU14-45  1A:15-46
LHB_RHORT16-47  1A:15-46

(-) Exons   (0, 0)

(no "Exon" information available for 1WRG)

(-) Sequences/Alignments

NMR Structure
   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:55
 aligned with LHB_RHORT | Q2RQ23 from UniProtKB/Swiss-Prot  Length:69

    Alignment length:55
                                    11        21        31        41        51     
             LHB_RHORT    2 AEVKQESLSGITEGEAKEFHKIFTSSILVFFGVAAFAHLLVWIWRPWVPGPNGYS 56
               SCOP domains d1wrga_ A: automated matches                            SCOP domains
               CATH domains -----1wrgA01 A:6-42                       ------------- CATH domains
               Pfam domains ------------LHC-1wrgA01 A:13-49                  ------ Pfam domains
         Sec.struct. author .......hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh............. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------- SAPs(SNPs)
                PROSITE (2) --------------ANTENNA_COMP_BETA  PDB: A:15-46 --------- PROSITE (2)
                 Transcript ------------------------------------------------------- Transcript
                  1wrg A  1 AEVKQESLSGITEGEAKEFHKIFTSSILVFFGVAAFAHLLVWIWRPWVPGPNGYS 55
                                    10        20        30        40        50     


Chain A from PDB  Type:PROTEIN  Length:55
 aligned with LHB_RHORU | P0C190 from UniProtKB/Swiss-Prot  Length:54

    Alignment length:55
                             1                                                     
                             |       9        19        29        39        49     
             LHB_RHORU    - -EVKQESLSGITEGEAKEFHKIFTSSILVFFGVAAFAHLLVWIWRPWVPGPNGYS 54
               SCOP domains d1wrga_ A: automated matches                            SCOP domains
               CATH domains -----1wrgA01 A:6-42                       ------------- CATH domains
               Pfam domains ------------LHC-1wrgA01 A:13-49                  ------ Pfam domains
         Sec.struct. author .......hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh............. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------ANTENNA_COMP_BETA  PDB: A:15-46 --------- PROSITE
                 Transcript ------------------------------------------------------- Transcript
                  1wrg A  1 AEVKQESLSGITEGEAKEFHKIFTSSILVFFGVAAFAHLLVWIWRPWVPGPNGYS 55
                                    10        20        30        40        50
   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, 1)

NMR Structure
(-)
Class: Membrane and cell surface proteins and peptides (2046)

(-) CATH Domains  (1, 1)

NMR Structure
(-)
Class: Mainly Alpha (13335)

(-) Pfam Domains  (1, 1)

NMR Structure
(-)
Clan: no clan defined [family: LHC] (5)

(-) Gene Ontology  (11, 22)

NMR Structure(hide GO term definitions)
Chain A   (LHB_RHORU | P0C190)
molecular function
    GO:0042314    bacteriochlorophyll binding    Interacting selectively and non-covalently with bacteriochlorophyll, a form of chlorophyll found in photosynthetic bacteria, such as the purple and green bacteria. There are several types, designated a to g. Bacteriochlorophyll a and bacteriochlorophyll b are structurally similar to the chlorophyll a and chlorophyll b found in plants.
    GO:0016168    chlorophyll binding    Interacting selectively and non-covalently with chlorophyll; any compound of magnesium complexed in a porphyrin (tetrapyrrole) ring and which functions as a photosynthetic pigment.
    GO:0045156    electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity    Enables the directed movement of electrons within the cyclic electron transport pathway of photosynthesis.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
biological process
    GO:0019684    photosynthesis, light reaction    The light reactions of photosynthesis, which take place in photosystems II and I. Light energy is harvested and used to power the transfer of electrons among a series of electron donors and acceptors. The final electron acceptor is NADP+, which is reduced to NADPH. NADPH generated from light reactions is used in sugar synthesis in dark reactions. Light reactions also generate a proton motive force across the thylakoid membrane, and the proton gradient is used to synthesize ATP. There are two chemical reactions involved in the light reactions: water oxidation in photosystem II, and NADP reduction in photosystem I.
    GO:0018298    protein-chromophore linkage    The covalent or noncovalent attachment of a chromophore to a protein.
cellular component
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0030076    light-harvesting complex    A protein-pigment complex that may be closely or peripherally associated to photosynthetic reaction centers that participate in harvesting and transferring radiant energy to the reaction center.
    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.
    GO:0030077    plasma membrane light-harvesting complex    A plasma membrane protein-pigment complex that may be closely or peripherally associated to photosynthetic reaction centers that participate in harvesting and transferring radiant energy to the reaction center. Examples of this complex are found in bacterial species.

Chain A   (LHB_RHORT | Q2RQ23)
molecular function
    GO:0042314    bacteriochlorophyll binding    Interacting selectively and non-covalently with bacteriochlorophyll, a form of chlorophyll found in photosynthetic bacteria, such as the purple and green bacteria. There are several types, designated a to g. Bacteriochlorophyll a and bacteriochlorophyll b are structurally similar to the chlorophyll a and chlorophyll b found in plants.
    GO:0016168    chlorophyll binding    Interacting selectively and non-covalently with chlorophyll; any compound of magnesium complexed in a porphyrin (tetrapyrrole) ring and which functions as a photosynthetic pigment.
    GO:0045156    electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity    Enables the directed movement of electrons within the cyclic electron transport pathway of photosynthesis.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
biological process
    GO:0019684    photosynthesis, light reaction    The light reactions of photosynthesis, which take place in photosystems II and I. Light energy is harvested and used to power the transfer of electrons among a series of electron donors and acceptors. The final electron acceptor is NADP+, which is reduced to NADPH. NADPH generated from light reactions is used in sugar synthesis in dark reactions. Light reactions also generate a proton motive force across the thylakoid membrane, and the proton gradient is used to synthesize ATP. There are two chemical reactions involved in the light reactions: water oxidation in photosystem II, and NADP reduction in photosystem I.
    GO:0018298    protein-chromophore linkage    The covalent or noncovalent attachment of a chromophore to a protein.
cellular component
    GO:0016021    integral component of membrane    The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane.
    GO:0030076    light-harvesting complex    A protein-pigment complex that may be closely or peripherally associated to photosynthetic reaction centers that participate in harvesting and transferring radiant energy to the reaction center.
    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.
    GO:0030077    plasma membrane light-harvesting complex    A plasma membrane protein-pigment complex that may be closely or peripherally associated to photosynthetic reaction centers that participate in harvesting and transferring radiant energy to the reaction center. Examples of this complex are found in bacterial species.

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 Related Entries

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

UniProtKB/Swiss-Prot
        LHB_RHORT | Q2RQ23: 1nw0
        LHB_RHORU | P0C190: 1nw0

(-) Related Entries Specified in the PDB File

1xrd LIGHT-HARVESTING COMPLEX 1 ALFA SUBUNIT FROM WILD-TYPE RHODOSPIRILLUM RUBRUM