1XRD - JenaLib

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

Authors :   Z. -Y. Wang, K. Gokan, M. Kobayashi, T. Nozawa

Date :   14 Oct 04 (Deposition) - 15 Mar 05 (Release) - 24 Feb 09 (Revision)

Method :   SOLUTION NMR

Resolution :   NOT APPLICABLE

Chains :   NMR Structure  : A  (10x)

Keywords :   Membrane Spanning Helix, Light-Harvesting, Pigment Binding, Photosynthesis, Membrane Protein (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

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (0, 0)

Sites (0, 0)

SS Bonds (0, 0)

Cis Peptide Bonds (0, 0)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (1, 1)

Exons (0, 0)

Sequences/Alignments

NMR Structure

Reformat:	Number of residues per line = ('0' or empty: single-line sequence representation)
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	UniProt sequence: complete aligned part

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Chain A from PDB  Type:PROTEIN  Length:52
 aligned with LHA_RHORU | P02947 from UniProtKB/Swiss-Prot  Length:62

    Alignment length:52
                                    10        20        30        40        50  
             LHA_RHORU    1 MWRIWQLFDPRQALVGLATFLFVLALLIHFILLSTERFNWLEGASTKPVQTS 52
               SCOP domains d1xrda1 A:1-52 Light-harvesting complex subunits     SCOP domains
               CATH domains 1xrdA01 A:1-43 Light-harvesting complex    --------- CATH domains
               Pfam domains LHC-1xrdA01 A:1-42                        ---------- Pfam domains
         Sec.struct. author hhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh......... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------ANTENNA_COMP_ALPHA ----------- PROSITE
                 Transcript ---------------------------------------------------- Transcript
                  1xrd A  1 MWRIWQLFDPRQALVGLATFLFVLALLIHFILLSTERFNWLEGASTKPVQTS 52
                                    10        20        30        40        50

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Classification and Annotation

SCOP Domains (1, 1)

CATH Domains (1, 1)

Pfam Domains (1, 1)

Gene Ontology (12, 12)

NMR Structure(hide GO term definitions)

Chain A (LHA_RHORU | P02947)

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:0019866	organelle inner membrane	The inner, i.e. lumen-facing, lipid bilayer of an organelle envelope; usually highly selective to most ions and metabolites.
	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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