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Q9SQL2

- CB24_PEA

UniProt

Q9SQL2 - CB24_PEA

Protein

Chlorophyll a-b binding protein P4, chloroplastic

Gene

lhcA-P4

Organism
Pisum sativum (Garden pea)
Status
Reviewed - Annotation score: 4 out of 5- Experimental evidence at protein leveli
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    • History
      Entry version 63 (01 Oct 2014)
      Sequence version 1 (01 May 2000)
      Previous versions | rss
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    Functioni

    The light-harvesting complex (LHC) functions as a light receptor, it captures and delivers excitation energy to photosystems with which it is closely associated.1 PublicationCurated
    May channel protons produced in the catalytic Mn center of water oxidation into the thylakoid lumen.1 Publication

    Cofactori

    Binds at least 14 chlorophylls (8 Chl-a and 6 Chl-b) and carotenoids such as lutein and neoxanthin.By similarity

    Sites

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Metal bindingi56 – 561Magnesium (chlorophyll-b 1 axial ligand); via carbonyl oxygenBy similarity
    Binding sitei76 – 761Chlorophyll-a 1; via amide nitrogenBy similarity
    Metal bindingi95 – 951Magnesium (chlorophyll-a 1 axial ligand)By similarity
    Binding sitei100 – 1001Chlorophyll-b 2By similarity
    Binding sitei137 – 1371Chlorophyll-b 3By similarity
    Metal bindingi143 – 1431Magnesium (chlorophyll-b 2 axial ligand); via carbonyl oxygenBy similarity
    Metal bindingi153 – 1531Magnesium (chlorophyll-b 3 axial ligand)By similarity
    Binding sitei156 – 1561Chlorophyll-b 4By similarity
    Binding sitei203 – 2031Chlorophyll-a 5By similarity
    Metal bindingi204 – 2041Magnesium (chlorophyll-a 3 axial ligand)By similarity
    Metal bindingi207 – 2071Magnesium (chlorophyll-a 4 axial ligand)By similarity
    Binding sitei209 – 2091Chlorophyll-a 1By similarity
    Metal bindingi221 – 2211Magnesium (chlorophyll-a 5 axial ligand)By similarity
    Metal bindingi236 – 2361Magnesium (chlorophyll-a 6 axial ligand)By similarity

    GO - Molecular functioni

    1. chlorophyll binding Source: UniProtKB-KW
    2. metal ion binding Source: UniProtKB-KW

    GO - Biological processi

    1. photosynthesis, light harvesting Source: InterPro
    2. protein-chromophore linkage Source: UniProtKB-KW

    Keywords - Biological processi

    Photosynthesis

    Keywords - Ligandi

    Chlorophyll, Chromophore, Magnesium, Metal-binding

    Names & Taxonomyi

    Protein namesi
    Recommended name:
    Chlorophyll a-b binding protein P4, chloroplastic
    Alternative name(s):
    LHCI type III CAB-P4
    Gene namesi
    Name:lhcA-P4Imported
    OrganismiPisum sativum (Garden pea)
    Taxonomic identifieri3888 [NCBI]
    Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsfabidsFabalesFabaceaePapilionoideaeFabeaePisum

    Subcellular locationi

    GO - Cellular componenti

    1. chloroplast thylakoid membrane Source: UniProtKB-SubCell
    2. integral component of membrane Source: UniProtKB-KW
    3. photosystem I Source: UniProtKB-KW
    4. photosystem II Source: UniProtKB-KW

    Keywords - Cellular componenti

    Chloroplast, Membrane, Photosystem I, Photosystem II, Plastid, Thylakoid

    PTM / Processingi

    Molecule processing

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Chaini? – 252Chlorophyll a-b binding protein P4, chloroplasticPRO_0000310860
    Transit peptidei1 – ?ChloroplastCurated

    Post-translational modificationi

    Photoregulated by reversible phosphorylation of its threonine residues.By similarity

    Keywords - PTMi

    Phosphoprotein

    Proteomic databases

    PRIDEiQ9SQL2.
    ProMEXiQ9SQL2.

    Expressioni

    Inductioni

    Down-regulated by UV-B.1 Publication

    Interactioni

    Subunit structurei

    The LHC complex consists of chlorophyll a-b binding proteins.Curated

    Protein-protein interaction databases

    DIPiDIP-60296N.

    Structurei

    Secondary structure

    1
    252
    Legend: HelixTurnBeta strand
    Show more details
    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Turni88 – 914
    Helixi92 – 987
    Helixi100 – 1067
    Beta strandi113 – 1153
    Beta strandi131 – 1333
    Turni141 – 1444
    Helixi145 – 1506
    Turni151 – 1533
    Helixi154 – 1607
    Beta strandi170 – 1723
    Beta strandi174 – 1774
    Helixi180 – 1834
    Beta strandi188 – 1903
    Beta strandi196 – 1994
    Helixi203 – 2097
    Turni212 – 2143
    Helixi215 – 2228
    Beta strandi223 – 2253
    Turni233 – 2386

    3D structure databases

    Select the link destinations:
    PDBe
    RCSB PDB
    PDBj
    Links Updated
    EntryMethodResolution (Å)ChainPositionsPDBsum
    1YO9model-41-252[»]
    2O01X-ray3.40485-249[»]
    2WSCX-ray3.3041-252[»]
    2WSEX-ray3.4941-252[»]
    2WSFX-ray3.4841-252[»]
    3LW5X-ray3.30481-247[»]
    ProteinModelPortaliQ9SQL2.
    SMRiQ9SQL2. Positions 85-249.
    ModBaseiSearch...
    MobiDBiSearch...

    Miscellaneous databases

    EvolutionaryTraceiQ9SQL2.

    Transmembrane

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Transmembranei101 – 12121HelicalSequence AnalysisAdd
    BLAST
    Transmembranei134 – 15421HelicalSequence AnalysisAdd
    BLAST

    Family & Domainsi

    Domaini

    The N-terminus of the protein extends into the stroma where it is involved with adhesion of granal membranes and post-translational modifications; both are believed to mediate the distribution of excitation energy between photosystems I and II.Curated

    Sequence similaritiesi

    Keywords - Domaini

    Transit peptide, Transmembrane, Transmembrane helix

    Family and domain databases

    Gene3Di1.10.3460.10. 1 hit.
    InterProiIPR001344. Chloro_AB-bd_pln.
    IPR022796. Chloroa_b-bind.
    IPR023329. Chlorophyll_a/b-bd_dom.
    [Graphical view]
    PANTHERiPTHR21649. PTHR21649. 1 hit.
    PfamiPF00504. Chloroa_b-bind. 1 hit.
    [Graphical view]
    SUPFAMiSSF103511. SSF103511. 1 hit.

    Sequencei

    Sequence statusi: Complete.

    Sequence processingi: The displayed sequence is further processed into a mature form.

    Q9SQL2-1 [UniParc]FASTAAdd to Basket

    « Hide

    MATVTTQASA AIFGPCGLKS RFLGGSSGKL NRGVAFRPVG CSPSASFKVE    50
    AKKGEWLPGL ASPGYLTGSL PGDNGFDPLG LAEDPENLRW FVQAELVNGR 100
    WAMLGVAGML LPEVFTSIGI INVPKWYAAG KEEYFASSST LFVIEFILSH 150
    YVEIRRWQDI KNPGSVNQDP IFKQYSLPAG EVGYPGGIFN PLNFAPTLEA 200
    KEKEIANGRL AMLAFLGFII QHNVTGKGPF DNLLQHISDP WHNTIVQTLG 250
    GN 252
    Length:252
    Mass (Da):27,229
    Last modified:May 1, 2000 - v1
    Checksum:i00B7D26C82F6667A
    GO

    Experimental Info

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Sequence conflicti128 – 1281A → D in ABN49455. 1 PublicationCurated
    Sequence conflicti149 – 1491S → F in ABN49455. 1 PublicationCurated

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    AF002248 mRNA. Translation: AAF13731.1.
    EF208907 mRNA. Translation: ABN49455.1.
    PIRiT51616.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    AF002248 mRNA. Translation: AAF13731.1 .
    EF208907 mRNA. Translation: ABN49455.1 .
    PIRi T51616.

    3D structure databases

    Select the link destinations:
    PDBe
    RCSB PDB
    PDBj
    Links Updated
    Entry Method Resolution (Å) Chain Positions PDBsum
    1YO9 model - 4 1-252 [» ]
    2O01 X-ray 3.40 4 85-249 [» ]
    2WSC X-ray 3.30 4 1-252 [» ]
    2WSE X-ray 3.49 4 1-252 [» ]
    2WSF X-ray 3.48 4 1-252 [» ]
    3LW5 X-ray 3.30 4 81-247 [» ]
    ProteinModelPortali Q9SQL2.
    SMRi Q9SQL2. Positions 85-249.
    ModBasei Search...
    MobiDBi Search...

    Protein-protein interaction databases

    DIPi DIP-60296N.

    Proteomic databases

    PRIDEi Q9SQL2.
    ProMEXi Q9SQL2.

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Miscellaneous databases

    EvolutionaryTracei Q9SQL2.

    Family and domain databases

    Gene3Di 1.10.3460.10. 1 hit.
    InterProi IPR001344. Chloro_AB-bd_pln.
    IPR022796. Chloroa_b-bind.
    IPR023329. Chlorophyll_a/b-bd_dom.
    [Graphical view ]
    PANTHERi PTHR21649. PTHR21649. 1 hit.
    Pfami PF00504. Chloroa_b-bind. 1 hit.
    [Graphical view ]
    SUPFAMi SSF103511. SSF103511. 1 hit.
    ProtoNeti Search...

    Publicationsi

    1. "Molecular markers for UV-B stress in plants: alteration of the expression of four classes of genes in Pisum sativum and the formation of high molecular mass RNA adducts."
      Brosche M., Fant C., Bergkvist S.W., Strid H., Svensk A., Olsson O., Strid A.
      Biochim. Biophys. Acta 1447:185-198(1999) [PubMed] [Europe PMC] [Abstract]
      Cited for: NUCLEOTIDE SEQUENCE [MRNA], INDUCTION.
      Strain: cv. Greenfeast1 Publication.
      Tissue: LeafImported.
    2. "Interacting partner of calcineurin B-like interacting protein kinase (CIPK) (partial homolog of photosystem I light harvesting chlorophyll a/b binding protein) from Pisum sativum."
      Gupta S., Tuteja N.
      Submitted (JAN-2007) to the EMBL/GenBank/DDBJ databases
      Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 109-252.
    3. "Dicyclohexylcarbodiimide-binding proteins related to the short circuit of the proton-pumping activity of photosystem II. Identified as light-harvesting chlorophyll-a/b-binding proteins."
      Jahns P., Junge W.
      Eur. J. Biochem. 193:731-736(1990) [PubMed] [Europe PMC] [Abstract]
      Cited for: PROTEIN SEQUENCE OF 110-124, FUNCTION.
      Tissue: Seedling1 Publication.

    Entry informationi

    Entry nameiCB24_PEA
    AccessioniPrimary (citable) accession number: Q9SQL2
    Secondary accession number(s): A3F6K3, P35386
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: November 13, 2007
    Last sequence update: May 1, 2000
    Last modified: October 1, 2014
    This is version 63 of the entry and version 1 of the sequence. [Complete history]
    Entry statusiReviewed (UniProtKB/Swiss-Prot)
    Annotation programPlant Protein Annotation Program

    Miscellaneousi

    Keywords - Technical termi

    3D-structure, Direct protein sequencing

    Documents

    1. PDB cross-references
      Index of Protein Data Bank (PDB) cross-references
    2. SIMILARITY comments
      Index of protein domains and families

    External Data

    Dasty 3