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P92919

- CB23_APIGR

UniProt

P92919 - CB23_APIGR

Protein

Chlorophyll a-b binding protein, chloroplastic

Gene

LHC0

Organism
Apium graveolens (Celery)
Status
Reviewed - Annotation score: 4 out of 5- Experimental evidence at protein leveli
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    • History
      Entry version 76 (01 Oct 2014)
      Sequence version 1 (01 May 1997)
      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.

    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 sitei78 – 781Chlorophyll-a 1; via amide nitrogenBy similarity
    Binding sitei84 – 841Chlorophyll-a 1By similarity
    Metal bindingi97 – 971Magnesium (chlorophyll-a 1 axial ligand)By similarity
    Metal bindingi100 – 1001Magnesium (chlorophyll-a 2 axial ligand)By similarity
    Binding sitei102 – 1021Chlorophyll-b 2By similarity
    Binding sitei135 – 1351Chlorophyll-a 3By similarity
    Binding sitei145 – 1451Chlorophyll-a 3; via amide nitrogenBy similarity
    Metal bindingi151 – 1511Magnesium (chlorophyll-b 2 axial ligand); via carbonyl oxygenBy similarity
    Binding sitei155 – 1551Chlorophyll-b 3By similarity
    Binding sitei163 – 1631Chlorophyll-b 4 or chlorophyll-b 5By similarity
    Metal bindingi171 – 1711Magnesium (chlorophyll-b 3 axial ligand)By similarity
    Binding sitei174 – 1741Chlorophyll-b 4By similarity
    Binding sitei180 – 1801Chlorophyll-b 2; via amide nitrogenBy similarity
    Binding sitei211 – 2111Chlorophyll-a 5By similarity
    Metal bindingi212 – 2121Magnesium (chlorophyll-a 3 axial ligand)By similarity
    Metal bindingi215 – 2151Magnesium (chlorophyll-a 4 axial ligand)By similarity
    Binding sitei217 – 2171Chlorophyll-a 1By similarity
    Metal bindingi229 – 2291Magnesium (chlorophyll-a 5 axial ligand)By similarity
    Metal bindingi244 – 2441Magnesium (chlorophyll-a 6 axial ligand)By similarity
    Binding sitei253 – 2531Chlorophyll-a 6; via amide nitrogenBy similarity
    Binding sitei260 – 2601Chlorophyll-b 5; via carbonyl oxygenBy 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, chloroplastic
    Alternative name(s):
    Allergen: Api g 3
    Gene namesi
    Name:LHC0
    OrganismiApium graveolens (Celery)
    Taxonomic identifieri4045 [NCBI]
    Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaeasteridscampanulidsApialesApiaceaeApioideaeapioid supercladeApieaeApium

    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

    Pathology & Biotechi

    Allergenic propertiesi

    Causes an allergic reaction in human.

    Keywords - Diseasei

    Allergen

    Protein family/group databases

    Allergomei3086. Api g 3.0101.
    774. Api g 3.

    PTM / Processingi

    Molecule processing

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Transit peptidei1 – 3535ChloroplastSequence AnalysisAdd
    BLAST
    Chaini36 – 264229Chlorophyll a-b binding protein, chloroplasticPRO_0000003646Add
    BLAST

    Amino acid modifications

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Modified residuei36 – 361N2-acetylarginineBy similarity
    Modified residuei38 – 381PhosphothreonineBy similarity

    Post-translational modificationi

    Photoregulated by reversible phosphorylation of its threonine residues.By similarity

    Keywords - PTMi

    Acetylation, Phosphoprotein

    Proteomic databases

    PRIDEiP92919.

    Interactioni

    Subunit structurei

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

    Structurei

    3D structure databases

    ProteinModelPortaliP92919.
    SMRiP92919. Positions 46-264.
    ModBaseiSearch...
    MobiDBiSearch...

    Transmembrane

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Transmembranei98 – 11821HelicalSequence AnalysisAdd
    BLAST
    Transmembranei150 – 17021HelicalSequence AnalysisAdd
    BLAST
    Transmembranei218 – 23821HelicalSequence 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.

    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.

    P92919-1 [UniParc]FASTAAdd to Basket

    « Hide

    MAASTMALSS PALAGKAVKV APSSSELFGN GRVSMRKTVK APVSDSPWYG    50
    PDRVKYLGPF SGEAPSYLTG EFPGDYGWDT AGLSADPETF AKNRELEVIH 100
    SRWAMLGALG CVFPELLARN GVKFGEAVWF KAGSQIFSEG GLDYLGNPSL 150
    VHAQSILSIW ATQVILMGAV EGYRVAGGPL GEIVDPLYPG GSFDPLGLAE 200
    DPERSAELKV KELKNGRLAM FSMFGFFVQA IVTGKGPLEN LADHLADPVN 250
    NNAWAFATNF VPGK 264
    Length:264
    Mass (Da):28,076
    Last modified:May 1, 1997 - v1
    Checksum:i07126C7D5D86BA66
    GO

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    Z75663 mRNA. Translation: CAA99993.1.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    Z75663 mRNA. Translation: CAA99993.1 .

    3D structure databases

    ProteinModelPortali P92919.
    SMRi P92919. Positions 46-264.
    ModBasei Search...
    MobiDBi Search...

    Protein family/group databases

    Allergomei 3086. Api g 3.0101.
    774. Api g 3.

    Proteomic databases

    PRIDEi P92919.

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    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. "Characterization of a chlorophyll ab binding protein from celery as a food allergen Api g 3."
      Hoffmann-Sommergruber K., Pec M., Ferris R., O'Riordain G., Ebner C., Scheiner O., Breiteneder H.
      Submitted (JUL-1996) to the EMBL/GenBank/DDBJ databases
      Cited for: NUCLEOTIDE SEQUENCE [MRNA].
      Tissue: Bulb.

    Entry informationi

    Entry nameiCB23_APIGR
    AccessioniPrimary (citable) accession number: P92919
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: June 20, 2001
    Last sequence update: May 1, 1997
    Last modified: October 1, 2014
    This is version 76 of the entry and version 1 of the sequence. [Complete history]
    Entry statusiReviewed (UniProtKB/Swiss-Prot)
    Annotation programPlant Protein Annotation Program

    Miscellaneousi

    Documents

    1. Allergens
      Nomenclature of allergens and list of entries
    2. SIMILARITY comments
      Index of protein domains and families

    External Data

    Dasty 3