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Protein

Chlorophyll a-b binding protein, chloroplastic

Gene

OsI_012078

Organism
Oryza sativa subsp. indica (Rice)
Status
Reviewed-Annotation score: -Experimental evidence at transcript leveli

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

Note: 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)DescriptionActionsGraphical viewLength
Metal bindingi55Magnesium (chlorophyll-b 1 axial ligand); via carbonyl oxygenBy similarity1
Binding sitei77Chlorophyll-a 1; via amide nitrogenBy similarity1
Binding sitei83Chlorophyll-a 1By similarity1
Metal bindingi96Magnesium (chlorophyll-a 1 axial ligand)By similarity1
Metal bindingi99Magnesium (chlorophyll-a 2 axial ligand)By similarity1
Binding sitei101Chlorophyll-b 2By similarity1
Binding sitei134Chlorophyll-a 3By similarity1
Binding sitei144Chlorophyll-a 3; via amide nitrogenBy similarity1
Metal bindingi150Magnesium (chlorophyll-b 2 axial ligand); via carbonyl oxygenBy similarity1
Binding sitei154Chlorophyll-b 3By similarity1
Binding sitei162Chlorophyll-b 4 or chlorophyll-b 5By similarity1
Metal bindingi170Magnesium (chlorophyll-b 3 axial ligand)By similarity1
Binding sitei173Chlorophyll-b 4By similarity1
Binding sitei179Chlorophyll-b 2; via amide nitrogenBy similarity1
Binding sitei210Chlorophyll-a 5By similarity1
Metal bindingi211Magnesium (chlorophyll-a 3 axial ligand)By similarity1
Metal bindingi214Magnesium (chlorophyll-a 4 axial ligand)By similarity1
Binding sitei216Chlorophyll-a 1By similarity1
Metal bindingi228Magnesium (chlorophyll-a 5 axial ligand)By similarity1
Metal bindingi243Magnesium (chlorophyll-a 6 axial ligand)By similarity1
Binding sitei252Chlorophyll-a 6; via amide nitrogenBy similarity1
Binding sitei259Chlorophyll-b 5; via carbonyl oxygenBy similarity1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Biological processPhotosynthesis
LigandChlorophyll, Chromophore, Magnesium, Metal-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Chlorophyll a-b binding protein, chloroplastic
Alternative name(s):
LHCII type I CAB
Short name:
LHCP
Gene namesi
ORF Names:OsI_012078
OrganismiOryza sativa subsp. indica (Rice)
Taxonomic identifieri39946 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaLiliopsidaPoalesPoaceaeBOP cladeOryzoideaeOryzeaeOryzinaeOryzaOryza sativa
Proteomesi
  • UP000007015 Componenti: Chromosome 3

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cell wall Cytoskeleton Vacuole Chloroplast Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertion Graphics by Christian Stolte; Source: COMPARTMENTS

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transmembranei97 – 117HelicalSequence analysisAdd BLAST21
Transmembranei149 – 169HelicalSequence analysisAdd BLAST21
Transmembranei217 – 237HelicalSequence analysisAdd BLAST21

Keywords - Cellular componenti

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

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transit peptidei1 – 35ChloroplastCuratedAdd BLAST35
ChainiPRO_000029308036 – 263Chlorophyll a-b binding protein, chloroplasticAdd BLAST228

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei36N2-acetylarginineBy similarity1
Modified residuei38PhosphothreonineBy similarity1

Post-translational modificationi

Photoregulated by reversible phosphorylation of its threonine residues.By similarity

Keywords - PTMi

Acetylation, Phosphoprotein

Proteomic databases

PRIDEiA2XJ35

Expressioni

Gene expression databases

ExpressionAtlasiA2XJ35 differential

Interactioni

Subunit structurei

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

Protein-protein interaction databases

STRINGi39946.BGIOSGA013052-PA

Structurei

3D structure databases

ProteinModelPortaliA2XJ35
SMRiA2XJ35
ModBaseiSearch...
MobiDBiSearch...

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

Phylogenomic databases

eggNOGiENOG410IU0X Eukaryota
ENOG410ZHBU LUCA
HOGENOMiHOG000238032
OMAiRFTMRRT
OrthoDBiEOG09360I0J

Family and domain databases

Gene3Di1.10.3460.10, 1 hit
InterProiView protein in InterPro
IPR001344 Chloro_AB-bd_pln
IPR022796 Chloroa_b-bind
IPR023329 Chlorophyll_a/b-bd_dom_sf
PANTHERiPTHR21649 PTHR21649, 1 hit
PfamiView protein in Pfam
PF00504 Chloroa_b-bind, 1 hit

Sequencei

Sequence statusi: Complete.

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

A2XJ35-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MAASALHQTT SFLGTAPRRD ELVRRVGDSG GRITMRRTVK SAPQSIWYGP
60 70 80 90 100
DRPKYLGPFS EQTPSYLTGE FPGDYGWDTA GLSADPETFA RNRELEVIHS
110 120 130 140 150
RWAMLGALGC VFPEILSKNG VKFGEAVWFK AGAQIFSEGG LDYLGNPNLV
160 170 180 190 200
HAQSILAIWA VQVVLMGFVE GYRVGGGPLG EGLDKVYPGG AFDPLGLADD
210 220 230 240 250
PDTFAELKVK ELKNGRLAMF SMFGFFVQAI VTGKGPIENL FDHVADPVAN
260
NAWAYATNFV PGK
Length:263
Mass (Da):28,495
Last modified:March 20, 2007 - v1
Checksum:i32781068E91934D2
GO

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti28D → N in AAB82142 (Ref. 1) Curated1
Sequence conflicti45S → N in AAB82142 (Ref. 1) Curated1
Sequence conflicti70E → K in AAB82142 (Ref. 1) Curated1
Sequence conflicti111V → F in AAB82142 (Ref. 1) Curated1
Sequence conflicti122K → N in AAB82142 (Ref. 1) Curated1
Sequence conflicti148N → A in AAB82142 (Ref. 1) Curated1
Sequence conflicti151 – 152HA → RP in AAB82142 (Ref. 1) Curated2
Sequence conflicti194P → H in AAB82142 (Ref. 1) Curated1
Sequence conflicti199D → E in AAB82142 (Ref. 1) Curated1
Sequence conflicti207L → F in AAB82142 (Ref. 1) Curated1
Sequence conflicti212 – 213LK → FN in AAB82142 (Ref. 1) Curated2
Sequence conflicti223F → L in AAB82142 (Ref. 1) Curated1
Sequence conflicti240L → F in AAB82142 (Ref. 1) Curated1

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF022739 mRNA Translation: AAB82142.1
CM000128 Genomic DNA Translation: EAY90845.1

Genome annotation databases

EnsemblPlantsiBGIOSGA013052-TA; BGIOSGA013052-PA; BGIOSGA013052
GrameneiBGIOSGA013052-TA; BGIOSGA013052-PA; BGIOSGA013052

Similar proteinsi

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF022739 mRNA Translation: AAB82142.1
CM000128 Genomic DNA Translation: EAY90845.1

3D structure databases

ProteinModelPortaliA2XJ35
SMRiA2XJ35
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi39946.BGIOSGA013052-PA

Proteomic databases

PRIDEiA2XJ35

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblPlantsiBGIOSGA013052-TA; BGIOSGA013052-PA; BGIOSGA013052
GrameneiBGIOSGA013052-TA; BGIOSGA013052-PA; BGIOSGA013052

Phylogenomic databases

eggNOGiENOG410IU0X Eukaryota
ENOG410ZHBU LUCA
HOGENOMiHOG000238032
OMAiRFTMRRT
OrthoDBiEOG09360I0J

Gene expression databases

ExpressionAtlasiA2XJ35 differential

Family and domain databases

Gene3Di1.10.3460.10, 1 hit
InterProiView protein in InterPro
IPR001344 Chloro_AB-bd_pln
IPR022796 Chloroa_b-bind
IPR023329 Chlorophyll_a/b-bd_dom_sf
PANTHERiPTHR21649 PTHR21649, 1 hit
PfamiView protein in Pfam
PF00504 Chloroa_b-bind, 1 hit
ProtoNetiSearch...

Entry informationi

Entry nameiCB23_ORYSI
AccessioniPrimary (citable) accession number: A2XJ35
Secondary accession number(s): O22543
, O65326, P27519, Q6ATT3
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 10, 2007
Last sequence update: March 20, 2007
Last modified: October 10, 2018
This is version 69 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families
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Main funding by: National Institutes of Health

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