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Protein

Chlorophyll a-b binding protein M9, chloroplastic

Gene

CAB-M9

Organism
Zea mays (Maize)
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 bindingi57Magnesium (chlorophyll-b 1 axial ligand); via carbonyl oxygenBy similarity1
Binding sitei79Chlorophyll-a 1; via amide nitrogenBy similarity1
Binding sitei85Chlorophyll-a 1By similarity1
Metal bindingi98Magnesium (chlorophyll-a 1 axial ligand)By similarity1
Metal bindingi101Magnesium (chlorophyll-a 2 axial ligand)By similarity1
Binding sitei103Chlorophyll-b 2By similarity1
Binding sitei136Chlorophyll-a 3By similarity1
Binding sitei146Chlorophyll-a 3; via amide nitrogenBy similarity1
Metal bindingi152Magnesium (chlorophyll-b 2 axial ligand); via carbonyl oxygenBy similarity1
Binding sitei156Chlorophyll-b 3By similarity1
Binding sitei164Chlorophyll-b 4 or chlorophyll-b 5By similarity1
Metal bindingi172Magnesium (chlorophyll-b 3 axial ligand)By similarity1
Binding sitei175Chlorophyll-b 4By similarity1
Binding sitei181Chlorophyll-b 2; via amide nitrogenBy similarity1
Binding sitei212Chlorophyll-a 5By similarity1
Metal bindingi213Magnesium (chlorophyll-a 3 axial ligand)By similarity1
Metal bindingi216Magnesium (chlorophyll-a 4 axial ligand)By similarity1
Binding sitei218Chlorophyll-a 1By similarity1
Metal bindingi230Magnesium (chlorophyll-a 5 axial ligand)By similarity1
Metal bindingi245Magnesium (chlorophyll-a 6 axial ligand)By similarity1
Binding sitei254Chlorophyll-a 6; via amide nitrogenBy similarity1
Binding sitei261Chlorophyll-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 M9, chloroplastic
Alternative name(s):
LHCII type I CAB-M9
Short name:
LHCP
Gene namesi
Name:CAB-M9
OrganismiZea mays (Maize)
Taxonomic identifieri4577 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaLiliopsidaPoalesPoaceaePACMAD cladePanicoideaeAndropogonodaeAndropogoneaeTripsacinaeZea
Proteomesi
  • UP000007305 Componenti: Unplaced

Organism-specific databases

MaizeGDBi61648

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
Transmembranei99 – 119HelicalSequence analysisAdd BLAST21
Transmembranei151 – 171HelicalSequence analysisAdd BLAST21
Transmembranei219 – 239HelicalSequence analysisAdd BLAST21

Keywords - Cellular componenti

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

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Transit peptidei1 – 32ChloroplastCuratedAdd BLAST32
ChainiPRO_000000367233 – 265Chlorophyll a-b binding protein M9, chloroplasticAdd BLAST233

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei33N2-acetylarginineBy similarity1
Modified residuei35PhosphothreonineBy similarity1

Post-translational modificationi

Photoregulated by reversible phosphorylation of its threonine residues.By similarity

Keywords - PTMi

Acetylation, Phosphoprotein

Proteomic databases

PaxDbiP27497
PRIDEiP27497

Expressioni

Gene expression databases

ExpressionAtlasiP27497 baseline and differential

Interactioni

Subunit structurei

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

Protein-protein interaction databases

STRINGi4577.GRMZM2G155216_P02

Structurei

3D structure databases

ProteinModelPortaliP27497
SMRiP27497
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
KOiK08912

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.

P27497-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MASSTMALSS TAFAGKAVNV PSSLFGEARV TMRKTAAKAK PAASSGSPWY
60 70 80 90 100
GPDRVLYLGP LSGEPPSYLT GEFPGDYGWD TAGLSADPET FAKNRELEVI
110 120 130 140 150
HSRWAMLGAL GCVFPELLAR NGVKFGEAVW FKAGSQIFSE GGLDYLGNPS
160 170 180 190 200
LIHAQSILAI WACQVVLMGA IEGYRVAGGP LGEVVDPLYP GGTFDPLGLA
210 220 230 240 250
DDPEAFADVK VKELKNGRLA MFSMFGFFVQ AIVTGKGPLE NLADHLADPV
260
NNNAWAYATN FVPGK
Length:265
Mass (Da):28,041
Last modified:August 1, 1992 - v1
Checksum:i1CC147D3044AC4A1
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X55892 mRNA Translation: CAA39376.1
PIRiS13098
RefSeqiNP_001105545.1, NM_001112075.1
UniGeneiZm.93642

Genome annotation databases

GeneIDi542530
KEGGizma:542530

Similar proteinsi

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X55892 mRNA Translation: CAA39376.1
PIRiS13098
RefSeqiNP_001105545.1, NM_001112075.1
UniGeneiZm.93642

3D structure databases

ProteinModelPortaliP27497
SMRiP27497
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi4577.GRMZM2G155216_P02

Proteomic databases

PaxDbiP27497
PRIDEiP27497

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

GeneIDi542530
KEGGizma:542530

Organism-specific databases

MaizeGDBi61648

Phylogenomic databases

eggNOGiENOG410IU0X Eukaryota
ENOG410ZHBU LUCA
KOiK08912

Gene expression databases

ExpressionAtlasiP27497 baseline and 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 nameiCB29_MAIZE
AccessioniPrimary (citable) accession number: P27497
Entry historyiIntegrated into UniProtKB/Swiss-Prot: August 1, 1992
Last sequence update: August 1, 1992
Last modified: October 10, 2018
This is version 104 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
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health

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