SubmitCancel

Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.

Q9SQL2

- CB24_PEA

UniProt

Q9SQL2 - CB24_PEA

(max 400 entries)x

Your basket is currently empty.

Select item(s) and click on "Add to basket" to create your own collection here
(400 entries max)

Protein
Chlorophyll a-b binding protein P4, chloroplastic
Gene
lhcA-P4
Organism
Pisum sativum (Garden pea)
Status
Reviewed - Annotation score: 5 out of 5 - Experimental evidence at protein 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.1 Publication
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.By similarity

Sites

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

GO - Molecular functioni

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

GO - Biological processi

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

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-P4
OrganismiPisum sativum (Garden pea)
Taxonomic identifieri3888 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsfabidsFabalesFabaceaePapilionoideaeFabeaePisum

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei101 – 12121Helical; Reviewed prediction
Add
BLAST
Transmembranei134 – 15421Helical; Reviewed prediction
Add
BLAST

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
Complete GO annotation...

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 – ?Chloroplast Reviewed prediction

Post-translational modificationi

Photoregulated by reversible phosphorylation of its threonine residues By similarity.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.

Protein-protein interaction databases

DIPiDIP-60296N.

Structurei

Secondary structure

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.

Miscellaneous databases

EvolutionaryTraceiQ9SQL2.

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.

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

Sequence conflict

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

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...

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. Greenfeast.
    Tissue: Leaf.
  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: Seedling.

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: February 19, 2014
This is version 62 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

Similar proteinsi