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P05310

- PSAA_PEA

UniProt

P05310 - PSAA_PEA

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Protein
Photosystem I P700 chlorophyll a apoprotein A1
Gene
psaA, psaA1
Organism
Pisum sativum (Garden pea)
Status
Reviewed - Annotation score: 4 out of 5 - Experimental evidence at protein leveli

Functioni

PsaA and PsaB bind P700, the primary electron donor of photosystem I (PSI), as well as the electron acceptors A0, A1 and FX. PSI is a plastocyanin-ferredoxin oxidoreductase, converting photonic excitation into a charge separation, which transfers an electron from the donor P700 chlorophyll pair to the spectroscopically characterized acceptors A0, A1, FX, FA and FB in turn. Oxidized P700 is reduced on the lumenal side of the thylakoid membrane by plastocyanin.UniRule annotation

Catalytic activityi

Reduced plastocyanin + oxidized ferredoxin + light = oxidized plastocyanin + reduced ferredoxin.UniRule annotation

Cofactori

P700 is a chlorophyll a/chlorophyll a' dimer, A0 is one or more chlorophyll a, A1 is one or both phylloquinones and FX is a shared 4Fe-4S iron-sulfur center By similarity.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi581 – 5811Iron-sulfur (4Fe-4S); shared with dimeric partner By similarity
Metal bindingi590 – 5901Iron-sulfur (4Fe-4S); shared with dimeric partner By similarity
Metal bindingi683 – 6831Magnesium (chlorophyll-a' A1 axial ligand; P700 special pair) By similarity
Metal bindingi691 – 6911Magnesium (chlorophyll-a A3 axial ligand) By similarity
Binding sitei699 – 6991Chlorophyll-a A3 By similarity
Binding sitei700 – 7001Phylloquinone A By similarity

GO - Molecular functioni

  1. 4 iron, 4 sulfur cluster binding Source: UniProtKB-KW
  2. chlorophyll binding Source: UniProtKB-KW
  3. electron carrier activity Source: UniProtKB-HAMAP
  4. magnesium ion binding Source: UniProtKB-HAMAP
  5. oxidoreductase activity Source: UniProtKB-KW

GO - Biological processi

  1. photosynthesis Source: UniProtKB-HAMAP
  2. protein-chromophore linkage Source: UniProtKB-KW
Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Electron transport, Photosynthesis, Transport

Keywords - Ligandi

4Fe-4S, Chlorophyll, Chromophore, Iron, Iron-sulfur, Magnesium, Metal-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Photosystem I P700 chlorophyll a apoprotein A1 (EC:1.97.1.12)
Alternative name(s):
PSI-A
PsaA
Gene namesi
Name:psaA
Synonyms:psaA1
Encoded oniPlastid; Chloroplast
OrganismiPisum sativum (Garden pea)
Taxonomic identifieri3888 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsfabidsFabalesFabaceaePapilionoideaeFabeaePisum

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei78 – 10124Helical; Name=I; Reviewed prediction
Add
BLAST
Transmembranei164 – 18724Helical; Name=II; Reviewed prediction
Add
BLAST
Transmembranei203 – 22725Helical; Name=III; Reviewed prediction
Add
BLAST
Transmembranei299 – 31719Helical; Name=IV; Reviewed prediction
Add
BLAST
Transmembranei354 – 37724Helical; Name=V; Reviewed prediction
Add
BLAST
Transmembranei393 – 41927Helical; Name=VI; Reviewed prediction
Add
BLAST
Transmembranei441 – 46323Helical; Name=VII; Reviewed prediction
Add
BLAST
Transmembranei539 – 55719Helical; Name=VIII; Reviewed prediction
Add
BLAST
Transmembranei597 – 61822Helical; Name=IX; Reviewed prediction
Add
BLAST
Transmembranei672 – 69423Helical; Name=X; Reviewed prediction
Add
BLAST
Transmembranei732 – 75322Helical; Name=XI; 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
Complete GO annotation...

Keywords - Cellular componenti

Chloroplast, Membrane, Photosystem I, Plastid, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 758758Photosystem I P700 chlorophyll a apoprotein A1UniRule annotation
PRO_0000088568Add
BLAST

Interactioni

Subunit structurei

The PsaA/B heterodimer binds the P700 chlorophyll special pair and subsequent electron acceptors. PSI consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. The eukaryotic PSI reaction center is composed of at least 11 subunits By similarity.

Protein-protein interaction databases

DIPiDIP-60281N.

Structurei

Secondary structure

Legend: HelixTurnBeta strand
Show more details
Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Beta strandi26 – 283
Beta strandi35 – 373
Beta strandi40 – 434
Helixi52 – 543
Beta strandi60 – 623
Beta strandi64 – 674
Beta strandi69 – 713
Helixi73 – 819
Turni82 – 854
Helixi86 – 894
Turni90 – 934
Helixi94 – 974
Beta strandi98 – 1036
Helixi106 – 1116
Turni113 – 1153
Beta strandi119 – 1213
Turni127 – 1326
Beta strandi137 – 1393
Beta strandi147 – 1493
Beta strandi150 – 1523
Helixi153 – 1553
Helixi161 – 17313
Turni174 – 1763
Helixi183 – 1875
Helixi193 – 1975
Turni200 – 2023
Helixi203 – 2064
Helixi207 – 2115
Turni213 – 2153
Helixi216 – 2194
Beta strandi222 – 2254
Helixi228 – 2303
Turni231 – 2355
Turni250 – 2534
Turni255 – 2584
Beta strandi267 – 2715
Helixi274 – 2785
Turni279 – 2813
Beta strandi289 – 2913
Helixi296 – 31116
Beta strandi319 – 3224
Helixi328 – 3303
Turni331 – 3333
Beta strandi337 – 3393
Helixi341 – 3433
Turni344 – 3474
Beta strandi350 – 3523
Helixi355 – 36713
Turni368 – 3714
Helixi372 – 3754
Turni376 – 3783
Beta strandi382 – 3843
Helixi389 – 3924
Helixi394 – 3985
Helixi402 – 4054
Turni406 – 4083
Helixi409 – 41911
Beta strandi420 – 4256
Helixi431 – 4377
Turni440 – 4467
Helixi447 – 4559
Turni456 – 4583
Helixi459 – 46810
Turni469 – 4713
Turni479 – 4813
Beta strandi482 – 4843
Turni490 – 4923
Helixi493 – 4953
Turni496 – 4983
Beta strandi502 – 5043
Beta strandi508 – 5114
Beta strandi515 – 5184
Beta strandi524 – 5263
Turni536 – 5405
Helixi541 – 56121
Beta strandi562 – 5654
Beta strandi573 – 5753
Turni586 – 5883
Turni595 – 5995
Helixi600 – 62223
Helixi630 – 6323
Beta strandi637 – 6404
Helixi642 – 6443
Beta strandi646 – 6494
Helixi651 – 6544
Turni655 – 66612
Beta strandi670 – 6723
Turni674 – 68512
Helixi686 – 6883
Helixi689 – 6935
Helixi698 – 71417
Beta strandi719 – 7213
Helixi728 – 7325
Turni733 – 7353
Helixi736 – 75015
Beta strandi753 – 7564

3D structure databases

Select the link destinations:
PDBe
RCSB PDB
PDBj
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
1YO9model-A1-758[»]
2O01X-ray3.40A5-758[»]
2WSCX-ray3.30A1-758[»]
2WSEX-ray3.49A1-758[»]
2WSFX-ray3.48A1-758[»]
3LW5X-ray3.30A21-758[»]
ProteinModelPortaliP05310.
SMRiP05310. Positions 31-758.

Miscellaneous databases

EvolutionaryTraceiP05310.

Family & Domainsi

Sequence similaritiesi

Belongs to the PsaA/PsaB family.

Keywords - Domaini

Transmembrane, Transmembrane helix

Family and domain databases

Gene3Di1.20.1130.10. 1 hit.
HAMAPiMF_00458. PSI_PsaA.
InterProiIPR006243. PSI_PsaA.
IPR001280. PSI_PsaA/B.
IPR020586. PSI_PsaA/B_CS.
[Graphical view]
PfamiPF00223. PsaA_PsaB. 1 hit.
[Graphical view]
PIRSFiPIRSF002905. PSI_A. 1 hit.
PRINTSiPR00257. PHOTSYSPSAAB.
SUPFAMiSSF81558. SSF81558. 1 hit.
TIGRFAMsiTIGR01335. psaA. 1 hit.
PROSITEiPS00419. PHOTOSYSTEM_I_PSAAB. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P05310-1 [UniParc]FASTAAdd to Basket

« Hide

MIIRSPEPKV QILADPEVKI LVDRDPIKTS FEQWAKPGHF SRTIAKGPDT    50
TTWIWNLHAD AHDFDSHTSD LEEISRKVFS AHFGQLSIIF LWLSGMYFHG 100
ARFSNYEAWL NDPTHIGPSA QVVWPIVGQE ILNGDVGGGF RGIQITSGFF 150
QIWRASGITS ELQLYCTAIG ALVFAGLMLF AGWFHYHKAA PKLAWFQDVE 200
SMLNHHLAGL LGLGSLSWAR HQVHVSLPIN QFLNAGVDPK EIPLPHEFIL 250
NRDLLAQLYP SFAEGATPFF TLNWSKYADF LTFRGGLDPL TGGLWLTDIA 300
HHHLAIAILF LIAGHMYRTN WGIGHGIKDI LEAHKGPFTG QGHKGLYEIL 350
TTSWHAQLSI NLAMLGSLTI VVAQHMYSMP PYPYLATDYA TQLSLFTHHM 400
WIGGFLIVGA AAHAAIFMVR DYDPTTRYND LLDRVLRHRD AIISHLNWVC 450
IFLGFHSFGL YIHNDTMSAL GRPQDMFSDT AIQLQPVFAQ WIQNTHALAP 500
GTTAPGATAS TSLTWGGGDL VAVGNKVALL PIPLGTADFL VHHIHAFTIH 550
VTVLILLKGV LFARSSRLIP DKANLGFRFP CDGPGRGGTC QVSAWDHVFL 600
GLFWMYNSIS VVIFHFSWKM QSDVWGTIND QGVVTHITAG NFAQSSITIN 650
GWLRDFLWAQ ASQVIQSYGS SLSAYGLFFL GAHFVWAFSL MFLFSGRGYW 700
QELIESIVWA HNKLKVAPAT QPRALSIVQG RAVGVTHYLL GGIATTWAFF 750
LARIIAVG 758
Length:758
Mass (Da):84,199
Last modified:October 18, 2001 - v2
Checksum:i4B6CA42A585294A2
GO

Sequence conflict

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sequence conflicti117 – 1171G → R in CAA29003. 1 Publication
Sequence conflicti176 – 1761G → A in CAA29003. 1 Publication
Sequence conflicti194 – 1941A → V in CAA29003. 1 Publication
Sequence conflicti220 – 2201R → G in CAA29003. 1 Publication
Sequence conflicti239 – 25315Missing1 Publication
Add
BLAST
Sequence conflicti345 – 3451G → GPFTGQGHKGPFTGQGHKG1 Publication
Sequence conflicti371 – 3788VVAQHMYS → IAAHHMIA in CAA29003. 1 Publication
Sequence conflicti382 – 3821Y → I in CAA29003. 1 Publication
Sequence conflicti390 – 3901A → G in CAA29003. 1 Publication
Sequence conflicti509 – 5091A → T in CAA29003. 1 Publication
Sequence conflicti514 – 5141T → I in CAA29003. 1 Publication
Sequence conflicti522 – 5221A → S in CAA29003. 1 Publication
Sequence conflicti525 – 5251N → G in CAA29003. 1 Publication
Sequence conflicti596 – 5961D → V in CAA29003. 1 Publication
Sequence conflicti608 – 6081S → A in CAA29003. 1 Publication
Sequence conflicti627 – 6271T → S in CAA29003. 1 Publication
Sequence conflicti639 – 6413AGN → GGR in CAA29003. 1 Publication

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X05423 Genomic DNA. Translation: CAA29003.1.
AF223227 Genomic DNA. Translation: AAF65219.1.
PIRiS00703.
RefSeqiYP_003587538.1. NC_014057.1.

Genome annotation databases

GeneIDi9073071.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
X05423 Genomic DNA. Translation: CAA29003.1 .
AF223227 Genomic DNA. Translation: AAF65219.1 .
PIRi S00703.
RefSeqi YP_003587538.1. NC_014057.1.

3D structure databases

Select the link destinations:
PDBe
RCSB PDB
PDBj
Links Updated
Entry Method Resolution (Å) Chain Positions PDBsum
1YO9 model - A 1-758 [» ]
2O01 X-ray 3.40 A 5-758 [» ]
2WSC X-ray 3.30 A 1-758 [» ]
2WSE X-ray 3.49 A 1-758 [» ]
2WSF X-ray 3.48 A 1-758 [» ]
3LW5 X-ray 3.30 A 21-758 [» ]
ProteinModelPortali P05310.
SMRi P05310. Positions 31-758.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

DIPi DIP-60281N.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

GeneIDi 9073071.

Miscellaneous databases

EvolutionaryTracei P05310.

Family and domain databases

Gene3Di 1.20.1130.10. 1 hit.
HAMAPi MF_00458. PSI_PsaA.
InterProi IPR006243. PSI_PsaA.
IPR001280. PSI_PsaA/B.
IPR020586. PSI_PsaA/B_CS.
[Graphical view ]
Pfami PF00223. PsaA_PsaB. 1 hit.
[Graphical view ]
PIRSFi PIRSF002905. PSI_A. 1 hit.
PRINTSi PR00257. PHOTSYSPSAAB.
SUPFAMi SSF81558. SSF81558. 1 hit.
TIGRFAMsi TIGR01335. psaA. 1 hit.
PROSITEi PS00419. PHOTOSYSTEM_I_PSAAB. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. "Sequence of two genes in pea chloroplast DNA coding for 84 and 82 kD polypeptides of the photosystem I complex."
    Lehmbeck J., Rasmussen O.F., Bookjans G.B., Jepsen B.R., Stummann B.M., Henningsen K.W.
    Plant Mol. Biol. 7:3-10(1986)
    [AGRICOLA] [Europe PMC]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
  2. "Error, bias, and long-branch attraction in data for two chloroplast photosystem genes in seed plants."
    Sanderson M.J., Wojciechowski M.F., Hu J.-M., Sher Khan T., Brady S.G.
    Mol. Biol. Evol. 17:782-797(2000) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 19-737.
    Strain: cv. Wojciechowski 398.

Entry informationi

Entry nameiPSAA_PEA
AccessioniPrimary (citable) accession number: P05310
Secondary accession number(s): Q9MUB9
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 1, 1988
Last sequence update: October 18, 2001
Last modified: July 9, 2014
This is version 104 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure

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

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