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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

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.

Catalytic activityi

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

Cofactori

Note: 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.UniRule annotation

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi581 – 5811Iron-sulfur (4Fe-4S); shared with dimeric partnerUniRule annotation
Metal bindingi590 – 5901Iron-sulfur (4Fe-4S); shared with dimeric partnerUniRule annotation
Metal bindingi683 – 6831Magnesium (chlorophyll-a' A1 axial ligand; P700 special pair)UniRule annotation
Metal bindingi691 – 6911Magnesium (chlorophyll-a A3 axial ligand)UniRule annotation
Binding sitei699 – 6991Chlorophyll-a A3UniRule annotation
Binding sitei700 – 7001Phylloquinone AUniRule annotation

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 A1UniRule annotation (EC:1.97.1.12UniRule annotation)
Alternative name(s):
PSI-AUniRule annotation
PsaAUniRule annotation
Gene namesi
Name:psaAUniRule annotation
Synonyms:psaA1
Encoded oniPlastid; Chloroplast
OrganismiPisum sativum (Garden pea)
Taxonomic identifieri3888 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsfabidsFabalesFabaceaePapilionoideaeFabeaePisum

Subcellular locationi

Plastidchloroplast thylakoid membrane UniRule annotation; Multi-pass membrane protein UniRule annotation

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei78 – 10124Helical; Name=IUniRule annotationAdd
BLAST
Transmembranei164 – 18724Helical; Name=IIUniRule annotationAdd
BLAST
Transmembranei203 – 22725Helical; Name=IIIUniRule annotationAdd
BLAST
Transmembranei299 – 31719Helical; Name=IVUniRule annotationAdd
BLAST
Transmembranei354 – 37724Helical; Name=VUniRule annotationAdd
BLAST
Transmembranei393 – 41927Helical; Name=VIUniRule annotationAdd
BLAST
Transmembranei441 – 46323Helical; Name=VIIUniRule annotationAdd
BLAST
Transmembranei539 – 55719Helical; Name=VIIIUniRule annotationAdd
BLAST
Transmembranei597 – 61822Helical; Name=IXUniRule annotationAdd
BLAST
Transmembranei672 – 69423Helical; Name=XUniRule annotationAdd
BLAST
Transmembranei732 – 75322Helical; Name=XIUniRule annotationAdd
BLAST

GO - Cellular componenti

  1. chloroplast thylakoid membrane Source: UniProtKB-HAMAP
  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 A1PRO_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.UniRule annotation

Protein-protein interaction databases

DIPiDIP-60281N.

Structurei

Secondary structure

1
758
Legend: HelixTurnBeta strand
Show more details
Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Beta strandi26 – 283Combined sources
Beta strandi35 – 373Combined sources
Beta strandi40 – 434Combined sources
Helixi52 – 543Combined sources
Beta strandi60 – 623Combined sources
Beta strandi64 – 674Combined sources
Beta strandi69 – 713Combined sources
Helixi73 – 819Combined sources
Turni82 – 854Combined sources
Helixi86 – 894Combined sources
Turni90 – 934Combined sources
Helixi94 – 974Combined sources
Beta strandi98 – 1036Combined sources
Helixi106 – 1116Combined sources
Turni113 – 1153Combined sources
Beta strandi119 – 1213Combined sources
Turni127 – 1326Combined sources
Beta strandi137 – 1393Combined sources
Beta strandi147 – 1493Combined sources
Beta strandi150 – 1523Combined sources
Helixi153 – 1553Combined sources
Helixi161 – 17313Combined sources
Turni174 – 1763Combined sources
Helixi183 – 1875Combined sources
Helixi193 – 1975Combined sources
Turni200 – 2023Combined sources
Helixi203 – 2064Combined sources
Helixi207 – 2115Combined sources
Turni213 – 2153Combined sources
Helixi216 – 2194Combined sources
Beta strandi222 – 2254Combined sources
Helixi228 – 2303Combined sources
Turni231 – 2355Combined sources
Turni250 – 2534Combined sources
Turni255 – 2584Combined sources
Beta strandi267 – 2715Combined sources
Helixi274 – 2785Combined sources
Turni279 – 2813Combined sources
Beta strandi289 – 2913Combined sources
Helixi296 – 31116Combined sources
Beta strandi319 – 3224Combined sources
Helixi328 – 3303Combined sources
Turni331 – 3333Combined sources
Beta strandi337 – 3393Combined sources
Helixi341 – 3433Combined sources
Turni344 – 3474Combined sources
Beta strandi350 – 3523Combined sources
Helixi355 – 36713Combined sources
Turni368 – 3714Combined sources
Helixi372 – 3754Combined sources
Turni376 – 3783Combined sources
Beta strandi382 – 3843Combined sources
Helixi389 – 3924Combined sources
Helixi394 – 3985Combined sources
Helixi402 – 4054Combined sources
Turni406 – 4083Combined sources
Helixi409 – 41911Combined sources
Beta strandi420 – 4256Combined sources
Helixi431 – 4377Combined sources
Turni440 – 4467Combined sources
Helixi447 – 4559Combined sources
Turni456 – 4583Combined sources
Helixi459 – 46810Combined sources
Turni469 – 4713Combined sources
Turni479 – 4813Combined sources
Beta strandi482 – 4843Combined sources
Turni490 – 4923Combined sources
Helixi493 – 4953Combined sources
Turni496 – 4983Combined sources
Beta strandi502 – 5043Combined sources
Beta strandi508 – 5114Combined sources
Beta strandi515 – 5184Combined sources
Beta strandi524 – 5263Combined sources
Turni536 – 5405Combined sources
Helixi541 – 56121Combined sources
Beta strandi562 – 5654Combined sources
Beta strandi573 – 5753Combined sources
Turni586 – 5883Combined sources
Turni595 – 5995Combined sources
Helixi600 – 62223Combined sources
Helixi630 – 6323Combined sources
Beta strandi637 – 6404Combined sources
Helixi642 – 6443Combined sources
Beta strandi646 – 6494Combined sources
Helixi651 – 6544Combined sources
Turni655 – 66612Combined sources
Beta strandi670 – 6723Combined sources
Turni674 – 68512Combined sources
Helixi686 – 6883Combined sources
Helixi689 – 6935Combined sources
Helixi698 – 71417Combined sources
Beta strandi719 – 7213Combined sources
Helixi728 – 7325Combined sources
Turni733 – 7353Combined sources
Helixi736 – 75015Combined sources
Beta strandi753 – 7564Combined sources

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
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.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP05310.

Family & Domainsi

Sequence similaritiesi

Belongs to the PsaA/PsaB family.UniRule annotation

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

        10         20         30         40         50
MIIRSPEPKV QILADPEVKI LVDRDPIKTS FEQWAKPGHF SRTIAKGPDT
60 70 80 90 100
TTWIWNLHAD AHDFDSHTSD LEEISRKVFS AHFGQLSIIF LWLSGMYFHG
110 120 130 140 150
ARFSNYEAWL NDPTHIGPSA QVVWPIVGQE ILNGDVGGGF RGIQITSGFF
160 170 180 190 200
QIWRASGITS ELQLYCTAIG ALVFAGLMLF AGWFHYHKAA PKLAWFQDVE
210 220 230 240 250
SMLNHHLAGL LGLGSLSWAR HQVHVSLPIN QFLNAGVDPK EIPLPHEFIL
260 270 280 290 300
NRDLLAQLYP SFAEGATPFF TLNWSKYADF LTFRGGLDPL TGGLWLTDIA
310 320 330 340 350
HHHLAIAILF LIAGHMYRTN WGIGHGIKDI LEAHKGPFTG QGHKGLYEIL
360 370 380 390 400
TTSWHAQLSI NLAMLGSLTI VVAQHMYSMP PYPYLATDYA TQLSLFTHHM
410 420 430 440 450
WIGGFLIVGA AAHAAIFMVR DYDPTTRYND LLDRVLRHRD AIISHLNWVC
460 470 480 490 500
IFLGFHSFGL YIHNDTMSAL GRPQDMFSDT AIQLQPVFAQ WIQNTHALAP
510 520 530 540 550
GTTAPGATAS TSLTWGGGDL VAVGNKVALL PIPLGTADFL VHHIHAFTIH
560 570 580 590 600
VTVLILLKGV LFARSSRLIP DKANLGFRFP CDGPGRGGTC QVSAWDHVFL
610 620 630 640 650
GLFWMYNSIS VVIFHFSWKM QSDVWGTIND QGVVTHITAG NFAQSSITIN
660 670 680 690 700
GWLRDFLWAQ ASQVIQSYGS SLSAYGLFFL GAHFVWAFSL MFLFSGRGYW
710 720 730 740 750
QELIESIVWA HNKLKVAPAT QPRALSIVQG RAVGVTHYLL GGIATTWAFF

LARIIAVG
Length:758
Mass (Da):84,199
Last modified:October 18, 2001 - v2
Checksum:i4B6CA42A585294A2
GO

Experimental Info

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

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
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:
EMBLi
GenBanki
DDBJi
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:
PDBei
RCSB PDBi
PDBji
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: November 26, 2014
This is version 107 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