apoprotein

General Information (Source: NCBI Gene,UniProt)

Text mining Term apoprotein
UniProt ID PSAA_WHEAT
Name PSI-A
Photosystem I P700 chlorophyll a apoprotein A1
PsaA
Gene Names psaA
Taxonomy Triticum aestivum

General annotation

Function 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.
Subcellular location Plastid, chloroplast thylakoid membrane; Multi-pass membrane protein (By similarity).

Gene Ontology

GO:0009535 chloroplast thylakoid membrane CC
GO:0009522 photosystem I CC
GO:0018298 protein-chromophore linkage BP
GO:0016168 chlorophyll binding MF
GO:0022900 electron transport chain BP
GO:0015979 photosynthesis BP
GO:0006810 transport BP
GO:0051539 4 iron, 4 sulfur cluster binding MF
GO:0046872 metal ion binding MF
GO:0016021 integral to membrane CC

Sequence

>gi|17380192|sp|P58311.1|PSAA_WHEAT RecName: Full=Photosystem I P700 chlorophyll a apoprotein A1; AltName: Full=PSI-A; AltName: Full=PsaA
MIIRSPEPEVKIVVDRDPVKTSFEEWARPGHFSRTLAKGPDTTTWIWNLHADAHDFDSHTGDLEEISRKV
FSAHFGQLSIIFLWLSGMYFHGARFSNYEAWLSDPTHIGPSAQVVWPIVGQEILNGDVGGGFRGIQITSG
FFQLWRASGITSELQLYCTAIGALIFAALMLFAGWFHYHKAAPKLAWFQDVESMLNHHLAGLLGLGSLSW
AGHQIHVSLPINQFLDAGVDPKEIPLPHEFILNRDLLAQLYPSFAEGATPFFTLNWSKYAEFLTFRGGLD
PVTGGLWLTDIAHHHLAIAILFLIAGHMYRTNWGIGHGLKDILEAHKGPFTGQGHKGLYEILTTSWHAQL
SLNLAMLGSTTIVVAHHMYSMPPYPYLATDYGTQLSLFTHHMWIGGFLIVGAAAHAAIFMVRDYDPTTRY
NDLLDRVLRHRDAIISHLNWVCIFLGFHSFGLYIHNDTMSALGRPQDMFSDTAIQLQPIFAQWVQNIHAT
APGVTAPGATTSTSLTWGGGELVAVGGKVALLPIPLGTADFLVHHIHAFTIHVTVLILLKGVLFARSSRL
IPDKANLGFRFPCDGPGRGGTCQVSAWDHVFLGLFWMYNAISVVIFHFSWKMQSDVWGTISDQGVVTHIT
GGNFAQSSITINGWLRDFLWAQASQVIQSYGSSLSAYGLFFLGAHFVWAFSLMFLFSGRGYWQELIESIV
WAHNKLKVAPATQPRALSIIQGRAVGVTHYLLGGIATTWAFFLARIIAVG

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Database Cross Reference

Ensembl Gene
UniGene
PDB
RefSeq NP_114259.1
Pfam PF00223