apoprotein

General Information (Source: NCBI Gene,UniProt)

Text mining Term apoprotein
UniProt ID PSAA_CAPBU
Name PSI-A
Photosystem I P700 chlorophyll a apoprotein A1
PsaA
Gene Names psaA
Taxonomy Capsella bursa-pastoris

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

Sequence

>gi|152032672|sp|A4QKJ2.1|PSAA_CAPBU RecName: Full=Photosystem I P700 chlorophyll a apoprotein A1; AltName: Full=PSI-A; AltName: Full=PsaA
MIIRSPEPEVKILVDRDPIKTSFEEWAKPGHFSRTIAKGPDTTTWIWNLHADAHDFDSHTSDLEEISRKV
FSAHFGQLSIIFLWLSGMYFHGARFSNYEAWLSDPTHIGPSAQVVWPIVGQEILNGDVGGGFRGIQITSG
FFQIWRASGITSELQLYCTAIGALVFAALMLFAGWFHYHKAAPKLAWFQDVESMLNHHLAGLLGLGSLSW
AGHQVHVSLPINQFLNAGVDPKEIPLPHEFILNRDLLAQLYPSFAEGATPFFTLNWSKYSEFLTFRGGLD
PVTGGLWLTDIAHHHLAIAILFLIAGHMYRTNWGIGHGIKDILEAHKGPFTGQGHKGLYEILTTSWHAQL
SLNLAMLGSLTIIVAHHMYSMPPYPYLATDYATQLSLFTHHMWIGGFLIVGAAAHAAIFMVRDYDPTNRY
NDLLDRVLRHRDAIISHLNWVCIFLGFHSFGLYIHNDTMSALGRPQDMFSDTAIQLQPVFAQWIQNTHAL
APGVTAPGETASTSLTWGGGELVAVGGKVALLPIPLGTADFLVHHIHAFTIHVTVLILLKGVLFARSSRL
IPDKANLGFRFPCDGPGRGGTCQVSAWDHVFLGLFWMYNAISVVIFHFSWKMQSDVWGSISDQGVVTHIT
GGNFAQSSITINGWLRDFLWAQASQVIQSYGSSLSAYGLFFLGAHFVWAFSLMFLFSGRGYWQELIESIV
WAHNKLKVAPATQPRALSIVQGRAVGVTHYLLGGIATTWAFFLARIIAVG

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Database Cross Reference

Ensembl Gene
UniGene
PDB
RefSeq YP_001123373.1
Pfam PF00223