ID   PSAEA_NICSY             Reviewed;         141 AA.
AC   Q41228;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1996, sequence version 1.
DT   25-MAY-2022, entry version 83.
DE   RecName: Full=Photosystem I reaction center subunit IV A, chloroplastic;
DE            Short=PSI-E A;
DE   Contains:
DE     RecName: Full=Photosystem I reaction center subunit IV A isoform 2;
DE   Flags: Precursor;
GN   Name=PSAEA;
OS   Nicotiana sylvestris (Wood tobacco) (South American tobacco).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; lamiids; Solanales; Solanaceae; Nicotianoideae; Nicotianeae;
OC   Nicotiana.
OX   NCBI_TaxID=4096;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA], AND PARTIAL PROTEIN SEQUENCE.
RC   TISSUE=Leaf;
RX   PubMed=8069490;
RA   Obokata J., Mikami K., Yamamoto Y., Hayashida N.;
RT   "Microheterogeneity of PSI-E subunit of photosystem I in Nicotiana
RT   sylvestris.";
RL   Plant Cell Physiol. 35:203-209(1994).
CC   -!- FUNCTION: Stabilizes the interaction between PsaC and the PSI core,
CC       assists the docking of the ferredoxin to PSI and interacts with
CC       ferredoxin-NADP oxidoreductase. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000250}; Peripheral membrane protein {ECO:0000250}.
CC   -!- PTM: 2 isoforms exists (ratio 1:1). With or without the N-terminal
CC       alanine.
CC   -!- SIMILARITY: Belongs to the PsaE family. {ECO:0000305}.
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DR   EMBL; S72356; AAB31704.1; -; mRNA.
DR   PIR; T16962; T16962.
DR   RefSeq; NP_001289510.1; NM_001302581.1.
DR   AlphaFoldDB; Q41228; -.
DR   SMR; Q41228; -.
DR   STRING; 4096.XP_009796778.1; -.
DR   GeneID; 104243298; -.
DR   eggNOG; ENOG502S1U2; Eukaryota.
DR   Proteomes; UP000189701; Unplaced.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0009538; C:photosystem I reaction center; IEA:InterPro.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   InterPro; IPR008990; Elect_transpt_acc-like_dom_sf.
DR   InterPro; IPR003375; PSI_PsaE.
DR   PANTHER; PTHR34549; PTHR34549; 1.
DR   Pfam; PF02427; PSI_PsaE; 1.
DR   SUPFAM; SSF50090; SSF50090; 1.
PE   1: Evidence at protein level;
KW   Chloroplast; Direct protein sequencing; Membrane; Photosynthesis;
KW   Photosystem I; Plastid; Reference proteome; Thylakoid; Transit peptide.
FT   TRANSIT         1..49
FT                   /note="Chloroplast"
FT   CHAIN           50..141
FT                   /note="Photosystem I reaction center subunit IV A,
FT                   chloroplastic"
FT                   /id="PRO_0000029382"
FT   CHAIN           51..141
FT                   /note="Photosystem I reaction center subunit IV A isoform
FT                   2"
FT                   /id="PRO_0000029383"
FT   REGION          57..83
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   141 AA;  15099 MW;  5F2F03F99DAA25F3 CRC64;
     MASCNMASAA SNFLVATPNV ASNTNTSRTT MLFFSSKNYG STAPRLVVRA AEEAAPPAAA
     ATAEPAEAPV KAAKPPPIGP KRGTKVRILR KESYWYKGTG SVVACDQDPN TRYPVVVRFN
     KVNYANVSTN NYALDEIEEV K