ID   IF1C_OSTTA              Reviewed;          78 AA.
AC   Q0P3L2;
DT   06-FEB-2007, integrated into UniProtKB/Swiss-Prot.
DT   19-SEP-2006, sequence version 1.
DT   24-JAN-2024, entry version 70.
DE   RecName: Full=Translation initiation factor IF-1, chloroplastic {ECO:0000255|HAMAP-Rule:MF_00075};
GN   Name=infA {ECO:0000255|HAMAP-Rule:MF_00075};
GN   OrderedLocusNames=OtCpg00400;
OS   Ostreococcus tauri.
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Chlorophyta; Mamiellophyceae; Mamiellales;
OC   Bathycoccaceae; Ostreococcus.
OX   NCBI_TaxID=70448;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=OTTH0595;
RX   PubMed=17251180; DOI=10.1093/molbev/msm012;
RA   Robbens S., Derelle E., Ferraz C., Wuyts J., Moreau H., Van de Peer Y.;
RT   "The complete chloroplast and mitochondrial DNA sequence of Ostreococcus
RT   tauri: organelle genomes of the smallest eukaryote are examples of
RT   compaction.";
RL   Mol. Biol. Evol. 24:956-968(2007).
CC   -!- FUNCTION: One of the essential components for the initiation of protein
CC       synthesis. Stabilizes the binding of IF-2 and IF-3 on the 30S subunit
CC       to which N-formylmethionyl-tRNA(fMet) subsequently binds. Helps
CC       modulate mRNA selection, yielding the 30S pre-initiation complex (PIC).
CC       Upon addition of the 50S ribosomal subunit IF-1, IF-2 and IF-3 are
CC       released leaving the mature 70S translation initiation complex.
CC       {ECO:0000255|HAMAP-Rule:MF_00075}.
CC   -!- SUBUNIT: Component of the 30S ribosomal translation pre-initiation
CC       complex which assembles on the 30S ribosome in the order IF-2 and IF-3,
CC       IF-1 and N-formylmethionyl-tRNA(fMet); mRNA recruitment can occur at
CC       any time during PIC assembly. {ECO:0000255|HAMAP-Rule:MF_00075}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast {ECO:0000255|HAMAP-
CC       Rule:MF_00075}.
CC   -!- SIMILARITY: Belongs to the IF-1 family. {ECO:0000255|HAMAP-
CC       Rule:MF_00075}.
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DR   EMBL; CR954199; CAL36365.1; -; Genomic_DNA.
DR   RefSeq; YP_717243.1; NC_008289.1.
DR   AlphaFoldDB; Q0P3L2; -.
DR   SMR; Q0P3L2; -.
DR   STRING; 70448.Q0P3L2; -.
DR   GeneID; 4238827; -.
DR   KEGG; ota:OstapCp40; -.
DR   eggNOG; ENOG502S8M9; Eukaryota.
DR   InParanoid; Q0P3L2; -.
DR   OrthoDB; 1054at2759; -.
DR   Proteomes; UP000009170; Chloroplast.
DR   GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR   GO; GO:0043022; F:ribosome binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0019843; F:rRNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003743; F:translation initiation factor activity; IEA:UniProtKB-UniRule.
DR   CDD; cd04451; S1_IF1; 1.
DR   Gene3D; 2.40.50.140; Nucleic acid-binding proteins; 1.
DR   HAMAP; MF_00075; IF_1; 1.
DR   InterPro; IPR012340; NA-bd_OB-fold.
DR   InterPro; IPR006196; RNA-binding_domain_S1_IF1.
DR   InterPro; IPR003029; S1_domain.
DR   InterPro; IPR004368; TIF_IF1.
DR   NCBIfam; TIGR00008; infA; 1.
DR   PANTHER; PTHR33370; TRANSLATION INITIATION FACTOR IF-1, CHLOROPLASTIC; 1.
DR   PANTHER; PTHR33370:SF1; TRANSLATION INITIATION FACTOR IF-1, CHLOROPLASTIC; 1.
DR   Pfam; PF01176; eIF-1a; 1.
DR   SMART; SM00316; S1; 1.
DR   SUPFAM; SSF50249; Nucleic acid-binding proteins; 1.
DR   PROSITE; PS50832; S1_IF1_TYPE; 1.
PE   3: Inferred from homology;
KW   Chloroplast; Initiation factor; Plastid; Protein biosynthesis;
KW   Reference proteome; RNA-binding; rRNA-binding.
FT   CHAIN           1..78
FT                   /note="Translation initiation factor IF-1, chloroplastic"
FT                   /id="PRO_0000275395"
FT   DOMAIN          1..73
FT                   /note="S1-like"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00075"
SQ   SEQUENCE   78 AA;  8971 MW;  DF2BF2FFBA2F7B56 CRC64;
     MASNRELIEM EGVVVESLPN AMFQVELENG FQVLAHISGK IRRNSIKILL GDRVTVELTP
     YDLTKGRIIY RLRKDRTQ
//