ID   IF1C_PHAAO              Reviewed;          77 AA.
AC   Q3BAK2;
DT   07-MAR-2006, integrated into UniProtKB/Swiss-Prot.
DT   22-NOV-2005, sequence version 1.
DT   25-MAY-2022, entry version 59.
DE   RecName: Full=Translation initiation factor IF-1, chloroplastic {ECO:0000255|HAMAP-Rule:MF_00075};
GN   Name=infA {ECO:0000255|HAMAP-Rule:MF_00075};
OS   Phalaenopsis aphrodite subsp. formosana (Moth orchid).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Liliopsida; Asparagales; Orchidaceae;
OC   Epidendroideae; Vandeae; Aeridinae; Phalaenopsis.
OX   NCBI_TaxID=308872;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Taisugar TS-97;
RX   PubMed=16207935; DOI=10.1093/molbev/msj029;
RA   Chang C.-C., Lin H.-C., Lin I.-P., Chow T.-Y., Chen H.-H., Chen W.-H.,
RA   Cheng C.-H., Lin C.-Y., Liu S.-M., Chang C.-C., Chaw S.-M.;
RT   "The chloroplast genome of Phalaenopsis aphrodite (Orchidaceae):
RT   comparative analysis of evolutionary rate with that of grasses and its
RT   phylogenetic implications.";
RL   Mol. Biol. Evol. 23:279-291(2006).
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; AY916449; AAW82534.1; -; Genomic_DNA.
DR   RefSeq; YP_358616.1; NC_007499.1.
DR   AlphaFoldDB; Q3BAK2; -.
DR   SMR; Q3BAK2; -.
DR   GeneID; 3741715; -.
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; -; 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; IPR004368; TIF_IF1.
DR   PANTHER; PTHR33370; PTHR33370; 1.
DR   Pfam; PF01176; eIF-1a; 1.
DR   SUPFAM; SSF50249; SSF50249; 1.
DR   TIGRFAMs; TIGR00008; infA; 1.
DR   PROSITE; PS50832; S1_IF1_TYPE; 1.
PE   3: Inferred from homology;
KW   Chloroplast; Initiation factor; Plastid; Protein biosynthesis; RNA-binding;
KW   rRNA-binding.
FT   CHAIN           1..77
FT                   /note="Translation initiation factor IF-1, chloroplastic"
FT                   /id="PRO_0000226951"
FT   DOMAIN          1..71
FT                   /note="S1-like"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00075"
SQ   SEQUENCE   77 AA;  9151 MW;  4C6D960697ED331B CRC64;
     MKEQKLIHEG LITESLPNGM FRVRLDNEDL ILGYISGRIR RSFIRILPGD RVKIEMSRYD
     STRGRIIYRL RKKDSND