ID   IF1C_MESCR              Reviewed;         156 AA.
AC   Q94KR8;
DT   07-MAR-2006, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2001, sequence version 1.
DT   03-AUG-2022, entry version 73.
DE   RecName: Full=Translation initiation factor IF-1, chloroplastic;
DE   Flags: Precursor;
GN   Name=infA;
OS   Mesembryanthemum crystallinum (Common ice plant) (Cryophytum crystallinum).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   Caryophyllales; Aizoaceae; Mesembryanthemum;
OC   Mesembryanthemum subgen. Cryophytum.
OX   NCBI_TaxID=3544;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RX   PubMed=11251102; DOI=10.2307/3871412;
RA   Millen R.S., Olmstead R.G., Adams K.L., Palmer J.D., Lao N.T., Heggie L.,
RA   Kavanagh T.A., Hibberd J.M., Gray J.C., Morden C.W., Calie P.J.,
RA   Jermiin L.S., Wolfe K.H.;
RT   "Many parallel losses of infA from chloroplast DNA during angiosperm
RT   evolution with multiple independent transfers to the nucleus.";
RL   Plant Cell 13:645-658(2001).
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:0000250|UniProtKB:P69222}.
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:0000250|UniProtKB:P69222}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast
CC       {ECO:0000250|UniProtKB:O82499}.
CC   -!- SIMILARITY: Belongs to the IF-1 family. {ECO:0000305}.
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DR   EMBL; AF347665; AAK38869.1; -; mRNA.
DR   AlphaFoldDB; Q94KR8; -.
DR   SMR; Q94KR8; -.
DR   GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR   GO; GO:0003723; F:RNA binding; IEA:InterPro.
DR   GO; GO:0003743; F:translation initiation factor activity; IEA:UniProtKB-KW.
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   2: Evidence at transcript level;
KW   Chloroplast; Initiation factor; Plastid; Protein biosynthesis;
KW   Transit peptide.
FT   TRANSIT         1..49
FT                   /note="Chloroplast"
FT                   /evidence="ECO:0000255"
FT   CHAIN           50..156
FT                   /note="Translation initiation factor IF-1, chloroplastic"
FT                   /id="PRO_0000226956"
FT   DOMAIN          72..148
FT                   /note="S1-like"
FT   REGION          1..35
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   156 AA;  17379 MW;  D7C15B95A2ECD654 CRC64;
     MAASLTLMTS PPCSRSSKSP SPSPSPSLSC NQQQQYKPLL HHQWPPQISL KKEKSNESIV
     AKSPVIAAAT KGGSPSVQEQ KWIHEGVITE SLPNGMFWVK LDNCEDLVLG YISGRIRRSF
     IRVLPGDRVK IEVSRYDSTR GRITYRLRNN KDATTT