ID   IF1_LACPL               Reviewed;          72 AA.
AC   Q88XW4; F9UMM7;
DT   31-OCT-2003, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   03-AUG-2022, entry version 99.
DE   RecName: Full=Translation initiation factor IF-1 {ECO:0000255|HAMAP-Rule:MF_00075};
GN   Name=infA {ECO:0000255|HAMAP-Rule:MF_00075}; OrderedLocusNames=lp_1059;
OS   Lactiplantibacillus plantarum (strain ATCC BAA-793 / NCIMB 8826 / WCFS1)
OS   (Lactobacillus plantarum).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Lactobacillaceae;
OC   Lactiplantibacillus.
OX   NCBI_TaxID=220668;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-793 / NCIMB 8826 / WCFS1;
RX   PubMed=12566566; DOI=10.1073/pnas.0337704100;
RA   Kleerebezem M., Boekhorst J., van Kranenburg R., Molenaar D., Kuipers O.P.,
RA   Leer R., Tarchini R., Peters S.A., Sandbrink H.M., Fiers M.W.E.J.,
RA   Stiekema W., Klein Lankhorst R.M., Bron P.A., Hoffer S.M.,
RA   Nierop Groot M.N., Kerkhoven R., De Vries M., Ursing B., De Vos W.M.,
RA   Siezen R.J.;
RT   "Complete genome sequence of Lactobacillus plantarum WCFS1.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:1990-1995(2003).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA], AND GENOME REANNOTATION.
RC   STRAIN=ATCC BAA-793 / NCIMB 8826 / WCFS1;
RX   PubMed=22156394; DOI=10.1128/jb.06275-11;
RA   Siezen R.J., Francke C., Renckens B., Boekhorst J., Wels M.,
RA   Kleerebezem M., van Hijum S.A.;
RT   "Complete resequencing and reannotation of the Lactobacillus plantarum
RT   WCFS1 genome.";
RL   J. Bacteriol. 194:195-196(2012).
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: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00075}.
CC   -!- SIMILARITY: Belongs to the IF-1 family. {ECO:0000255|HAMAP-
CC       Rule:MF_00075}.
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DR   EMBL; AL935263; CCC78466.1; -; Genomic_DNA.
DR   RefSeq; WP_003638082.1; NC_004567.2.
DR   RefSeq; YP_004888980.1; NC_004567.2.
DR   AlphaFoldDB; Q88XW4; -.
DR   SMR; Q88XW4; -.
DR   STRING; 220668.lp_1059; -.
DR   EnsemblBacteria; CCC78466; CCC78466; lp_1059.
DR   GeneID; 49393339; -.
DR   GeneID; 57024713; -.
DR   GeneID; 66448969; -.
DR   KEGG; lpl:lp_1059; -.
DR   PATRIC; fig|220668.9.peg.893; -.
DR   eggNOG; COG0361; Bacteria.
DR   HOGENOM; CLU_151267_1_0_9; -.
DR   OMA; AHVSGKM; -.
DR   PhylomeDB; Q88XW4; -.
DR   BioCyc; LPLA220668:G1GW0-909-MON; -.
DR   Proteomes; UP000000432; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; 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; IPR022967; S1_dom.
DR   InterPro; IPR004368; TIF_IF1.
DR   PANTHER; PTHR33370; PTHR33370; 1.
DR   Pfam; PF01176; eIF-1a; 1.
DR   SMART; SM00316; S1; 1.
DR   SUPFAM; SSF50249; SSF50249; 1.
DR   TIGRFAMs; TIGR00008; infA; 1.
DR   PROSITE; PS50832; S1_IF1_TYPE; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Initiation factor; Protein biosynthesis; Reference proteome;
KW   RNA-binding; rRNA-binding.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000250"
FT   CHAIN           2..72
FT                   /note="Translation initiation factor IF-1"
FT                   /id="PRO_0000095806"
FT   DOMAIN          2..72
FT                   /note="S1-like"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00075"
SQ   SEQUENCE   72 AA;  8236 MW;  DC78F5BFCBF9349A CRC64;
     MAKEDVIEIQ GTIKETLPNA MFKVELENGA EILAHVSGKI RMHYIRILPG DKVTVEMSPY
     DLTKGRITYR FK