ID   IF1_RHIL3               Reviewed;          72 AA.
AC   Q1MLP3;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   30-MAY-2006, sequence version 1.
DT   25-MAY-2022, entry version 93.
DE   RecName: Full=Translation initiation factor IF-1 {ECO:0000255|HAMAP-Rule:MF_00075};
GN   Name=infA {ECO:0000255|HAMAP-Rule:MF_00075}; OrderedLocusNames=RL0616;
OS   Rhizobium leguminosarum bv. viciae (strain 3841).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Rhizobiaceae; Rhizobium/Agrobacterium group; Rhizobium.
OX   NCBI_TaxID=216596;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=3841;
RX   PubMed=16640791; DOI=10.1186/gb-2006-7-4-r34;
RA   Young J.P.W., Crossman L.C., Johnston A.W.B., Thomson N.R., Ghazoui Z.F.,
RA   Hull K.H., Wexler M., Curson A.R.J., Todd J.D., Poole P.S., Mauchline T.H.,
RA   East A.K., Quail M.A., Churcher C., Arrowsmith C., Cherevach I.,
RA   Chillingworth T., Clarke K., Cronin A., Davis P., Fraser A., Hance Z.,
RA   Hauser H., Jagels K., Moule S., Mungall K., Norbertczak H.,
RA   Rabbinowitsch E., Sanders M., Simmonds M., Whitehead S., Parkhill J.;
RT   "The genome of Rhizobium leguminosarum has recognizable core and accessory
RT   components.";
RL   Genome Biol. 7:R34.1-R34.20(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: 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; AM236080; CAK06110.1; -; Genomic_DNA.
DR   RefSeq; WP_003545338.1; NC_008380.1.
DR   AlphaFoldDB; Q1MLP3; -.
DR   SMR; Q1MLP3; -.
DR   STRING; 216596.RL0616; -.
DR   EnsemblBacteria; CAK06110; CAK06110; RL0616.
DR   GeneID; 58688046; -.
DR   GeneID; 61479063; -.
DR   GeneID; 67483772; -.
DR   KEGG; rle:RL0616; -.
DR   eggNOG; COG0361; Bacteria.
DR   HOGENOM; CLU_151267_1_0_5; -.
DR   OMA; AHVSGKM; -.
DR   OrthoDB; 2066663at2; -.
DR   Proteomes; UP000006575; 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; 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   Cytoplasm; Initiation factor; Protein biosynthesis; RNA-binding;
KW   rRNA-binding.
FT   CHAIN           1..72
FT                   /note="Translation initiation factor IF-1"
FT                   /id="PRO_0000263853"
FT   DOMAIN          1..72
FT                   /note="S1-like"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00075"
SQ   SEQUENCE   72 AA;  8382 MW;  80543208323332D6 CRC64;
     MPKEEVLEFP GIVTELLPNA TFRVKLENEH EIIAHTAGRM RKNRIRVLAG DKVLVEMTPY
     DLTKGRITYR FK