ID   IF1_MYCPN               Reviewed;          78 AA.
AC   Q50298;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1997, sequence version 1.
DT   03-AUG-2022, entry version 115.
DE   RecName: Full=Translation initiation factor IF-1 {ECO:0000255|HAMAP-Rule:MF_00075};
GN   Name=infA {ECO:0000255|HAMAP-Rule:MF_00075}; OrderedLocusNames=MPN_187;
GN   ORFNames=MP644;
OS   Mycoplasma pneumoniae (strain ATCC 29342 / M129) (Mycoplasmoides
OS   pneumoniae).
OC   Bacteria; Tenericutes; Mollicutes; Mycoplasmataceae; Mycoplasma.
OX   NCBI_TaxID=272634;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=ATCC 29342 / M129;
RX   PubMed=8604303; DOI=10.1093/nar/24.4.628;
RA   Hilbert H., Himmelreich R., Plagens H., Herrmann R.;
RT   "Sequence analysis of 56 kb from the genome of the bacterium Mycoplasma
RT   pneumoniae comprising the dnaA region, the atp operon and a cluster of
RT   ribosomal protein genes.";
RL   Nucleic Acids Res. 24:628-639(1996).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29342 / M129;
RX   PubMed=8948633; DOI=10.1093/nar/24.22.4420;
RA   Himmelreich R., Hilbert H., Plagens H., Pirkl E., Li B.-C., Herrmann R.;
RT   "Complete sequence analysis of the genome of the bacterium Mycoplasma
RT   pneumoniae.";
RL   Nucleic Acids Res. 24:4420-4449(1996).
RN   [3]
RP   IDENTIFICATION BY MASS SPECTROMETRY.
RC   STRAIN=ATCC 29342 / M129;
RX   PubMed=11271496;
RX   DOI=10.1002/1522-2683(200011)21:17<3765::aid-elps3765>3.0.co;2-6;
RA   Regula J.T., Ueberle B., Boguth G., Goerg A., Schnoelzer M., Herrmann R.,
RA   Frank R.;
RT   "Towards a two-dimensional proteome map of Mycoplasma pneumoniae.";
RL   Electrophoresis 21:3765-3780(2000).
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; U34795; AAC43694.1; -; Genomic_DNA.
DR   EMBL; U00089; AAB96292.1; -; Genomic_DNA.
DR   PIR; S62821; S62821.
DR   RefSeq; NP_109875.1; NC_000912.1.
DR   RefSeq; WP_010874544.1; NC_000912.1.
DR   AlphaFoldDB; Q50298; -.
DR   SMR; Q50298; -.
DR   IntAct; Q50298; 7.
DR   STRING; 272634.MPN_187; -.
DR   EnsemblBacteria; AAB96292; AAB96292; MPN_187.
DR   GeneID; 66609165; -.
DR   KEGG; mpn:MPN_187; -.
DR   PATRIC; fig|272634.6.peg.205; -.
DR   HOGENOM; CLU_151267_1_0_14; -.
DR   OMA; ECLRSAM; -.
DR   BioCyc; MPNE272634:G1GJ3-302-MON; -.
DR   Proteomes; UP000000808; 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   1: Evidence at protein level;
KW   Cytoplasm; Initiation factor; Protein biosynthesis; Reference proteome;
KW   RNA-binding; rRNA-binding.
FT   CHAIN           1..78
FT                   /note="Translation initiation factor IF-1"
FT                   /id="PRO_0000095825"
FT   DOMAIN          4..78
FT                   /note="S1-like"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00075"
SQ   SEQUENCE   78 AA;  9025 MW;  CA9908B1B6FEDACF CRC64;
     MQPKFNNQAK QDKLVLTGKI LEIIHGDKFR VLLENNVEVD AHLAGKMRMR RLRILPGDLV
     EVEFSPYDLK LGRIIGRK