ID   IF1_MYCPU               Reviewed;          72 AA.
AC   Q98Q04;
DT   26-SEP-2001, integrated into UniProtKB/Swiss-Prot.
DT   26-SEP-2001, sequence version 1.
DT   03-AUG-2022, entry version 112.
DE   RecName: Full=Translation initiation factor IF-1 {ECO:0000255|HAMAP-Rule:MF_00075};
GN   Name=infA {ECO:0000255|HAMAP-Rule:MF_00075}; OrderedLocusNames=MYPU_5650;
OS   Mycoplasmopsis pulmonis (strain UAB CTIP) (Mycoplasma pulmonis).
OC   Bacteria; Tenericutes; Mollicutes; Mycoplasmataceae; Mycoplasmopsis.
OX   NCBI_TaxID=272635;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=UAB CTIP;
RX   PubMed=11353084; DOI=10.1093/nar/29.10.2145;
RA   Chambaud I., Heilig R., Ferris S., Barbe V., Samson D., Galisson F.,
RA   Moszer I., Dybvig K., Wroblewski H., Viari A., Rocha E.P.C., Blanchard A.;
RT   "The complete genome sequence of the murine respiratory pathogen Mycoplasma
RT   pulmonis.";
RL   Nucleic Acids Res. 29:2145-2153(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: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; AL445565; CAC13738.1; -; Genomic_DNA.
DR   PIR; E90582; E90582.
DR   RefSeq; WP_010925366.1; NC_002771.1.
DR   AlphaFoldDB; Q98Q04; -.
DR   SMR; Q98Q04; -.
DR   STRING; 272635.MYPU_5650; -.
DR   EnsemblBacteria; CAC13738; CAC13738; CAC13738.
DR   KEGG; mpu:MYPU_5650; -.
DR   eggNOG; COG0361; Bacteria.
DR   HOGENOM; CLU_151267_1_0_14; -.
DR   OMA; AHVSGKM; -.
DR   OrthoDB; 2066663at2; -.
DR   BioCyc; MPUL272635:G1GT6-578-MON; -.
DR   Proteomes; UP000000528; 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; Reference proteome;
KW   RNA-binding; rRNA-binding.
FT   CHAIN           1..72
FT                   /note="Translation initiation factor IF-1"
FT                   /id="PRO_0000095826"
FT   DOMAIN          1..72
FT                   /note="S1-like"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00075"
SQ   SEQUENCE   72 AA;  8345 MW;  9777D83E638B52D0 CRC64;
     MSDKSIKMQA KVLKMFSTDK YELELLENKV IIKGHISGKM RIHKIRILPG DIVDVEISPH
     DLSNGRITYR HK