ID   IF3_PROA2               Reviewed;         197 AA.
AC   B4S3D1;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   23-SEP-2008, sequence version 1.
DT   25-MAY-2022, entry version 69.
DE   RecName: Full=Translation initiation factor IF-3 {ECO:0000255|HAMAP-Rule:MF_00080};
GN   Name=infC {ECO:0000255|HAMAP-Rule:MF_00080}; OrderedLocusNames=Paes_0166;
OS   Prosthecochloris aestuarii (strain DSM 271 / SK 413).
OC   Bacteria; Chlorobi; Chlorobia; Chlorobiales; Chlorobiaceae;
OC   Prosthecochloris.
OX   NCBI_TaxID=290512;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 271 / SK 413;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Schmutz J., Larimer F., Land M.,
RA   Hauser L., Kyrpides N., Anderson I., Liu Z., Li T., Zhao F., Overmann J.,
RA   Bryant D.A., Richardson P.;
RT   "Complete sequence of chromosome of Prosthecochloris aestuarii DSM 271.";
RL   Submitted (JUN-2008) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: IF-3 binds to the 30S ribosomal subunit and shifts the
CC       equilibrum between 70S ribosomes and their 50S and 30S subunits in
CC       favor of the free subunits, thus enhancing the availability of 30S
CC       subunits on which protein synthesis initiation begins.
CC       {ECO:0000255|HAMAP-Rule:MF_00080}.
CC   -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_00080}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00080}.
CC   -!- SIMILARITY: Belongs to the IF-3 family. {ECO:0000255|HAMAP-
CC       Rule:MF_00080}.
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DR   EMBL; CP001108; ACF45225.1; -; Genomic_DNA.
DR   RefSeq; WP_012504762.1; NC_011059.1.
DR   AlphaFoldDB; B4S3D1; -.
DR   SMR; B4S3D1; -.
DR   STRING; 290512.Paes_0166; -.
DR   EnsemblBacteria; ACF45225; ACF45225; Paes_0166.
DR   KEGG; paa:Paes_0166; -.
DR   eggNOG; COG0290; Bacteria.
DR   HOGENOM; CLU_054919_3_0_10; -.
DR   OMA; RNMIMFL; -.
DR   OrthoDB; 1760144at2; -.
DR   Proteomes; UP000002725; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003743; F:translation initiation factor activity; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.10.20.80; -; 1.
DR   Gene3D; 3.30.110.10; -; 1.
DR   HAMAP; MF_00080; IF_3; 1.
DR   InterPro; IPR036788; T_IF-3_C_sf.
DR   InterPro; IPR036787; T_IF-3_N_sf.
DR   InterPro; IPR001288; Translation_initiation_fac_3.
DR   InterPro; IPR019815; Translation_initiation_fac_3_C.
DR   InterPro; IPR019814; Translation_initiation_fac_3_N.
DR   PANTHER; PTHR10938; PTHR10938; 1.
DR   Pfam; PF00707; IF3_C; 1.
DR   Pfam; PF05198; IF3_N; 1.
DR   SUPFAM; SSF54364; SSF54364; 1.
DR   SUPFAM; SSF55200; SSF55200; 1.
DR   TIGRFAMs; TIGR00168; infC; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Initiation factor; Protein biosynthesis; Reference proteome.
FT   CHAIN           1..197
FT                   /note="Translation initiation factor IF-3"
FT                   /id="PRO_1000117103"
SQ   SEQUENCE   197 AA;  23265 MW;  3CF35A1C33C7DC14 CRC64;
     MRKKRSAPQK PKLTYRVNEQ IRVPEVRVVF KDGSQEILKT GEARKMAEQE GLDLIEVQPT
     AQPPVCKMDN YGKLQYKLDK NEKDRKKKSK PTELKELRFH PNTDTHDFDF KSAHLEEFLR
     KGNRVRATIV FLGRSIIYKD KGFELVERLK ERLSNVSNPE GEAKFEGKRL FIYFEPDKKK
     IEIFERQLAK MKPEEKP