IF3_THET2
ID IF3_THET2 Reviewed; 171 AA.
AC Q9ACJ8;
DT 27-MAR-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-JUN-2001, sequence version 1.
DT 25-MAY-2022, entry version 103.
DE RecName: Full=Translation initiation factor IF-3 {ECO:0000255|HAMAP-Rule:MF_00080};
GN Name=infC {ECO:0000255|HAMAP-Rule:MF_00080}; OrderedLocusNames=TT_C0183;
OS Thermus thermophilus (strain ATCC BAA-163 / DSM 7039 / HB27).
OC Bacteria; Deinococcus-Thermus; Deinococci; Thermales; Thermaceae; Thermus.
OX NCBI_TaxID=262724;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=11296217; DOI=10.1093/emboj/20.8.1829;
RA Pioletti M., Schluenzen F., Harms J., Zarivach R., Gluehmann M., Avila H.,
RA Bashan A., Bartels H., Auerbach T., Jacobi C., Hartsch T., Yonath A.,
RA Franceschi F.;
RT "Crystal structures of complexes of the small ribosomal subunit with
RT tetracycline, edeine and IF3.";
RL EMBO J. 20:1829-1839(2001).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-163 / DSM 7039 / HB27;
RX PubMed=15064768; DOI=10.1038/nbt956;
RA Henne A., Brueggemann H., Raasch C., Wiezer A., Hartsch T., Liesegang H.,
RA Johann A., Lienard T., Gohl O., Martinez-Arias R., Jacobi C.,
RA Starkuviene V., Schlenczeck S., Dencker S., Huber R., Klenk H.-P.,
RA Kramer W., Merkl R., Gottschalk G., Fritz H.-J.;
RT "The genome sequence of the extreme thermophile Thermus thermophilus.";
RL Nat. Biotechnol. 22:547-553(2004).
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}.
CC -!- SEQUENCE CAUTION:
CC Sequence=AAS80531.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; AJ409350; CAC35168.1; -; Genomic_DNA.
DR EMBL; AE017221; AAS80531.1; ALT_INIT; Genomic_DNA.
DR AlphaFoldDB; Q9ACJ8; -.
DR SMR; Q9ACJ8; -.
DR STRING; 262724.TT_C0183; -.
DR EnsemblBacteria; AAS80531; AAS80531; TT_C0183.
DR KEGG; tth:TT_C0183; -.
DR eggNOG; COG0290; Bacteria.
DR HOGENOM; CLU_054919_3_2_0; -.
DR OMA; RNMIMFL; -.
DR Proteomes; UP000000592; 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.
FT CHAIN 1..171
FT /note="Translation initiation factor IF-3"
FT /id="PRO_0000177598"
SQ SEQUENCE 171 AA; 19866 MW; 55954FFC1E365E29 CRC64;
MKEYLTNERI RAKQVRVVGP DGKQLGIMDT REALRLAQEM DLDLVLVGPN ADPPVARIMD
YSKWRYEQQM AEKEARKKAK RTEVKSIKFR VKIDEHDYQT KLGHIKRFLQ EGHKVKVTIM
FRGREVAHPE LGERILNRVT EDLKDLAVVE MKPEMLGRDM NMLLAPVKVS A