ID   IF4A_TRYB2              Reviewed;         404 AA.
AC   Q38F76;
DT   26-JUN-2007, integrated into UniProtKB/Swiss-Prot.
DT   22-NOV-2005, sequence version 1.
DT   03-AUG-2022, entry version 98.
DE   RecName: Full=Probable eukaryotic initiation factor 4A;
DE            Short=eIF-4A;
DE            EC=3.6.4.13;
DE   AltName: Full=ATP-dependent RNA helicase eIF4A;
GN   ORFNames=Tb09.160.3270;
OS   Trypanosoma brucei brucei (strain 927/4 GUTat10.1).
OC   Eukaryota; Discoba; Euglenozoa; Kinetoplastea; Metakinetoplastina;
OC   Trypanosomatida; Trypanosomatidae; Trypanosoma.
OX   NCBI_TaxID=185431;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=927/4 GUTat10.1 {ECO:0000312|Proteomes:UP000008524};
RX   PubMed=16020726; DOI=10.1126/science.1112642;
RA   Berriman M., Ghedin E., Hertz-Fowler C., Blandin G., Renauld H.,
RA   Bartholomeu D.C., Lennard N.J., Caler E., Hamlin N.E., Haas B., Bohme U.,
RA   Hannick L., Aslett M.A., Shallom J., Marcello L., Hou L., Wickstead B.,
RA   Alsmark U.C.M., Arrowsmith C., Atkin R.J., Barron A.J., Bringaud F.,
RA   Brooks K., Carrington M., Cherevach I., Chillingworth T.J., Churcher C.,
RA   Clark L.N., Corton C.H., Cronin A., Davies R.M., Doggett J., Djikeng A.,
RA   Feldblyum T., Field M.C., Fraser A., Goodhead I., Hance Z., Harper D.,
RA   Harris B.R., Hauser H., Hostetler J., Ivens A., Jagels K., Johnson D.,
RA   Johnson J., Jones K., Kerhornou A.X., Koo H., Larke N., Landfear S.,
RA   Larkin C., Leech V., Line A., Lord A., Macleod A., Mooney P.J., Moule S.,
RA   Martin D.M., Morgan G.W., Mungall K., Norbertczak H., Ormond D., Pai G.,
RA   Peacock C.S., Peterson J., Quail M.A., Rabbinowitsch E., Rajandream M.A.,
RA   Reitter C., Salzberg S.L., Sanders M., Schobel S., Sharp S., Simmonds M.,
RA   Simpson A.J., Tallon L., Turner C.M., Tait A., Tivey A.R., Van Aken S.,
RA   Walker D., Wanless D., Wang S., White B., White O., Whitehead S.,
RA   Woodward J., Wortman J., Adams M.D., Embley T.M., Gull K., Ullu E.,
RA   Barry J.D., Fairlamb A.H., Opperdoes F., Barrell B.G., Donelson J.E.,
RA   Hall N., Fraser C.M., Melville S.E., El-Sayed N.M.A.;
RT   "The genome of the African trypanosome Trypanosoma brucei.";
RL   Science 309:416-422(2005).
CC   -!- FUNCTION: ATP-dependent RNA helicase which is a subunit of the eIF4F
CC       complex involved in cap recognition and is required for mRNA binding to
CC       ribosome. In the current model of translation initiation, eIF4A unwinds
CC       RNA secondary structures in the 5'-UTR of mRNAs which is necessary to
CC       allow efficient binding of the small ribosomal subunit, and subsequent
CC       scanning for the initiator codon (By similarity). {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + H2O = ADP + H(+) + phosphate; Xref=Rhea:RHEA:13065,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:456216; EC=3.6.4.13;
CC   -!- SUBUNIT: eIF4F is a multi-subunit complex, the composition of which
CC       varies with external and internal environmental conditions. It is
CC       composed of at least EIF4A, EIF4E and EIF4G (By similarity).
CC       {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the DEAD box helicase family. eIF4A subfamily.
CC       {ECO:0000305}.
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DR   EMBL; CM000207; EAN76544.1; -; Genomic_DNA.
DR   RefSeq; XP_803774.1; XM_798681.1.
DR   AlphaFoldDB; Q38F76; -.
DR   SMR; Q38F76; -.
DR   STRING; 5691.EAN76544; -.
DR   PaxDb; Q38F76; -.
DR   GeneID; 3660503; -.
DR   KEGG; tbr:Tb09.160.3270; -.
DR   VEuPathDB; TriTrypDB:Tb927.9.4680; -.
DR   eggNOG; KOG0328; Eukaryota.
DR   InParanoid; Q38F76; -.
DR   OMA; EHKDGQR; -.
DR   Proteomes; UP000008524; Chromosome 9.
DR   GO; GO:0005737; C:cytoplasm; ISA:GeneDB.
DR   GO; GO:0005829; C:cytosol; ISA:GeneDB.
DR   GO; GO:0016281; C:eukaryotic translation initiation factor 4F complex; ISO:GeneDB.
DR   GO; GO:0005844; C:polysome; HDA:GeneDB.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0016887; F:ATP hydrolysis activity; IEA:RHEA.
DR   GO; GO:0008186; F:ATP-dependent activity, acting on RNA; ISO:GeneDB.
DR   GO; GO:0003729; F:mRNA binding; IDA:GeneDB.
DR   GO; GO:0003724; F:RNA helicase activity; IEA:UniProtKB-EC.
DR   GO; GO:0003743; F:translation initiation factor activity; IBA:GO_Central.
DR   GO; GO:0002183; P:cytoplasmic translational initiation; IBA:GO_Central.
DR   Gene3D; 3.40.50.300; -; 2.
DR   InterPro; IPR011545; DEAD/DEAH_box_helicase_dom.
DR   InterPro; IPR014001; Helicase_ATP-bd.
DR   InterPro; IPR001650; Helicase_C.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR000629; RNA-helicase_DEAD-box_CS.
DR   InterPro; IPR014014; RNA_helicase_DEAD_Q_motif.
DR   Pfam; PF00270; DEAD; 1.
DR   Pfam; PF00271; Helicase_C; 1.
DR   SMART; SM00487; DEXDc; 1.
DR   SMART; SM00490; HELICc; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   PROSITE; PS00039; DEAD_ATP_HELICASE; 1.
DR   PROSITE; PS51192; HELICASE_ATP_BIND_1; 1.
DR   PROSITE; PS51194; HELICASE_CTER; 1.
DR   PROSITE; PS51195; Q_MOTIF; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Helicase; Hydrolase; Initiation factor; Nucleotide-binding;
KW   Protein biosynthesis; Reference proteome; RNA-binding.
FT   CHAIN           1..404
FT                   /note="Probable eukaryotic initiation factor 4A"
FT                   /id="PRO_0000291644"
FT   DOMAIN          57..231
FT                   /note="Helicase ATP-binding"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00541"
FT   DOMAIN          242..402
FT                   /note="Helicase C-terminal"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00542"
FT   REGION          1..28
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   MOTIF           26..54
FT                   /note="Q motif"
FT   MOTIF           179..182
FT                   /note="DEAD box"
FT   BINDING         70..77
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00541"
SQ   SEQUENCE   404 AA;  45362 MW;  AB30F42D7CD7C717 CRC64;
     MAQQGKVEPQ DQDSFLDDQP GIRPIPSFDD MPLHQNLLRG IYSHGFEKPS SIQQRAIVPF
     TRGGDIIAQA QSGTGKTGAF SIGLLQRLDF RHNVLQGLVL SPTRELAMQT AEVITRIGEF
     LAEGSSSFCA TFVGGTRVQD DYRKLQSGTI VAVGTPGRVV DVTKRGAMRT ESLRVLVLDE
     ADEMLSQGFA EQIYDIFRFL PKEIQVALFS ATMPDDVLEL TKKFMRDPTR ILVKRESLTL
     EGIKQFFIAV EEEHKLDTLM DLYETVSIAQ SVIFANTRRK VDWLASQLNS SNHTVSCMHS
     EMSKQEREKV MGTFRNGSSR VLVTTDLVAR GIDVHHVNIV INFDLPTNKE NYLHRIGRGG
     RYGRKGVAIN FVTQKDVEVL REIESHYHTQ IEELPVDFAA YLGE