IF4A_NEUCR
ID IF4A_NEUCR Reviewed; 397 AA.
AC Q7RV88;
DT 04-APR-2006, integrated into UniProtKB/Swiss-Prot.
DT 04-DEC-2007, sequence version 2.
DT 03-AUG-2022, entry version 118.
DE RecName: Full=ATP-dependent RNA helicase eIF4A;
DE EC=3.6.4.13;
DE AltName: Full=Eukaryotic initiation factor 4A;
DE Short=eIF-4A;
DE AltName: Full=Translation initiation factor 1;
GN Name=tif-1; Synonyms=tif-41; ORFNames=NCU07420;
OS Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 /
OS FGSC 987).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Sordariomycetes;
OC Sordariomycetidae; Sordariales; Sordariaceae; Neurospora.
OX NCBI_TaxID=367110;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987;
RX PubMed=12712197; DOI=10.1038/nature01554;
RA Galagan J.E., Calvo S.E., Borkovich K.A., Selker E.U., Read N.D.,
RA Jaffe D.B., FitzHugh W., Ma L.-J., Smirnov S., Purcell S., Rehman B.,
RA Elkins T., Engels R., Wang S., Nielsen C.B., Butler J., Endrizzi M.,
RA Qui D., Ianakiev P., Bell-Pedersen D., Nelson M.A., Werner-Washburne M.,
RA Selitrennikoff C.P., Kinsey J.A., Braun E.L., Zelter A., Schulte U.,
RA Kothe G.O., Jedd G., Mewes H.-W., Staben C., Marcotte E., Greenberg D.,
RA Roy A., Foley K., Naylor J., Stange-Thomann N., Barrett R., Gnerre S.,
RA Kamal M., Kamvysselis M., Mauceli E.W., Bielke C., Rudd S., Frishman D.,
RA Krystofova S., Rasmussen C., Metzenberg R.L., Perkins D.D., Kroken S.,
RA Cogoni C., Macino G., Catcheside D.E.A., Li W., Pratt R.J., Osmani S.A.,
RA DeSouza C.P.C., Glass N.L., Orbach M.J., Berglund J.A., Voelker R.,
RA Yarden O., Plamann M., Seiler S., Dunlap J.C., Radford A., Aramayo R.,
RA Natvig D.O., Alex L.A., Mannhaupt G., Ebbole D.J., Freitag M., Paulsen I.,
RA Sachs M.S., Lander E.S., Nusbaum C., Birren B.W.;
RT "The genome sequence of the filamentous fungus Neurospora crassa.";
RL Nature 422:859-868(2003).
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: Component of the eIF4F complex, which composition varies with
CC external and internal environmental conditions. It is composed of at
CC least eIF4A, eIF4E and eIF4G (By similarity). {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC -!- DOMAIN: The Q motif is unique to and characteristic of the DEAD box
CC family of RNA helicases and controls ATP binding and hydrolysis.
CC -!- SIMILARITY: Belongs to the DEAD box helicase family. eIF4A subfamily.
CC {ECO:0000305}.
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DR EMBL; CM002236; EAA29185.2; -; Genomic_DNA.
DR RefSeq; XP_958421.2; XM_953328.3.
DR AlphaFoldDB; Q7RV88; -.
DR SMR; Q7RV88; -.
DR STRING; 5141.EFNCRP00000007323; -.
DR PRIDE; Q7RV88; -.
DR EnsemblFungi; EAA29185; EAA29185; NCU07420.
DR GeneID; 3874573; -.
DR KEGG; ncr:NCU07420; -.
DR VEuPathDB; FungiDB:NCU07420; -.
DR HOGENOM; CLU_003041_1_0_1; -.
DR InParanoid; Q7RV88; -.
DR OMA; EHKDGQR; -.
DR Proteomes; UP000001805; Chromosome 1, Linkage Group I.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0016887; F:ATP hydrolysis activity; IEA:RHEA.
DR GO; GO:0003723; F:RNA binding; IEA:UniProtKB-KW.
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 CDD; cd18046; DEADc_EIF4AII_EIF4AI_DDX2; 1.
DR Gene3D; 3.40.50.300; -; 2.
DR InterPro; IPR011545; DEAD/DEAH_box_helicase_dom.
DR InterPro; IPR044728; EIF4A_DEADc.
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; Cytoplasm; Helicase; Hydrolase; Initiation factor;
KW Nucleotide-binding; Protein biosynthesis; Reference proteome; RNA-binding.
FT CHAIN 1..397
FT /note="ATP-dependent RNA helicase eIF4A"
FT /id="PRO_0000232138"
FT DOMAIN 55..225
FT /note="Helicase ATP-binding"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00541"
FT DOMAIN 236..397
FT /note="Helicase C-terminal"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00542"
FT MOTIF 24..52
FT /note="Q motif"
FT MOTIF 173..176
FT /note="DEAD box"
FT BINDING 68..75
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00541"
SQ SEQUENCE 397 AA; 44845 MW; 01FA43016DAFB1A8 CRC64;
MATDKGLEDI PEGQIESNYD ETVDSFDEMN LKPELLRGIY AYGFERPSAI QQRAIMPVIK
GHDVIAQAQS GTGKTATFSI SVLQKIDPSL KACQALILAP TRELAQQIQK VVVAIGDFMN
IECHACIGGT SVRDDMKALQ DGPQVVVGTP GRVHDMIQRR FLKTDSMKMF VLDEADEMLS
RGFTEQIYDI FQLLPQSTQV VLLSATMPQD VLEVTTKFMR EPVRILVKKD ELTLEGIKQF
YIAVEKEEWK LDTLSDLYET VTITQAVIFC NTRRKVDWLT DKLTARDFTV SAMHGDMDQA
QRDLIMKEFR SGSSRVLIAT DLLARGIDVQ QVSLVINYDL PANRENYIHR IGRGGRFGRK
GVAINFVTAD DVRMMREIEQ FYSTQIEEMP MNVADLI
