ID F7NL94_9FIRM Unreviewed; 594 AA.
AC F7NL94;
DT 21-SEP-2011, integrated into UniProtKB/TrEMBL.
DT 21-SEP-2011, sequence version 1.
DT 27-MAR-2024, entry version 54.
DE RecName: Full=Translation initiation factor IF-2 {ECO:0000256|ARBA:ARBA00020675, ECO:0000256|HAMAP-Rule:MF_00100};
GN Name=infB {ECO:0000256|HAMAP-Rule:MF_00100};
GN ORFNames=ALO_14332 {ECO:0000313|EMBL:EGO63199.1};
OS Acetonema longum DSM 6540.
OC Bacteria; Bacillota; Negativicutes; Selenomonadales; Sporomusaceae;
OC Acetonema.
OX NCBI_TaxID=1009370 {ECO:0000313|EMBL:EGO63199.1, ECO:0000313|Proteomes:UP000003240};
RN [1] {ECO:0000313|EMBL:EGO63199.1, ECO:0000313|Proteomes:UP000003240}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 6540 {ECO:0000313|EMBL:EGO63199.1,
RC ECO:0000313|Proteomes:UP000003240};
RX PubMed=21673657; DOI=10.1038/emboj.2011.186;
RA Chen S., Beeby M., Murphy G.E., Leadbetter J.R., Hendrixson D.R.,
RA Briegel A., Li Z., Shi J., Tocheva E.I., Muller A., Dobro M.J.,
RA Jensen G.J.;
RT "Structural diversity of bacterial flagellar motors.";
RL EMBO J. 30:2972-2981(2011).
CC -!- FUNCTION: One of the essential components for the initiation of protein
CC synthesis. Protects formylmethionyl-tRNA from spontaneous hydrolysis
CC and promotes its binding to the 30S ribosomal subunits. Also involved
CC in the hydrolysis of GTP during the formation of the 70S ribosomal
CC complex. {ECO:0000256|ARBA:ARBA00025162, ECO:0000256|HAMAP-
CC Rule:MF_00100, ECO:0000256|RuleBase:RU000644}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00100}.
CC -!- SIMILARITY: Belongs to the TRAFAC class translation factor GTPase
CC superfamily. Classic translation factor GTPase family. IF-2 subfamily.
CC {ECO:0000256|ARBA:ARBA00007733, ECO:0000256|HAMAP-Rule:MF_00100,
CC ECO:0000256|RuleBase:RU000644}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EGO63199.1}.
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DR EMBL; AFGF01000126; EGO63199.1; -; Genomic_DNA.
DR AlphaFoldDB; F7NL94; -.
DR STRING; 1009370.ALO_14332; -.
DR eggNOG; COG0532; Bacteria.
DR Proteomes; UP000003240; Unassembled WGS sequence.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005525; F:GTP binding; IEA:UniProtKB-KW.
DR GO; GO:0003924; F:GTPase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0003743; F:translation initiation factor activity; IEA:UniProtKB-UniRule.
DR CDD; cd01887; IF2_eIF5B; 1.
DR CDD; cd03702; IF2_mtIF2_II; 1.
DR CDD; cd03692; mtIF2_IVc; 1.
DR Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 1.
DR Gene3D; 2.40.30.10; Translation factors; 2.
DR Gene3D; 3.40.50.10050; Translation initiation factor IF- 2, domain 3; 1.
DR HAMAP; MF_00100_B; IF_2_B; 1.
DR InterPro; IPR044145; IF2_II.
DR InterPro; IPR006847; IF2_N.
DR InterPro; IPR027417; P-loop_NTPase.
DR InterPro; IPR005225; Small_GTP-bd_dom.
DR InterPro; IPR000795; T_Tr_GTP-bd_dom.
DR InterPro; IPR000178; TF_IF2_bacterial-like.
DR InterPro; IPR015760; TIF_IF2.
DR InterPro; IPR023115; TIF_IF2_dom3.
DR InterPro; IPR036925; TIF_IF2_dom3_sf.
DR InterPro; IPR009000; Transl_B-barrel_sf.
DR NCBIfam; TIGR00487; IF-2; 1.
DR NCBIfam; TIGR00231; small_GTP; 1.
DR PANTHER; PTHR43381:SF5; TR-TYPE G DOMAIN-CONTAINING PROTEIN; 1.
DR PANTHER; PTHR43381; TRANSLATION INITIATION FACTOR IF-2-RELATED; 1.
DR Pfam; PF00009; GTP_EFTU; 1.
DR Pfam; PF11987; IF-2; 1.
DR Pfam; PF04760; IF2_N; 1.
DR SUPFAM; SSF52156; Initiation factor IF2/eIF5b, domain 3; 1.
DR SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
DR SUPFAM; SSF50447; Translation proteins; 2.
DR PROSITE; PS51722; G_TR_2; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00100};
KW GTP-binding {ECO:0000256|ARBA:ARBA00023134, ECO:0000256|HAMAP-
KW Rule:MF_00100};
KW Initiation factor {ECO:0000256|ARBA:ARBA00022540, ECO:0000256|HAMAP-
KW Rule:MF_00100};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_00100};
KW Protein biosynthesis {ECO:0000256|ARBA:ARBA00022917, ECO:0000256|HAMAP-
KW Rule:MF_00100}; Reference proteome {ECO:0000313|Proteomes:UP000003240}.
FT DOMAIN 96..265
FT /note="Tr-type G"
FT /evidence="ECO:0000259|PROSITE:PS51722"
FT REGION 99..247
FT /note="G-domain"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
FT BINDING 105..112
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
FT BINDING 151..155
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
FT BINDING 205..208
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
SQ SEQUENCE 594 AA; 64111 MW; 69D57BBB1DB41109 CRC64;
MNAQAQVRQE PAKPKVVKLD GPATVKELSS KFGREVSEII KKLMVLGVMA GINQEVDIET
ASILGSEFGI TVEELPPAED PTEIPEIEDS PESLLPRPPV VTIMGHVDHG KTSLLDAIRQ
TNVTAQEAGG ITQHIGAYQV NYQGKKVVFL DTPGHEAFTA MRARGAQVTD VAILVVAADD
GVMPQTIEAI NHAKAAKVPI IVAVNKIDRP EANPDRVTQQ LTEHGLVPEQ WGGDTIVVPV
SAHTKAGISE LLEMILLVSE VQDLKANPNR LAYGTIIEAQ LDKGRGPVAS VLVQKGTLHI
GDTIIAGTAF GKVRAMVNER GEKLKKAPPS TPVEVLGLSD VPQAGDILVA VDESTARAVA
EKRFAKKRTD EMNQVQKVSL DDLFSQIQEG KLKDLNIVIK ADVQGSIEAL RQAFAGLQNK
EVRVSIVHAG VGAINESDVM LASAANALII GFNVRPDANS RKAAEAEKID IRTYRIIYDV
INDVEAAMTG MLAPEYKEAV QGRIEVRKVF SVPKAVVAGS YVLEGKVTNH SQIRIIRNGI
VIHEGKVESL RRFKDEVKEA TAGYECGISI EKFRDIKEGD ILEAFTMELV KPGS
//
