ID A0A176QC61_9MICO Unreviewed; 616 AA.
AC A0A176QC61;
DT 07-SEP-2016, integrated into UniProtKB/TrEMBL.
DT 07-SEP-2016, sequence version 1.
DT 27-MAR-2024, entry version 30.
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=AWH69_09980 {ECO:0000313|EMBL:OAB87275.1};
OS Janibacter melonis.
OC Bacteria; Actinomycetota; Actinomycetes; Micrococcales; Intrasporangiaceae;
OC Janibacter.
OX NCBI_TaxID=262209 {ECO:0000313|EMBL:OAB87275.1, ECO:0000313|Proteomes:UP000076976};
RN [1] {ECO:0000313|EMBL:OAB87275.1, ECO:0000313|Proteomes:UP000076976}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CD11-4 {ECO:0000313|EMBL:OAB87275.1,
RC ECO:0000313|Proteomes:UP000076976};
RA Nair G.R., Kaur G., Chander A.M., Mayilraj S.;
RT "Janibacter melonis strain CD11_4 genome sequencing and assembly.";
RL Submitted (JAN-2016) to the EMBL/GenBank/DDBJ databases.
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|HAMAP-Rule:MF_00100,
CC 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: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00100}.
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:OAB87275.1}.
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DR EMBL; LQZG01000003; OAB87275.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A176QC61; -.
DR STRING; 262209.AWH69_09980; -.
DR Proteomes; UP000076976; 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 PRINTS; PR00315; ELONGATNFCT.
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|ARBA:ARBA00022490, 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:UP000076976}.
FT DOMAIN 109..280
FT /note="Tr-type G"
FT /evidence="ECO:0000259|PROSITE:PS51722"
FT BINDING 118..125
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
FT BINDING 168..172
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
FT BINDING 222..225
FT /ligand="GTP"
FT /ligand_id="ChEBI:CHEBI:37565"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00100"
SQ SEQUENCE 616 AA; 66235 MW; C412B006405816DC CRC64;
MQAPSIGGVI VPRGDGTTVV RVRQGASLTD FADKINANPA SLVTVLFNLG EMATATQSLD
QETFELVGAE LGYDIQIVSP EEEERELFDS FNIDLETGIA DEEDEDLTPR PPVVTVMGHV
DHGKTRLLDA IRNADVQGGE AGGITQHIGA YQIHREHEGV DRALTFIDTP GHEAFTAMRA
RGAKVTDIAI LVVAADDGVM PQTIEALNHA QAADVPIVVA VNKIDVEGAD PMKVRGQLTE
YNLIAEEYGG DTMFVDVSAR QGQNIDSLLE AVLLTADAAL DMRANSDRDA RGVAIEANLD
KGRGATATVL VQAGTLHVGD AIVAGSAYGR VRALLDEHGN TLDEAGPSRP VQVLGLSSVP
RAGDTFVVAP DDRTARQIAE KREAADRQAS LAKARKRISL EDLDKVIAAG KIDTLNLILK
GDVSGSVEAL EDALLQIDVG DDVDLRIIDR GVGAITLNNI NLAMASDAII IGFNVRAEGQ
NAEVAEREGV EIRYYSVIYN AIEEIEQALK GMLKPEYEEV ELGTAEIREI FRSSKFGNIA
GSIVRSGEIK RGTKARITRQ GVVVAENVEI AGLRRFKDDV TEVREGFECG INLGSYNDLQ
LDDLIATYEM REKPRA
//
