IF1C_HELAN
ID IF1C_HELAN Reviewed; 77 AA.
AC Q1KXS4;
DT 06-FEB-2007, integrated into UniProtKB/Swiss-Prot.
DT 30-MAY-2006, sequence version 1.
DT 03-AUG-2022, entry version 59.
DE RecName: Full=Translation initiation factor IF-1, chloroplastic {ECO:0000255|HAMAP-Rule:MF_00075};
GN Name=infA {ECO:0000255|HAMAP-Rule:MF_00075};
OS Helianthus annuus (Common sunflower).
OG Plastid; Chloroplast.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC asterids; campanulids; Asterales; Asteraceae; Asteroideae;
OC Heliantheae alliance; Heliantheae; Helianthus.
OX NCBI_TaxID=4232;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=cv. HA383;
RA Timme R.E., Kuehl J.V., Boore J.L., Jansen R.K.;
RT "A comparison of the first two published chloroplast genomes in Asteraceae:
RT Lactuca and Helianthus.";
RL Submitted (JAN-2006) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: One of the essential components for the initiation of protein
CC synthesis. Stabilizes the binding of IF-2 and IF-3 on the 30S subunit
CC to which N-formylmethionyl-tRNA(fMet) subsequently binds. Helps
CC modulate mRNA selection, yielding the 30S pre-initiation complex (PIC).
CC Upon addition of the 50S ribosomal subunit IF-1, IF-2 and IF-3 are
CC released leaving the mature 70S translation initiation complex.
CC {ECO:0000255|HAMAP-Rule:MF_00075}.
CC -!- SUBUNIT: Component of the 30S ribosomal translation pre-initiation
CC complex which assembles on the 30S ribosome in the order IF-2 and IF-3,
CC IF-1 and N-formylmethionyl-tRNA(fMet); mRNA recruitment can occur at
CC any time during PIC assembly. {ECO:0000255|HAMAP-Rule:MF_00075}.
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast {ECO:0000255|HAMAP-
CC Rule:MF_00075}.
CC -!- SIMILARITY: Belongs to the IF-1 family. {ECO:0000255|HAMAP-
CC Rule:MF_00075}.
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DR EMBL; DQ383815; ABD47180.1; -; Genomic_DNA.
DR RefSeq; YP_588152.1; NC_007977.1.
DR AlphaFoldDB; Q1KXS4; -.
DR SMR; Q1KXS4; -.
DR EnsemblPlants; mRNA:HanXRQr2_Chr01g0017371; CDS:HanXRQr2_Chr01g0017371.1; HanXRQr2_Chr01g0017371.
DR EnsemblPlants; mRNA:HanXRQr2_Chr15g0708241; CDS:HanXRQr2_Chr15g0708241.1; HanXRQr2_Chr15g0708241.
DR EnsemblPlants; mRNA:HanXRQr2_Chr17g0785341; CDS:HanXRQr2_Chr17g0785341.1; HanXRQr2_Chr17g0785341.
DR GeneID; 4055694; -.
DR Gramene; mRNA:HanXRQr2_Chr01g0017371; CDS:HanXRQr2_Chr01g0017371.1; HanXRQr2_Chr01g0017371.
DR Gramene; mRNA:HanXRQr2_Chr15g0708241; CDS:HanXRQr2_Chr15g0708241.1; HanXRQr2_Chr15g0708241.
DR Gramene; mRNA:HanXRQr2_Chr17g0785341; CDS:HanXRQr2_Chr17g0785341.1; HanXRQr2_Chr17g0785341.
DR KEGG; han:4055694; -.
DR OrthoDB; 1599390at2759; -.
DR GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR GO; GO:0043022; F:ribosome binding; IEA:UniProtKB-UniRule.
DR GO; GO:0019843; F:rRNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003743; F:translation initiation factor activity; IEA:UniProtKB-UniRule.
DR CDD; cd04451; S1_IF1; 1.
DR Gene3D; 2.40.50.140; -; 1.
DR HAMAP; MF_00075; IF_1; 1.
DR InterPro; IPR012340; NA-bd_OB-fold.
DR InterPro; IPR006196; RNA-binding_domain_S1_IF1.
DR InterPro; IPR022967; S1_dom.
DR InterPro; IPR004368; TIF_IF1.
DR PANTHER; PTHR33370; PTHR33370; 1.
DR Pfam; PF01176; eIF-1a; 1.
DR SMART; SM00316; S1; 1.
DR SUPFAM; SSF50249; SSF50249; 1.
DR TIGRFAMs; TIGR00008; infA; 1.
DR PROSITE; PS50832; S1_IF1_TYPE; 1.
PE 3: Inferred from homology;
KW Chloroplast; Initiation factor; Plastid; Protein biosynthesis; RNA-binding;
KW rRNA-binding.
FT CHAIN 1..77
FT /note="Translation initiation factor IF-1, chloroplastic"
FT /id="PRO_0000275392"
FT DOMAIN 1..71
FT /note="S1-like"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00075"
SQ SEQUENCE 77 AA; 9168 MW; 3F3A63F482684208 CRC64;
MKEQKWIHEG LITESLPNGM FRVRLDNEDM ILGYVSGKIR RSFIRILPGD RVKIEVSRYD
STRGRIIYRL RNKDSKD
