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Protein

Translation initiation factor IF-1, chloroplastic

Gene

infA

Organism
Ostreococcus tauri
Status
Reviewed-Annotation score: Annotation score: 2 out of 5-Protein inferred from homologyi

Functioni

One of the essential components for the initiation of protein synthesis. Stabilizes the binding of IF-2 and IF-3 on the 30S subunit to which N-formylmethionyl-tRNA(fMet) subsequently binds. Helps modulate mRNA selection, yielding the 30S pre-initiation complex (PIC). Upon addition of the 50S ribosomal subunit IF-1, IF-2 and IF-3 are released leaving the mature 70S translation initation complex.UniRule annotation

GO - Molecular functioni

Keywordsi

Molecular functionInitiation factor, RNA-binding, rRNA-binding
Biological processProtein biosynthesis

Names & Taxonomyi

Protein namesi
Recommended name:
Translation initiation factor IF-1, chloroplasticUniRule annotation
Gene namesi
Name:infAUniRule annotation
Ordered Locus Names:OtCpg00400
Encoded oniPlastid; Chloroplast
OrganismiOstreococcus tauri
Taxonomic identifieri70448 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeChlorophytaprasinophytesMamiellophyceaeMamiellalesBathycoccaceaeOstreococcus
Proteomesi
  • UP000009170 Componenti: Chloroplast

Subcellular locationi

  • Plastidchloroplast UniRule annotation

GO - Cellular componenti

Keywords - Cellular componenti

Chloroplast, Plastid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002753951 – 78Translation initiation factor IF-1, chloroplasticAdd BLAST78

Interactioni

Subunit structurei

Component of the 30S ribosomal translation pre-initiation complex which assembles on the 30S ribosome in the order IF-2 and IF-3, IF-1 and N-formylmethionyl-tRNA(fMet); mRNA recruitment can occur at any time during PIC assembly.UniRule annotation

Protein-protein interaction databases

STRINGi70448.Q0P3L2.

Structurei

3D structure databases

ProteinModelPortaliQ0P3L2.
SMRiQ0P3L2.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini1 – 73S1-likeUniRule annotationAdd BLAST73

Sequence similaritiesi

Belongs to the IF-1 family.UniRule annotation

Phylogenomic databases

eggNOGiENOG410J31K. Eukaryota.
COG0361. LUCA.
HOGENOMiHOG000221323.
InParanoidiQ0P3L2.

Family and domain databases

CDDicd04451. S1_IF1. 1 hit.
HAMAPiMF_00075. IF_1. 1 hit.
InterProiView protein in InterPro
IPR012340. NA-bd_OB-fold.
IPR006196. RNA-binding_domain_S1_IF1.
IPR022967. S1_dom.
IPR004368. TIF_IF1.
PfamiView protein in Pfam
PF01176. eIF-1a. 1 hit.
SMARTiView protein in SMART
SM00316. S1. 1 hit.
SUPFAMiSSF50249. SSF50249. 1 hit.
TIGRFAMsiTIGR00008. infA. 1 hit.
PROSITEiView protein in PROSITE
PS50832. S1_IF1_TYPE. 1 hit.

Sequencei

Sequence statusi: Complete.

Q0P3L2-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MASNRELIEM EGVVVESLPN AMFQVELENG FQVLAHISGK IRRNSIKILL
60 70
GDRVTVELTP YDLTKGRIIY RLRKDRTQ
Length:78
Mass (Da):8,971
Last modified:September 19, 2006 - v1
Checksum:iDF2BF2FFBA2F7B56
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CR954199 Genomic DNA. Translation: CAL36365.1.
RefSeqiYP_717243.1. NC_008289.1.

Genome annotation databases

GeneIDi4238827.
KEGGiota:OstapCp40.

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.

Entry informationi

Entry nameiIF1C_OSTTA
AccessioniPrimary (citable) accession number: Q0P3L2
Entry historyiIntegrated into UniProtKB/Swiss-Prot: February 6, 2007
Last sequence update: September 19, 2006
Last modified: March 15, 2017
This is version 54 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Translation initiation factors
    List of translation initiation factor entries
  2. SIMILARITY comments
    Index of protein domains and families