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Protein

Translation initiation factor IF-1

Gene

infA

Organism
Mycobacterium bovis (strain ATCC BAA-935 / AF2122/97)
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-1UniRule annotation
Gene namesi
Name:infAUniRule annotation
Ordered Locus Names:BQ2027_MB3491C
OrganismiMycobacterium bovis (strain ATCC BAA-935 / AF2122/97)
Taxonomic identifieri233413 [NCBI]
Taxonomic lineageiBacteriaActinobacteriaCorynebacterialesMycobacteriaceaeMycobacteriumMycobacterium tuberculosis complex
Proteomesi
  • UP000001419 Componenti: Chromosome

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemovedBy similarity
ChainiPRO_00000958292 – 73Translation initiation factor IF-1Add BLAST72

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

Structurei

3D structure databases

ProteinModelPortaliP0A5H6.
SMRiP0A5H6.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini2 – 73S1-likeUniRule annotationAdd BLAST72

Sequence similaritiesi

Belongs to the IF-1 family.UniRule annotation

Phylogenomic databases

HOGENOMiHOG000221323.
KOiK02518.
OMAiAHVSGKM.

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.
IPR004368. TIF_IF1.
PANTHERiPTHR33370. PTHR33370. 1 hit.
PfamiView protein in Pfam
PF01176. eIF-1a. 1 hit.
SUPFAMiSSF50249. SSF50249. 1 hit.
TIGRFAMsiTIGR00008. infA. 1 hit.
PROSITEiView protein in PROSITE
PS50832. S1_IF1_TYPE. 1 hit.

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P0A5H6-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAKKDGAIEV EGRVVEPLPN AMFRIELENG HKVLAHISGK MRQHYIRILP
60 70
EDRVVVELSP YDLSRGRIVY RYK
Length:73
Mass (Da):8,489
Last modified:January 23, 2007 - v2
Checksum:i70CEB2A79E874448
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
U15140 Genomic DNA. Translation: AAB17595.1.
LT708304 Genomic DNA. Translation: SIU02119.1.
RefSeqiNP_857131.1. NC_002945.3.
WP_003418601.1. NC_002945.4.

Genome annotation databases

EnsemblBacteriaiCDO44762; CDO44762; Mb3491c.
GeneIDi4223708.
KEGGimbo:Mb3491c.
PATRICifig|233413.5.peg.3828.

Similar proteinsi

Entry informationi

Entry nameiIF1_MYCBO
AccessioniPrimary (citable) accession number: P0A5H6
Secondary accession number(s): A0A1R3Y4C0, P45957, X2BND6
Entry historyiIntegrated into UniProtKB/Swiss-Prot: March 15, 2005
Last sequence update: January 23, 2007
Last modified: November 22, 2017
This is version 83 of the entry and version 2 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

Documents

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