Initiation factor

Initiation factors are proteins that bind to the small subunit of the ribosome during the initiation of translation, a part of protein biosynthesis.

They are divided into three major groups:

External links

MeSH Initiation+Factor

Protein biosynthesis: translation (prokaryotic, eukaryotic)

Ribosomal proteins

Initiation factor

Prokaryotic	PIF-1 · PIF-2 · PIF-3

Archaeal	aIF1 · aIF2 · aIF5 · aIF6

Eukaryotic	eIF1 (EIF1AX, AY, 1B) eIF2 (EIF2S1, EIF2S2, EIF2S3) · EIF2B1, EIF2B2, EIF2B3, EIF2B4, EIF2B5 · EIF-2 kinase eIF3 (EIF3A, B, C, D, F, G, H, I, J, K, M, S6) eIF4 (EIF4A2, A3, B, E1, E2, G1, G2, G3, H) eIF5 (EIF5A, A2, B) eIF6 (EIF6)

Elongation factor

Prokaryotic	EF-Tu, EF-Ts, EF-G

Archaeal	aEF-1, aEF-2

Eukaryotic	EEF-1 (EEF1A1, EEF1A2, EEF1A3, EEF1B1, EEF1B2, EEF1B3, EEF1B4, EEF1D, EEF1E1, EEF1G) · EEF2

Release factor

Prokaryotic · Archaeal · Eukaryotic (ETF1)

Other

RPS1 · RPS2 · RPS3 · RPS4 · RPS5 · RPS6 · RPS7 · RPS8 · RPS9 · RPS10 · RPS11 · RPS12 · RPS13 · RPS14 · RPS15 · RPS16 · RPS17 · RPS18 · RPS19 · RPS20 · RPS21 · RPS22 · RPS23 · RPS24 · RPS25 · RPS26 · RPS27 · RPS28 · RPS29

Other concepts

Aminoacyl tRNA synthetase · Reading frame · Start codon · Stop codon · Shine-Dalgarno sequence/Kozak consensus sequence

see also disorders of translation and posttranslational modification
B bsyn: dna (repl, cycl, reco, repr) · tscr (fact, tcrg, nucl, rnat, rept, ptts) · tltn (risu, pttl, nexn) · dnab, rnab/runp · stru (domn, 1°, 2°, 3°, 4°)