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ssc03008                    Pathway                                

Ribosome biogenesis in eukaryotes - Sus scrofa (pig)
Ribosomes are the cellular factories responsible for making proteins. In eukaryotes, ribosome biogenesis involves the production and correct assembly of four rRNAs and about 80 ribosomal proteins. It requires hundreds of factors not present in the mature particle. In the absence of these proteins, ribosome biogenesis is stalled and cell growth is terminated even under optimal growth conditions. The primary pre-rRNA transcript is  assembled into the 90S pre-ribosome, which contains both 40S and 60S assembly factors. Within this complex, the pre-rRNA is cleaved. pre-60S ribosomes are subjected to several sequential processing steps in the nucleoplasm involving numerous assembly intermediates before it is exported to the cytoplasm and matured into the 60S ribosomal subunit. The pre-40S ribosome is matured to the small ribosomal subunit in the cytoplasm by cleavage.
Genetic Information Processing; Translation
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Pathway map
Ribosome biogenesis in eukaryotes

All organismsOrtholog table
H/ACA ribonucleoprotein complex [PATH:ssc03008]
Sus scrofa (pig) [GN:ssc]
CSNK2B; casein kinase 2 beta [KO:K03115]
CSNK2A1; casein kinase 2 alpha 1 [KO:K03097] [EC:]
CSNK2A2; casein kinase 2 alpha 2 [KO:K03097] [EC:]
NOL6; nucleolar protein 6 [KO:K14544]
RRP7A; ribosomal RNA processing 7 homolog A [KO:K14545]
WDR43; WD repeat domain 43 [KO:K14546]
UTP4; UTP4, small subunit processome component [KO:K14548]
UTP15; UTP15, small subunit processome component [KO:K14549]
HEATR1; HEAT repeat containing 1 [KO:K14550]
WDR75; WD repeat domain 75 [KO:K14552]
UTP18; UTP18, small subunit processome component [KO:K14553]
WDR36; WD repeat domain 36 [KO:K14554]
TBL3; transducin beta like 3 [KO:K14555]
WDR3; WD repeat domain 3 [KO:K14556]
UTP6; UTP6, small subunit processome component [KO:K14557]
PWP2; PWP2 periodic tryptophan protein homolog (yeast) [KO:K14558]
MPHOSPH10; M-phase phosphoprotein 10 [KO:K14559]
IMP3; IMP3, U3 small nucleolar ribonucleoprotein [KO:K14560]
U3 small nucleolar ribonucleoprotein protein IMP4-like [KO:K14561]
IMP4; U3 small nucleolar ribonucleoprotein protein IMP4 [KO:K14561]
TCOF1; treacle ribosome biogenesis factor 1 [KO:K14562]
rRNA/tRNA 2'-O-methyltransferase fibrillarin-like protein 1 [KO:K14563] [EC:2.1.1.-]
FBL; fibrillarin [KO:K14563] [EC:2.1.1.-]
NOP56; NOP56 ribonucleoprotein [KO:K14564]
NOP58; NOP58 ribonucleoprotein [KO:K14565]
SNU13; SNU13 homolog, small nuclear ribonucleoprotein (U4/U6.U5) [KO:K12845]
DKC1; dyskerin pseudouridine synthase 1 [KO:K11131] [EC:5.4.99.-]
NHP2; NHP2 ribonucleoprotein [KO:K11129]
GAR1; GAR1 ribonucleoprotein [KO:K11128]
NOP10; NOP10 ribonucleoprotein [KO:K11130]
FCF1; FCF1 rRNA-processing protein [KO:K14566]
UTP14A; UTP14A small subunit processome component [KO:K14567]
DROSHA; drosha ribonuclease III [KO:K03685] [EC:]
EMG1; EMG1, N1-specific pseudouridine methyltransferase [KO:K14568] [EC:]
BMS1; BMS1, ribosome biogenesis factor [KO:K14569]
NAT10; N-acetyltransferase 10 [KO:K14521] [EC:2.3.1.-]
RCL1; RNA terminal phosphate cyclase like 1 [KO:K11108]
POP1; POP1 homolog, ribonuclease P/MRP subunit [KO:K01164] [EC:]
RPP38; ribonuclease P/MRP subunit p38 [KO:K14523] [EC:]
POP4; POP4 homolog, ribonuclease P/MRP subunit [KO:K03538] [EC:]
POP5; POP5 homolog, ribonuclease P/MRP subunit [KO:K03537] [EC:]
RPP25; ribonuclease P/MRP subunit p25 [KO:K14525] [EC:]
RPP25L; ribonuclease P/MRP subunit p25 like [KO:K14525] [EC:]
POP7; POP7 homolog, ribonuclease P/MRP subunit [KO:K14527] [EC:]
RPP30; ribonuclease P/MRP subunit p30 [KO:K03539] [EC:]
RPP40; ribonuclease P/MRP subunit p40 [KO:K14530] [EC:]
RNA exonuclease 1 homolog [KO:K14570] [EC:3.1.-.-]
REXO1; RNA exonuclease 1 homolog [KO:K14570] [EC:3.1.-.-]
putative RNA exonuclease NEF-sp [KO:K14570] [EC:3.1.-.-]
REXO2; RNA exonuclease 2 [KO:K13288] [EC:3.1.-.-]
XRN1; 5'-3' exoribonuclease 1 [KO:K12618] [EC:3.1.13.-]
XRN2; 5'-3' exoribonuclease 2 [KO:K12619] [EC:3.1.13.-]
GTPBP4; nucleolar GTP-binding protein 1 [KO:K06943]
GNL2; G protein nucleolar 2 [KO:K14537]
GNL3; G protein nucleolar 3 [KO:K14538]
GNL3L; G protein nucleolar 3 like [KO:K14538]
MDN1; midasin [KO:K14572]
RBM28; RNA binding motif protein 28 [KO:K14573]
NOB1; NIN1/PSMD8 binding protein 1 homolog [KO:K11883]
RAN; RAN, member RAS oncogene family [KO:K07936]
XPO1; exportin 1 [KO:K14290]
NMD3; NMD3 ribosome export adaptor [KO:K07562]
60S ribosomal export protein NMD3 [KO:K07562]
NXF2B; nuclear RNA export factor 2 [KO:K14284]
nuclear RNA export factor 2-like [KO:K14284]
NXF1; nuclear RNA export factor 1 [KO:K14284]
NXF2; nuclear RNA export factor 2 [KO:K14284]
NXT1; nuclear transport factor 2 like export factor 1 [KO:K14285]
NXT2; nuclear transport factor 2 like export factor 2 [KO:K14285]
EIF6; eukaryotic translation initiation factor 6 [KO:K03264]
SBDS; SBDS ribosome assembly guanine nucleotide exchange factor [KO:K14574]
EFL1; elongation factor like GTPase 1 [KO:K14536] [EC:3.6.5.-]
EFTUD1; elongation factor Tu GTP-binding domain-containing protein 1-like [KO:K14536] [EC:3.6.5.-]
LSG1; large 60S subunit nuclear export GTPase 1 [KO:K14539] [EC:3.6.1.-]
SPATA5; spermatogenesis associated 5 [KO:K14575]
adenylate kinase isoenzyme 6-like [KO:K18532] [EC:]
AK6; adenylate kinase 6 [KO:K18532] [EC:]
RIOK1; RIO kinase 1 [KO:K07178] [EC:]
RIOK2; RIO kinase 2 [KO:K07179] [EC:]
12S ribosomal RNA [KO:K01979]
RN18S; 18S ribosomal RNA [KO:K01979]
RN5-8S; 5.8S ribosomal RNA [KO:K01986]
16S ribosomal RNA [KO:K01982]
Freed EF, Bleichert F, Dutca LM, Baserga SJ
When ribosomes go bad: diseases of ribosome biogenesis.
Mol Biosyst 6:481-93 (2010)
Perez-Fernandez J, Roman A, De Las Rivas J, Bustelo XR, Dosil M
The 90S preribosome is a multimodular structure that is assembled through a hierarchical mechanism.
Mol Cell Biol 27:5414-29 (2007)
Strunk BS, Karbstein K
Powering through ribosome assembly.
RNA 15:2083-104 (2009)
Granneman S, Baserga SJ
Ribosome biogenesis: of knobs and RNA processing.
Exp Cell Res 296:43-50 (2004)
Kressler D, Hurt E, Bassler J
Driving ribosome assembly.
Biochim Biophys Acta 1803:673-83 (2010)
KO pathway

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