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(-) Description

Title :  CYCLASE HOMOLOG
 
Authors :  N. Tanaka, P. Smith, S. Shuman
Date :  27 Nov 10  (Deposition) - 13 Apr 11  (Release) - 13 Apr 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.61
Chains :  Asym. Unit :  A,B,C,D
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Biol. Unit 3:  C  (1x)
Biol. Unit 4:  D  (1x)
Keywords :  Rtc-Like, Cyclase-Like, Modular, Alpha-Beta, Anion Pocket, Ribosome Biogenesis, Unknown Function (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  N. Tanaka, P. Smith, S. Shuman
Crystal Structure Of Rcl1, An Essential Component Of The Eukaryal Pre-Rrna Processosome Implicated In 18S Rrna Biogenesis.
Rna V. 17 595 2011
PubMed-ID: 21367972  |  Reference-DOI: 10.1261/RNA.2571811

(-) Compounds

Molecule 1 - RCL1 PROTEIN
    Chains: A, B, C, D
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Plasmid: PET28B-SMT3
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 562
    Expression System Vector Type: PLASMID
    Gene: KLLA0C05984G
    Organism Common: YEAST
    Organism Scientific: KLUYVEROMYCES LACTIS
    Organism Taxid: 28985

 Structural Features

(-) Chains, Units

  1234
Asymmetric Unit : ABCD
Biological Unit 1 (1x): A   
Biological Unit 2 (1x):  B  
Biological Unit 3 (1x):   C 
Biological Unit 4 (1x):    D

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 8)

Asymmetric Unit (3, 8)
No.NameCountTypeFull Name
1GOL1Ligand/IonGLYCEROL
2PEG2Ligand/IonDI(HYDROXYETHYL)ETHER
3TAR5Ligand/IonD(-)-TARTARIC ACID
Biological Unit 1 (2, 2)
No.NameCountTypeFull Name
1GOL-1Ligand/IonGLYCEROL
2PEG1Ligand/IonDI(HYDROXYETHYL)ETHER
3TAR1Ligand/IonD(-)-TARTARIC ACID
Biological Unit 2 (2, 2)
No.NameCountTypeFull Name
1GOL-1Ligand/IonGLYCEROL
2PEG1Ligand/IonDI(HYDROXYETHYL)ETHER
3TAR1Ligand/IonD(-)-TARTARIC ACID
Biological Unit 3 (1, 1)
No.NameCountTypeFull Name
1GOL-1Ligand/IonGLYCEROL
2PEG-1Ligand/IonDI(HYDROXYETHYL)ETHER
3TAR1Ligand/IonD(-)-TARTARIC ACID
Biological Unit 4 (2, 3)
No.NameCountTypeFull Name
1GOL1Ligand/IonGLYCEROL
2PEG-1Ligand/IonDI(HYDROXYETHYL)ETHER
3TAR2Ligand/IonD(-)-TARTARIC ACID

(-) Sites  (8, 8)

Asymmetric Unit (8, 8)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREASN A:15 , PHE A:16 , ARG A:17 , GLU A:48 , TYR A:97 , HOH A:420BINDING SITE FOR RESIDUE TAR A 401
2AC2SOFTWARETRP A:134 , ARG A:191 , THR A:225 , VAL A:245 , GLU A:247 , ARG A:253BINDING SITE FOR RESIDUE PEG A 410
3AC3SOFTWARESER B:13 , ARG B:14 , ASN B:15 , ARG B:17 , HOH B:383BINDING SITE FOR RESIDUE TAR B 401
4AC4SOFTWARETRP B:134 , THR B:225 , GLU B:247 , ARG B:253 , ARG D:146BINDING SITE FOR RESIDUE PEG B 410
5AC5SOFTWARESER C:13 , ASN C:15 , PHE C:16 , ARG C:17 , GLU C:48 , TYR C:97 , ARG C:319BINDING SITE FOR RESIDUE TAR C 401
6AC6SOFTWARESER D:13 , ARG D:14 , ASN D:15 , PHE D:16 , ARG D:17 , TYR D:97 , ARG D:319 , HOH D:393 , HOH D:440BINDING SITE FOR RESIDUE TAR D 401
7AC7SOFTWAREARG D:198 , ARG D:230 , GLY D:231BINDING SITE FOR RESIDUE TAR D 402
8AC8SOFTWAREARG D:191 , GLY D:192 , THR D:225BINDING SITE FOR RESIDUE GOL D 410

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3PQV)

(-) Cis Peptide Bonds  (6, 6)

Asymmetric Unit
No.Residues
1Pro A:158 -Pro A:159
2Ser B:5 -Arg B:6
3Pro B:158 -Pro B:159
4Pro C:158 -Pro C:159
5Ser D:5 -Arg D:6
6Pro D:158 -Pro D:159

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3PQV)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3PQV)

(-) Exons   (0, 0)

(no "Exon" information available for 3PQV)

(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:352
 aligned with Q6CUC5_KLULA | Q6CUC5 from UniProtKB/TrEMBL  Length:364

    Alignment length:352
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354  
         Q6CUC5_KLULA     5 SRYVTFEGSRNFRLRVVMATLSGKAIKIEKIRSDDLNPGLKDYEVSFLRLMEAVTNGSSIEISYTGTTVIFRPGIITGGSYTHQCPNSKPVGYFAEPMLYLAPFSKKKFSILFRGITSSHNDAGIDAIKWGLMPIMEKFGVRECALHTLKRGSPPLGGGEVHLVVDSLIAQPITMHALDKTMISSIRGVSYSTRVSPSLVNRMIDGAKKVLKSASCEVNITADVWRGENSGKSPGWGLTLVAENKQGWRIFSEAIGDAGDVPEDIGASVAYHLLEEISKSGVVGRNQLPLTILYMIIGKEDIGRLRITKDQIDERFVWLLRDIKKVFGTEILLKPVDDNTTDLIATIKGIGF 356
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeee...hhhhhhhhhhhhh..eeee...........hhhhhhhhhhhhhhee..eeee......eeee..ee..eeeeee.....hhhhhhhhhhhhhhhh...eeeeeee........hhhhhhhhhhhhhhhh.....eeeeee........eeeeeee..........ee.......eeeeeeeee...hhhhhhhhhhhhhhh.....ee..eeeee.hhhhh...eeeeeeeee.....eeeeeeee....hhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhh....eeeeeehhhhhhhhhhhhhhhhhhhhh...eeee.......eeeeee.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3pqv A   5 SRYVTFEGSRNFRLRVVMATLSGKAIKIEKIRSDDLNPGLKDYEVSFLRLMEAVTNGSSIEISYTGTTVIFRPGIITGGSYTHQCPNSKPVGYFAEPMLYLAPFSKKKFSILFRGITSSHNDAGIDAIKWGLMPIMEKFGVRECALHTLKRGSPPLGGGEVHLVVDSLIAQPITMHALDKTMISSIRGVSYSTRVSPSLVNRMIDGAKKVLKSASCEVNITADVWRGENSGKSPGWGLTLVAENKQGWRIFSEAIGDAGDVPEDIGASVAYHLLEEISKSGVVGRNQLPLTILYMIIGKEDIGRLRITKDQIDERFVWLLRDIKKVFGTEILLKPVDDNTTDLIATIKGIGF 356
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354  


Chain B from PDB  Type:PROTEIN  Length:354
 aligned with Q6CUC5_KLULA | Q6CUC5 from UniProtKB/TrEMBL  Length:364

    Alignment length:354
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354    
         Q6CUC5_KLULA     5 SRYVTFEGSRNFRLRVVMATLSGKAIKIEKIRSDDLNPGLKDYEVSFLRLMEAVTNGSSIEISYTGTTVIFRPGIITGGSYTHQCPNSKPVGYFAEPMLYLAPFSKKKFSILFRGITSSHNDAGIDAIKWGLMPIMEKFGVRECALHTLKRGSPPLGGGEVHLVVDSLIAQPITMHALDKTMISSIRGVSYSTRVSPSLVNRMIDGAKKVLKSASCEVNITADVWRGENSGKSPGWGLTLVAENKQGWRIFSEAIGDAGDVPEDIGASVAYHLLEEISKSGVVGRNQLPLTILYMIIGKEDIGRLRITKDQIDERFVWLLRDIKKVFGTEILLKPVDDNTTDLIATIKGIGFTN 358
               SCOP domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ...eeee...hhhhhhhhhhhhh..eeee...........hhhhhhhhhhhhhhee..eeee......eeee..ee..eeeeee.....hhhhhhhhhhhhhhhh...eeeeeee........hhhhhhhhhhhhhhhh....eeeeeee........eeeeeee..........ee.......eeeeeeeee...hhhhhhhhhhhhhhhh....eeeeeeeeehhhhh....eeeeeeeee.....eeeeeeee....hhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhh....eeeeeehhhhhhhhhhhhhhhhhhhh....eeee.......eeeeee...... Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 3pqv B   5 SRYVTFEGSRNFRLRVVMATLSGKAIKIEKIRSDDLNPGLKDYEVSFLRLMEAVTNGSSIEISYTGTTVIFRPGIITGGSYTHQCPNSKPVGYFAEPMLYLAPFSKKKFSILFRGITSSHNDAGIDAIKWGLMPIMEKFGVRECALHTLKRGSPPLGGGEVHLVVDSLIAQPITMHALDKTMISSIRGVSYSTRVSPSLVNRMIDGAKKVLKSASCEVNITADVWRGENSGKSPGWGLTLVAENKQGWRIFSEAIGDAGDVPEDIGASVAYHLLEEISKSGVVGRNQLPLTILYMIIGKEDIGRLRITKDQIDERFVWLLRDIKKVFGTEILLKPVDDNTTDLIATIKGIGFTN 358
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354    


Chain C from PDB  Type:PROTEIN  Length:351
 aligned with Q6CUC5_KLULA | Q6CUC5 from UniProtKB/TrEMBL  Length:364

    Alignment length:351
                                    15        25        35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265       275       285       295       305       315       325       335       345       355 
         Q6CUC5_KLULA     6 RYVTFEGSRNFRLRVVMATLSGKAIKIEKIRSDDLNPGLKDYEVSFLRLMEAVTNGSSIEISYTGTTVIFRPGIITGGSYTHQCPNSKPVGYFAEPMLYLAPFSKKKFSILFRGITSSHNDAGIDAIKWGLMPIMEKFGVRECALHTLKRGSPPLGGGEVHLVVDSLIAQPITMHALDKTMISSIRGVSYSTRVSPSLVNRMIDGAKKVLKSASCEVNITADVWRGENSGKSPGWGLTLVAENKQGWRIFSEAIGDAGDVPEDIGASVAYHLLEEISKSGVVGRNQLPLTILYMIIGKEDIGRLRITKDQIDERFVWLLRDIKKVFGTEILLKPVDDNTTDLIATIKGIGF 356
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..eeee...hhhhhhhhhhhhh..eeee...........hhhhhhhhhhhhhhee..eeee......eeee..ee.eeeeeee.....hhhhhhhhhhhhhhhh.eeeeeeeee........hhhhhhhhhhhhhhhh....eeeeeee........eeeeeee..........ee.......eeeeeeeee..hhhhhhhhhhhhhhhhh.....eeeeeeee.........eeeeeeeee.....eeeeeee.....hhhhhhhhhhhhhhhhhhh....hhhhhhhhhhhhhh....eeeeeehhhhhhhhhhhhhhhhhhhh....eeee.......eeeeee.... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3pqv C   6 RYVTFEGSRNFRLRVVMATLSGKAIKIEKIRSDDLNPGLKDYEVSFLRLMEAVTNGSSIEISYTGTTVIFRPGIITGGSYTHQCPNSKPVGYFAEPMLYLAPFSKKKFSILFRGITSSHNDAGIDAIKWGLMPIMEKFGVRECALHTLKRGSPPLGGGEVHLVVDSLIAQPITMHALDKTMISSIRGVSYSTRVSPSLVNRMIDGAKKVLKSASCEVNITADVWRGENSGKSPGWGLTLVAENKQGWRIFSEAIGDAGDVPEDIGASVAYHLLEEISKSGVVGRNQLPLTILYMIIGKEDIGRLRITKDQIDERFVWLLRDIKKVFGTEILLKPVDDNTTDLIATIKGIGF 356
                                    15        25        35        45        55        65        75        85        95       105       115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265       275       285       295       305       315       325       335       345       355 


Chain D from PDB  Type:PROTEIN  Length:352
 aligned with Q6CUC5_KLULA | Q6CUC5 from UniProtKB/TrEMBL  Length:364

    Alignment length:352
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354  
         Q6CUC5_KLULA     5 SRYVTFEGSRNFRLRVVMATLSGKAIKIEKIRSDDLNPGLKDYEVSFLRLMEAVTNGSSIEISYTGTTVIFRPGIITGGSYTHQCPNSKPVGYFAEPMLYLAPFSKKKFSILFRGITSSHNDAGIDAIKWGLMPIMEKFGVRECALHTLKRGSPPLGGGEVHLVVDSLIAQPITMHALDKTMISSIRGVSYSTRVSPSLVNRMIDGAKKVLKSASCEVNITADVWRGENSGKSPGWGLTLVAENKQGWRIFSEAIGDAGDVPEDIGASVAYHLLEEISKSGVVGRNQLPLTILYMIIGKEDIGRLRITKDQIDERFVWLLRDIKKVFGTEILLKPVDDNTTDLIATIKGIGF 356
               SCOP domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
           Pfam domains (1) RTC-3pqvD01 D:5-339                                                                                                                                                                                                                                                                                                                            ----------------- Pfam domains (1)
           Pfam domains (2) RTC-3pqvD02 D:5-339                                                                                                                                                                                                                                                                                                                            ----------------- Pfam domains (2)
           Pfam domains (3) RTC-3pqvD03 D:5-339                                                                                                                                                                                                                                                                                                                            ----------------- Pfam domains (3)
           Pfam domains (4) RTC-3pqvD04 D:5-339                                                                                                                                                                                                                                                                                                                            ----------------- Pfam domains (4)
           Pfam domains (5) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------RTC_insert-3pqvD05 D:182-284                                                                           ------------------------------------------------------------------------ Pfam domains (5)
           Pfam domains (6) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------RTC_insert-3pqvD06 D:182-284                                                                           ------------------------------------------------------------------------ Pfam domains (6)
           Pfam domains (7) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------RTC_insert-3pqvD07 D:182-284                                                                           ------------------------------------------------------------------------ Pfam domains (7)
           Pfam domains (8) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------RTC_insert-3pqvD08 D:182-284                                                                           ------------------------------------------------------------------------ Pfam domains (8)
         Sec.struct. author ...eeee...hhhhhhhhhhhhh..eeee...........hhhhhhhhhhhhhhee..eeee......eeee..ee..eeeeee.....hhhhhhhhhhhhhhhh...eeeeeee........hhhhhhhhhhhhhhhh....eeeeeee........eeeeeee..........ee.......eeeeeeeee...hhhhhhhhhhhhhhhh....ee..eeeeehhhhhh...eeeeeeeee.....eeeeeeee....hhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhh....eeeeeehhhhhhhhhhhhhhhhhhhhh...eeee.......eeeeee.... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 3pqv D   5 SRYVTFEGSRNFRLRVVMATLSGKAIKIEKIRSDDLNPGLKDYEVSFLRLMEAVTNGSSIEISYTGTTVIFRPGIITGGSYTHQCPNSKPVGYFAEPMLYLAPFSKKKFSILFRGITSSHNDAGIDAIKWGLMPIMEKFGVRECALHTLKRGSPPLGGGEVHLVVDSLIAQPITMHALDKTMISSIRGVSYSTRVSPSLVNRMIDGAKKVLKSASCEVNITADVWRGENSGKSPGWGLTLVAENKQGWRIFSEAIGDAGDVPEDIGASVAYHLLEEISKSGVVGRNQLPLTILYMIIGKEDIGRLRITKDQIDERFVWLLRDIKKVFGTEILLKPVDDNTTDLIATIKGIGF 356
                                    14        24        34        44        54        64        74        84        94       104       114       124       134       144       154       164       174       184       194       204       214       224       234       244       254       264       274       284       294       304       314       324       334       344       354
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (0, 0)

(no "SCOP Domain" information available for 3PQV)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3PQV)

(-) Pfam Domains  (2, 8)

Asymmetric Unit
(-)
Clan: EPT_RTPC (43)
(-)
Clan: no clan defined [family: RTC_insert] (3)

(-) Gene Ontology  (12, 12)

Asymmetric Unit(hide GO term definitions)
Chain A,B,C,D   (Q6CUC5_KLULA | Q6CUC5)
molecular function
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    GO:0004521    endoribonuclease activity    Catalysis of the hydrolysis of ester linkages within ribonucleic acid by creating internal breaks.
    GO:0008047    enzyme activator activity    Binds to and increases the activity of an enzyme.
biological process
    GO:0006396    RNA processing    Any process involved in the conversion of one or more primary RNA transcripts into one or more mature RNA molecules.
    GO:0000480    endonucleolytic cleavage in 5'-ETS of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA)    Endonucleolytic cleavage within the 5'-External Transcribed Spacer (ETS) of a tricistronic rRNA transcript that contains the Small Subunit (SSU) rRNA, the 5.8S rRNA, and the Large Subunit (LSU) rRNA in that order from 5' to 3' along the primary transcript. Endonucleolytic cleavage within the 5'-ETS of the pre-RNA is conserved as one of the early steps of rRNA processing in all eukaryotes, but the specific position of cleavage is variable.
    GO:0000447    endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA)    Endonucleolytic cleavage between the SSU-rRNA and the 5.8S rRNA of an rRNA molecule originally produced as a tricistronic rRNA transcript that contained the Small SubUnit (SSU) rRNA, the 5.8S rRNA, and the Large SubUnit (LSU) rRNA, in that order, from 5' to 3' along the primary transcript.
    GO:0000472    endonucleolytic cleavage to generate mature 5'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA)    Endonucleolytic cleavage between the 5'-External Transcribed Spacer (5'-ETS) and the 5' end of the SSU-rRNA of a tricistronic rRNA transcript that contains the Small Subunit (SSU) rRNA, the 5.8S rRNA, and the Large Subunit (LSU) rRNA in that order from 5' to 3' along the primary transcript, to produce the mature end of the SSU-rRNA.
    GO:0043085    positive regulation of catalytic activity    Any process that activates or increases the activity of an enzyme.
    GO:0006364    rRNA processing    Any process involved in the conversion of a primary ribosomal RNA (rRNA) transcript into one or more mature rRNA molecules.
    GO:0042254    ribosome biogenesis    A cellular process that results in the biosynthesis of constituent macromolecules, assembly, and arrangement of constituent parts of ribosome subunits; includes transport to the sites of protein synthesis.
cellular component
    GO:0005783    endoplasmic reticulum    The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).
    GO:0005730    nucleolus    A small, dense body one or more of which are present in the nucleus of eukaryotic cells. It is rich in RNA and protein, is not bounded by a limiting membrane, and is not seen during mitosis. Its prime function is the transcription of the nucleolar DNA into 45S ribosomal-precursor RNA, the processing of this RNA into 5.8S, 18S, and 28S components of ribosomal RNA, and the association of these components with 5S RNA and proteins synthesized outside the nucleolus. This association results in the formation of ribonucleoprotein precursors; these pass into the cytoplasm and mature into the 40S and 60S subunits of the ribosome.

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  3pqv
    Family and Domain Information: ProDom | SYSTERS
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    Orientation in Membranes: OPM
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  Q6CUC5_KLULA | Q6CUC5
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