Structure of PDB 1n33 Chain R Binding Site BS01

Receptor Information
>1n33 Chain R (length=73) Species: 274 (Thermus thermophilus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
PSRKAKVKATLGEFDLRDYRNVEVLKRFLSETGKILPRRRTGLSGKEQRI
LAKTIKRARILGLLPFTEKLVRK
Ligand information
>1n33 Chain A (length=1513) [Search RNA sequence] [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
uggagaguuugauccuggcucagggugaacgcuggcggcgugccuaagac
augcaagucgugcgggccgcgggguuuuacuccguggucagcggcggacg
ggugaguaacgcgugggugaccuacccggaagagggggacaacccgggga
aacucgggcuaaucccccauguggacccgccccuugggguguguccaaag
ggcuuugcccgcuuccggaugggcccgcgucccaucagcuaguugguggg
guaauggcccaccaaggcgacgacggguagccggucugagaggauggccg
gccacaggggcacugagacacgggccccacuccuacgggaggcagcaguu
aggaaucuuccgcaaugggcgcaagccugacggagcgacgccgcuuggag
gaagaagcccuucgggguguaaacuccugaacccgggacgaaacccccga
cgaggggacugacgguaccgggguaauagcgccggccaacuccgugccag
cagccgcgguaauacggagggcgcgagcguuacccggauucacugggcgu
aaagggcguguaggcggccuggggcgucccaugugaaagaccacggcuca
accgugggggagcgugggauacgcucaggcuagacggugggagagggugg
uggaauucccggaguagcggugaaaugcgcagauaccgggaggaacgccg
auggcgaaggcagccaccugguccacccgugacgcugaggcgcgaaagcg
uggggagcaaaccggauuagauacccggguaguccacgcccuaaacgaug
cgcgcuaggucucugggucuccugggggccgaagcuaacgcguuaagcgc
gccgccuggggaguacggccgcaaggcugaaacucaaaggaauugacggg
ggcccgcacaagcgguggagcaugugguuuaauucgaagcaacgcgaaga
accuuaccaggccuugacaugcuagggaacccgggugaaagccuggggug
ccccgcgaggggagcccuagcacaggugcugcauggccgucgucagcucg
ugccgugagguguuggguuaagucccgcaacgagcgcaacccccgccguu
aguugccagcgguucggccgggcacucuaacgggacugcccgcgaaagcg
ggaggaaggaggggacgacgucuggucagcauggcccuuacggccugggc
gacacacgugcuacaaugcccacuacaaagcgaugccacccggcaacggg
gagcuaaucgcaaaaaggugggcccaguucggauuggggucugcaacccg
accccaugaagccggaaucgcuaguaaucgcggaucagccaugccgcggu
gaauacguucccgggccuuguacacaccgcccgucacgccaugggagcgg
gcucuacccgaagucgccgggagccuacgggcaggcgccgaggguagggc
ccgugacuggggcgaagucguaacaagguagcuguaccggaaggugcggc
uggaucacuuucu
....<<<<..[.((((.>>>>.<<<<.<<<<<..<<<<<<<<..<..<<<
.<<<..<<<..<<.<<<<<<<<<.......>>>>>>>>>.>>>>>.....
.<<.......<<<<<<<<..<<...<<<<<<<.<<<<<....<<<<<...
...>>>>>.....>>>>>...<<<<<.<<<<<....>>>>>.>>>>>..<
<<<...>>>>.>>>>>>>..>>>>>>>>>><<<....<<<..<<<<<<<<
.......>>>>>>>>>>>......>>>..<<<<<<<<....>>>>...>>
>>.>>.<<<<<.<.........>>>>>>.<<<<....>>>>...>>>>>>
>........<<<....<<<<....>>>>..>>>..>>.>>>>>>..<<<<
......<<<<<..>>>>>.....>>>>....<<<<<......<.<<<<..
...>>>>..>.......>>>>>......<<<<<(((...<<<<<.....<
<.)))>>.......>>>>>>>>>>..>>>>>>>>>..........<<<((
.....<<<<...<<<.<<<<<<<.<<<<<<<<<<......<<<<<<....
.>>>>>>....>>>>>>>>..>>>>>>>>>...<<<<<<<<...<<<<<<
<....<<<<<<<.<..<<<......>>>.....>.>>>>>>>........
...<<....>>.>>>>>>>..>>>>>.>>>...>>>...>>>>....<<<
<<<...<<...<<<<.<.....>.>>>>...>>>>>>>>..........<
<<<<<..<<<<<<<<<<...>>>>>>>>>>...<<..))>>.....>>>>
>>.>>>.<<<......<<<<....>>>>....>>>..)))).]<<<<<.<
<<<<<<.<<.<<<<<<..<<<<<<<<<<......<<........>>....
......<<<<<<<......<<<<<<....<<.<<<<....>>>>.>>...
<<<<....>>>>....>>>>>>.<<<.<<<..<<<<<<.......<<<<<
<<<<....>>>..<<<<......>>>>..>>>>>>.....<<<<.<<<<<
<<..<<...<<<.....>>>.>>...>>>>>>>.....<<<<<....>>>
>>........>>>>.........>>>...>>>>>>>>>...>>>>>>>..
.>>.>>>>>>>>.....<<<<<<<.....<<<..<...<<<<....>>>>
...>....>>>.....>>>>>>>......<....<<<<<<<........>
>>>>>>....>.....>>>>>>....<<<<<<<..........>>>>>>>
......>>...>>>>>>>>>>.>>....<..<<.<.<<<<.<<<..<<<<
<<<<<<<<<...<.<<<<....<<<<..>>>>.>>>>.>..>>>>>>>>>
>>>>..>>>.>>>>..>.>>...>.....<<<<<<<<<....>>>>>>>>
>............
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB1n33 Selection of tRNA by the Ribosome Requires a Transition from an Open to a Closed Form
Resolution3.35 Å
Binding residue
(original residue number in PDB)		K49 I50 L51 K61 Q63 R64 K68 K71 R72 R74 F81
Binding residue
(residue number reindexed from 1)		K34 I35 L36 K46 Q48 R49 K53 K56 R57 R59 F66
Binding affinityPDBbind-CN: Kd=86uM
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0003735 structural constituent of ribosome
GO:0019843 rRNA binding
GO:0070181 small ribosomal subunit rRNA binding
Biological Process
GO:0006412 translation
Cellular Component
GO:0005840 ribosome
GO:1990904 ribonucleoprotein complex

View graph for
Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1n33, PDBe:1n33, PDBj:1n33
PDBsum1n33
PubMed12464183
UniProtQ5SLQ0|RS18_THET8 Small ribosomal subunit protein bS18 (Gene Name=rpsR)

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