Structure of PDB 8ekb Chain 20 Binding Site BS01

Receptor Information
>8ekb Chain 20 (length=77) Species: 300852 (Thermus thermophilus HB8) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
GSTRNGRDSQAKRLGVKRYEGQVVRAGNILVRQRGTRFKPGKNVGMGRDF
TLFALVDGVVEFQDRGRLGRYVHVRPL
Ligand information
>8ekb Chain 2A (length=2800) [Search RNA sequence] [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
agaugguaagggcccacgguggaugccucggcacccgagccgaugaagga
cguggcuaccugcgauaagccagggggagccgguagcgggcguggauccc
uggauguccgaaugggggaacccggccggcgggaacgccggucaccgcgc
ugcgcggggggaaccuggggaacugaaacaucucaguacccagaggagag
gaaagagaaaucgacucccugaguagcggcgagcgaaaggggaccagccu
aaaccguccggcuuguccgggcggggucguggggcccucggacaccgaau
ccccagccuagccgaagcuguugggaagcagcgccagagagggugaaagc
cccguaggcgaaagguggggggauaggugaggguacccgaguaccccgug
guucguggagccaugggggaaucugggcggaccaccgccuaaggcuaagu
acuccgggugaccgauagcgcaccaguaccgugagggaaaggugaaaaga
accccgggaggggagugaaauagagccugaaaccgugggcuuacaagcag
ucacggccccggggguuguggcgugccuauugaagcaugagccggcgacu
cacggucgugggcgagcuuaagccguugaggcggaggcguagggaaaccg
aguccgaacagggcgcaagcgcgcaaaguccgcggccguggacccgaaac
cgggcgagcuagcccuggccagggugaagcuggggugagacccaguggag
gcccgaaccggugggggaugcaaaccccucggaugagcuggggcuaggag
ugaaaagcuaaccgagcccggagauagcugguucuccccgaaaugacuuu
agggucagccucaggcgcugacuggggccuguagagcacugauagggcua
gggggcccaccagccuaccaaacccugucaaacuccgaagggucccaggu
ggagccugggagugagggcgcgagcgauaacguccgcguccgagcgcggg
aacaaccgagaccgccagcuaaggcccccaagucugggcuaagugguaaa
ggauguggcgccgcguggcgccgcgccgaaaaugaucggggcuuaagccc
agcgccgaagcugcgggucuggggccccaggcgguaggggagcguucccg
augccgaugaaggccgacccgcgagggcggcuggagguaagggaagugcg
aaugccggcaugaguaacgauaaagagggugagaaucccucucgccguaa
gcccaaggguuccuacgcaauggucgucagcguaggguuaggcgggaccu
aaggugaagccgaaaggcguagccgaagggcagccgguuaauauuccggc
ccuucccgcaggugcgauggggggacgcucuaggcuagggggaccggagc
cauggacgagcccggccagaagcgcagggugggagguaggcaaauccgcc
ucccaacaagcucugcgugguggggaagcccgcgggugacaaccccccga
agccagggagccaagaaaagccucuaagcacaaccugcgggaacccguac
cgcaaaccgacacaggugggcgggugcaagagcacucaggcgcgcgggag
aacccucgccaaggaacucugcaaguuggccccguaacuucgggagaagg
ggugcucccuggggugaugagccccggggagccgcagugaacaggcucug
gcgacuguuuaccaaaaacacagcucucugcgaacucguaagaggaggua
uagggagcgacgcuugcccggugccggaaggucaaggggaggggugcaag
ccccgaaccgaagccccggugaacggcggccguaacuauaacgguccuaa
gguagcgaaauuccuugucggguaaguuccgaccugcacgaaaagcguaa
cgaccggagcgcugucucggcgagggacccggugaaauugaacuggccgu
gaagaugcggccuacccguggcaggacgaaaagaccccguggagcuuuac
ugcagccugguguuggcucuuggucgcgccugcguaggauaggugggagc
cugugaacccccgccuccgggugggggggaggcgccggugaaauaccacc
cuggcgcggcugggggccuaacccucggauggggggacagcgcuuggcgg
gcaguuugacuggggcggucgccuccuaaaagguaacggaggcgcccaaa
gguccccucaggcgggacggaaauccgccggagagcgcaaggguagaagg
gggccugacugcgaggccugcaagccgagcaggggcgaaagccgggccua
gugaaccgguggucccguguggaagggccaucgaucaacggauaaaaguu
accccggggauaacaggcugaucucccccgagcguccacagcggcgggga
gguuuggcaccucgaugucggcucgucgcauccuggggcugaagaagguc
ccaaggguugggcuguucgcccauuaaagcggcacgcgagcuggguucag
aacgucgugagacaguucggucucuauccgccacgggcgcaggaggcuug
aggggggcucuuccuaguacgagaggaccggaagggacgcaccucugguu
ucccagcugucccuccaggggcauaagcuggguagccaugugcggaaggg
auaaccgcugaaagcaucuaagcgggaagcccgccccaagaugaggccuc
ccggcagccgguaaggacccgggaagaccacccgguggaugggccggggg
uguaagcgccgcgaggcguugagccgaccggucccaaucguccgaggucu
<<<......<<<<<<<<<<<.....<<..<<<<<<<<<<<<......<<<
<<<.((..((.>>>.....<<<<<<<..<<<))..)).>>>.....>>>>
>>>...>>>....<<<....>>><<<<<<<<....>>>>>>>>.<<<<<<
.>>>>>>.>>...<<<<<<.....<<....>>......>>>>>.>.....
....<<....>>...<<<<<.....<<.....>>....>>>>>...<<<.
...<<<<<<<<.....>>>>>>>>......<<<<<<<<<....<<<...<
<<<<.<<<<.<<<...<<<<<......>>>>>((......<<<.....))
>>>...>>>...>>>>..>>>>>..>>>>>>>>>.>>>.....<<<<<<<
<<.......>>>>>>>>>......<<<<<..((((>>>>>..>>>.....
.>>.>>>>>>.>>...............<<....>>....>>........
.<<<<....>>>>..................>>>>>>>>>>>.......<
<<<<<<<<<<.>>>>>>>>>>>...<............>.<<<<<<....
<<<<<<<<<<<<<..<<<...<<<.....>>>...>>>...<<....>>.
.<<<<.....>>>>....<<..>>...>>>>>>>>>>>>>..<<.<...<
<<<<<.....<<<<<<<<<..<<<....<<<<<<......>>>>>>....
.>>>...<<<<.<<<<........>>>>>>>>....>>>>>>>>>...<<
<.....>>>......>>>>>>......>.>>..<<<<<<....<<<<<..
..>>>>><<<<<<<<<.....<<<<<<<<<...<<<...<<<<<<<<...
<<<<..........>>.>>...>>>>>>>>..>>.>...>>>>>>>>>..
...>>>>>>>.>>..<<<<<<<.<<......>>.>>>>>>>.....<<<.
.....>>>...<<<<.<<<...<<<(((.....<<<<<<...........
<<..<<<<<<<<<..>>>>>>>>>.>>..........)))......>>>>
>>.>>>...>>>>>>><<<<<<<<>>>>>>>>....>>>>>><.<<<<<.
..<<<......<<<<<.<<<....>>>>>>>>...>>>..>>>>>..>..
...>>>>>><......<<.....<<<<<<.......>>>>>><<<<....
<<<<<.<<...<<<<<<...<<.....>>.>>>>>>....((<<<<.<<.
..<<<...<<<....>>>...>>>...>>...<<<<<........>>>>>
))<<<<<<<<<<<<<...<<<<....<<<<<.<<<..<<<<<.<<<<.<<
..[[[[...>>>>>><<<...<<<<<<<<<<<<<<<<.<<.....>>>>>
>>>>.....>>>>>>>>>..>>><...<<<<..>>>>.....>>>>>>..
.>>>..>>>>>.........>>>>...>>...>>>>>>>>>>>>>>>..>
>.....<<......>>>>>>>.<<<<<....>>>>>..>>>>..<<<<..
..<<<<<<<<.<<.........<.....<<<<<.....<..>......>>
>>><<<<<<<<<<<<.....>>>>>>>>>>>>............<<<<<<
<<<..<<<.........>>>..<<<<<<<.....<<<....>>>......
.>>>>>>>.<<<<<.<<<..<<<<<<<..<<<...<<...<<<<<....>
>>>>...>>...>>>>>>>>..>>>>><<<<<<.......>>>>>>....
....<...........<<<<<<.....>>>>>>.....>....>>>>>..
>>.>>>>>>>..>..>>.>>>>>>>>.>>>>>>.....>.....<<<<<.
.......>>>>>..<<<<<<<<.<<<.........<<<<.<<<<<<..<<
<<<.<<<.<<<<<.<<<<<<<<<<<<<<<<...........<<<<<..<<
<......<<<<<<<<....>>>>>>>>...>>>............>>>>>
..>>>>>>>>>>>>>>>>...<<<<<....>>>>>....>>>>>.>>>..
>>>>>..<<<<.....>>>><<<<<<...........>>>>>>..<<...
<<<<<<<...<<<<<<.......>>>>>>.....<<...(((>>....>>
>>>>>...<<<<..<<<......>>>..>>>>.<<<....>>>.>>))).
......<<<<<<<.<<..))))..>>>>>>>>>.............>>>>
..>>>>>>.......<<<<.<.<<<<<<...<<.......>>...>>>>>
>...>>>>.>.......<<<<<.<<<<<<..<<<<<<<<<......>>>>
>>>..>>.<<<<<.....>>>>>.....>>>>>..>...>>>.>>....<
<<<<<<....>>>.>>>>........>>>>>>>>>>>....<<<<<<<..
.<<<<..<<<<<<<...............>>>>>>>.<<<<<...<<<<.
..<<<<<<<<<<<]]]]>>>>>>...>>>>>...>>>>.>>>>>...<<<
....<<<<<...........>>>>>....>>>.>>>>.......>>>>>>
>.<<<.>>>.....<<<<<<<<<.......>>>>>....<<<<<<<<.<<
<....<<<<<....>>>>>...>>>..>>>>>.>>>...>>>>....>>>
Receptor-Ligand Complex Structure
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PDB8ekb Insights into the molecular mechanism of translation inhibition by the ribosome-targeting antibiotic thermorubin.
Resolution2.7 Å
Binding residue
(original residue number in PDB)
S9 N12 R14 D15 S16 Q17 A18 K19 R20 K24 Y26 E27 Q29 A33 G34 N35 I36 R39 R41 G42 T43 R44 G54 R55 D56 F57 F60 L62 F69 R74 R77
Binding residue
(residue number reindexed from 1)
S2 N5 R7 D8 S9 Q10 A11 K12 R13 K17 Y19 E20 Q22 A26 G27 N28 I29 R32 R34 G35 T36 R37 G47 R48 D49 F50 F53 L55 F62 R67 R70
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0003735 structural constituent of ribosome
Biological Process
GO:0006412 translation
Cellular Component
GO:0005840 ribosome
GO:0022625 cytosolic large ribosomal subunit
GO:1990904 ribonucleoprotein complex

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Molecular Function

View graph for
Biological Process

View graph for
Cellular Component
External links
PDB RCSB:8ekb, PDBe:8ekb, PDBj:8ekb
PDBsum8ekb
PubMed36546783
UniProtP60493|RL27_THET8 Large ribosomal subunit protein bL27 (Gene Name=rpmA)

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