Structure of PDB 6tnn Chain I Binding Site BS01

Receptor Information
>6tnn Chain I (length=134) Species: 224308 (Bacillus subtilis subsp. subtilis str. 168) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
MLEFDTIKDSKQLNGLALAYIGNAIFEVYVRHHLLKQGFTKPNDLHKKSS
RIVSAKSQAEILFFLQNQSFFTEEEEAVLKRGRNAKSGTTPKNTDVQTYR
YSTAFEALLGYLFLEKKEERLSQLVAEAIQFGTS
Ligand information
>6tnn Chain U (length=2930) [Search RNA sequence] [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
acgguuaaguuagaaagggcgcacgguggaugccuuggcacuaggagccg
augaaggacgggacgaacaccgauaugcuucggggagcuguaagcaagcu
uugauccggagauuuccgaauggggaaacccaccacucguaauggagugg
uauccauaucugaauucauaggauaugagaaggcagacccggggaacuga
aacaucuaaguacccggaggaagagaaagcaaaugcgauucccugaguag
cggcgagcgaaacgggaucagcccaaaccaagaggcuugccucuuggggu
uguaggacacucuguacggaguuacaaaggaacgagguagaugaagaggu
cuggaaaggcccgccauaggagguaacagcccuguagucaaaacuucguu
cucuccugaguggauccugaguacggcggaacacgugaaauuccgucgga
auccgggaggaccaucucccaaggcuaaauacucccuagugaccgauagu
gaaccaguaccgugagggaaaggugaaaagcaccccggaaggggagugaa
agagauccugaaaccgugugccuacaaguagucagagcccguuaacgggu
gauggcgugccuuuuguagaaugaaccggcgaguuacgaucccgugcaag
guuaagcagaagaugcggagccgcagcgaaagcgagucugaauagggcgc
augaguacguggucguagacccgaaaccaggugaucuacccauguccagg
gugaaguucagguaacacugaauggaggcccgaacccacgcacguugaaa
agugcggggaugagguguggguaggggugaaaugccaaucgaaccuggag
auagcugguucucuccgaaauagcuuuagggcuagccucaagguaagagu
cuuggagguagagcacugauuggacuaggggccccuaccggguuaccgaa
uucagucaaacuccgaaugccaaugacuuauccuugggagucagacugcg
agugauaagauccguagucgaaagggaaacagcccagaccgccagcuaag
gucccaaaguauacguuaaguggaaaaggauguggaguugcuuagacaac
caggauguuggcuuagaagcagccaccauuuaaagagugcguaauagcuc
acuggucgagugacucugcgccgaaaauguaccggggcuaaacguaucac
cgaagcugcggacuguucuucgaacagugguaggagagcguucuaagggc
ugugaagccagaccggaaggacugguggagcgcuuagaagugagaaugcc
gguaugaguagcgaaagaggggugagaauccccuccaccgaaugccuaag
guuuccugaggaaggcucguccgcucaggguuagucgggaccuaagccga
ggccgaaaggcguaggcgauggacaacagguugauauuccuguaccaccu
ccucaccauuugagcaauggggggacgcaggaggauaggguaagcgcggu
auuggauauccgcguccaagcaguuaggcugggaaauaggcaaauccguu
ucccauaaggcugagcugugauggcgagcgaaauauaguagcgaaguucc
ugauuccacacugccaagaaaagccucuagcgaggugagaggugcccgua
ccgcaaaccgacacagguaggcgaggagagaauccuaaggugaucgagag
aacucucguuaaggaacucggcaaaaugaccccguaacuucgggagaagg
ggugcucuguuagggugcaagcccgagagagccgcagugaauaggcccag
gcgacuguuuagcaaaaacacaggucucugcgaagccguaaggcgaagua
uaggggcugacgccugcccggugcuggaagguuaagaggagcgcuuagcg
uaagcgaaggugcgaauugaagccccaguaaacggcggccguaacuauaa
cgguccuaagguagcgaaauuccuugucggguaaguuccgacccgcacga
aaggcgcaacgaucugggcacugucucaacgagagacucggugaaauuau
aguaccugugaagaugcagguuacccgcgacaggacggaaagaccccgug
gagcuuuacugcagccugauauugaauguugguacagcuuguacaggaua
gguaggagccuuggaaaccggagcgccagcuuugguggaggcaucggugg
gauacuacccuggcuguauugaccuucuaacccgccgcccuuaucgggcg
gggagacagugucaggugggcaguuugacuggggcggucgccuccuaaaa
gguaacggaggcgcccaaagguucccucagaaugguuggaaaucauucgc
agaguguaaaggcacaagggagcuugacugcgagaccuacaagucgagca
gggacgaaagucgggcuuagugauccggugguuccgcauggaagggccau
cgcucaacggauaaaagcuaccccggggauaacaggcuuaucucccccaa
gaguccacaucgacggggagguuuggcaccucgaugucggcucaucgcau
ccuggggcuguagucggucccaaggguugggcuguucgcccauuaaagcg
guacgcgagcuggguucagaacgucgugagacaguucggucccuauccgu
cgcgggcgcaggaaauuugagaggagcuguccuuaguacgagaggaccgg
gauggacgcaccgcugguguaccaguuguucugccaagggcaucgcuggg
uagcuaugugcggacgggauaagugcugaaagcaucuaagcaugaagccc
cccucaagaugagauuucccauuccgcaaggaaguaagaucccugaaaga
ugaucagguugauaggucugagguggaaguguggcgacacauggagcuga
cagauacuaaucgaucgaggacuuaaccau
..<<<<<<<<......<<<<<<<<<<<....{[[..[[<<<<<<<[[<<.
.....<<<<<<.....((.>>>.....<<<<<<<..<<.))......>>.
....>>>>>>>...>>>....<<<....>>><<<<<<<......>>>>>>
>.<<<<<<<<<.........>>>>>>>.>>.>>....<<<<<<.....<<
....>>......>>>>>.>.........<<....>>...<<<<......<
<.....>>.....>>>>...(((....<<<<<<<<....>>>>>>>>...
...<<<<<<<<<.....<<<<.......<<<<<<<<<<.<<<.....<<<
<......>>>>.((......<<<.....))>>>...>>>...>>>>>>>>
>>>>>>.>>>>>..>>>>.....<<<<<<<<.........>>>>>>>>..
....<<<<<..<<<<>>>>>..)))......]].>>>>>>>.]]......
.........<<....>>....]].........<<<<....>>>>......
.......}....>>>>>>>>>>>.......<<<<..<<<<......>>>>
..>>>>...<.<........>.>.<<<<<<....<<<<<<<.<<<<<..<
<<...<<<.....>>>...>>>...<<....>>..<<<<.....>>>>..
....>>>>>.>>>>>>>..<<.<..<<<<<<<.....<<<<<<<<<..<<
<....<<<<<<......>>>>>>.....>>>...<<<.<<<<<.......
.>>>>>>>>....>>>>>>>>>...<<<.....>>>......>>>>>>..
.>..>.>>..<<<<<<....<<<<<....>>>>><<<<<<<<<...<<<<
<<<<<.....<<<...<<<<<<<<......<<<<.....>>>>.......
>>>>>>>>..>>.>.....>>>>.>>>>>..>>>>>>>.>>..<<<<<<<
.<<......>>.>>>>>>>....<<<......>>>...<<<<.<<<...<
<<(((.....<<<<<<...........<<..<<<<<<<<<........<<
<<<.<<.....................>>.........<<......>>..
.>>>>>....>>>>>>>>>.>>...........))).....>>>>>>.>>
>...>>>>>>><<<<<<<...>>>>>>>....>>>>>><.<<<<<<<.<<
......<<<<<.<<....>>.>>>>>...>>.>>>>>>>..>.....>>>
>>><......<<....<<<<<<.......>>>>>><<<<....<<<<<.<
<<..<<<<<<...<<.....>>.>>>>>>....((<<<<.<<...<<<..
.<<<....>>>...>>>...>>...<<<<<........>>>>>))<<<<<
.<<<<<<......<<...<<<<....<<<<..<<<..<<<.<.<<<.<..
...{....>.>>>.<<..<......<<.<.<<<<<<<.<<.....>>>>>
>>>>.....>>>......>...>><..<<...........>>...>>.>>
>...>>>...>>>>.........>>>>..>>..>>>>>>>>>>>>>>>.>
>>.....<<......>>>>>>>.<<<<.....>>>>..>>>>..<<<<..
..<<<<<<<<.<<<........<.....<<<<<....<<..>>.....>>
>>><<<<<....<<<<....>>>>...>>>>>............<<<<<<
<<<..<<<.........>>>..<<<<<<<.....<<<....>>>......
.>>>>>>>..<<<<.<<<..<<<<<<<..<<<...<<...<<<<<..<<.
...>>...>>>>>...>>...>>>>>>>>..>>>>><<<<<<.......>
>>>>>........<...........<<<<<.......>>>>>.....>..
..>>>>...>>.>>>>>>>..>.>>>.>>>>>>>>.>>>>>>.....>..
...<<<<<........>>>>>..<<<<<<<<.(((.[[......<<<<.[
[<<<<..<<<<<.<<<<<<<<<.<<<.<<<..<<<<<<............
<<<<<..<<...............................>>........
....>>>>>..>.>>>>>..>>>.>>>....<<.<<<<<.......>>>>
>>>.....>>>>>>>>>..>>>>>..<<<<.....>>>><<<<<<.....
......>>>>>>..<<...<<<<<<<...<<<<<<.......>>>>>>..
...<<.[.(((>>....>>>>>>>...<<<<..<<<......>>>..>>>
>.<<<....>>>.>>)))]......<<<<<<<.((..>>>>..))>>>>>
>>.............>>>>..]]>>>>.......<<<<...<<<<<<...
<<.......>>...>>>>>>....>>>.>.......<<<<<.<<<<<<..
<<<<<<<<<......>>>>>>..>>>.<<<<<.....>>>>>.....>>>
>>..>...>>>.>>....<<<<<<<....>>>.>>>>....]]..)))>>
>>>>>>....<<<<<<<...<<<<..<<<<<<<...............>>
>>>>>.<<<<<...<<<<...<<<<<<<<<<<.}..>>>>>>..>>>>>.
..>>>>.>>>>>...<<<....<<<<<...........>>>>>....>>>
.>>>>.......>>>>>>>..<<<<....>>>>....<<<<<<<<<....
...>>>>>....<<<<<<<<.<<<....<<<<<....>>>>>...>>>..
>>>>>.>>>...>>>>....>>>>>>>>..
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB6tnn Structures of B. subtilis Maturation RNases Captured on 50S Ribosome with Pre-rRNAs.
Resolution3.07 Å
Binding residue
(original residue number in PDB)
N43 H46 S50 F63 N67 R83 N84 K86 K92 V96 Q97 R100
Binding residue
(residue number reindexed from 1)
N43 H46 S50 F63 N67 R83 N84 K86 K92 V96 Q97 R100
Enzymatic activity
Enzyme Commision number 3.1.26.-
Gene Ontology
Molecular Function
GO:0004519 endonuclease activity
GO:0004525 ribonuclease III activity
GO:0004540 RNA nuclease activity
GO:0019843 rRNA binding
Biological Process
GO:0006364 rRNA processing
GO:0006396 RNA processing
GO:0042254 ribosome biogenesis
Cellular Component
GO:0005737 cytoplasm

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Molecular Function

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Biological Process

View graph for
Cellular Component
External links
PDB RCSB:6tnn, PDBe:6tnn, PDBj:6tnn
PDBsum6tnn
PubMed32991829
UniProtO31418|MRNC_BACSU Mini-ribonuclease 3 (Gene Name=mrnC)

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