Structure of PDB 7ac7 Chain O Binding Site BS01

Receptor Information

>7ac7 Chain O (length=115) Species: 83333 (Escherichia coli K-12)

KKSARIRRATRARRKLQELGATRLVVHRTPRHIYAQVIAPNGSEVLVAAS
TVEKAIAEQLKYTGNKDAAAAVGKAVAERALEKGIKDVSFDRSGFQYHGR
VQALADAAREAGLQF

Ligand information

>7ac7 Chain 1 (length=2903)

gguuaagcgacuaagcguacacgguggaugcccuggcagucagaggcgau
gaaggacgugcuaaucugcgauaagcgucgguaaggugauaugaaccguu
auaaccggcgauuuccgaauggggaaacccaguguguuucgacacacuau
cauuaacugaauccauagguuaaugaggcgaaccgggggaacugaaacau
cuaaguaccccgaggaaaagaaaucaaccgagauucccccaguagcggcg
agcgaacggggagcagcccagagccugaaucaguguguguguuaguggaa
gcgucuggaaaggcgcgcgauacagggugacagccccguacacaaaaaug
cacaugcugugagcucgaugaguagggcgggacacgugguauccugucug
aauauggggggaccauccuccaaggcuaaauacuccugacugaccgauag
ugaaccaguaccgugagggaaaggcgaaaagaaccccggcgaggggagug
aaaaagaaccugaaaccguguacguacaagcagugggagcacgcuuaggc
gugugacugcguaccuuuuguauaaugggucagcgacuuauauucuguag
caagguuaaccgaauaggggagccgaagggaaaccgagucuuaacugggc
guuaaguugcaggguauagacccgaaacccggugaucuagccaugggcag
guugaagguuggguaacacuaacuggaggaccgaaccgacuaauguugaa
aaauuagcggaugacuuguggcugggggugaaaggccaaucaaaccggga
gauagcugguucuccccgaaagcuauuuagguagcgccucgugaauucau
cuccggggguagagcacuguuucggcaagggggucaacccgacuuaccaa
cccgaugcaaacugcgaauaccggagaauguuaucacgggagacacacgg
cgggugcuaacguccgucgugaagagggaaacaacccagaccgccagcua
aggucccaaagucaugguuaagugggaaacgaugugggaaggcccagaca
gccaggauguuggcuuagaagcagccaucauuuaaagaaagcguaauagc
ucacuggucgagucggccugcgcggaagauguaacggggcuaaaccaugc
accgaagcugcggcagcgacgcuuaugcguuguuggguaggggagcguuc
uguaagccugcgaaggugugcugugaggcaugcuggagguaucagaagug
cgaaugcugacauaaguaacgauaaagcgggugaaaagcccgcucgccgg
aagaccaaggguuccuguccaacguuaaucggggcagggugagucgaccc
cuaaggcgaggccgaaaggcguagucgaugggaaacagguuaauauuccu
guacuugguguuacugcgaaggggggacggagaaggcuauguuggccggg
cgacgguugucccgguuuaagcguguaggcugguuuuccaggcaaauccg
gaaaaucaaggcugaggcgugaugacgaggcacuacggugcugaagcaac
aaaugcccugcuuccaggaaaagccucuaagcaucagguaacaucaaauc
guaccccaaaccgacacagguggucagguagagaauaccaaggcgcuuga
gagaacucgggugaaggaacuaggcaaaauggugccguaacuucgggaga
aggcacgcugauauguaggugaggucccucgcggauggagcugaaaucag
ucgaagauaccagcuggcugcaacuguuuauuaaaaacacagcacugugc
aaacacgaaaguggacguauacggugugacgccugcccggugccggaagg
uuaauugaugggguuagcgcaagcgaagcucuugaucgaagccccgguaa
acggcggccguaacuauaacgguccuaagguagcgaaauuccuugucggg
uaaguuccgaccugcacgaauggcguaaugauggccaggcugucuccacc
cgagacucagugaaauugaacucgcugugaagaugcaguguacccgcggc
aagacggaaagaccccgugaaccuuuacuauagcuugacacugaacauug
agccuugauguguaggauaggugggaggcuuugaaguguggacgccaguc
ugcauggagccgaccuugaaauaccacccuuuaauguuugauguucuaac
guugacccguaauccggguugcggacagugucugguggguaguuugacug
gggcggucuccuccuaaagaguaacggaggagcacgaagguuggcuaauc
cuggucggacaucaggagguuagugcaauggcauaagccagcuugacugc
gagcgugacggcgcgagcaggugcgaaagcaggucauagugauccggugg
uucugaauggaagggccaucgcucaacggauaaaagguacuccggggaua
acaggcugauaccgcccaagaguucauaucgacggcgguguuuggcaccu
cgaugucggcucaucacauccuggggcugaaguaggucccaaggguaugg
cuguucgccauuuaaagugguacgcgagcuggguuuagaacgucgugaga
caguucggucccuaucugccgugggcgcuggagaacugaggggggcugcu
ccuaguacgagaggaccggaguggacgcaucacugguguucggguuguca
ugccaauggcacugcccgguagcuaaaugcggaagagauaagugcugaaa
gcaucuaagcacgaaacuugccccgagaugaguucucccugacccuuuaa
ggguccugaaggaacguugaagacgacgacguugauaggccgggugugua
agcgcagcgaugcguugagcuaaccgguacuaaugaaccgugaggcuuaa
ccu

<<<<<<<<......<<<<<<<<<<<....{[[..[[<<<<<<<[[<<...
...<<<<<<.[..(((.>>>.....<<<<<<<..<<<)))..].>>>...
...>>>>>>>...>>>....<<<....>>><<<<<<<....>>>>>>>.<
<<<<<<<<.........>>>>>>>>>.>>...<<<<<<.....<<....>
>......>>>>>.>.........<<....>>..<<<<<<.....<<....
.>>....>>>>>>..(((..<<<<.......<..<<<<<<<<<.<<<...
<<<<<......>>>>>((......<<<.....))>>>...>>>...>>>>
>>>>>..>....>>>>........<<<<<<<<.........>>>>>>>>.
.....<<<<<..<<<<>>>>>..)))......]].>>>>>>>.]].....
..........<<....>>....]].........<<<<.....>>>>....
.........}....>>>>>>>>>>>.......<<<<..<<<<<<....>>
>>>>..>>>>...<.<........>.>.<<<<<<....<<<<<<<<<<<<
<..<<<...<<.....>>...>>>...<<....>>..<<<<.....>>>>
.....>>>>>>>>>>>>>..<<.<..<<<<<<<.....<<<<<<<<<..<
<<....<<<<<........>>>>>.....>>>...<<<.<<<<<......
..>>>>>>>>....>>>>>>>>>...<<<.....>>>......>>>>>>.
..>..>.>>..<<<<<<....<<<<<....>>>>>.<<<<<<<<...<<<
<<<<<<.....<<<...<<<.<<<<...<<.<<<<.....>>>>..>>..
.>>>>.>>>..>>.>.....>>>>>>.>>>...>>>>>>>.>...<<<<<
<<<<<......>>>>>>>>>>....<<<......>>>...<<<<.<<<..
.<<<(((.....<<<<<<...........<<..<<<<<..<<........
<<<<<..................................<<<......>>
>..>>>>>....>>..>>>>>.>>...........))).....>>>>>>.
>>>...>>>>>>><<<<<<<........>>>>>>>....>>>>>><.<<<
<<...<<<......<<<<<<<<....>>>>>>>>...>>>..>>>>>..>
.....>>>>>><......<<.....<<<<<<.......>>>>>><<<<..
..<<<<<.<<...<<<<<<...<<.....>>.>>>>>>....((<<<.<<
<.<.<<<...<<<....>>>...>>>..>>>>..<<<<<........>>>
>>))<<<<<<<<<<<<<...<<<<....<<<<..<<<..<<<<<<<<<<<
....(((...>>>>>><<..<<<<...<<<<<<<<<<<<.<<.....>>>
>>>>>>>..>>>>...>>>>...>><..<<<<<....>>>>>...>>>>>
>...>>>...>>>>.........>>>>...>>....>>>>>>>>>>>.>>
>..>>.....<<......>>>>>>>.<<<<.....>>>>..>>>>..<<<
<....<<<<<<<<.<<...............<<<<<....<<..>>....
.>>>>><<<<<<.....<<<...<<<<.....>>>>...>>>...>>>>>
>............<<<<<<<<<..<<<.........>>>..<<<<<<<..
...<<<....>>>.......>>>>>>>.<<<<..<<<..<<<<<<<..<<
<<.......<<<<<<.<<....>>..>>>>>>.......>>>>>>>>>..
>>>>>.<<<<<.......>>>>>.........<...........<<<<<<
.....>>>>>>.....>.....>>>>..>>.>>>>>>>.....>>.>>>>
>>>>.>>>>>>.....>.....<<<<<........>>>>>..<<<<<<<<
.(((.[[......<<<<.[[<<<<..<<<<..<<<.<<<<<.<<<<<<.<
<<<.<<<............<<<<<...<........<.<...........
.>.>.....>.............>>>>.>..>>>.>>>>.>>>>>>...<
<<.<<<<<<.....>>>>>>>>>....>>>>>.>>>...>>>>..<<<<.
....>>>><<<<<<...........>>>>>>..<<...<<<<<<<...<<
<<<<.......>>>>>>.....<<...(((>>....>>>>>>>...<<<<
..<<<<....>>>>..>>>>.<<<....>>>.>>))).......<<<<<<
<.((..>>>>..))>>>>>>>.............>>>>..]]>>>>....
...<<<<...<<<<<<...<<.......>>...>>>>>>....>>>.>..
.....<<<<<.<<<<<<..<<<<<<<<<......>>>>>>..>>>.<<<<
<.....>>>>>.....>>>>>..>...>>>.>>....<<<<<<<....>>
>.>>>>....]]..)))>>>>>>>>....<<<<<<<...<<<<...<<<<
<<...............>>>>>>..<<<<<...<<<<...<<<<<<<<<<
<))).>>>>>>..>>>>>...>>>>.>>>>>...<<<....<<<<<....
.......>>>>>....>>>.>>>>.......>>>>>>>..<<<<<.....
>>>>><....<<..<<<<<.......>>>>>....<<<<<<<<..<<...
.<<<<<....>>>>>...>>...>>>>>.>>>.....>>..>..>>>>>>
>>.

Receptor-Ligand Complex Structure

Structure summary

• PDB: 7ac7 Structures of tmRNA and SmpB as they transit through the ribosome.
• Resolution: 3.08 Å
• Binding residue (original residue number in PDB): R9 R10 T12 R13 R16 K17 L21 S91 R94 Q98 Y99 R111 F117
• Binding residue (residue number reindexed from 1): R7 R8 T10 R11 R14 K15 L19 S89 R92 Q96 Y97 R109 F115

Gene Ontology

Molecular Function

• GO:0003735 structural constituent of ribosome
• GO:0008097 5S rRNA binding
• GO:0019843 rRNA binding

Biological Process

• GO:0002181 cytoplasmic translation
• GO:0006412 translation

Cellular Component

• GO:0005737 cytoplasm
• GO:0005829 cytosol
• GO:0005840 ribosome
• GO:0022625 cytosolic large ribosomal subunit
• GO:1990904 ribonucleoprotein complex

External links

• PDB: RCSB:7ac7, PDBe:7ac7, PDBj:7ac7
• PDBsum: 7ac7
• PubMed: 34389707
• UniProt: P0C018|RL18_ECOLI Large ribosomal subunit protein uL18 (Gene Name=rplR)