Structure of PDB 7ac7 Chain u Binding Site BS01

Receptor Information
>7ac7 Chain u (length=81) Species: 83333 (Escherichia coli K-12) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
MVTIRLARHGAKKRPFYQVVVADSRNARNGRFIERVGFFNPIASEKEEGT
RLDLDRIAHWVGQGATISDRVAALIKEVNKA
Ligand information
>7ac7 Chain 2 (length=1540) [Search RNA sequence] [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
aaauugaagaguuugaucauggcucagauugaacgcuggcggcaggccua
acacaugcaagucgaacgguaacaggaagaagcuugcuucuuugcugacg
aguggcggacgggugaguaaugucugggaaacugccugauggagggggau
aacuacuggaaacgguagcuaauaccgcauaacgucgcaagaccaaagag
ggggaccuucgggccucuugccaucggaugugcccagaugggauuagcua
guaggugggguaacggcucaccuaggcgacgaucccuagcuggucugaga
ggaugaccagccacacuggaacugagacacgguccagacuccuacgggag
gcagcaguggggaauauugcacaaugggcgcaagccugaugcagccaugc
cgcguguaugaagaaggccuucggguuguaaaguacuuucagcggggagg
aagggaguaaaguuaauaccuuugcucauugacguuacccgcagaagaag
caccggcuaacuccgugccagcagccgcgguaauacggagggugcaagcg
uuaaucggaauuacugggcguaaagcgcacgcaggcgguuuguuaaguca
gaugugaaauccccgggcucaaccugggaacugcaucugauacuggcaag
cuugagucucguagagggggguagaauuccagguguagcggugaaaugcg
uagagaucuggaggaauaccgguggcgaaggcggcccccuggacgaagac
ugacgcucaggugcgaaagcguggggagcaaacaggauuagauacccugg
uaguccacgccguaaacgaugucgacuuggagguugugcccuugaggcgu
ggcuuccggagcuaacgcguuaagucgaccgccuggggaguacggccgca
agguuaaaacucaaaugaauugacgggggcccgcacaagcgguggagcau
gugguuuaauucgaugcaacgcgaagaaccuuaccuggucuugacaucca
cggaaguuuucagagaugagaaugugccuucgggaaccgugagacaggug
cugcauggcugucgucagcucguguugugaaauguuggguuaagucccgc
aacgagcgcaacccuuauccuuuguugccagcgguccggccgggaacuca
aaggagacugccagugauaaacuggaggaagguggggaugacgucaaguc
aucauggcccuuacgaccagggcuacacacgugcuacaauggcgcauaca
aagagaagcgaccucgcgagagcaagcggaccucauaaagugcgucguag
uccggauuggagucugcaacucgacuccaugaagucggaaucgcuaguaa
ucguggaucagaaugccacggugaauacguucccgggccuuguacacacc
gcccgucacaccaugggaguggguugcaaaagaaguagguagcuuaaccu
ucgggagggcgcuuaccacuuugugauucaugacuggggugaagucguaa
caagguaaccguaggggaaccugcgguuggaucaccuccu
........<<<<....((((.>>>>.<<<<.<<<<<..<<<<<<<<....
.<<<.<<<..<<<..<<.<...<<<.<<<<........>.>>>.>>>.>.
.>>>>>......<<.......<<<<<<<..<<...<<<<<<<.<.<<..<
..<<<<<......>>>>>.....>>>.>.....<<<....>>>....<<<
<<<..<<....>>>>>>>>.>>>>>>>..>>.>>>>>>><<<....<<<.
.<<<<<<<.........>>>>>>>>>>......>>>..<<<<<<<<....
>>>>...>>>>.>>.<<<<.<<.........>>>>>>.<<<<<..>>>>>
...>>>>>>.........<<<...<<<<<....>>>>.>>>>..>>.>>>
>>>..<<<<......<<<<<..>>>>>.....>>>>...<.<<<<<....
..<.<<<<<<<<.......>>>>>>>>.>........>>>>>....>..<
<<<<(((...<<<<<.....<<.)))>>.......>>>>>>>>>>..>>>
>>>>>>..........<<<((.....<<<<...<<<.<<<<<<<.<<<<<
<<<<<......<<<<<<.....>>>>>>....>>>>>>>..>>>>>>>>>
>...<<<<<<<<...<<<<<<<....<<<<<<<<...<<<......>>>.
.....>>>>>>>>...........<<....>>.>>>>>>>..>>>.>>>>
>...>>>...>>>>....<<<<<<...<<...<<<<.<.....>.>>>>.
..>>>>>>>>..........<<<<<<.<<<<<<<<<<<<<.....>>>>>
>>>>>>>>..<<..))>>.....>>>>>>.>>>.<<<......<<<<...
.>>>>....>>>..))))..<<<<<.<<<<<<<.<<.<<<<<<..<<<<<
<<<<<......<<........>>..........<<<<<<<......<<<<
<<<..<<<<<<<....>>>>>>>...<<....>>..>>>>>.>>.<<<.<
<<..<<<<<<.......<<<<<<<<<....>>>..<<<<......>>>>.
.>>>>>>.....<<<<.<<<<<<<...<<..<<<.....>>>>>....>>
>>>>>.....<<<<<.....>>>>>........>>>>.........>>>.
..>>>>>>>>>...>>>>>>>...>>.>>>>>>>>.....<<<<<<<...
..<<<..<<...<<<....>>>...>>....>>>.....>>>>>>>....
.......<<<<<<<........>>>>>>>..........>>>>>>....<
<<<<<<.........>>>>>>>......>>...>>>>>>>>>>.>>....
<..<<.<.<<<<.<<<..<<<<<<<<<<<<....<<<<<<.<<<...<<<
..>>>..>>>>>>>>>...>>>>>>>>>>>>..>>.>>>>>..>.>>...
>.....<<<<<<<<<....>>>>>>>>>............
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB7ac7 Structures of tmRNA and SmpB as they transit through the ribosome.
Resolution3.08 Å
Binding residue
(original residue number in PDB)
M1 R5 L6 R8 G10 A11 K12 K13 R14 F16 Y17 S24 R25 R28 G30 R31 F32 I33 R35 F38 E47 Q63 G64 S68 R70 K76
Binding residue
(residue number reindexed from 1)
M1 R5 L6 R8 G10 A11 K12 K13 R14 F16 Y17 S24 R25 R28 G30 R31 F32 I33 R35 F38 E47 Q63 G64 S68 R70 K76
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0000400 four-way junction DNA binding
GO:0003735 structural constituent of ribosome
GO:0004519 endonuclease activity
GO:0004520 DNA endonuclease activity
Biological Process
GO:0000028 ribosomal small subunit assembly
GO:0002181 cytoplasmic translation
GO:0006259 DNA metabolic process
GO:0006412 translation
Cellular Component
GO:0005737 cytoplasm
GO:0005840 ribosome
GO:0015935 small ribosomal subunit
GO:0022627 cytosolic small ribosomal subunit
GO:1990904 ribonucleoprotein complex

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Molecular Function

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Biological Process

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Cellular Component
External links
PDB RCSB:7ac7, PDBe:7ac7, PDBj:7ac7
PDBsum7ac7
PubMed34389707
UniProtP0A7T3|RS16_ECOLI Small ribosomal subunit protein bS16 (Gene Name=rpsP)

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