Structure of PDB 8bqx Chain a Binding Site BS01

Receptor Information
>8bqx Chain a (length=87) Species: 4932 (Saccharomyces cerevisiae) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
MENDKGQLVELYVPRKCSATNRIIKADDHASVQINVAKVDEEGRAIPGEY
VTYALSGYVRSRGESDDSLNRLAQNDGLLKNVWSYSR
Ligand information
>8bqx Chain 2 (length=1771) [Search RNA sequence] [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
uaucugguugauccugccaguagucauaugcuugucucaaagauuaagcc
augcaugucuaaguauaagcaauuuauacagugaaacugcgaauggcuca
uuaaaucaguuaucguuuauuugauaguuccuuuacuacaugguauaacu
gugguaauucuagagcuaauacaugcuuaaaaucucgacccuuuggaaga
gauguauuuauuagauaaaaaaucaaugucuucggacucuuugaugauuc
auaauaacuuuucgaaucgcauggccuugugcuggcgaugguucauucaa
auuucugcccuaucaacuuucgaugguaggauaguggccuaccaugguuu
caacggguaacggggaauaaggguucgauuccggagagggagccugagaa
acggcuaccacauccaaggaaggcagcaggcgcgcaaauuacccaauccu
aauucagggagguagugacaauaaauaacgauacagggcccauucggguc
uuguaauuggaaugaguacaauguaaauaccuuaacgaggaacaauugga
gggcaagucuggugccagcagccgcgguaauuccagcuccaauagcguau
auuaaaguuguugcaguuaaaaagcucguaguugaacuuugggcccgguu
ggccggucggauuuccaacggggccuuuccuucuggcuaaccuugagcuu
ggcgaaccaggacuuuuacuuugaaaaaauuagaguguucaaagcaggcg
uauugcucgaauauauuagcauggaauaauagaauaggacguuugguucu
auuuuguugguuucuaggaccaucguaaugauuaauagggacggucgggg
gcaucaguauucaauugucagaggugaaauucuuggauuuauugaagacu
aacuacugcgaaagcauuugccaaggacguuuucauuaaucaagaacgaa
aguuaggggaucgaagaugaucagauaccgucguagucuuaaccauaaac
uaugccgacuagggaucgggugguguuuuuuuaaugacccacucggcacc
uuacgagaaaucaaagucuuuggguucuggggggaguauggucgcaaggc
ugaaacuuaaaggaauugacggaagggcaccaccaggaguggagccugcg
gcuuaauuugacucaacacggggaaacucaccagguccagacacaauaag
gauugacagauugagagcucuuucuugauuuugugggugguggugcaugg
ccguucuuaguugguggagugauuugucugcuuaauugcgauaacgaacg
agaccuuaaccuacuaaauaguggugcuagcauuugcugguuauccacuu
cuuagagggacuaucgguuucaagccgauggaaguuugaggcaauaacag
gucugugaugcccuuagacguucugggccgcacgcgcgcuacacugacgg
agccagcgagucuaaccuuggccgagaggucuugguaaucuugugaaacu
ccgucgugcuggggauagagcauuguaauuauugcucuucaacgaggaau
uccuaguaagcgcaagucaucagcuugcguugauuacgucccugcccuuu
guacacaccgcccgucgcuaguaccgauugaauggcuuagugaggccuca
ggaucugcuuagagaagggggcaacuccaucucagagcggagaauuugga
caaacuuggucauuuagaggaacuaaaagucguaacaagguuuccguagg
ugaaccugcggaaggaucauu
...<<<<<...((((>>>>><<<<.<<<<<<...<.<...<......<<<
.<<<..<<....<<....<<..........>>...>>.>>......<<..
......<<<..<<..<<....<<<..................<<....<<
.<<<.....>>>.>>.....>>.........<<<<<..<<....>>..>>
>>><.<.<<<<<<......[[.((((.<<<....>>>....<<......>
>>>>>>>.>...>...<<<<..<<<.....>>>.>>>>....>>>...>>
>>..>>>.<<<....<<<....<<<<<<<<.......>>>>>>>>>>>..
....>>>...<<<.<<<<....>>>>....>>>.>>.<<.<<<.......
...>>>.>>.<.<<....>>.>...>>>>>>.........<<<....<<<
.....>>>..>>>..>....>.>.....<<<<<<<.<<<<<....>>>>>
.>>>>.>>>......<<..<...........>..>>.........<<<<<
((......<<<<.....<<..))>>.......>>>>.>>>>>..>>>>>>
>>>>.........<<<{{.....<.<<...<<<.<<....<<<<<<.<<<
<..............>>>>.>>>>>>.....<<<<<..............
......>>>>>....<<<<<.<<.......<<...<.......>..<<<<
...>>>>....>>......>>.>>..>>>.........<<...<<<<<<<
<.....)))).]].>>>>>>>>..>>.....>>....<<<<<<.<<...<
<<<..<<..<<<<<<.<...<<<......>>>......>.>>>>>.>.>>
.......<<....>>...>>>>...>>>>>.>>>...>>>...>>.>...
.<<<<<<<...<...<<<<.........>>>>...>>>>>>>>.......
...<<<.<<.<<<..<<<<<<<<.<<<........>>>>>>>>>>>..>>
>...<<..}}>>...>>.....>>>.>>>.<<<......<<<<....>>>
>....>>>..))))..<<<<<.<<<<<<<..<<.<<<<<<..<<<.<<<<
<.......<<........>>..........<<<<<.<....<<<<<....
....<<.<<<........>>>.>>......>>>>>.<.<<.<<<..<<.<
<<<<<....<<<.<<<<<....>>>...<<<......>>>...>>.>>>.
...<<<<<.<<..<<<<..<<<<<.<<<<<<....>>>>>>...>>>>>.
.>>>>.>>....<<<<<<.....>>>>>>.......>>>>>....>>>.>
>>.....>>>>>>>>....>.>>>>>....>.>>>>.>>>.....<<<<<
<<......<<.....<<..<<<<....>>>>..>>....>>.......>>
>>>>>......<....<<<<<<..........>>>>>>....>.....>>
>>>>....<<<<<<<<.......>>>>>>>>......>>...>>>>>>>>
>>.>>....<..<<.<..<<<<.<<....<<<<<<<<.<<<..<.<<..<
...<<<<<<<.<<<<.<<<<....>>>>.>>>>.>>>>>>>...>..>>.
>..>>>.>>>>>>>>...>>.>>>>...>.>>...>.....<<<<<<<<<
....>>>>>>>>>........
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB8bqx The dynamic architecture of Map1- and NatB-ribosome complexes coordinates the sequential modifications of nascent polypeptide chains.
Resolution3.8 Å
Binding residue
(original residue number in PDB)
Y58 R62
Binding residue
(residue number reindexed from 1)
Y58 R62
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0003735 structural constituent of ribosome
Biological Process
GO:0000447 endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA)
GO:0000461 endonucleolytic cleavage to generate mature 3'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA)
GO:0006364 rRNA processing
GO:0006412 translation
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol
GO:0005840 ribosome
GO:0022627 cytosolic small ribosomal subunit
GO:1990904 ribonucleoprotein complex

View graph for
Molecular Function

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Biological Process

View graph for
Cellular Component
External links
PDB RCSB:8bqx, PDBe:8bqx, PDBj:8bqx
PDBsum8bqx
PubMed37079644
UniProtP0C0V8|RS21A_YEAST Small ribosomal subunit protein eS21A (Gene Name=RPS21A)

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