Structure of PDB 6xa1 Chain LQ Binding Site BS01

Receptor Information

>6xa1 Chain LQ (length=187) Species: 9606 (Homo sapiens)

GVDIRHNKDRKVRRKEPKSQDIYLRLLVKLYRFLARRTNSTFNQVVLKRL
FMSRTNRPPLSLSRMIRKMKLPGRENKTAVVVGTITDDVRVQEVPKLKVC
ALRVTSRARSRILRAGGKILTFDQLALDSPKGCGTVLLSGPRKGREVYRH
FGKAPGTPHSHTKPYVRSKGRKFERARGRRASRGYKN

Ligand information

>6xa1 Chain L5 (length=3510)

cgcgaccucagaucagacguggcgacccgcugaauuuaagcauauuaguc
agcggaggagaagaaacuaaccaggauucccucaguaacggcgagugaac
agggaagagcccagcgccgaauccccgccccgggggcgcgggacaugugg
cguacggaagacccgcuccccggggggcccaaguccuucugaucgaggcc
ccguggacggugugaggccgguagcggcccccgggcccgggucuucccgg
agucggguugcuugggaaugcagcccaaagcgggugguaaacuccaucua
aggcuaaauaccggcacgagaccgauagucaacaaguaccguaagggaaa
guugaaaagaacuuugaagagagaguucaagagggcgugaaaccguuaag
agguaaacgggugggguccgcgcaguccgcccggaggauucaacccggcg
gcggguccggccgggcggaucugggaccguccccggccgccgccgggcgc
auuuccaccgcggcggugcgccgcgaccggcuccgggacggcugggaagg
cccggcggggaagguggcucggccgaguguuacagcccccccggcagcag
cacucgccgaaucccggggccgagggagcgagacccgucgccgcgcucuc
cccccugggggggccgggccaccccucccacggcgcgaccgcuggggcgg
acuguucccagugcgccccgggcgggucgcgccgucgggcccggggggcc
acgcgcgcgucccgggacggcggagcgagcgcacggggucggcggcgacg
ucggcuacccacccgacccgucuugaaacacggaccaaggagucuaacac
gugcgcgagucgggggcucgcacgaaagccgccguggcgcaaugaaggug
aaggccggccgaggugggaucccgaggccucuccaguccgccgagggcgc
accaccggcccgucucgcccgccgcgccggggagguggagcacgagcgca
cguguuaggacccgaaagauggugaacuaugccugggcagggcgaagcca
gaggaaacucugguggagguccguagcgguccugacgugcaaaucggucg
uccgaccuggguauaggggcgaaagacuaaucgaaccaucuaguagcugg
uucccuccgaaguuucccucaggauagcuggcgcucucgcagacccgacg
cccgccacgcaguuuuauccgguaaagcgaaugauuagaggucuugguca
accuauucucaaacuuuaaauggguaagaagcccggcucgcuggcgugga
gccgggcguggaaugcgagugccuagugggccacuuuugguaagcagaac
uggcgcugcgggaugaaccgaacgccggguuaaggcgcccgaugccgacg
cucaucagaccccagaaaagguguugguugauauagacagcaggacggug
gccauggaagucggaauccgcuaaggaguguguaacaacucaccugccga
aucaacuagcccugaaaauggauggcgcuggagcgucgggcccauacccg
gccgucgccggcagucgagaguggacgggagcggcgggccggagccccgc
ggacgcuacgccgcgacgaguaggagggccgcugcggugagccuugaagc
cuagggcgcgggcccggguggagccgccgcaggugcagaucuugguggua
guagcaaauauucaaacgagaacuuugaaggccgaaguggagaaggguuc
caugugaacagcaguugaacaugggucagucgguccugagagaugggcga
gcgccguuccgaagggacgggcgauggccuccguugcccucggccgaucg
aaagggagucggguucagauccccgaauccggaguggcggagaugggcgc
cgcgaggcguccagugcgguaacgcgaccgaucccggagaagccggcggg
agccccggggagaguucucuuuucuuugugaagggcagggcgcccuggaa
uggguucgccccgagagaggggcccgugccuuggaaagcgucgcgguucc
ggcggcguccggugagcucucgcuggcccuugaaaauccgggggagaggg
uguaaaucucgcgccgggccguacccauauccgcagcaggucuccaaggu
gaacagccucuggcauguuggaacaauguagguaagggaagucggcaagc
cggauccguaacuucgggauaaggauuggcucuaagggcugggucggucg
cggccggcgccuagcagccgacuuagaacuggugcggaccaggggaaucc
gacuguuuaauuaaaacaaagcaucgcgaaggcccgcggcggguguugac
gcgaugugauuucugcccagugcucugaaugucaaagugaagaaauucaa
ugaagcgcggguaaacggcgggaguaacuaugacucucuuaagguagcca
aaugccucgucaucuaauuagugacgcgcaugaauggaugaacgagauuc
ccacugucccuaccuacuauccagcgaaaccacagccaagggaacgggcu
uggcggaaucagcggggaaagaagacccuguugagcuugacucuagucug
gcacggugaagagacuuuuuucacugacccggugaggcgggggggcgagc
ucucgcuucuggcgccaagcgcccggcgccgggcgcgacccgcuccgggg
acagugccagguggggaguuugacuggggcgguacaccugucaaacggua
acgcagguguccuaaggcgagcucagggaggacagaaaccucccguggag
cagaagggcaaaagcucgcuugaucuugauuuucaguacgaauacagacc
gugaaagcggggccucacgauccuucugaccuuuuggguuuuaagcagga
ggugucagaaaaguuaccacagggauaacuggcuuguggcggccaagcgu
ucauagcgacgucgcuuuuugauccuucgaugucggcucuuccuaucauu
gugaagcagaauucaccaagcguuggauuguucacccacuaauagggaac
gugagcuggguuuagaccgucgugagacagguuaguuuuacccuacugau
gauguguuguugccaugguaauccugcucaguacgagaggaaccgcaggu
ucagacauuugguguaugugcuuggcugaggagccaauggggcgaagcua
ccaucugugggauuaugacugaacgccucuaagucagaaucccgcccagg
cggaacgauacagcgccgcggagccucgguuggccucggauagccggucc
cggguccggugcggagugcccuucguccugggaaacggggcgcggccgga
gaggcggccgcccccucgcccgucacgcaccgcacguucguggggaaccu
ggcgcuaaaccauucguagacgaccugcuucugggucgggguuucguacg
uagcagagcagcucccucgcugcgaucuauugaaagucagcccucgacac
aaggguuugu

.........................<<<<<<.....<......>......
>>>>>.>.........<<....>>..<<<<<<.....<<.....>>....
>>>>>>..<<<..<<<<<...<<<<<<<<<<.>>>>>>.>>>>.....>>
>>>..<<<<<<<<<<...<<..<<<<<<<<....<<<<......>>>>.(
(......<<<.....))>>>...>.>>>>>>>.>>..>>>>>>>>>>...
....<<<<<<<........>>>>>>>.....<<<<<..((((((>>>>>.
.>>>..................................<<....>>....
...........<<<<....>>>>...........................
.......<<<<<<<<..<<<.<<...<<<<<<<<.<<<.....<<<<<<<
<<<<..<<<....<<<<<.<<<.>>>>>>>>..>>>>>>>>>>>>>>...
...>>>.>>>.>>>>>...<<<<<<<.<<<<<<<<<<.<<<<...<<..<
<<....<<<<......<<<<<..>>>>>.......>>>>...>>>.....
...>>>>>>...>>>>>>>>>>....................<<<<<<.<
<<<<<..>>>>>>.<<<<<<.<<<<.<<<<<<<<<<<.<<<<<<<<<<<.
<<<<....>>>>.>>>>>>>.>>>>.>.>>>>>>>.>>>...>>>>>>>>
.>>..<<<<<<<..>>>>>.>>....>>>>>>......>>.>>>>>...>
>>>>...>>>>>>>>..<<<<........>>>><<<<<<....<<<<<<<
<<<<<<..<<<...<<<<........>>>>.....>>>...<<....>>.
..<<<..>>>..<<<<<...<<<..<<<..((((..(((>>>..>>>...
.>>>>>.<<<<<<<<<.<<<<......>>>>>>>>>>>.>>....>>>>>
>>>>>>>>..<<.<..<<<<<<<.....<<<<<<<<<..<<<....<<<<
<<<....>>>>>>>.....>>>...<<<..<<.<<........>>>>.>>
>....>>>>>>>>>...<<.......>>......>>>>>>...>..>.>>
..<<<<<<....<.<<<....>>>.><<.<<<<<<<..............
........<<<.<<<<<<<<<...<<<....<<<..<.<<<.........
.>>>.>..>>>..>.>>...>>>>>>>...<<<<<<<<<.<......>>>
>>>>>>>....>>>>>>>>>>>>..>>..<<<<.<<<<<.....>>>>>.
>>>>....<<<......>>>...<<<<<<<...<<<(((.......<<<<
<.....<<..........<<<.<<<<<<<<<<..........<...<...
..................>.........................>.....
>>>>>>>>>>>>>..........))).>>...>>>>>..>>>...>>>>>
>><<<<<<.<<<..........)))..))))...<<...>>.........
.........>>>>>>>>>....>>>>>>.<<<<<<<<<<.<<......<<
<<.<<<<....>>>>>>>>...>>>>>>>>>>.>>.....>>>>>><<<.
...<<.....<<<<<<.......>>>>>>.<<<.....<<<<<.<<...<
<<<<<...<<.....>>.>>>>>>....((<<<<<<...<<....<<<..
..>>>..........<<.<<<<.............>>>>>>......>>.
...>>>..<<<<<........>>>>>))<<<<....<<<<<..<<<<<<<
<....>>>>>>>>..<<<....>>>...<..<<<<<<<...<<<<<<<<<
<<<.<<<<<<<<<<..[[[..>>>>>>....<<<<<.<<<<.<<<<....
.<<<.....>>>.....>>>>>>>>..>>>>>.....<<<<<<<......
.>>>>>>>>>>>...>>>>>>>>>>>>.........>>>>>>>..>....
......>>.>>>.>>>>.>>>..>>.....<<......>>>>>>>.<<<<
.....>>>>..>>>....<<<<.....<<<<<<<.<<.........<...
..<<<<<...............>>>>><<.<<<<<<<<<<<.........
..............>>>>>..>>>>>>.>>............<<<<<<<<
<..<<<.........>>>..<<<<<<<....<<<<.....>>>>......
>>>>>>>...<<..<<<..<<<<<<....<<<.....<<<<....>>>>.
....>>>.>>>>..>>>>><<<<<<.......>>>>>>........<...
........<<<<<.......>>>>>.....>.....>>....>>.>>>>>
>>..>..>>.>>>>>>>..>>>>>>...>>>....<<<<<........>>
>>>....<<<<<..<<<.<<......<<<<.<<<<<<..<<<<..<<<<<
<<<<.<<<<<<<<...>>>>>>>>...<<<<<.....<<<<.........
..................<<<<<<<<..>>>>>>>>..>>>>..>>>>>.
...>>>>>>>>>...>>>>...<<<.....>>>..<<<<<<.........
..>>>>>>..<<...<<<<<<<...<<<<<<.......>>>>>>.....<
<.[.(((>>....>>>>>>>...<<<.<<<<<.......>>>>.>>>><<
<<....>>>>>>)))].....<<<<<<<..<<<..)))))).>>>>>>>>
>>.........>>>>..>>>>>>.......<<.<.<.<<<<<<...<<..
.....>>...>>>>>>...>>.>.>.......<<<<<.<<<<<<..<.<.
<<<<<......>>>>>...>.>.<<<.........>>>.....>>>>>..
>...>>>.>>....<<<<<<<....>>>.>>>>....>>..>>>.>>>>>
.....<<<<<<.<..<<<..<.<<<<<.................>>>>>.
><<<<....<<<<....<<.<<<<<<<]]].>>>>>..>>.>>...>>>>
...>>>><<<<<...<<<<<...........>>>>>...>>>>>.>>>..
.>.>>>>>>..<<<<<<<.<<..<<<<....<<<........<<<<<.<<
..>>.>>>>>.......>>>...<<<..<<<<....<<<<.<<<<<<<..
....>>>>>>>>>>>...>>>>..>>>..............>>>>..>>>
>>>>>><<<<<....................<<.<<<<<<<.<<.....<
<<<....<<<<<......>>>>>...>>>>....>>....>>>>.>>>.>
>..>>>>>..

Receptor-Ligand Complex Structure

Structure summary

• PDB: 6xa1 Selective inhibition of human translation termination by a drug-like compound.
• Resolution: 2.8 Å
• Binding residue (original residue number in PDB): G2 H7 N8 D10 R11 K12 V13 R14 R15 S20 R26 K30 F34 R37 R38 T42 F43 Q45 M53 S54 R55 T56 N57 S62 S64 R65 R68 K69 L72 P73 R75 K78 T85 T87 D88 D89 V90 R91 R104 S107 R108 C134 G135 T136 L138 P142 R143 K144 R146 E147 R150 F152 G153 T158 H160 H162 Y166 S169 K170 R172 K173 E175 R176 R178 R181 S183 R184 G185 Y186 K187 N188
• Binding residue (residue number reindexed from 1): G1 H6 N7 D9 R10 K11 V12 R13 R14 S19 R25 K29 F33 R36 R37 T41 F42 Q44 M52 S53 R54 T55 N56 S61 S63 R64 R67 K68 L71 P72 R74 K77 T84 T86 D87 D88 V89 R90 R103 S106 R107 C133 G134 T135 L137 P141 R142 K143 R145 E146 R149 F151 G152 T157 H159 H161 Y165 S168 K169 R171 K172 E174 R175 R177 R180 S182 R183 G184 Y185 K186 N187

Gene Ontology

Molecular Function

• GO:0003723 RNA binding
• GO:0003735 structural constituent of ribosome
• GO:0005515 protein binding

Biological Process

• GO:0002181 cytoplasmic translation
• GO:0006412 translation

Cellular Component

• GO:0005634 nucleus
• GO:0005730 nucleolus
• GO:0005737 cytoplasm
• GO:0005783 endoplasmic reticulum
• GO:0005791 rough endoplasmic reticulum
• GO:0005829 cytosol
• GO:0005840 ribosome
• GO:0005925 focal adhesion
• GO:0016020 membrane
• GO:0022625 cytosolic large ribosomal subunit
• GO:0022626 cytosolic ribosome
• GO:0043232 intracellular non-membrane-bounded organelle
• GO:1990904 ribonucleoprotein complex

External links

• PDB: RCSB:6xa1, PDBe:6xa1, PDBj:6xa1
• PDBsum: 6xa1
• PubMed: 33009412
• UniProt: Q07020|RL18_HUMAN Large ribosomal subunit protein eL18 (Gene Name=RPL18)