Structure of PDB 8b6c Chain K Binding Site BS01

Receptor Information

>8b6c Chain K (length=444) Species: 9986 (Oryctolagus cuniculus)

KPERKIQFKEKVLWTAITLFIFLVCCQIPLFGIMSSDSADPFYWMRVILA
SNRGTLMELGISPIVTSGLIMQLLAGAKIIEVGDTPKDRALFNGAQKLFG
MIITIGQSIVYVMTGMYGDPSEMGAGICLLITIQLFVAGLIVLLLDELLQ
KGYGLGSGISLFIATNICETIVWKAFSPTTVNTGRGMEFEGAIIALFHLL
ATRTDKVRALREAFYRQNLPNLMNLIATIFVFAVVIYFQGFRVDLPIKSA
RYRGQYNTYPIKLFYTSNIPIILQSALVSNLYVISQMLSARFSGNLLVSL
LGTWSDTSSGGPARAYPVGGLCHYLSPPESFGSVLEDPVHAVVYIVFMLG
SCAFFSKTWIEVSGSSAKDVAKQLKEQQMVMRGHRETSMVHELNRYIPTA
AAFGGLCIGALSVLADFLGAIGSGTGILLAVTIIYQYFEIFVKE

Ligand information

>8b6c Chain 5 (length=3619)

cgcgaccucagaucagacguggcgacccgcugaauuuaagcauauuaguc
agcggaggaaaagaaacuaaccaggauucccucaguaacggcgagugaac
agggaagagcccagcgccgaauccccgccccgcggcggggcgcgggaaau
guggcguacggaagacccacuccccggcgccgcucguggggggcccaagu
ccuucugaucgaggcccagcccguggacggugugaggccgguagcggccc
ccggcgcgccgggcccgggucuucccggagucggguugcuugggaaugca
gcccaaagcgggugguaaacuccaucuaaggcuaaauaccggcacgagac
cgauagucaacaaguaccguaagggaaaguugaaaagaacuuugaagaga
gaguucaagagggcgugaaaccguuaagagguaaacgggugggguccgcg
caguccgcccggaggauucaacccggcggcggccggccgugccggcgguc
ucggcggaucuuucccgcucccgggggcgggggaccgccccccggccggc
gaccggccgccgccgggcgcauuuccaccgcggcggugcgccgcgaccgg
cuccgggacggcugggaaggcccggcggggaagguggcccggggggacgc
cucgccggcgggcgcgaccccuccccggguguuacagccccgccccggca
gcagcagcucgccgaaucccggggccgagggagcgagaccugugucgccg
cgcucuccccccugggggggccgggccaccccucccacggcgcgaccgcu
ggggcggacuguccccagugcgccccgggcgggucgcgccgucgggcccg
ggggccacggcgcgucgcggcgcgcgcgagcgagcgcacggggucggcgg
cgaugucggcuacccacccgacccgucuugaaacacggaccaaggagucu
aacacgugcgcgagucgggggcucgcacgaaagccgccguggcgcaauga
aggugaaggccggcgucgccggccgaggugggaucccgaggccuuccagu
ccgccgagggcgcaccaccggcccgucucgcccgccgcgccggggaggug
gagcacgagcgcacguguuaggacccgaaagauggugaacuaugccuggg
cagggcgaagccagaggaaacucugguggagguccguagcgguccugacg
ugcgaaucggucguccgaccuggguauaggggcgaaagacuaaucgaacc
aucuaguagcugguucccuccaaaguuucccucaggauagcuggcgcucu
cgcccgcaguuuuauccgguaaagcgaaugauuagaggucuuggggccga
aacgaucucaaccuauucucaaacuuuaaauggguaagaagcccggcucg
cugguguggagccgggcguggaaugcgagugccuagugggccacuuuugg
uaagcagaacuggcgcugcgggaugaaccgaacgccggguuaaggcgccc
gaugccgacgcucaucagaccccagaaaagguguugguugauauagacag
caggaugguggccauggaagucggaauccgcuaaggaguguguaacaacu
caccugccgaaucaacuagcccugaaaauggauggcgcuggagcgucggg
cccauacccggccgucgcuggcagucggcagagcgagaaagagaguggcg
cggacgcuacgccgcgacgaguaggagggccgcugcggugagccuugaag
ccuagggcgcgggcccggguggagccgccgcaggugcagaucuugguggu
aguagcaaauauucaaacgagaacuuugaaggccgaaguggagaaggguu
ccaugugaacagcaguugaacaugggucagucgguccugagagaugggcg
agcgccguuccgaagggacgggcgauggccuccguugcccucagccgauc
gaaagggagucggguucagauccccgaauccggaguggcggagaugggcg
ccgcgaggcguccagugcgguaacgcgaccgaucccggagaagccggcgg
gagccccggggagaguucucuuuucuuugugaagggcagggcgcccugga
auggguucgccccgagagaggggcccgugccuuggaaagcgucgcgguuc
cggcggcguccggugagcucucgcuggcccuugaaaauccgggggagagg
guguaaaucucgcgccgggccguacccauauccgcagcaggucuccaagg
ugaacagccucuggcauguuggaacaauguagguaagggaagucggcaag
ccggauccguaacuucgggauaaggauuggcucuaagggcuggcagccga
cuuagaacuggugcggaccaggggaauccgacuguuuaauuaaaacaaag
caucgcgaaggcccgcggcggguguugacgcgaugugauuucugcccagu
gcucugaaugucaaagugaagaaauucaaugaagcgcggguaaacggcgg
gaguaacuaugacucucuuaagguagccaaaugccucgucaucuaauuag
ugacgcgcaugaauggaugaacgagauucccacugucccuaccuacuauc
cagcgaaaccacagccaagggaacgggcuuggcggaaucagcggggaaag
aagacccuguugagcuugacucuagucuggcacggugaagagacaugaga
acuccgaucguuuuuucacugacccggugaggcgggggggcgagccgggc
ucucgcuucuggcgccaagcgcccggccccggggccgggcgcgacccgcu
ccggggacagugccagguggggaguuugacuggggcgguacaccugucaa
acgguaacgcagguguccuaaggcgagcucagggaggacagaaaccuccc
guggagcagaagggcaaaagcucgcuugaucuugauuuucaguacgaaua
cagaccgugaaagcggggccucacgauccuucugaccuuuuggguuuuaa
gcaggaggugucagaaaaguuaccacagggauaacuggcuuguggcggcc
aagcguucauagcgacgucgcuuuuugauccuucgaugucggcucuuccu
aucauugugaagcagaauucaccaagcguuggauuguucacccacuaaua
gggaacgugagcuggguuuagaccgucgugagacagguuaguuuuacccu
acugaugauguguuguugccaugguaauccugcucaguacgagaggaacc
gcagguucagacauuugguguaugugcuuggcugaggagccaauggggcg
aagcuaccaucugugggauuaugacugaacgccucuaagucagaaucccg
cccaggcggaacgauacggcagcgccgaggagccucgguuggccucggau
agccggucccccgcgggguccggugcggagagcccuucgucccgggaaac
ggggcgcggccggaaagggggccgcccucucgcccgucacgcaccgcacg
uucguggggaaccuggcgcuaaaccauucguagacgaccugcuucugggu
cgggguuucguacguagcagagcagcugcugcgaucuauugaaagucagc
ccucgacacaaggguuugu

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

Receptor-Ligand Complex Structure

Structure summary

• PDB: 8b6c Structural insights into TRAP association with ribosome-Sec61 complex and translocon inhibition by a CADA derivative.
• Resolution: 2.79 Å
• Binding residue (original residue number in PDB): K268 A270 R271 R273 G403 R405
• Binding residue (residue number reindexed from 1): K248 A250 R251 R253 G383 R385

Gene Ontology

Molecular Function

• GO:0005048 signal sequence binding
• GO:0008320 protein transmembrane transporter activity
• GO:0043022 ribosome binding

Biological Process

• GO:0006616 SRP-dependent cotranslational protein targeting to membrane, translocation
• GO:0015031 protein transport
• GO:0031204 post-translational protein targeting to membrane, translocation

Cellular Component

• GO:0005784 Sec61 translocon complex
• GO:0005789 endoplasmic reticulum membrane
• GO:0016020 membrane

External links

• PDB: RCSB:8b6c, PDBe:8b6c, PDBj:8b6c
• PDBsum: 8b6c
• PubMed: 36867692
• UniProt: A0A5F9CHB7