Structure of PDB 7o81 Chain BK Binding Site BS01

Receptor Information
>7o81 Chain BK (length=39) Species: 2697049 (Severe acute respiratory syndrome coronavirus 2) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
IPTTCANDPVGFTLKNTVCTVCGMWKGYGCSCDQLREPM
Ligand information
>7o81 Chain B5 (length=3764) [Search RNA sequence] [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
cgcgaccucagaucagacguggcgacccgcugaauuuaagcauauuaguc
agcggaggaaaagaaacuaaccaggauucccucaguaacggcgagugaac
agggaagagcccagcgccgaauccccgccccgcgguggggcgcgggaaau
guggcguacggaagacccacuccccggcgccgcucguggggggcccaagu
ccuucugaucgaggcccagcccguggacggugugaggccgguagcggccc
ccggcgcgccgggcccgggucuucccggagucggguugcuugggaaugca
gcccaaagcgggugguaaacuccaucuaaggcuaaauaccggcacgagac
cgauagucaacaaguaccguaagggaaaguugaaaagaacuuugaagaga
gaguucaagagggcgugaaaccguuaagagguaaacgggugggguccgcg
caguccgcccggaggauucaacccggcggcgugguccggccgugccggcg
gucucggcggaucuuucccgcuccccguuccuggggguggggucggcggg
ggaccgccccccggccggcgaccggccgccgccgggcgcauuuccaccgc
ggcggugcgccgcgaccggcuccgggacggcugggaaggccccggcgggg
aagguggcccggggggacgccucgccgccgucguccgcggcggcggcggg
cgcgaccccuccccggguguuacagccccgccccggcagcagcagcucgc
cgaaucccggggccgagggagcgagaccugugucgccgcgcucucccccc
ucgggggggccgggccgccccucccacggcgcgaccgcucggggcggacu
guccccagugcgccccgggcgugucacgccgucgggcucgggggaggcca
cggcgcgucgcgcgccggcgcgcgcgcgcgagcgagcgcacggggucggc
ggcgaugucggcuacccacccgacccgucuugaaacacggaccaaggagu
cuaacacgugcgcgagucgggggcucgcacgaaagccgccguggcgcaau
gaaggugaaggccggcggcggcgccgucgucggccgaggugggaucccga
ggcccuuccaguccgccgagggcgcaccaccggcccgucucgcccgccgc
gccggggagguggagcacgagcgcacguguuaggacccgaaagaugguga
acuaugccugggcagggcgaagccagaggaaacucugguggagguccgua
gcgguccugacgugcaaaucggucguccgaccuggguauaggggcgaaag
acuaaucgaaccaucuaguagcugguucccuccgaaguuucccucaggau
agcuggcgcucucgcaaccccgcaguuuuauccgguaaagcgaaugauua
gaggucuuggggccgaaacgaucucaaccuauucucaaacuuuaaauggg
uaagaagcccggcucgcuggcguggagccgggcguggaaugcgagugccu
agugggccacuuuugguaagcagaacuggcgcugcgggaugaaccgaacg
ccggguuaaggcgcccgaugccgacgcucaucagaccccagaaaaggugu
ugguugauauagacagcaggacgguggccauggaagucggaauccgcuaa
ggaguguguaacaacucaccugccgaaucaacuagcccugaaaauggaug
gcgcuggagcgucgggcccauacccggccgucgcuggcagucggcagagc
gagaaagagaguggagccgcggacgcuacgccgcgacgaguaggagggcc
gcugcggugagccuugaagccuagggcgcgggcccggguggagccgccgc
aggugcagaucuuggugguaguagcaaauauucaaacgagaacuuugaag
gccgaaguggagaaggguuccaugugaacagcaguugaacaugggucagu
cgguccugagagaugggcgagcgccguuccgaagggacgggcgauggccu
ccguugcccucagccgaucgaaagggagucggguucagauccccgaaucc
ggaguggcggagaugggcgccgcgaggcguccagugcgguaacgcgaccg
aucccggagaagccggcgggagccccggggagaguucucuuuucuuugug
aagggcagggcgcccuggaauggguucgccccgagagaggggcccgugcc
uuggaaagcgucgcgguuccggcggcguccggugagcucucgcuggcccu
ugaaaauccgggggagaggguguaaaucucgcgccgggccguacccauau
ccgcagcaggucuccaaggugaacagccucuggcauguuggaacaaugua
gguaagggaagucggcaagccggauccguaacuucgggauaaggauuggc
ucuaagggcugguagcagccgacuuagaacuggugcggaccaggggaauc
cgacuguuuaauuaaaacaaagcaucgcgaaggcccgcggcggguguuga
cgcgaugugauuucugcccagugcucugaaugucaaagugaagaaauuca
augaagcgcggguaaacggcgggaguaacuaugacucucuuaagguagcc
aaaugccucgucaucuaauuagugacgcgcaugaauggaugaacgagauu
cccacugucccuaccuacuauccagcgaaaccacagccaagggaacgggc
uuggcggaaucagcggggaaagaagacccuguugagcuugacucuagucu
ggcacggugaagagacaugagagguguagaauaagugggaggcccgggcc
gccggugaaauaccacuacucuuaucguuuuuucacugacccggugaggc
gggggggcgagccccgaggggcucucgcuucuggcgccaagcgccgggcc
ccgucgguccgggccggcggcggccgggcgcgacccgcuccggggacagu
gccagguggggaguuugacuggggcgguacaccugucaaacgguaacgca
gguguccuaaggcgagcucagggaggacagaaaccucccguggagcagaa
gggcaaaagcucgcuugaucuugauuuucaguacgaauacagaccgugaa
agcggggccucacgauccuucugagcuuuuggguuuuaagcaggaggugu
cagaaaaguuaccacagggauaacuggcuuguggcggccaagcguucaua
gcgacgucgcuuuuugauccuucgaugucggcucuuccuaucauugugaa
gcagaauucaccaagcguuggauuguucacccacuaauagggaacgugag
cuggguuuagaccgucgugagacagguuaguuuuacccuacugaugaugu
guuguugccaugguaauccugcucaguacgagaggaaccgcagguucaga
cauuugguguaugugcuuggcugaggagccaauggggcgaagcuaccauc
ugugggauuaugacugaacgccucuaagucagaaucccgcccaggcggaa
cgauacggcagcgccgaaggagccucgguuggccucggauagccgguccc
ccgcgggguccggugcggagagcccuucgucccgggaaauggggcgcggc
cggaaagggggccgcccucucgcccgucacgcaccgcacguucgugggga
accuggcgcuaaaccauucguagacgaccugcuucugggucgggguuucg
uacguagcagagcagcucccucgcugcgaucuauugaaagucagcccucg
acacaaggguuugu
.........................<<<<<<.....<......>......
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>>>>>>..<<<..<<<<<...<<<<<<<<<<.....>>>>>>.>>>>...
..>>>>>..<<<<<<<<<....<<<<<<<.<<<<....<<<<<<<<....
<<<<......>>>>.....((......<<<.....))>>>...>.>>>>>
>>>>>>>>>>>>>...>>>>>>>>>.......<<<<<<<........>>>
>>>>.....<<<<<..((((((>>>>>..>>>..................
................<<....>>...............<<<<....>>>
>..................................<<<<<<<<..<<<.<
<...<<<<<<<<.<<<.....<<<<<<<<<<....<<<<<<<.<<<<<.<
.....<<<<<.<<<..<<<<<<<<<<<<<<<..>>>>>>>>>..>>>>>>
>>>>>>>>.>>>>>>>>>>...>>>.>>>>>>>>>>......>>>.>>>.
>>>>>...<<<<<<<.<<<<<<<<<<.<<<<...<<..<<<..<<<<<<<
......<<<<<<<<<<....<<<<<<<<<<<<<<..>>>>>>>>>>>>>>
........>>>>>>>>>>.......>>>>>>>..>>>.........>>>>
>>...>>>>>>>>>>.....<<.....[[>>......<<<<<<.<<<<<<
<.>>>>>>>.<<<<<<.<<<<.<<<<<<<<<.<<<<<<<<<<<<<<.<<<
<....>>>>.>>>>>>>>>>>.>>>.>>>>>>.>>>...>>>>..>>>>.
>><<<<<.<<<<<<<..>>>>>>>>>>>>....>>>>>>......>>.>>
>>>...>>>>>...>>>>>>>>..<<<<........>>>><<<<<<...<
<<<<<<<<<<<<<..<<<...<<<<........>>>>.....>>>...<<
....>>...<<<<<<<<<<<<..>>>>>>>>>>>>..<<<<<...<<<..
<<....((((.{{..>>..>>>....>>>>>.<<<<<<<<<.<<<<....
..>>>>>>>>>>>.>>....>>>>>>>>>>>>>>.<<.<..<<<<<<<..
...<<<<<<<<<..<<<....<<<<<<<....>>>>>>>.....>>>...
<<<..<<.<<........>>>>.>>>....>>>>>>>>>...<<......
.>>......>>>>>>...>..>.>>..<<<<<<....<.<<<....>>>.
><<.<<<<<<<..........<<<.<<<<<<<<<...<<<....<<<..<
.<<<..<<<<<<.<.....>.>>>>>>>>>.>..>>>..>.>>...>>>>
>>>...<<<<<<<<<.<......>>>>>>>>>>....>>>>>>>>>>>>.
.>>..<<<<.<<<<<.....>>>>>.>>>>....<<<......>>>...<
<<<<<<...<<<(((.......<<<<<.....<<..........<<<.<<
<<<<<<<<.......<<<<<.<<....<<.........>>....>>....
.....<<......>>...>>>>>...>>>>>>>>>>>>>..........)
)).>>...>>>>>..>>>...>>>>>>><<<<<<.<<<.......]]...
........}}.))))..............>>>>>>>>>....>>>>>>..
.<<<<<<<..<<......<<<<.<<<<....>>>>>>>>...>>.>>>>>
>>........>>>>>><<.....<<.....<<<<<<.......>>>>>>.
<<<.....<<<<<.<<...<<<<<<...<<.....>>.>>>>>>....((
<<<<<<...<<....<<<....>>>..........<<.<<<<<<<<<...
>>>>>>>>>>>......>>....>>>..<<<<<........>>>>>))<<
<<....<<<<<..<<<<<<<<....>>>>>>>>..<<<....>>>...<.
.<<<<<<<...<<<<<<<<<<<<.<<<<<<<<<<..[[[..>>>>>>...
.<<<<<.<<<<.<<<<.....<<<.....>>>.....>>>>>>>>..>>>
>>.....<<<<<<<.......>>>>>>>>>>>...>>>>>>>>>>>>...
......>>>>>>>..>..........>>.>>>.>>>>.>>>..>>.....
<<......>>>>>>>.<<<<.....>>>>..>>>....<<<<.....<<<
<<<<.<<.........<.....<<<<<....<<..>>.....>>>>><<.
<<<<<<<<<<<....>>>>>..>>>>>>.>>............<<<<<<<
<<..<<<.........>>>..<<<<<<<....<<<<.....>>>>.....
.>>>>>>>...<<..<<<..<<<<<<.<..<<<.....<<<<....>>>>
.....>>>>>>>>..>>>>><<<<<<.......>>>>>>........<..
.........<<<<<.......>>>>>.....>.....>>....>>.>>>>
>>>..>..>>.>>>>>>>..>>>>>>....>>....<<<<<........>
>>>>....<<<<<..<<<.<<......<<<<.<<<<<<..<<<<<.<<<<
<<<<<.<<<<<<<<<<<<<<<<<..........<<<<<..<<<<..>>>>
............>>>>>.>>>>>>>.>>>>>>>>>>...<<<<<.....<
<<<..<<.<<<<<<....>>>>>>>>..............<<<<<.<<<<
<<<<<<<<<..>>>>>>>>>.>>>>.>>>>>..>>>>..>>>>>....>>
>>>>>>>..>>>>>...<<<.....>>>..<<<<<<...........>>>
>>>..<<...<<<<<<<...<<<<<<.......>>>>>>.....<<.[.(
((>>....>>>>>>>...<<<.<<<<<.......>>>>.>>>>.<<<...
.>>>.>>)))].....<<<<<<<..<<<..)))))).>>>>>>>>>>...
......>>>>..>>>>>>.......<<.<.<.<<<<<<...<<.......
>>...>>>>>>...>>.>.>.......<<<<<.<<<<<<..<.<.<<<<<
......>>>>>...>.>.<<<.........>>>.....>>>>>..>...>
>>.>>....<<<<<<<....>>>.>>>>....>>..>>>.>>>>>.....
<<<<<<.<..<<<..<.<<<<<.................>>>>>.><<<<
....<<<<....<<.<<<<<<.]]]..>>>>..>>.>>...>>>>...>>
>><<<<<...<<<<<...........>>>>>...>>>>>.>>>...>.>>
>>>>.....<<<<<<<..<<..<<<<....<<<........<<<<<..<<
<<..>>>>.>>>>>.......>>>...<<<..<<<<....<<<<.<<<<<
<........>>>>>>>>>>...>>>>..>>>..............>>>>.
.>>>>>>>>><<<<<.<.............>....<<.<<<<<<<.<<..
...<<<<.<..<<<<<......>>>>>..>>>>>....>>....>>>>.>
>>.>>..>>>>>..
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB7o81 Structural basis of ribosomal frameshifting during translation of the SARS-CoV-2 RNA genome.
Resolution3.1 Å
Binding residue
(original residue number in PDB)
T4355 D4359 T4371 M4375 W4376 Y4379 S4382 C4383 D4384 Q4385 L4386 R4387 E4388 P4389 M4390
Binding residue
(residue number reindexed from 1)
T4 D8 T20 M24 W25 Y28 S31 C32 D33 Q34 L35 R36 E37 P38 M39
Enzymatic activity
Enzyme Commision number 2.1.1.56: mRNA (guanine-N(7))-methyltransferase.
2.1.1.57: methyltransferase cap1.
2.7.7.48: RNA-directed RNA polymerase.
2.7.7.50: mRNA guanylyltransferase.
3.1.13.-
3.4.19.12: ubiquitinyl hydrolase 1.
3.4.22.-
3.4.22.69: SARS coronavirus main proteinase.
3.6.4.12: DNA helicase.
3.6.4.13: RNA helicase.
4.6.1.-
Gene Ontology
Molecular Function
GO:0003723 RNA binding
GO:0003968 RNA-dependent RNA polymerase activity
GO:0005524 ATP binding
GO:0008270 zinc ion binding
Biological Process
GO:0006351 DNA-templated transcription
GO:0019079 viral genome replication
GO:0039694 viral RNA genome replication

View graph for
Molecular Function

View graph for
Biological Process
External links
PDB RCSB:7o81, PDBe:7o81, PDBj:7o81
PDBsum7o81
PubMed34029205
UniProtP0DTD1|R1AB_SARS2 Replicase polyprotein 1ab (Gene Name=rep)

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