Structure of PDB 7jt3 Chain 8 Binding Site BS02

Receptor Information

>7jt3 Chain 8 (length=130) Species: 83333 (Escherichia coli K-12)

ISRHVAIPDGELEITAIRAQGAGGQHVNKTSTAIHLRFDIRASSLPEYYK
ERLLAASHHLISSDGVIVIKAQEYRSQELNREAALARLVAMIKELTTEKK
ARRPTRPTRASKERRLASKAQKSSVKAMRG

Ligand information

>7jt3 Chain 1 (length=2903)

gguuaagcgacuaagcguacacgguggaugcccuggcagucagaggcgau
gaaggacgugcuaaucugcgauaagcgucgguaaggugauaugaaccguu
auaaccggcgauuuccgaauggggaaacccaguguguuucgacacacuau
cauuaacugaauccauagguuaaugaggcgaaccgggggaacugaaacau
cuaaguaccccgaggaaaagaaaucaaccgagauucccccaguagcggcg
agcgaacggggagcagcccagagccugaaucaguguguguguuaguggaa
gcgucuggaaaggcgcgcgauacagggugacagccccguacacaaaaaug
cacaugcugugagcucgaugaguagggcgggacacgugguauccugucug
aauauggggggaccauccuccaaggcuaaauacuccugacugaccgauag
ugaaccaguaccgugagggaaaggcgaaaagaaccccggcgaggggagug
aaaaagaaccugaaaccguguacguacaagcagugggagcacgcuuaggc
gugugacugcguaccuuuuguauaaugggucagcgacuuauauucuguag
caagguuaaccgaauaggggagccgaagggaaaccgagucuuaacugggc
guuaaguugcaggguauagacccgaaacccggugaucuagccaugggcag
guugaagguuggguaacacuaacuggaggaccgaaccgacuaaugucgaa
aaauuagcggaugacuuguggcugggggugaaaggccaaucaaaccggga
gauagcugguucuccccgaaagcuauuuagguagcgccucgugaauucau
cuccggggguagagcacuguuucggcaagggggucaucccgacuuaccaa
cccgaugcaaacugcgaauaccggagaauguuaucacgggagacacacgg
cgggugcuaacguccgucgugaagagggaaacaacccagaccgccagcua
aggucccaaagucaugguuaagugggaaacgaugugggaaggcccagaca
gccaggauguuggcuuagaagcagccaucauuuaaagaaagcguaauagc
ucacuggucgagucggccugcgcggaagauguaacggggcuaaaccaugc
accgaagcugcggcagcgacgcuuaugcguuguuggguaggggagcguuc
uguaagccugcgaaggugugcugugaggcaugcuggagguaucagaagug
cgaaugcugacauaaguaacgauaaagcgggugaaaagcccgcucgccgg
aagaccaaggguuccuguccaacguuaaucggggcagggugagucgaccc
cuaaggcgaggccgaaaggcguagucgaugggaaacagguuaauauuccu
guacuugguguuacugcgaaggggggacggagaaggcuauguuggccggg
cgacgguugucccgguuuaagcguguaggcugguuuuccaggcaaauccg
gaaaaucaaggcugaggcgugaugacgaggcacuacggugcugaagcaac
aaaugcccugcuuccaggaaaagccucuaagcaucagguaacaucaaauc
guaccccaaaccgacacagguggucagguagagaauaccaaggcgcuuga
gagaacucgggugaaggaacuaggcaaaauggugccguaacuucgggaga
aggcacgcugauauguaggugaggucccucgcggauggagcugaaaucag
ucgaagauaccagcuggcugcaacuguuuauuaaaaacacagcacugugc
aaacacgaaaguggacguauacggugugacgccugcccggugccggaagg
uuaauugaugggguuagcgcaagcgaagcucuugaucgaagccccgguaa
acggcggccguaacuauaacgguccuaagguagcgaaauuccuugucggg
uaaguuccgaccugcacgaauggcguaaugauggccaggcugucuccacc
cgagacucagugaaauugaacucgcugugaagaugcaguguacccgcggc
aagacggaaagaccccgugaaccuuuacuauagcuugacacugaacauug
agccuugauguguaggauaggugggaggcuuugaaguguggacgccaguc
ugcauggagccgaccuugaaauaccacccuuuaauguuugauguucuaac
guugacccguaauccggguugcggacagugucugguggguaguuugacug
gggcggucuccuccuaaagaguaacggaggagcacgaagguuggcuaauc
cuggucggacaucaggagguuagugcaauggcauaagccagcuugacugc
gagcgugacggcgcgagcaggugcgaaagcaggucauagugauccggugg
uucugaauggaagggccaucgcucaacggauaaaagguacuccggggaua
acaggcugauaccgcccaagaguucauaucgacggcgguguuuggcaccu
cgaugucggcucaucacauccuggggcugaaguaggucccaaggguaugg
cuguucgccauuuaaagugguacgcgagcuggguuuagaacgucgugaga
caguucggucccuaucugccgugggcgcuggagaacugaggggggcugcu
ccuaguacgagaggaccggaguggacgcaucacugguguucggguuguca
ugccaauggcacugcccgguagcuaaaugcggaagagauaagugcugaaa
gcaucuaagcacgaaacuugccccgagaugaguucucccugacccuuuaa
ggguccugaaggaacguugaagacgacgacguugauaggccgggugugua
agcgcagcgaugcguugagcuaaccgguacuaaugaaccgugaggcuuaa
ccu

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

Receptor-Ligand Complex Structure

Structure summary

• PDB: 7jt3 ArfB can displace mRNA to rescue stalled ribosomes
• Resolution: 3.7 Å
• Binding residue (original residue number in PDB): I20 R21 Q23 G24 A25 G26 G27 Q28 H29 V30 N31 K32 T33 S34 T35 A36 H62 L63 S65 K73 E76 Y77 R78 Q80 R90 K102 A104 R105 T108 T111
• Binding residue (residue number reindexed from 1): I17 R18 Q20 G21 A22 G23 G24 Q25 H26 V27 N28 K29 T30 S31 T32 A33 H59 L60 S62 K70 E73 Y74 R75 Q77 R87 K99 A101 R102 T105 T108

Enzymatic activity

• Enzyme Commision number: 3.1.1.29: peptidyl-tRNA hydrolase.

Gene Ontology

Molecular Function

• GO:0003747 translation release factor activity
• GO:0004045 aminoacyl-tRNA hydrolase activity
• GO:0016787 hydrolase activity
• GO:0043022 ribosome binding

Biological Process

• GO:0006415 translational termination
• GO:0006417 regulation of translation
• GO:0072344 rescue of stalled ribosome

Cellular Component

• GO:0005737 cytoplasm

External links

• PDB: RCSB:7jt3, PDBe:7jt3, PDBj:7jt3
• PDBsum: 7jt3
• PubMed: 33144582
• UniProt: P40711|ARFB_ECOLI Peptidyl-tRNA hydrolase ArfB (Gene Name=arfB)