Structure of PDB 5aka Chain 5 Binding Site BS03

Receptor Information
>5aka Chain 5 (length=109) Species: 83333 (Escherichia coli K-12) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
GFDLNDFLEQLRQMKNMGGMASLMGKLPGMGQIPDNVKSQMDDKVLVRME
AIINSMTMKERAKPEIIKGSRKRRIAAGSGMQVQDVNRLLKQFDDMQRMM
KKMKKGGMA
Ligand information
>5aka Chain B (length=2841) [Search RNA sequence] [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
gguuaagcgacuaagcguacacgguggaugcccuggcagucagaggcgau
gaaggacgugcuaaucugcgauaagcgucgguaaggugauaugaaccguu
auaaccggcgauuuccgaauggggaaacccaguguguuucgacacacuau
cauuaacugaauccauagguuaaugaggcgaaccgggggaacugaaacau
cuaaguaccccgaggaaaagaaaucaaccgagauucccccaguagcggcg
agcgaacggggagcagcccagagccugaaucaguguguguguuaguggaa
gcgucuggaaaggcgcgcgauacagggugacagccccguacacaaaaaug
cacaugcugugagcucgaugaguagggcgggacacgugguauccugucug
aauauggggggaccauccuccaaggcuaaauacuccugacugaccgauag
ugaaccaguaccgugagggaaaggcgaaaagaaccccggcgaggggagug
aaaaagaaccugaaaccguguacguacaagcagugggagcacgcuuaggc
gugugacugcguaccuuuuguauaaugggucagcgacuuauauucuguag
caagguuaaccgaauaggggagccgaagggaaaccgagucuuaacugggc
guuaaguugcaggguauagacccgaaacccggugaucuagccaugggcag
guugaagguuggguaacacuaacuggaggaccgaaccgacuaauguugaa
aaauuagcggaugacuuguggcugggggugaaaggccaaucaaaccggga
gauagcugguucuccccgaaagcuauuuagguagcgccucgugaauucau
cuccggggguagagcacuguuucggcaacaacccgaugcaaacugcgaau
accggagaauguuaucacgggagacacacggcgggugcuaacguccgucg
ugaagagggaaacaacccagaccgccagcuaaggucccaaagucaugguu
aagugggaaacgaugugggaaggcccagacagccaggauguuggcuuaga
agcagccaucauuuaaagaaagcguaauagcucacuggucgagucggccu
gcgcggaagauguaacggggcuaaaccaugcaccgaagcugcggcagcga
cgcuuaugcguuguuggguaggggagcguucuguaagccugcgaaggugu
gcugugaggcaugcuggagguaucagaagugcgaaugcugacauaaguaa
cgauaaagcgggugaaaagcccgcucgccggaagaccaaggguuccuguc
caacguuaaucggggcagggugagucgaccccuaaggcgaggccgaaagg
cguagucgaugggaaacagguuaauauuccuguacuugguguuacugcga
aggggggacggagaaggcuauguuggccgggcgacgguugucccgguuua
agcguguaggcugguuuuccaggcaaauccggaaaaucaaggcugaggcg
ugaugacgaggcacuacggugcugaagcaacaaaugcccugcuuccagga
aaagccucuaagcaucagguaacaucaaaucguaccccaaaccgacacag
guggucagguagagaauaccaaggcgcuugagagaacucgggugaaggaa
cuaggcaaaauggugccguaacuucgggagaaggcacgcugauauguagg
ugaggucccucgcggauggagcugaaaucagucgaagauaccagcuggcu
gcaacuguuuauuaaaaacacagcacugugcaaacacgaaaguggacgua
uacggugugacgccugcccggugccggaagguuaauugaugggguuagcg
caagcgaagcucuugaucgaagccccgguaaacggcggccguaacuauaa
cgguccuaagguagcgaaauuccuugucggguaaguuccgaccugcacga
auggcguaaugauggccaggcugucuccacccgagacucagugaaauuga
acucgcugugaagaugcaguguacccgcggcaagacggaaagaccccgug
aaccuuuacuauagcuugacacugaacauugagccuugauggaagugugg
acgccagucugcauggcuuuaauguuugauguucuaacguugacccguaa
uccggguugcggacagugucugguggguaguuugacuggggcggucuccu
ccuaaagaguaacggaggagcacgaagguuggcuaauccuggucggacau
caggagguuagugcaauggcauaagccagcuugacugcgagcgugacggc
gcgagcaggugcgaaagcaggucauagugauccggugguucugaauggaa
gggccaucgcucaacggauaaaagguacuccggggauaacaggcugauac
cgcccaagaguucauaucgacggcgguguuuggcaccucgaugucggcuc
aucacauccuggggcugaaguaggucccaaggguauggcuguucgccauu
uaaagugguacgcgagcuggguuuagaacgucgugagacaguucgguccc
uaucugccgugggcgcuggagaacugaggggggcugcuccuaguacgaga
ggaccggaguggacgcaucacugguguucggguugucaugccaauggcac
ugcccgguagcuaaaugcggaagagauaagugcugaaagcaucuaagcac
gaaacuugccccgagaugaguucucccugacccuuuaaggguccugaagg
aacguugaagacgacgacguugauaggccggguguguaagcgcagcgaug
cguugagcuaaccgguacuaaugaaccgugaggcuuaaccu
<<<<<<<<......<<<<<<<<<<<.....[[..[[<<<<<<<[[<<...
...<<<<<<.[..(((.>>>.....<<<<<<<..<<<)))..].>>>...
...>>>>>>>...>>>....<<<....>>><<<<<<<....>>>>>>>.<
<<<<<<<<.........>>>>>>>>>.>>...<<<<<<.....<<....>
>......>>>>>.>.........<<....>>..<<<<<<.....<<....
.>>....>>>>>>..(((....<......<.<<<..<<<<<...<<<...
.<<..........>>.(.......<<<......)>>>...>>>.....>>
>>>..>>>>....>..........<<<<<<<<.........>>>>>>>>.
.....<<<<<..<<<<>>>>>..)))......]].>>>>>>>.]].....
..........<<....>>....]].........<<<<.....>>>>....
..............>>>>>>>>>>>.......<<<<..<<<<<......>
>>>>..>>>>...<............>.<<<<<<....<<<<<<<<<<<<
<..<<<...<<.....>>...>>>...<<....>>..<<<<.....>>>>
.....>>>>>>>>>>>>>..<<.<...<<<<<<.....<<<<<<<<<..<
<<....<<<<<<......>>>>>>.....>>>...<<<.<<<<<......
..>>>>>>>>....>>>>>>>>>...<<<.....>>>......>>>>>>.
.....>.>>..<<<<<<....<<<<<....>>>>>.<<<<<<<<...<<<
<<<<<<.<...<<<...<<<.<<<<.......>>>>.>>>..>>.>...>
.>>>>>>.>>>...>>>>>>>.>...<<<<<<<<<<......>>>>>>>>
>>....<<<......>>>...<<<<.<<<...<<<(((.....<<<<<<.
..........<<..<<<<<............<<<<<.<<...<<<<....
...>>>>...>>........<<<......>>>..>>>>>........>>>
>>.>>...........))).....>>>>>>.>>>...>>>>>>><<<<<<
<<<....>>>>>>>>>....>>>>>><.<<<<<...<<<......<<<<<
<<<....>>>>>>>>...>>>..>>>>>..>.....>>>>>><......<
<.....<<<<<<.......>>>>>><<<<....<<<<<.<<...<<<<<<
...<<.....>>.>>>>>>....((<<<.<<<...<<<...<<<....>>
>...>>>...>>>..<<<<<........>>>>>))<<<<<<<<<<<<<..
.<<<<....<<<<..<<<..<<<<<<<<<<<....(((...>>>>>>...
.<<<....<<<<<<<<<<<<.<<.....>>>>>>>>>>..>>>>....>>
>........<<<........>>>....>>>>>...>>>...>>>>.....
....>>>>...>>....>>>>>>>>>>>.>>>..>>.....<<......>
>>>>>>.<<<<.....>>>>..>>>>..<<<<....<<<<<<<<.<<...
......<.....<<<<<...............>>>>><<<<<<.....<<
<...<<<<.....>>>>...>>>...>>>>>>............<<<<<<
<<<..<<<.........>>>..<<<<<<<.....<<<....>>>......
.>>>>>>>.<<<<<.<<<..<<<<<<<..<<<<.......<<<<<..<<.
...>>...>>>>>.......>>>>>>>>>..>>>>><<<<<<.......>
>>>>>........<...........<<<<<.......>>>>>.....>..
..>>>>>..>>.>>>>>>>..>..>>.>>>>>>>>.>>>>>>.....>..
...<<<<<........>>>>>..<<<<<<<<.(((.[[......<<<<.[
[<<<<..<<<<<.<<<.<<<<<.<<<<<<<<<<<.<<<<.....<<<<<<
<<....>>>>>>>>....>>>>.>>>>>>>>>>>...<<<.<<<<<<...
..>>>>>>>>>....>>>>>.>>>..>>>>>..<<<<.....>>>><<<<
<<...........>>>>>>..<<...<<<<<<<...<<<<<<.......>
>>>>>.....<<...(((>>....>>>>>>>...<<<<..<<<<....>>
>>..>>>>.<<<....>>>.>>))).......<<<<<<<.((..>>>>..
))>>>>>>>.............>>>>..]]>>>>.......<<<<...<<
<<<<...<<.......>>...>>>>>>....>>>.>.......<<<<<.<
<<<<<..<<<<<<<<<......>>>>>>>..>>.<<<<<.....>>>>>.
....>>>>>..>...>>>.>>....<<<<<<<....>>>.>>>>....]]
..)))>>>>>>>>....<<<<<<<...<<<<..<<<<<<<..........
.....>>>>>>>.<<<<<...<<<<...<<<<<<<<<<<))).>>>>>>.
.>>>>>...>>>>.>>>>>...<<<....<<<<<...........>>>>>
....>>>.>>>>.......>>>>>>>..<<<<<<...>>>>>>.....<<
..<<<<<.......>>>>>....<<<<<<<<..<<....<<<<<....>>
>>>...>>...>>>>>.>>>.....>>.....>>>>>>>>.
Receptor-Ligand Complex Structure
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PDB5aka Ribosome-Srp-Ftsy Cotranslational Targeting Complex in the Closed State.
Resolution5.7 Å
Binding residue
(original residue number in PDB)
K418 D421 D422 R425 K428 K431 K432
Binding residue
(residue number reindexed from 1)
K91 D94 D95 R98 K101 K104 K105
Enzymatic activity
Enzyme Commision number 3.6.5.4: signal-recognition-particle GTPase.
Gene Ontology
Molecular Function
GO:0003924 GTPase activity
GO:0005525 GTP binding
GO:0008312 7S RNA binding
Biological Process
GO:0006614 SRP-dependent cotranslational protein targeting to membrane
Cellular Component
GO:0048500 signal recognition particle

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Molecular Function

View graph for
Biological Process

View graph for
Cellular Component
External links
PDB RCSB:5aka, PDBe:5aka, PDBj:5aka
PDBsum5aka
PubMed25775537
UniProtP0AGD7|SRP54_ECOLI Signal recognition particle protein (Gene Name=ffh)

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