Structure of PDB 8ipb Chain MB Binding Site BS01

Receptor Information

>8ipb Chain MB (length=110) Species: 4565 (Triticum aestivum)

VKGRTGQRVRLYVRGTILGYKRSKSNQYETASLVQIEGVNTREDVAWYGG
KRMAYVYKAKTKSNGTHYRCIWGKVSRPHGNTGVVRAKFTSNLPAEAMGK
KVRVFMYPSS

Ligand information

>8ipb Chain RB (length=3147)

gcgcgaccccaggucaggcgggacuaccgcugaguuuaagcauauaaaua
agcggaggagaagaaacuuacaaggauuccccuaguaacggcgagcgaac
cgggagcagcccagcuugagaaucgggcggcugugccguccgaauuguag
ucuggagaggcguccucagcgacggaccgggcccaaguccccuggaaagg
ggcgccugggagggugagagccccguccggcccggacccugucgccccac
gaggcgccgucaacgagucggguuguuugggaaugcagcccaaaucgggc
gguagacuccguccaaggcuaaauacaggcgagagaccgauagcgaacaa
guaccgcgagggaaagaugaaaaggacuuugaaaagagagucaaagagug
cuugaaauugccgggagggaagcggaugggggccggcgaugcgccccggc
gcucggggcguggacuguugucggccgcgccggcggccaaagcccggggg
cuccgcgcccccggcagccgucgucggcacggccgguacccgcgcgccga
aaggcgugccccucggggcacugcgcugcaacgcccugcgggcucuccau
ccgacccgucuugaaacacggaccaaggagucugacaugcgugcgagucg
acggguucugaaaccugggaugcgcaaggaagcugacgagcgggaggccc
ucacgggccgcaccgcuggccgacccugaucuucugugaaggguucgagu
uggagcacgccugucgggacccgaaagauggugaacuaugccugagcggg
gcgaagccagaggaaacucugguggaggcucgaagcgauacugacgugca
aaucguucgucugacuuggguauaggggcgaaagacuaaucgaaccaucu
aguagcugguucccuccgaaguuucccucaggauagcuggagcccauuac
gaguucuaucagguaaagccaaugauuagaggcauuggggacgcaacguc
cucgaccuauucucaaacuuuaaauagguaggauggcgcggcugcuucgg
ugagccgugccauggaaucgggugcuccaagugggccauuuuugguaagc
agaacuggcgaugcgggaugaaccggaagccggguuacggugcccaacug
cgcgcuaaccuagaacccacaaaggguguuggucgauuaagacagcagga
cgguggucauggaagucgaaauccgcuaaggaguguguaacaacucaccu
gccgaaucaacuagccccgaaaauggauggcgcugaagcgcgcgacccac
acccggccaucugggcgagugccaugccccgaugaguaggagggcgcggc
ggccgaugcaaaacccggggcgcgagcccgggcggagcggccgucggugc
agaucuuggugguaguagcaaauauucaaaugagaacuuugaaggccgaa
gaggagaaagguuccaugugaacggcacuugcacauggguaagccgaucc
uaagggaagggguaaccccggcagauagcgcgaucacgcgcauccccgaa
agggaaucggguuaagauuucccgagccgggauguggcgguugacggcga
cguuaggaaguccggagacgccggcgggggccucgggaagaguuaucuuu
ucugcuuaacggccugccaacccuggaaacgguucagccggagguagggu
ccaguggccggaagagcacacgucgcgcgguguccggugcgcccccggcg
gcccaugaaaauccggaggaccgaguaccguucacgcccggucguacuca
uaaccgcaucaggucuccaaggugaacagccucuggccaauggaacaaug
uaggcaagggaagucggcaaaacggauccguaacuucgggaaaaggauug
gcucugaggacugacagucgacucagaacugguacggacaaggggaaucc
gacuguuuaauuaaaacaaagcauugcgaugguccucgcggaugcugacg
caaugugauuucugcccagugcucugaaugucaaagugaagaaauucaac
caagcgcggguaaacggcgggaguaacuaugacucucuuaagguagccaa
augccucgucaucuaauuagugacgcgcaugaaugaauuaacgagauucc
cacugucccugucuacuauccagcgaaaccacagccaagggaacgggcuu
ggcggaaucagcggggaaagaagacccuguugagcuugacucuaguccga
cuuugugaaaugaauuuuacuuauuccgugggucggaagcggggcaugcc
ccuccuuuuggcuccaaggcccggucuuaccgggccgauccgggcggaag
acauugucagguggggaguuuggcuggggcggccaaucuguuaaaagaua
acgcagguguccuaagaugagcucaacgagaacagaaaucucguguggaa
caaaaggguaaaagcucguuugauucugauuuccaguacgaauacgaacc
gugaaagcguggccuaucgauccuuuagaucuucggaguuugaagcuaga
ggugucagaaaaguuaccacagggauuacuggcuuguggcagccaagcgu
ucauagcgacguugcuuuuugauccuucgaugucggcucuuccuaucauu
gcgaagcagaauucaccaaguguuggauuguucacccaccaauagggaac
gugagcuggguuuagaccgucgugagacagguuaguuuuacccuacugau
gacagugucgcgauaguaauucaaccuaguacgagaggaaccguugauuc
acacaauuggucaucgcgcuugguugaaaagccaguggcgcgaagcuacc
gugugccggauuaugacugaacgccucuaagucagaauccaagcuagcau
gcgacgccugcgcccgccgcccgccccgacccacguuaggggcgcuugcg
cccccaagggcccgugccauuggcuaagccgguccggccgaagugccgcg
gucggccgccucgaagcucccuucccaacgggcggugggcugaauccuuu
gcagacgacuuaaauacgcgacggggcauuguaaguggcagaguggccuu
gcugccacgauccacugagauccaguccccgggucgcacggauucgu

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

Receptor-Ligand Complex Structure

Structure summary

• PDB: 8ipb Boric acid intercepts 80S ribosome migration from AUG-stop by stabilizing eRF1.
• Resolution: 3.4 Å
• Binding residue (original residue number in PDB): V2 K3 R5 T6 G7 Q8 R9 V10 R11 L12 Y13 R15 K22 R23 S24 K25 N27 Q28 Y29 E30 R43 G50 R53 Y58 K59 A60 T62 K63 S64 N65 G66 T67 Y69 K75 R78 H80 G81 N82 T83 R87 K89 S92 N93 P95 A96 E97 R104
• Binding residue (residue number reindexed from 1): V1 K2 R4 T5 G6 Q7 R8 V9 R10 L11 Y12 R14 K21 R22 S23 K24 N26 Q27 Y28 E29 R42 G49 R52 Y57 K58 A59 T61 K62 S63 N64 G65 T66 Y68 K74 R77 H79 G80 N81 T82 R86 K88 S91 N92 P94 A95 E96 R103

Gene Ontology

Molecular Function

• GO:0003735 structural constituent of ribosome

Biological Process

• GO:0002181 cytoplasmic translation
• GO:0006412 translation
• GO:0042273 ribosomal large subunit biogenesis

Cellular Component

• GO:0005840 ribosome
• GO:0022625 cytosolic large ribosomal subunit
• GO:1990904 ribonucleoprotein complex

External links

• PDB: RCSB:8ipb, PDBe:8ipb, PDBj:8ipb
• PDBsum: 8ipb
• PubMed: 38267667
• UniProt: A0A0C4BK99