Structure of PDB 8ipb Chain HB Binding Site BS01

Receptor Information

>8ipb Chain HB (length=205) Species: 4565 (Triticum aestivum)

GRRPARCYRQIKNKPYPKSRYCRGVPDPKIRIYDVGMKKKGVDEFPSCVH
LVSWEKENVSSEALEAARIACNKYMTKNAGKDAFHLRVRVHPYHVLRINK
QTGMRGAFGKPLGTCARVDIGQVLLSVRCKESNAVHADEALRRAKFKFPG
RQKIIRSRKWGFTKFNRADYIKYKSEGRIVPDGVNAKLLGVHGPIAKRAP
GQAIL

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): R4 P5 R7 C8 K13 N14 K15 P16 Y17 Y22 Y34 D35 K39 E63 A64 A67 K78 R88 R90 H92 Y94 R98 N100 M115 R116 G117 A118 F119 Q133 R154 F157 K158 P160 D193 N196 K198
• Binding residue (residue number reindexed from 1): R3 P4 R6 C7 K12 N13 K14 P15 Y16 Y21 Y33 D34 K38 E62 A63 A66 K77 R87 R89 H91 Y93 R97 N99 M104 R105 G106 A107 F108 Q122 R143 F146 K147 P149 D182 N185 K187

Gene Ontology

Molecular Function

• GO:0003735 structural constituent of ribosome

Biological Process

• GO:0000027 ribosomal large subunit assembly
• GO:0006412 translation

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: A0A3B6HUM3