Structure of PDB 8xxm Chain Sa Binding Site BS01

Receptor Information

>8xxm Chain Sa (length=102) Species: 9606 (Homo sapiens)

TKKRRNNGRAKKGRGHVQPIRCTNCARCVPKDKAIKKFVIRNIVEAAAVR
DISEASVFDAYVLPKLYVKLHYCVSCAIHSKVVRNRSREARKDRTPPPRF
RP

Ligand information

>8xxm Chain S2 (length=1723)

uaccugguugauccugccaguagcauaugcuugucucaaagauuaagcca
ugcaugucuaaguacgcacggccgguacagugaaacugcgaauggcucau
uaaaucaguuaugguuccuuuggucgcucgcuccucucccacuuggauaa
cugugguaauucuagagcuaauacaugccgacgggcgcugacccccuucg
cgggggggaugcgugcauuuaucaguggugacucuagauaaccucgggcc
gaucgcacgccccccguggcggcgacgacccauucgaacgucugcccuau
caacuuucgaugguagucgccgugccuaccauggugaccacgggugacgg
ggaaucaggguucgauuccggagagggagccugagaaacggcuaccacau
ccaaggaaggcagcaggcgcgcaaauuacccacucccgacccggggaggu
agugacgaaaaauaacaauacaggacucuuucgaggcccuguaauuggaa
ugaguccacuuuaaauccuuuaacgaggauccauuggagggcaagucugg
ugccagcagccgcgguaauuccagcuccaauagcguauauuaaaguugcu
gcaguuaaaaagcucguaguuggaucuuggcucucggccggggcccgaag
cguuuacuuugaaaaaauuagaguguucaaagcaggcccgagccgccugg
auaccgcagcuaggaauaauggaauaggaccgcgguucuauuuuguuggu
uuucggaacugaggccaugauuaagagggacggccgggggcauucguauu
gcgccgcuagaggugaaauucuuggaccggcgcaagacggaccagagcga
aagcauuugccaagaauguuuucauuaaucaagaacgaaagucggagguu
cgaagacgaucagauaccgucguaguuccgaccauaaacgaugccgaccg
gcgaugcggcggcguuauucccaugacccgccgggcagcuuccgggaaac
caaagucuuuggguuccggggggaguaugguugcaaagcugaaacuuaaa
ggaauugacggaagggcaccaccaggaguggagccugcggcuuaauuuga
cucaacacgggaaaccucacccggcccggacacggacaggauugacagau
ugauagcucuuucucgauuccgugggugguggugcauggccguucuuagu
ugguggagcgauuugucugguuaauuccgauaacgaacgagacucuggca
ugcuaacuaguuacgcgacccccgagcggucggcgucccccaacuucuua
gagggacaaguggcguucagccacccgagauugagcaauaacaggucugu
gaugcccuuagauguccggggcugcacgcgcgcuacacugacuggcucag
cgugugccuacccuacgccggcaggcgcggguaacccguugaaccccauu
cgugauggggaucggggauugcaauuauuccccaugaacgaggaauuccc
aguaagugcgggucauaagcuugcguugauuaagucccugcccuuuguac
acaccgcccgucgcuacuaccgauuggaugguuuagugaggcccucggau
cggccccgccggggucggcccacggcccuggcggagcgcugagaagacgg
ucgaacuugacuaucuagaggaaguaaaagucguaacaagguuuccguag
gugaaccugcggaaggaucauua

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

Receptor-Ligand Complex Structure

Structure summary

• PDB: 8xxm Human tumor suppressor PDCD4 directly interacts with ribosomes to repress translation.
• Resolution: 3.2 Å
• Binding residue (original residue number in PDB): T2 K3 K4 R5 R6 N7 N8 G9 R10 A11 K12 K13 G14 R15 G16 H17 Q19 R28 K32 K34 K37 K38 F39 Y68 V75 S76 I79 H80 V83 V84 R85 N86 R87 S88 R89 R92 R95 P98 R100
• Binding residue (residue number reindexed from 1): T1 K2 K3 R4 R5 N6 N7 G8 R9 A10 K11 K12 G13 R14 G15 H16 Q18 R27 K31 K33 K36 K37 F38 Y67 V74 S75 I78 H79 V82 V83 R84 N85 R86 S87 R88 R91 R94 P97 R99

Gene Ontology

Molecular Function

• GO:0003723 RNA binding
• GO:0003729 mRNA binding
• GO:0003735 structural constituent of ribosome
• GO:0005515 protein binding
• GO:0045296 cadherin binding

Biological Process

• GO:0002181 cytoplasmic translation
• GO:0006412 translation
• GO:0033119 negative regulation of RNA splicing

Cellular Component

• GO:0005654 nucleoplasm
• GO:0005737 cytoplasm
• GO:0005783 endoplasmic reticulum
• GO:0005791 rough endoplasmic reticulum
• GO:0005829 cytosol
• GO:0005840 ribosome
• GO:0015935 small ribosomal subunit
• GO:0016020 membrane
• GO:0022626 cytosolic ribosome
• GO:0022627 cytosolic small ribosomal subunit
• GO:0045202 synapse
• GO:0070062 extracellular exosome
• GO:0098556 cytoplasmic side of rough endoplasmic reticulum membrane
• GO:1990904 ribonucleoprotein complex

External links

• PDB: RCSB:8xxm, PDBe:8xxm, PDBj:8xxm
• PDBsum: 8xxm
• PubMed: 38641729
• UniProt: P62854|RS26_HUMAN Small ribosomal subunit protein eS26 (Gene Name=RPS26)