Structure of PDB 7ssn Chain Y Binding Site BS01

Receptor Information

>7ssn Chain Y (length=85) Species: 83333 (Escherichia coli K-12)

NIKSAKKRAIQSEKARKHNASRRSMMRTFIKKVYAAIEAGDKAAAQKAFN
EMQPIVDRQAAKGLIHKNKAARHKANLTAQINKLA

Ligand information

>7ssn Chain 3 (length=1539)

aauugaagaguuugaucauggcucagauugaacgcuggcggcaggccuaa
cacaugcaagucgaacgguaacaggaagaagcuugcuucuuugcugacga
guggcggacgggugaguaaugucugggaaacugccugauggagggggaua
acuacuggaaacgguagcuaauaccgcauaacgucgcaagaccaaagagg
gggaccuucgggccucuugccaucggaugugcccagaugggauuagcuag
uaggugggguaacggcucaccuaggcgacgaucccuagcuggucugagag
gaugaccagccacacuggaacugagacacgguccagacuccuacgggagg
cagcaguggggaauauugcacaaugggcgcaagccugaugcagccaugcc
gcguguaugaagaaggccuucggguuguaaaguacuuucagcggggagga
agggaguaaaguuaauaccuuugcucauugacguuacccgcagaagaagc
accggcuaacuccgugccagcagccgcgguaauacggagggugcaagcgu
uaaucggaauuacugggcguaaagcgcacgcaggcgguuuguuaagucag
augugaaauccccgggcucaaccugggaacugcaucugauacuggcaagc
uugagucucguagagggggguagaauuccagguguagcggugaaaugcgu
agagaucuggaggaauaccgguggcgaaggcggcccccuggacgaagacu
gacgcucaggugcgaaagcguggggagcaaacaggauuagauacccuggu
aguccacgccguaaacgaugucgacuuggagguugugcccuugaggcgug
gcuuccggagcuaacgcguuaagucgaccgccuggggaguacggccgcaa
gguuaaaacucaaaugaauugacgggggcccgcacaagcgguggagcaug
ugguuuaauucgaugcaacgcgaagaaccuuaccuggucuugacauccac
ggaaguuuucagagaugagaaugugccuucgggaaccgugagacaggugc
ugcauggcugucgucagcucguguugugaaauguuggguuaagucccgca
acgagcgcaacccuuauccuuuguugccagcgguccggccgggaacucaa
aggagacugccagugauaaacuggaggaagguggggaugacgucaaguca
ucauggcccuuacgaccagggcuacacacgugcuacaauggcgcauacaa
agagaagcgaccucgcgagagcaagcggaccucauaaagugcgucguagu
ccggauuggagucugcaacucgacuccaugaagucggaaucgcuaguaau
cguggaucagaaugccacggugaauacguucccgggccuuguacacaccg
cccgucacaccaugggaguggguugcaaaagaaguagguagcuuaaccuu
cgggagggcgcuuaccacuuugugauucaugacuggggugaagucguaac
aagguaaccguaggggaaccugcgguuggaucaccuccu

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

Receptor-Ligand Complex Structure

Structure summary

• PDB: 7ssn Time-resolved cryo-EM visualizes ribosomal translocation with EF-G and GTP.
• Resolution: 3.2 Å
• Binding residue (original residue number in PDB): N2 K4 S5 K8 R9 Q12 R17 H19 N20 S22 R23 S25 R28 T29 Y35 Q54 P55 D58 R59 K63 H67 K68 N69 K70 A72 R73 K75 A76 N77
• Binding residue (residue number reindexed from 1): N1 K3 S4 K7 R8 Q11 R16 H18 N19 S21 R22 S24 R27 T28 Y34 Q53 P54 D57 R58 K62 H66 K67 N68 K69 A71 R72 K74 A75 N76

Gene Ontology

Molecular Function

• GO:0003723 RNA binding
• GO:0003735 structural constituent of ribosome
• GO:0008073 ornithine decarboxylase inhibitor activity
• GO:0019843 rRNA binding
• GO:0070181 small ribosomal subunit rRNA binding

Biological Process

• GO:0000028 ribosomal small subunit assembly
• GO:0002181 cytoplasmic translation
• GO:0006412 translation

Cellular Component

• GO:0005737 cytoplasm
• GO:0005829 cytosol
• GO:0005840 ribosome
• GO:0015935 small ribosomal subunit
• GO:0022627 cytosolic small ribosomal subunit
• GO:1990904 ribonucleoprotein complex

External links

• PDB: RCSB:7ssn, PDBe:7ssn, PDBj:7ssn
• PDBsum: 7ssn
• PubMed: 34903725
• UniProt: P0A7U7|RS20_ECOLI Small ribosomal subunit protein bS20 (Gene Name=rpsT)