Structure of PDB 6zqb Chain UX Binding Site BS02

Receptor Information

>6zqb Chain UX (length=174) Species: 559292 (Saccharomyces cerevisiae S288C)

TRKFGLVKRTLNTKKDQRLKKNQENTRNIPQVSSALFFQYNQAIKPPYQV
LIDTNFINFSIQKKVDIVRGMMDCLLAKCNPLITDCVMAELEKLGPKYRI
ALKLARDPRIKRLSCSHKGTYADDCLVHRVLQHKCYIVATNDAGLKQRIR
KIPGIPLMSVGGHAYVIEKLPDVF

Ligand information

>6zqb Chain D3 (length=1198)

aagauaguuaucugguugauccugccagucauaugcuugucucagccaug
cagucuaaguauaagcaauuuauacagugaaacugcgaaugcucauuaaa
ucaguuaucguuuauuugauagucaugguauaacugugguaauucuagag
cuaaaaucucgacccuuuggaagagauguauuuauuagaucaaugucuuc
ggacucuuugaugaauaacuuuucgaaucgcauggccuugugcuggcgau
gguucauucaaauuucugcccuaucaacuuucgaugguaggauaguggcc
uaccaugguuucaacggguaacggggaauaaggguucgauuccggagagg
gagccugagaaacggcuaccacauccaaggaagggcaggcuuacccaauc
cuaauucagggagguagugacaauaaauaacgauacagggcccauucggg
ucuuguaauuggaaugaguacaauguaaauaccuuaacgaggaacaauug
gagggcaagucuggugccagcagccgcgguaauuccagcuccaauagcgu
auauugcucguaguugaacuuugggcccgguuggccggucggauuuccaa
cggggccuuuauuaauagggacggucgggggcaucaguauucaauuguca
gaggugaaauucuuggauuuauugaagacuaacuacugcgaaagcauuug
ccaaggacguuuucauuaaucaagaacgaaaaacuaugccgacuagggau
cgggugguguuuuuuuaaugacccacucggcaccuuacgaggaguauggu
cgcaaggcugaaacuuaaaggaauugacggaagggcaccaccaggagugg
agccugcggaaacucaccagguccagacacaauauuugugggugguggug
caugugaugcccuuguucuggcgcgcgcuacacugacggagccagcgagu
cuaaccuuggccgagaggucuugguaaaaacuccgucggggaacgaggaa
uuccuaguaagcgcaagucaucagcuugcguugauuacgucccugcccuu
uguacacaccgcccgucgcuaguaccgauugaauggcuuagugaggccuc
aggaucugcuuagagaagggggcaacuccucucagagcggagauuuggac
aaacuuggucauuuagaggaacuaaguuuccguaggugaaccugcgga

..............................<<<<<<...<....<<<.<<
<.<<....<.....<............>....>.>>.....<<<......
.<<<..<<..<<....<<<..............<<.<<<.....>>>.>>
.....<<<<<..<......>..>>>>>....<<<<...<<<<<.<<<...
.>>>...>>>>>..>>>>.........<<<<..<<<.....>>>.>>>>.
...>>>...>>>>..>>>.<<<....<<.....<<<<<<<<.......>>
>>>>>>.>>......>>>.....<<...............>>..>>>.<<
.<<<..........>>>.>>.<.<<....>>.>.>>>>>>..<<<....<
<<.....>>>..>>>.........>.....<<<<<<<.<<<<<....>>>
>>.>>>.>>>>......<<..<...........>..>>.........<<<
<<<.......<<<....>>>..................>>>>>>..>>>>
>>...<.<<...<<<.<<.....<<<<<.<<<<<............>>>>
>.>>>>>....>>....<<<<<<.<<...<<<<..<<..<<<<<<.<...
<<<......>>>......>.>>>>>>..>>.......<<....>>...>>
>>...>>>>>.>>>...>>>...>>.>............<<...<<<..<
<<<<<<<.<<<........>>>>>>>>>>>..>>>..>>...........
.......<<.........>>.....<<<<<<<<<<<<..<<.<<<<<<..
<<<.<<<<........<<<<..<....<<<<<...>>>>>......<<<<
.......>>>>...>..>>>>>>>>.>>>.....<<<<<<<.........
...<<<..<<<<....>>>>..>>>.....>>>>>>>............>
>>>>>....<<<<<<<<.......>>>>>>>>......>>...>>>>>>>
............>>>>>..<<<<.<<....<<<<<<<<.<<.....<<..
....<<<<<<<.<<<<.<.<......>.>>>>>.>>>>>>>.....>>..
...>>.>>>>>>>>...>>.>>>>....<<<<<<<<....>>>>>>>>

Receptor-Ligand Complex Structure

Structure summary

• PDB: 6zqb 90 S pre-ribosome transformation into the primordial 40 S subunit.
• Resolution: 3.9 Å
• Binding residue (original residue number in PDB): R42 Q162 R163
• Binding residue (residue number reindexed from 1): R27 Q147 R148

Gene Ontology

Molecular Function

• GO:0004521 RNA endonuclease activity
• GO:0004540 RNA nuclease activity
• GO:0005515 protein binding
• GO:0008270 zinc ion binding

Biological Process

• GO:0000447 endonucleolytic cleavage in ITS1 to separate SSU-rRNA from 5.8S rRNA and LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA)
• GO:0000472 endonucleolytic cleavage to generate mature 5'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA)
• GO:0000480 endonucleolytic cleavage in 5'-ETS of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA)
• GO:0006364 rRNA processing
• GO:0030490 maturation of SSU-rRNA
• GO:0042254 ribosome biogenesis

Cellular Component

• GO:0005634 nucleus
• GO:0005654 nucleoplasm
• GO:0005730 nucleolus
• GO:0032040 small-subunit processome

External links

• PDB: RCSB:6zqb, PDBe:6zqb, PDBj:6zqb
• PDBsum: 6zqb
• PubMed: 32943521
• UniProt: Q05498|FCF1_YEAST rRNA-processing protein FCF1 (Gene Name=FCF1)