Structure of PDB 8r09 Chain A

Receptor sequence

>8r09A (length=2218) Species: 9606 (Homo sapiens)

AQKEDMPPEHVRKIIRDHGDMTNRKFRHDKRVYLGALKYMPHAVLKLLEN
MPMPWEQIRDVPVLYHITGAISFVNEIPWVIEPVYISQWGSMWIMMRREK
RDRRHFKRMRFPPFDDEEPPLDYADNILDVEPLEAIQLELDPEEDAPVLD
WFYDHQPLRDSRKYVNGSTYQRWQFTLPMMSTLYRLANQLLTDLVDDNYF
YLFDLKAFFTSKALNMAIPGGPKFEPLVRDINLQDEDWNEFNDINKIIIR
QPIRTEYKIAFPYLYNNLPHHVHLTWYHTPNVVFIKTEDPDLPAFYFDPL
INPISHRHSVKSQEPLPDDDEEFELPEFVEPFLKDTPLYTDNTANGIALL
WAPRPFNLRSGRTRRALDIPLVKNWYREHCPAGQPVKVRVSYQKLLKYYV
LNALKHRPPKAQKKRYLFRSFKATKFFQSTKLDWVEVGLQVCRQGYNMLN
LLIHRKNLNYLHLDYNFNLKPVKTLTTKERKKSRFGNAFHLCREVLRLTK
LVVDSHVQYRLGNVDAFQLADGLQYIFAHVGQLTGMYRYKYKLMRQIRMC
KDLKHLIYYRFNTGPVGKGPGCGFWAAGWRVWLFFMRGITPLLERWLGNL
LARQFEGQRVESHFDLELRAAVMHDILDMMPEGIKQNKARTILQHLSEAW
RCWKANIPWKVPGLPTPIENMILRYVKAKADWWTNTAHYNRERIRRGATV
DKTVCKKNLGRLTRLYLKAEQERQHNYLKDGPYITAEEAVAVYTTTVHWL
ESRRFSPIPFPPLSYKHDTKLLILALERLKEAYSVKSRLNQSQREELGLI
EQAYDNPHEALSRIKRHLLTQRAFKEVGIEFMDLYSHLVPVYDVEPLEKI
TDAYLDQYLWYEADKRRLFPPWIKPADTEPPPLLVYKWCQGINNLQDVWE
TSEGECNVMLESRFEKMYEKIDLTLLNRLLRLIVDHNIADYMTAKNNVVI
NYKDMNHTNSYGIIRGLQFASFIVQYYGLVMDLLVLGLHRASEMAGPPQM
PNDFLSFQDIATEAAHPIRLFCRYIDRIHIFFRFTADEARDLIQRYLTEH
PDPNNENIVGYNNKKCWPRDARMRLMKHDVNLGRAVFWDIKNRLPRSVTT
VQWENSFVSVYSKDNPNLLFNMCGFECRILPKCRTSYEEFTHKDGVWNLQ
NEVTKERTAQCFLRVDDESMQRFHNRVRQILMASGSTTFTKIVNKWNTAL
IGLMTYFREAVVNTQELLDLLVKCENKIQTRIKIGLNSKMPSRFPPVVFY
TPKELGGLGMLSMGHVLIPQSDLRWSKQTDVGITHFRSGMSHEEDQLIPN
LYRYIQPWESEFIDSQRVWAEYALKRQEAIAQNRRLTLEDLEDSWDRGIP
RINTLFQKDRHTLAYDKGWRVRTDFKQYQVLKQNPFWWTHQRHDGKLWNL
NNYRTDMIQALGGVEGILEHTLFKGTYFPTWEGLFWEKASGFEESMKWKK
LTNAQRSGLNQIPNRRFTLWWSPTINRANVYVGFQVQLDLTGIFMHGKIP
TLKISLIQIFRAHLWQKIHESIVMDLCQVFDQELDALEIETVQKETIHPR
KSYKMNSSCADILLFASYKWNVSRPSLLADSKDVMDSTTTQKYWIDIQLR
WGDYDSHDIERYARAKFLDYTTDNMSIYPSPTGVLIAIDLAYNLHSAYGN
WFPGSKPLIQQAMAKIMKANPALYVLRERIRKGLQLYSSEPTEPYLSSQN
YGELFSNQIIWFVDDTNVYRVTIHKTFEGNLTTKPINGAIFIFNPRTGQL
FLKIIHTSVWAGQKRLGQLAKWKTAEEVAALIRSLPVEEQPKQIIVTRKG
MLDPLEVHLLDFPNIVIKGSELQLPFQACLKVEKFGDLILKATEPQMVLF
NLYDDWLKTISSYTAFSRLILILRALHVNNDRAKVILKPDKTTITEPHHI
WPTLTDEEWIKVEVQLKDLILADYGKKNNVNVASLTQSEIRDIILGMEIS
APSQQRQQIATSNYETQTFSSKTEWRVRAISAANLHLRTNHIYVSSDDIK
ETGYTYILPKNVLKKFICISDLRAQIAGYLYGVSPPDNPQVKEIRCIVMV
PQWGTHQTVHLPGQLPQHEYLKEMEPLGWIHTQPNESPQLSPQDVTTHAK
IMADNPSWDGEKTIIITCSFTPGSCTLTAYKLTPSGYEWGRQNTDKGNNP
KGYLPSHYERVQMLLSDRFLGFFMVPAQSSWNYNFMGVRHDPNMKYELQL
ANPKEFYHEVHRPSHFLN

3D structure

• PDB: 8r09 Structural insights into the cross-exon to cross-intron spliceosome switch
• Chain: A
• Resolution: 4.3 Å

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)	Binding affinity
BS01	rna	A	N221 G222 T224 E280 D423 P425 N457 P464 K465 A466 Q467 K468 K595 Y596 K597 F639 F640 R642 G643 P646	N166 G167 T169 E225 D368 P370 N402 P409 K410 A411 Q412 K413 K540 Y541 K542 F584 F585 R587 G588 P591
BS02	rna	A	F540 S1305 K1306 G1550 F1551 M1562 G1564 K1565	F485 S1238 K1239 G1483 F1484 M1495 G1497 K1498
BS03	rna	A	D1556 R1578 A1579	D1489 R1511 A1512

Gene Ontology

Molecular Function

• GO:0003723 RNA binding
• GO:0005515 protein binding
• GO:0008233 peptidase activity
• GO:0017070 U6 snRNA binding
• GO:0030619 U1 snRNA binding
• GO:0030620 U2 snRNA binding
• GO:0030623 U5 snRNA binding
• GO:0070530 K63-linked polyubiquitin modification-dependent protein binding
• GO:0097157 pre-mRNA intronic binding
• GO:0140492 metal-dependent deubiquitinase activity

Biological Process

• GO:0000244 spliceosomal tri-snRNP complex assembly
• GO:0000375 RNA splicing, via transesterification reactions
• GO:0000398 mRNA splicing, via spliceosome
• GO:0006397 mRNA processing
• GO:0008380 RNA splicing
• GO:0071222 cellular response to lipopolysaccharide
• GO:0071356 cellular response to tumor necrosis factor

Cellular Component

• GO:0005634 nucleus
• GO:0005654 nucleoplasm
• GO:0005681 spliceosomal complex
• GO:0005682 U5 snRNP
• GO:0016020 membrane
• GO:0016607 nuclear speck
• GO:0030532 small nuclear ribonucleoprotein complex
• GO:0046540 U4/U6 x U5 tri-snRNP complex
• GO:0071005 U2-type precatalytic spliceosome
• GO:0071006 U2-type catalytic step 1 spliceosome
• GO:0071007 U2-type catalytic step 2 spliceosome
• GO:0071013 catalytic step 2 spliceosome

External links

• PDB: RCSB:8r09, PDBe:8r09, PDBj:8r09
• PDBsum: 8r09
• PubMed: 38778104
• UniProt: Q6P2Q9|PRP8_HUMAN Pre-mRNA-processing-splicing factor 8 (Gene Name=PRPF8)