Structure of PDB 8h6k Chain 5B

Receptor sequence

>8h6k5B (length=2253) 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
APSQQRQQIAEIEKQTKEQSQLTATQTRTVNKHGDEIITSTTSNYETQTF
SSKTEWRVRAISAANLHLRTNHIYVSSDDIKETGYTYILPKNVLKKFICI
SDLRAQIAGYLYGVSPPDNPQVKEIRCIVMVPQWGTHQTVHLPGQLPQHE
YLKEMEPLGWIHTQPNESPQLSPQDVTTHAKIMADNPSWDGEKTIIITCS
FTPGSCTLTAYKLTPSGYEWGRQNTDKGNNPKGYLPSHYERVQMLLSDRF
LGFFMVPAQSSWNYNFMGVRHDPNMKYELQLANPKEFYHEVHRPSHFLNF
ALL

3D structure

• PDB: 8h6k Structural Insights into Human Exon-defined Spliceosome Prior to Activation.
• Chain: 5B
• Resolution: 2.7 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	5B	V441 K533 K536 Q587 Y592 R593 Y596 R603 K606 S1305 K1306 G1550 F1551 H1563 K1565	V386 K478 K481 Q532 Y537 R538 Y541 R548 K551 S1238 K1239 G1483 F1484 H1496 K1498
BS02	rna	5B	W134 R217 G222 S223 T224 K267 E280 R409 R417 R419 R420 D423 P425 K452 N457 K460 H461 P464 K465 A466 Q467 K468 K469 R470 R474 K595 Y596 K597 R600 R635 F639 R642 G643 P646 K1294 I1301 M1307	W79 R162 G167 S168 T169 K212 E225 R354 R362 R364 R365 D368 P370 K397 N402 K405 H406 P409 K410 A411 Q412 K413 K414 R415 R419 K540 Y541 K542 R545 R580 F584 R587 G588 P591 K1227 I1234 M1240
BS03	rna	5B	E534 K537 F1509 D1556 I1574 R1578 H1615 R1617 Q2032 N2048 K2049 T2056 T2059 S2060	E479 K482 F1442 D1489 I1507 R1511 H1548 R1550 Q1965 N1981 K1982 T1989 T1992 S1993
BS04	rna	5B	Q858 T887 R889 A890 F891	Q791 T820 R822 A823 F824
BS05	IHP	5B	R163 K442 H584 K606 K609 Y613 K623	R108 K387 H529 K551 K554 Y558 K568

Gene Ontology

Molecular Function

• GO:0003723 RNA binding
• GO:0005515 protein binding
• GO:0008233 peptidase activity
• GO:0008237 metallopeptidase 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:8h6k, PDBe:8h6k, PDBj:8h6k
• PDBsum: 8h6k
• PubMed: 38658629
• UniProt: Q6P2Q9|PRP8_HUMAN Pre-mRNA-processing-splicing factor 8 (Gene Name=PRPF8)