Structure of PDB 8qp8 Chain A

Receptor sequence

>8qp8A (length=1918) Species: 9606 (Homo sapiens)

KEDMPPEHVRKIIRDHDKRVYLGALKYMPHAVLKLLENMPMPWEQIRDVP
VLYHITGAISFVNEIPWVIEPVYISQWGSMWIMMRREKRDRRHFKRMRFP
PFDDEEPPLDYADNILDVEPLEAIQLELDPEEDAPVLDWFYDHQPLRDSR
KYVNGSTYQRWQFTLPMMSTLYRLANQLLTDLVDDNYFYLFDLKAFFTSK
ALNMAIPGGPKFEPLVRDINLQDEDWNEFNDINKIIIRQPIRTEYKIAFP
YLYNNLPHHVHLTWYHTPNVVFIKTEDPDLPAFYFDPLINPISHREPLPD
DDEEFELPEFVEPFLKDTPLYTDNTANGIALLWAPRPFNLRSGRTRRALD
IPLVKNWYREHCPAGQPVKVRVSYQKLLKYYVLNALKHRPPKAQKKRYLF
RSFKATKFFQSTKLDWVEVGLQVCRQGYNMLNLLIHRKNLNYLHLDYNFN
LKPVKTLTTKERKKSRFGNAFHLCREVLRLTKLVVDSHVQYRLGNVDAFQ
LADGLQYIFAHVGQLTGMYRYKYKLMRQIRMCKDLKHLIYYRFNTGPVGK
GPGCGFWAAGWRVWLFFMRGITPLLERWLGNLLARSHFDLELRAAVMHDI
LDMMPEGIKQNKARTILQHLSEAWRCWKANIPWKVPGLPTPIENMILRYV
KAKADWWTNTAHYNRERIRRGATVDKTVCKKNLGRLTRLYLKAEQERQHN
YLKDGPYITAEEAVAVYTTTVHWLESRRFSPIPFPPLSYKHDTKLLILAL
ERLKEAYSVKSRLNQSQREELGLIEQAYDNPHEALSRIKRHLLTQRAFKE
VGIEFMDLYSHLVPVYDVEPLEKITDAYLDQYLWYEADKRRLFPPWIKPA
DTEPPPLLVYKWCQGINNLQDVWETSEGECNVMLESRFEKMYEKIDLTLL
NRLLRLIVDHNIADYMTAKNNVVINYKDMNHTNSYGIIRGLQFASFIVQY
YGLVMDLLVLGLHRASEMAGPPQMPNDFLSFQDIATEAAHPIRLFCRYID
RIHIFFRFTADEARDLIQRYLTEHPDPNNENIVGYNNKKCWPRDARMRLM
KHDVNLGRAVFWDIKNRLPRSVTTVQWENSFVSVYSKDNPNLLFNMCGFE
CRILPKCRTSYEEFTHKDGVWNLQNEVTKERTAQCFLRVDDESMQRFHNR
VRQILMASGSTTFTKIVNKWNTALIGLMTYFREAVVNTQELLDLLVKCEN
KIQTRIKIGLNSKMPSRFPPVVFYTPKELGGLGMLSMGHVLIPQSDLRWS
KQTDVGITHFRSQLIPNLYRYIQPWESEFIDSQRVWAEYALKRQEAIAQN
RRLTLEDLEDSWDRGIPRINTLFQKDRHTLAYDKGWRVRTDFKQYQVLKQ
NPFWWTHQRHDGKLWNLNNYRTDMIQALGGVEGILEHTLFKGTYFPTWEG
LFWEKASGFEESMKWKKLTNAQRSGLNQIPNRRFTLWWSPTINRANVYVG
FQVQLDLTGIFMHGKIPTLKISLIQIFRAHLWQKIHESIVMDLCQVFDQE
LDALEIETVQKETIHPRKSYKMNSSCADILLFASYKWNVSRPSLLADSKD
VMDSTTTQKYWIDIQLRWGDYDSHDIERYARAKFLDYTTDNMSIYPSPTG
VLIAIDLAYNLHSAYGNWFPGSKPLIQQAMAKIMKANPALYVLRERIRKG
LQLYSSSKTEWRVRAISAANLHLRTNHIYVSSDDIKETGYTYILPKNVLK
KFICISDLRAQIAGYLYGVSPPDNPQVKEIRCIVMVPQWGTHQTVHLPGQ
LPQHEYLKEMEPLGWIHTQPNESPQLSPQDVTTHAKIMADNPSWDGEKTI
IITCSFTPGSCTLTAYKLTPSGYEWGRQNTDKGNNPKGYLPSHYERVQML
LSDRFLGFFMVPAQSSWNYNFMGVRHDPNMKYELQLANPKEFYHEVHRPS
HFLNFALVYSADREDLYA

3D structure

• PDB: 8qp8 Structural insights into the cross-exon to cross-intron spliceosome switch
• Chain: A
• Resolution: 3.5 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	peptide	A	A687 H691 D695 K702	A594 H598 D602 K609
BS02	rna	A	H97 L100 K101 W134 G222 S223 T224 K267 E280 R284 R409 R417 R419 R420 D423 P425 K428 K452 N457 K460 H461 P463 P464 K465 A466 Q467 K468 K469 R470 R474 K595 Y596 K597 M599 Q601 R603 R635 F639 R642 G643 P646 L647	H30 L33 K34 W67 G155 S156 T157 K200 E213 R217 R336 R344 R346 R347 D350 P352 K355 K379 N384 K387 H388 P390 P391 K392 A393 Q394 K395 K396 R397 R401 K522 Y523 K524 M526 Q528 R530 R562 F566 R569 G570 P573 L574
BS03	peptide	A	Q1583 E1587 M1591 Q1595 D1598 K1611 T1613 I1614 H1615 P1616	Q1483 E1487 M1491 Q1495 D1498 K1511 T1513 I1514 H1515 P1516
BS04	IHP	A	R163 K442 H584 K609 H610 Y613 Y614 K623 G624	R96 K369 H511 K536 H537 Y540 Y541 K550 G551

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:8qp8, PDBe:8qp8, PDBj:8qp8
• PDBsum: 8qp8
• PubMed: 38778104
• UniProt: Q6P2Q9|PRP8_HUMAN Pre-mRNA-processing-splicing factor 8 (Gene Name=PRPF8)