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S. cerevisiae spliceosomal post-catalytic P complex

Analyse S. cerevisiae spliceosomal post-catalytic P complex in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
6BK8
Type
protein + RNA
Length
10,643 residues
Chains
46
Method
electron microscopy
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
U2 snrna; U5 snrna; U6 snrna; RNA (34-mer); RNA (59-mer); Pre-mRNA-splicing factor PRP8…
EC
3.6.4.13, 2.3.2.27
UniProt
P33334, P36048, Q12417, P28004, P38241, Q12046, Q03772, P25337, Q03375, P53333, P40968, P33411, Q02775, P24384, P53277, Q03654, Q12309, Q04048, Q06217, P54999, Q12330, P40204, P40018, P43321, Q02260, P40567, Q08963, P32523, Q06091
Ligands
IHP, GTP, ZN, MG
Pockets
20 · best druggability 0.89

Structure

electron microscopy · 43 distinct chains · 41% helix, 16% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
2U2 snrnarna135——
5U5 snrnarna103——
6U6 snrnarna102——
eRNA (34-mer)rna34——
iRNA (59-mer)rna59——
APre-mRNA-splicing factor PRP8protein196045% helix, 11% strandP33334
BPre-mRNA-splicing factor SNU114protein89935% helix, 21% strandP36048
DPre-mRNA-splicing factor PRP46protein3595% helix, 41% strandQ12417
EPre-mRNA-processing protein 45protein18636% helix, 4% strandP28004
FPre-mRNA-splicing factor SLT11protein19935% helix, 13% strandP38241
GPre-mRNA-splicing factor CWC2protein25527% helix, 13% strandQ12046
HPre-mRNA-splicing factor CWC15protein7017% helix, 1% strandQ03772
IPre-mRNA-splicing factor BUD31protein15648% helix, 0% strandP25337
KPre-mRNA-splicing factor CWC21protein8266% helix, 4% strandQ03375
LPre-mRNA-splicing factor CWC22protein41271% helix, 0% strandP53333
MPre-mRNA-processing factor PRP17protein3263% helix, 43% strandP40968
NPre-mRNA-splicing factor PRP18protein16765% helix, 0% strandP33411
OPre-mRNA-splicing factor SLU7protein22932% helix, 7% strandQ02775
PPre-mRNA-splicing factor ATP-dependent RNA helicase PRP22 (EC 3.6.4.13)protein65342% helix, 17% strandP24384
RPre-mRNA-splicing factor SYF2protein10164% helix, 8% strandP53277
SPre-mRNA-splicing factor CEF1protein23855% helix, 2% strandQ03654
TPre-mRNA-splicing factor CLF1protein48381% helix, 0% strandQ12309
UPre-mRNA-splicing factor SYF1protein63777% helix, 0% strandQ04048
XUnknown protein fragmentprotein21973% helix, 1% strand—
YUnknown protein fragmentprotein1688% helix, 0% strand—
aSmall nuclear ribonucleoprotein sm D2protein9423% helix, 43% strandQ06217
b, mSmall nuclear ribonucleoprotein Fprotein7210% helix, 47% strandP54999
c, lSmall nuclear ribonucleoprotein Eprotein7519% helix, 32% strandQ12330
d, nSmall nuclear ribonucleoprotein Gprotein690% helix, 45% strandP40204
fSmall nuclear ribonucleoprotein-associated protein Bprotein804% helix, 49% strandP40018
gSmall nuclear ribonucleoprotein sm D3protein8213% helix, 38% strandP43321
hSmall nuclear ribonucleoprotein sm D1protein8215% helix, 44% strandQ02260
kSmall nuclear ribonucleoprotein-associated protein Bprotein780% helix, 32% strandP40018
oSmall nuclear ribonucleoprotein sm D3protein7810% helix, 41% strandP43321
pSmall nuclear ribonucleoprotein sm D1protein798% helix, 14% strandQ02260
qSmall nuclear ribonucleoprotein sm D2protein9317% helix, 34% strandQ06217
rLEA1protein8426% helix, 18% strandP40567
sMSL1protein16421% helix, 5% strandQ08963
uPre-mRNA-processing factor PRP19 (EC 2.3.2.27)protein43516% helix, 40% strandP32523
vPre-mRNA-processing factor PRP19 (EC 2.3.2.27)protein11863% helix, 5% strandP32523
wPre-mRNA-processing factor PRP19 (EC 2.3.2.27)protein43817% helix, 39% strandP32523
xPre-mRNA-processing factor PRP19 (EC 2.3.2.27)protein11660% helix, 8% strandP32523
yPre-mRNA-splicing factor SNT309protein11069% helix, 0% strandQ06091

Ligands and binding sites

  • IHP · Inositol hexakisphosphate · ligand · chains A, O
  • GTP · Guanosine-5'-triphosphate · ligand · chains B
  • ZN · Zinc ion · metal · 7 copies · chains F, G, I, O
  • MG · Magnesium ion · metal · 5 copies · chains 6, e, B

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

20 pockets found on a 1 Å grid, 20 with a druggability of 0.5 or more.

PocketVolume (ų)DruggabilityBuriednessLining residuesInside
19330.890.92111MG
210560.890.91122empty
310500.880.90106empty
49050.880.9186empty
57880.860.9084MG

Interfaces

148 interfaces between chains.

  • A–O · 7341 Ų buried · 64 hydrogen bonds · protein-protein
  • A–B · 5182 Ų buried · 44 hydrogen bonds · protein-protein
  • 5–A · 3653 Ų buried · 61 hydrogen bonds · protein-nucleic
  • S–T · 2509 Ų buried · 30 hydrogen bonds · protein-protein
  • e–A · 2277 Ų buried · 17 hydrogen bonds · protein-nucleic

Modifications

Observed in the structure: 3 disulfide (disulfide).

Compared structures

  • 6BK8 · S. cerevisiae spliceosomal post-catalytic P complex · the same entry in another collection · chain G against G, TM-score 1.00

Analyse

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