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Overall structure of the yeast spliceosome immediately after branching.

Analyse Overall structure of the yeast spliceosome immediately after branching. in the GL1X research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides, crosslinks and neighbours on the 3D structure.

PDB
5LJ5
Type
protein + RNA
Length
12,398 residues
Chains
45
Method
electron microscopy
Collection
MolNFT v1 / PDB
Contract
0xDE3723766Bc32dcACD03C17BaA400A7B36837Eba
Owner
0x3396CDB397284571d12822B4ae1189a8E22AAAAA
Molecule
U5 snrna (small nuclear RNA); Exon 1 (5' exon) of UBC4 pre-mRNA; Intron of UBC4 pre-mRNA…
EC
3.6.4.13, 6.3.2.-
UniProt
P33334, P32639, P28320, P53854, P36048, P21374, A0A162ERE7, Q12417, P28004, P25337, Q12046, P38241, Q03654, A0A162GIZ3, Q03375, Q12309, Q04048, P40018, P43321, Q12330, P54999, P40204, Q02260, Q06217, Q08963, P40567, P15938, P32523, Q06091
Ligands
GTP, ZN, MG
Pockets
20 · best druggability 0.89

Structure

electron microscopy · 39 distinct chains · 41% helix, 18% strand (DSSP).

ChainMoleculeTypeResiduesSecondary structureUniProt
UU5 snrna (small nuclear RNA)rna141——
EExon 1 (5' exon) of UBC4 pre-mRNArna16——
IIntron of UBC4 pre-mRNArna33——
ZU2 snrna (small nuclear RNA)rna171——
VU6 snrna (small nuclear RNA)rna97——
APre-mRNA-splicing factor 8protein216843% helix, 13% strandP33334
BPre-mRNA-splicing helicase BRR2 (EC 3.6.4.13)protein170745% helix, 17% strandP32639
DProtein CWC16protein11411% helix, 32% strandP28320
FPre-mRNA-splicing factor CWC25protein4674% helix, 0% strandP53854
CPre-mRNA-splicing factor SNU114protein88236% helix, 17% strandP36048
GPre-mRNA-splicing factor ISY1protein9760% helix, 1% strandP21374
HCWC22protein39974% helix, 0% strandA0A162ERE7
JPre-mRNA-splicing factor PRP46protein3263% helix, 42% strandQ12417
KPre-mRNA-processing protein 45protein16339% helix, 6% strandP28004
LPre-mRNA-splicing factor BUD31protein15552% helix, 0% strandP25337
MPre-mRNA-splicing factor CWC2protein25233% helix, 14% strandQ12046
NPre-mRNA-splicing factor SLT11protein20941% helix, 14% strandP38241
OPre-mRNA-splicing factor CEF1protein28369% helix, 0% strandQ03654
PCWC15protein360% helix, 0% strandA0A162GIZ3
RPre-mRNA-splicing factor CWC21protein9762% helix, 2% strandQ03375
SPre-mRNA-splicing factor CLF1protein46482% helix, 0% strandQ12309
TPre-mRNA-splicing factor SYF1protein59281% helix, 0% strandQ04048
b, kSmall nuclear ribonucleoprotein-associated protein Bprotein804% helix, 53% strandP40018
d, nSmall nuclear ribonucleoprotein sm D3protein8216% helix, 46% strandP43321
e, pSmall nuclear ribonucleoprotein Eprotein7519% helix, 36% strandQ12330
f, qSmall nuclear ribonucleoprotein Fprotein7210% helix, 53% strandP54999
g, rSmall nuclear ribonucleoprotein Gprotein690% helix, 48% strandP40204
hSmall nuclear ribonucleoprotein sm D1protein8215% helix, 48% strandQ02260
j, mSmall nuclear ribonucleoprotein sm D2protein9423% helix, 39% strandQ06217
WU2 small nuclear ribonucleoprotein a'protein16421% helix, 5% strandQ08963
YU2 small nuclear ribonucleoprotein B''protein8426% helix, 18% strandP40567
lSmall nuclear ribonucleoprotein sm D1protein798% helix, 8% strandQ02260
QPre-mRNA-splicing factor ATP-dependent RNA helicase PRP16 (EC 3.6.4.13)protein61941% helix, 13% strandP15938
tPre-mRNA-processing factor 19 (EC 6.3.2.-)protein43817% helix, 39% strandP32523
uPre-mRNA-processing factor 19 (EC 6.3.2.-)protein43716% helix, 40% strandP32523
vPre-mRNA-processing factor 19 (EC 6.3.2.-)protein42617% helix, 39% strandP32523
wPre-mRNA-processing factor 19 (EC 6.3.2.-)protein43516% helix, 40% strandP32523
sPre-mRNA-splicing factor SNT309protein11069% helix, 0% strandQ06091
xUnknownprotein13292% helix, 0% strand—

Ligands and binding sites

  • GTP · Guanosine-5'-triphosphate · ligand · chains C
  • ZN · Zinc ion · metal · 7 copies · chains D, L, V, M, N
  • MG · Magnesium ion · metal · 2 copies · chains E, I, V

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
18930.890.92105empty
210350.890.9098GTP
39120.880.9197empty
47290.870.9192empty
510500.870.8890empty

Interfaces

158 interfaces between chains.

  • A–C · 4801 Ų buried · 44 hydrogen bonds · protein-protein
  • U–A · 3959 Ų buried · 71 hydrogen bonds · protein-nucleic
  • A–K · 2199 Ų buried · 11 hydrogen bonds · protein-protein
  • Z–A · 1997 Ų buried · 44 hydrogen bonds · protein-nucleic
  • A–H · 1910 Ų buried · 25 hydrogen bonds · protein-protein

Modifications

Observed in the structure: 2 disulfide (disulfide).

Compared structures

  • 5LJ5 · Overall structure of the yeast spliceosome immediately after branching. · the same entry in another collection · chain G against G, TM-score 1.00

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