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7AAV

Human pre-Bact-2 spliceosome core structure

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(r)
116 kDa U5 small nuclear ribonucleoprotein componentpolymer972109560.61UniProt (Q15029)
Pfam (PF16004)
Pfam (PF00009)
Pfam (PF03144)
Pfam (PF14492)
Pfam (PF03764)
Pfam (PF00679)
Homo sapiens (Human)Elongation factor Tu GTP-binding domain-containing protein 2,SNU114 homolog,hSNU114,U5 snRNP-specific protein,116 kDa,U5-116 kDa
2B
(Q)
Protein BUD31 homologpolymer14417032.81UniProt (P41223)
Pfam (PF01125)
Homo sapiens (Human)Protein EDG-2,Protein G10 homolog
3C
(L)
Cell division cycle 5-like proteinpolymer80292406.91UniProt (Q99459)
Pfam (PF13921)
Pfam (PF11831)
Homo sapiens (Human)Cdc5-like protein,Pombe cdc5-related protein
4D
(R)
Spliceosome-associated protein CWC15 homologpolymer22926674.41UniProt (Q9P013)
Pfam (PF04889)
Homo sapiens (Human)
5E
(K)
Microfibrillar-associated protein 1polymer43952050.51UniProt (P55081)
Pfam (PF06991)
Homo sapiens (Human)
6F
(G)
Pleiotropic regulator 1polymer51457280.81UniProt (O43660)
Pfam (PF00400)
Homo sapiens (Human)
7G
(Z)
MINX M3 pre-mRNApolymer23073712.41synthetic construct
8H
(8)
Pre-mRNA-processing factor 17polymer57965612.21UniProt (O60508)
Pfam (PF00400)
Homo sapiens (Human)Cell division cycle 40 homolog,EH-binding protein 3,Ehb3,PRP17 homolog,hPRP17
9I
(I)
Pre-mRNA-splicing factor 38Apolymer31237563.91UniProt (Q8NAV1)
Pfam (PF03371)
Pfam (PF12871)
Homo sapiens (Human)
10J
(A)
Pre-mRNA-processing-splicing factor 8polymer2335273974.31UniProt (Q6P2Q9)
Pfam (PF10597)
Pfam (PF10596)
Pfam (PF12134)
Pfam (PF01398)
Pfam (PF08084)
Pfam (PF08082)
Pfam (PF08083)
Pfam (PF10598)
Homo sapiens (Human)220 kDa U5 snRNP-specific protein,PRP8 homolog,Splicing factor Prp8,p220
11K
(P)
Pre-mRNA-splicing factor RBM22polymer42046959.61UniProt (Q9NW64)
Pfam (PF21369)
Pfam (PF25584)
Pfam (PF00076)
Homo sapiens (Human)RNA-binding motif protein 22,Zinc finger CCCH domain-containing protein 16
12L
(v)
SNW domain-containing protein 1polymer53661610.71UniProt (Q13573)
Pfam (PF02731)
Homo sapiens (Human)Nuclear protein SkiP,Nuclear receptor coactivator NCoA-62,Ski-interacting protein
13M
(N)
Zinc finger matrin-type protein 2polymer19923664.01UniProt (Q96NC0)
Pfam (PF12171)
Homo sapiens (Human)
14N
(2)
U2 snRNApolymer18860186.41GenBank (36516)Homo sapiens (Human)
15O
(5)
U5 snRNApolymer11636908.71GenBank (36515)Homo sapiens (Human)
16P
(6)
U6 snRNApolymer10634098.31Homo sapiens (Human)
17Q
(q)
Ubiquitin-like protein 5polymer738560.91UniProt (Q9BZL1)
Pfam (PF00240)
Homo sapiens (Human)
18R
(r)
GUANOSINE-5'-TRIPHOSPHATEnon-polymer523.21Chemie (GTP)
19S
(r)
MAGNESIUM IONnon-polymer24.31Chemie (MG)
20T
(A)
D-chiro inositol hexakisphosphatenon-polymer660.01Chemie (KGN)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains17
Total formula weight1077857.4
Non-Polymers*Number of molecules3
Total formula weight1207.5
All*Total formula weight1079064.9
*Water molecules are not included.

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PDB entries from 2026-02-18

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