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8CH6

Structure of a late-stage activated spliceosome (BAqr) arrested with a dominant-negative Aquarius mutant (state B complex).

This is a non-PDB format compatible entry.
Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, PA
(1, i)
Small nuclear ribonucleoprotein Epolymer9210817.62UniProt (P62304)
Pfam (PF01423)
Homo sapiens (human)snRNP-E,Sm protein E,SmE
2B, OA
(2, h)
Small nuclear ribonucleoprotein Fpolymer869734.22UniProt (P62306)
Pfam (PF01423)
Homo sapiens (human)snRNP-F,Sm protein F,SmF
3C, QA
(3, j)
Small nuclear ribonucleoprotein Sm D3polymer12613940.32UniProt (P62318)
Pfam (PF01423)
Homo sapiens (human)Sm-D3,snRNP core protein D3
4D, SA
(4, l)
Small nuclear ribonucleoprotein Sm D2polymer11813551.92UniProt (P62316)
Pfam (PF01423)
Homo sapiens (human)Sm-D2,snRNP core protein D2
5E, RA
(5, k)
Small nuclear ribonucleoprotein Sm D1polymer11913310.72UniProt (P62314)
Pfam (PF01423)
Homo sapiens (human)Sm-D1,Sm-D autoantigen,snRNP core protein D1
6F, UA
(8, n)
Small nuclear ribonucleoprotein-associated proteins B and B'polymer24024642.12UniProt (P14678)
Pfam (PF01423)
Homo sapiens (human)snRNP-B,Sm protein B/B',SmB/B'
7G, TA
(9, m)
Small nuclear ribonucleoprotein Gpolymer768508.12UniProt (P62308)
Pfam (PF01423)
Homo sapiens (human)snRNP-G,Sm protein G,SmG
8H
(A)
Splicing factor 3B subunit 3polymer1217135718.81UniProt (Q15393)
Pfam (PF10433)
Pfam (PF03178)
Homo sapiens (human)Pre-mRNA-splicing factor SF3b 130 kDa subunit,SF3b130,STAF130,Spliceosome-associated protein 130,SAP 130
9I
(B)
Splicing factor 3B subunit 5polymer8610149.41UniProt (Q9BWJ5)
Pfam (PF07189)
Homo sapiens (human)SF3b5,Pre-mRNA-splicing factor SF3b 10 kDa subunit
10J
(C)
Splicing factor 3B subunit 1polymer1304146024.91UniProt (O75533)
Pfam (PF08920)
Pfam (PF22646)
Homo sapiens (human)Pre-mRNA-splicing factor SF3b 155 kDa subunit,SF3b155,Spliceosome-associated protein 155,SAP 155
11K
(D)
PHD finger-like domain-containing protein 5Apolymer11012427.51UniProt (Q7RTV0)
Pfam (PF03660)
Homo sapiens (human)PHD finger-like domain protein 5A,Splicing factor 3B-associated 14 kDa protein,SF3b14b
12L
(E)
Splicing factor 3B subunit 2polymer895100377.81UniProt (Q13435)
Pfam (PF02037)
Pfam (PF04037)
Pfam (PF04046)
Homo sapiens (human)Pre-mRNA-splicing factor SF3b 145 kDa subunit,SF3b145,Spliceosome-associated protein 145,SAP 145
13M
(F)
Splicing factor 3B subunit 4polymer42444436.61UniProt (Q15427)
Pfam (PF00076)
Homo sapiens (human)Pre-mRNA-splicing factor SF3b 49 kDa subunit,Spliceosome-associated protein 49,SAP 49
14N
(G)
G-patch domain and KOW motifs-containing proteinpolymer47652299.71UniProt (Q92917)
Pfam (PF12656)
Pfam (PF00467)
Homo sapiens (human)G-patch domain-containing protein 5,Protein MOS2 homolog,Protein T54
15O
(H)
Splicing factor 3A subunit 1polymer79388991.11UniProt (Q15459)
Pfam (PF01805)
Pfam (PF12230)
Pfam (PF00240)
Homo sapiens (human)SF3a120,Spliceosome-associated protein 114,SAP 114
16P
(I)
Splicing factor 3A subunit 2polymer46449327.41UniProt (Q15428)
Pfam (PF12874)
Pfam (PF16835)
Homo sapiens (human)SF3a66,Spliceosome-associated protein 62,SAP 62
17Q
(J)
Splicing factor 3A subunit 3polymer50158934.81UniProt (Q12874)
Pfam (PF12108)
Pfam (PF16837)
Pfam (PF13297)
Pfam (PF11931)
Homo sapiens (human)SF3a60,Spliceosome-associated protein 61,SAP 61
18CB, R, T, Y
(K, M, R, v)
Pre-mRNA-processing factor 19polymer50455245.54UniProt (Q9UMS4)
Pfam (PF04564)
Pfam (PF08606)
Pfam (PF00400)
Homo sapiens (human)Nuclear matrix protein 200,PRP19/PSO4 homolog,hPso4,RING-type E3 ubiquitin transferase PRP19,Senescence evasion factor
19S
(L)
BUD13 homologpolymer61970669.21UniProt (Q9BRD0)
Pfam (PF09736)
Homo sapiens (human)
20U
(N)
Putative pre-mRNA-splicing factor ATP-dependent RNA helicase DHX16polymer1041119443.61UniProt (O60231)
Pfam (PF00270)
Pfam (PF00271)
Pfam (PF04408)
Pfam (PF21010)
Pfam (PF07717)
Homo sapiens (human)ATP-dependent RNA helicase #3,DEAH-box protein 16
21V
(O)
Pleiotropic regulator 1polymer51457280.81UniProt (O43660)
Pfam (PF00400)
Homo sapiens (human)
22W
(P)
Cell division cycle 5-like proteinpolymer80292406.91UniProt (Q99459)
Pfam (PF13921)
Pfam (PF11831)
Homo sapiens (human)Cdc5-like protein,Pombe cdc5-related protein
23X
(Q)
Spliceosome-associated protein CWC15 homologpolymer22926674.41UniProt (Q9P013)
Pfam (PF04889)
Homo sapiens (human)
24Z
(S)
Pre-mRNA-splicing factor SPF27polymer22526163.41UniProt (O75934)
Pfam (PF05700)
Homo sapiens (human)Breast carcinoma-amplified sequence 2,DNA amplified in mammary carcinoma 1 protein,Spliceosome-associated protein SPF 27
25AA
(T)
Protein BUD31 homologpolymer14417032.81UniProt (P41223)
Pfam (PF01125)
Homo sapiens (human)Protein EDG-2,Protein G10 homolog
26BA
(U)
Pre-mRNA-splicing factor RBM22polymer42046959.61UniProt (Q9NW64)
Pfam (PF21369)
Pfam (PF00076)
Homo sapiens (human)RNA-binding motif protein 22,Zinc finger CCCH domain-containing protein 16
27CA
(V)
Peptidyl-prolyl cis-trans isomerase-like 4polymer49257324.21UniProt (Q8WUA2)
Pfam (PF00160)
Pfam (PF00076)
Homo sapiens (human)PPIase,Cyclophilin-like protein PPIL4,Rotamase PPIL4
28DA
(W)
Pre-mRNA-splicing factor CWC22 homologpolymer908105646.61UniProt (Q9HCG8)
Pfam (PF02854)
Pfam (PF02847)
Homo sapiens (human)Nucampholin homolog,fSAPb
29EA
(X)
Crooked neck-like protein 1polymer848100610.01UniProt (Q9BZJ0)
Pfam (PF02184)
Homo sapiens (human)Crooked neck homolog,hCrn
30FA
(Y)
SNW domain-containing protein 1polymer53661610.71UniProt (Q13573)
Pfam (PF02731)
Homo sapiens (human)Nuclear protein SkiP,Nuclear receptor coactivator NCoA-62,Ski-interacting protein
31GA
(Z)
RING finger protein 113Apolymer34338847.21UniProt (O15541)
Pfam (PF00642)
Pfam (PF13920)
Homo sapiens (human)Zinc finger protein 183
32HA
(a)
Pre-mRNA-processing-splicing factor 8polymer2335273974.31UniProt (Q6P2Q9)
Pfam (PF08082)
Pfam (PF08083)
Pfam (PF10598)
Pfam (PF10597)
Pfam (PF10596)
Pfam (PF12134)
Pfam (PF01398)
Pfam (PF08084)
Homo sapiens (human)220 kDa U5 snRNP-specific protein,PRP8 homolog,Splicing factor Prp8,p220
33IA
(b)
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
34JA
(c)
U5 small nuclear ribonucleoprotein 200 kDa helicasepolymer2136244823.41UniProt (O75643)
Pfam (PF21188)
Pfam (PF18149)
Pfam (PF00270)
Pfam (PF00271)
Pfam (PF02889)
Homo sapiens (human)Activating signal cointegrator 1 complex subunit 3-like 1,BRR2 homolog,U5 snRNP-specific 200 kDa protein,U5-200KD
35KA
(d)
RNU6-1polymer10634098.31Homo sapiens
36LA
(e)
RNU5A-1polymer11737254.91GenBank (20330981)Homo sapiens (human)
37MA
(f)
RNU2-1polymer18860186.41GenBank (36516)Homo sapiens (human)
38NA
(g)
MINX-M3polymer319102348.21unidentified adenovirus
39VA
(o)
U5 small nuclear ribonucleoprotein 40 kDa proteinpolymer35739359.51UniProt (Q96DI7)
Pfam (PF00400)
Homo sapiens (human)U5-40K,38 kDa-splicing factor,Prp8-binding protein,hPRP8BP,U5 snRNP-specific 40 kDa protein,WD repeat-containing protein 57
40WA
(p)
Peptidyl-prolyl cis-trans isomerase-like 1polymer16618257.81UniProt (Q9Y3C6)
Pfam (PF00160)
Homo sapiens (human)PPIase,Rotamase PPIL1
41XA
(q)
Serine/arginine repetitive matrix protein 2polymer2752300255.31UniProt (Q9UQ35)
Pfam (PF08312)
Homo sapiens (human)300 kDa nuclear matrix antigen,Serine/arginine-rich splicing factor-related nuclear matrix protein of 300 kDa,Ser/Arg-related nuclear matrix protein of 300 kDa,Splicing coactivator subunit SRm300,Tax-responsive enhancer element-binding protein 803,TaxREB803
42YA
(r)
U2 small nuclear ribonucleoprotein A'polymer25528456.61UniProt (P09661)
Pfam (PF14580)
Homo sapiens (human)U2 snRNP A'
43ZA
(s)
U2 small nuclear ribonucleoprotein B''polymer22525524.41UniProt (P08579)
Pfam (PF00076)
Homo sapiens (human)U2 snRNP B''
44AB
(t)
Pre-mRNA-splicing factor ISY1 homologpolymer28533046.31UniProt (Q9ULR0)
Pfam (PF06246)
Homo sapiens (human)
45BB
(u)
RING-type E3 ubiquitin-protein ligase PPIL2polymer52058910.41UniProt (Q13356)
Pfam (PF00160)
Homo sapiens (human)CYC4,Cyclophilin-60,Cyclophilin-like protein Cyp-60,Cyp60,hCyP-60,Probable inactive peptidyl-prolyl cis-trans isomerase-like 2,PPIase,Rotamase PPIL2
46DB
(w)
Peptidyl-prolyl cis-trans isomerase Epolymer30133475.81UniProt (Q9UNP9)
Pfam (PF00076)
Pfam (PF00160)
Homo sapiens (human)PPIase E,Cyclophilin E,Cyclophilin-33,Rotamase E
47EB
(x)
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
48FB
(y)
Intron-binding protein aquariuspolymer1485171502.51UniProt (O60306)
Pfam (PF16399)
Pfam (PF21143)
Pfam (PF21144)
Pfam (PF13086)
Pfam (PF13087)
Homo sapiens (human)Intron-binding protein of 160 kDa,IBP160
49GB
(z)
Pre-mRNA-splicing factor SYF1polymer855100148.71UniProt (Q9HCS7)
Pfam (PF13181)
Homo sapiens (human)Protein HCNP,XPA-binding protein 2
50HB, IB, JB, KB, LB...
(D, I, J, T, U...)
ZINC IONnon-polymer65.412Chemie (ZN)
51TB
(a)
INOSITOL HEXAKISPHOSPHATEnon-polymer660.01Chemie (IHP)
52UB
(b)
GUANOSINE-5'-TRIPHOSPHATEnon-polymer523.21Chemie (GTP)
53AC, BC, VB, WB, XB...
(d, b)
MAGNESIUM IONnon-polymer24.37Chemie (MG)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains59
Total formula weight3666144.8
Non-Polymers*Number of molecules21
Total formula weight2138.3
All*Total formula weight3668283.0
*Water molecules are not included.

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PDB entries from 2025-06-11

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