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8QXD

Cryo-EM structure of the cross-exon pre-B complex

This is a non-PDB format compatible entry.
Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(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
2B
(B)
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
3C
(2)
U2 snRNApolymer18258290.31GenBank (36516)Homo sapiens (human)
4D
(4)
U4 snRNApolymer14446181.31GenBank (340142)Homo sapiens (human)
5E
(5)
U5 snRNApolymer11536619.51GenBank (335057560)Homo sapiens (human)
6F
(6)
U6 snRNApolymer7624479.61GenBank (NR_004394.1)Homo sapiens (human)
7G
(7)
Splicing factor 3A subunit 1polymer79388991.11UniProt (Q15459)
Pfam (PF01805)
Pfam (PF12230)
Pfam (PF00240)
Homo sapiens (human)SF3a120,Spliceosome-associated protein 114,SAP 114
8H
(8)
Splicing factor 3A subunit 2polymer46449327.41UniProt (Q15428)
Pfam (PF12874)
Pfam (PF16835)
Homo sapiens (human)SF3a66,Spliceosome-associated protein 62,SAP 62
9I
(C)
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
10J
(D)
Thioredoxin-like protein 4Apolymer14216807.31UniProt (P83876)
Pfam (PF02966)
Homo sapiens (human)DIM1 protein homolog,Spliceosomal U5 snRNP-specific 15 kDa protein,Thioredoxin-like U5 snRNP protein U5-15kD
11K
(E)
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
12L
(F)
U4/U6 small nuclear ribonucleoprotein Prp4polymer52258536.11UniProt (O43172)
Pfam (PF08799)
Pfam (PF00400)
Homo sapiens (human)PRP4 homolog,hPrp4,U4/U6 snRNP 60 kDa protein,WD splicing factor Prp4
13M
(M)
NHP2-like protein 1, N-terminally processedpolymer12814191.51UniProt (P55769)
Pfam (PF01248)
Homo sapiens (human)
14N
(R)
RNA-binding protein 42polymer48050477.91UniProt (Q9BTD8)
Pfam (PF00076)
Homo sapiens (human)RNA-binding motif protein 42
15O
(U)
Ubiquitin carboxyl-terminal hydrolase 39polymer56565481.41UniProt (Q53GS9)
Pfam (PF02148)
Pfam (PF00443)
Homo sapiens (human)
16P
(X)
U4/U6.U5 small nuclear ribonucleoprotein 27 kDa proteinpolymer15518915.41UniProt (Q8WVK2)
Pfam (PF08648)
Homo sapiens (human)U4/U6.U5 snRNP 27 kDa protein,U4/U6.U5-27K,Nucleic acid-binding protein RY-1,U4/U6.U5 tri-snRNP-associated 27 kDa protein,27K,U4/U6.U5 tri-snRNP-associated protein 3
17Q
(Z)
pre-mRNApolymer154714.81Homo sapiens (human)
18R
(S)
U4/U6.U5 tri-snRNP-associated protein 1polymer80090414.11UniProt (O43290)
Pfam (PF19252)
Pfam (PF03343)
Homo sapiens (human)SNU66 homolog,hSnu66,Squamous cell carcinoma antigen recognized by T-cells 1,SART-1,hSART-1,U4/U6.U5 tri-snRNP-associated 110 kDa protein
19S
(J)
U4/U6 small nuclear ribonucleoprotein Prp3polymer68377669.21UniProt (O43395)
Pfam (PF01480)
Pfam (PF08572)
Pfam (PF06544)
Homo sapiens (human)Pre-mRNA-splicing factor 3,hPrp3,U4/U6 snRNP 90 kDa protein
20T
(K)
Serine/threonine-protein kinase PRP4 homologpolymer1007117265.01UniProt (Q13523)
Pfam (PF00069)
Homo sapiens (human)PRP4 kinase,PRP4 pre-mRNA-processing factor 4 homolog
21U
(N)
Pre-mRNA-processing factor 6polymer941107092.21UniProt (O94906)
Pfam (PF06424)
Pfam (PF14559)
Pfam (PF13432)
Homo sapiens (human)Androgen receptor N-terminal domain-transactivating protein 1,ANT-1,PRP6 homolog,U5 snRNP-associated 102 kDa protein,U5-102 kDa protein
22V
(G)
Probable ATP-dependent RNA helicase DDX23polymer82095785.11UniProt (Q9BUQ8)
Pfam (PF00270)
Pfam (PF00271)
Homo sapiens (human)
23W
(L)
U4/U6 small nuclear ribonucleoprotein Prp31polymer49955529.01UniProt (Q8WWY3)
Pfam (PF01798)
Pfam (PF09785)
Homo sapiens (human)Pre-mRNA-processing factor 31,Serologically defined breast cancer antigen NY-BR-99,U4/U6 snRNP 61 kDa protein,Protein 61K,hPrp31
24X
(B4)
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
25Y
(9)
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
26Z
(B2)
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
27AA
(B5)
Splicing factor 3B subunit 5polymer8610149.41UniProt (Q9BWJ5)
Pfam (PF07189)
Homo sapiens (human)SF3b5,Pre-mRNA-splicing factor SF3b 10 kDa subunit
28BA
(B3)
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
29CA
(BP)
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
30DA
(B1)
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
31EA
(B6)
Splicing factor 3B subunit 6polymer12514606.91UniProt (Q9Y3B4)
Pfam (PF00076)
Homo sapiens (human)Pre-mRNA branch site protein p14,SF3b 14 kDa subunit,SF3B14a,Spliceosome-associated protein,14-kDa,Splicing factor 3b,subunit 6,14kDa
32FA, QA, XA
(22, 42, 52)
Small nuclear ribonucleoprotein Sm D2polymer11813551.93UniProt (P62316)
Pfam (PF01423)
Homo sapiens (human)Sm-D2,snRNP core protein D2
33GA
(2B)
U2 small nuclear ribonucleoprotein B''polymer22525524.41UniProt (P08579)
Pfam (PF00076)
Homo sapiens (human)U2 snRNP B''
34HA, RA, YA
(2f, 4f, 5f)
Small nuclear ribonucleoprotein Fpolymer869734.23UniProt (P62306)
Pfam (PF01423)
Homo sapiens (human)snRNP-F,Sm protein F,SmF
35IA
(2b)
Small nuclear ribonucleoprotein-associated proteins B and B'polymer24024642.11UniProt (P14678)
Pfam (PF01423)
Homo sapiens (human)snRNP-B,Sm protein B/B',SmB/B'
36BB, JA, SA
(23, 43, 53)
Small nuclear ribonucleoprotein Sm D3polymer12613940.33UniProt (P62318)
Pfam (PF01423)
Homo sapiens (human)Sm-D3,snRNP core protein D3
37KA
(2g)
Small nuclear ribonucleoprotein Gpolymer768508.11UniProt (P62308)
Pfam (PF01423)
Homo sapiens (human)snRNP-G,Sm protein G,SmG
38LA, PA, ZA
(2e, 4e, 5e)
Small nuclear ribonucleoprotein Epolymer9210817.63UniProt (P62304)
Pfam (PF01423)
Homo sapiens (human)snRNP-E,Sm protein E,SmE
39MA, OA
(21, 41)
Small nuclear ribonucleoprotein Sm D1polymer11913310.72UniProt (P62314)
Pfam (PF01423)
Homo sapiens (human)Sm-D1,Sm-D autoantigen,snRNP core protein D1
40NA
(2A)
U2 small nuclear ribonucleoprotein A'polymer25528456.61UniProt (P09661)
Pfam (PF14580)
Homo sapiens (human)U2 snRNP A'
41TA
(4b)
Small nuclear ribonucleoprotein-associated proteins B and B'polymer829621.41UniProt (P14678)
Pfam (PF01423)
Homo sapiens (human)snRNP-B,Sm protein B/B',Sm-B/B',SmB/B'
42AB, UA
(4g, 5g)
Small nuclear ribonucleoprotein Gpolymer748289.82UniProt (P62308)
Pfam (PF01423)
Homo sapiens (human)snRNP-G,Sm protein G,Sm-G,SmG
43VA
(5b)
Small nuclear ribonucleoprotein-associated proteins B and B'polymer869981.81UniProt (P14678)
Pfam (PF01423)
Homo sapiens (human)snRNP-B,Sm protein B/B',Sm-B/B',SmB/B'
44WA
(51)
Small nuclear ribonucleoprotein Sm D1polymer829301.01UniProt (P62314)
Pfam (PF01423)
Homo sapiens (human)Sm-D1,Sm-D autoantigen,snRNP core protein D1
45CB
(66)
U6 snRNA-associated Sm-like protein LSm6polymer809139.61UniProt (P62312)
Pfam (PF01423)
Homo sapiens (human)
46DB
(67)
U6 snRNA-associated Sm-like protein LSm7polymer10311617.41UniProt (Q9UK45)
Pfam (PF01423)
Homo sapiens (human)
47EB
(62)
U6 snRNA-associated Sm-like protein LSm2polymer9510847.51UniProt (Q9Y333)
Pfam (PF01423)
Homo sapiens (human)Protein G7b,Small nuclear ribonuclear protein D homolog,snRNP core Sm-like protein Sm-x5
48FB
(63)
U6 snRNA-associated Sm-like protein LSm3polymer10211859.41UniProt (P62310)
Pfam (PF01423)
Homo sapiens (human)
49GB
(68)
U6 snRNA-associated Sm-like protein LSm8polymer9610410.61UniProt (O95777)
Pfam (PF01423)
Homo sapiens (human)
50HB
(64)
U6 snRNA-associated Sm-like protein LSm4polymer13915375.81UniProt (Q9Y4Z0)
Pfam (PF01423)
Homo sapiens (human)Glycine-rich protein,GRP
51IB
(65)
U6 snRNA-associated Sm-like protein LSm5polymer919945.41UniProt (Q9Y4Y9)
Pfam (PF01423)
Homo sapiens (human)
Sequence modifications
2: 3 - 184 (GenBank: 36516)
PDBExternal DatabaseDetails
A 97G 355conflict
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains61
Total formula weight2649726.8
All*Total formula weight2649726.8
*Water molecules are not included.

237423

PDB entries from 2025-06-11

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