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7ONB

Structure of the U2 5' module of the A3'-SSA complex

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(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
2B
(B)
Splicing factor 3B subunit 5polymer8610149.41UniProt (Q9BWJ5)
Pfam (PF07189)
Homo sapiens (Human)SF3b5,Pre-mRNA-splicing factor SF3b 10 kDa subunit
3C
(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
4D
(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
5E
(F)
UNKpolymer211999.21Homo sapiens (human)
6F
(G)
MINXpolymer22973393.21unidentified adenovirus
7G
(H)
RNU2polymer18860186.41GenBank (36516)Homo sapiens (human)
8H
(I)
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
9I
(M)
Splicing factor 3A subunit 2polymer46449327.41UniProt (Q15428)
Pfam (PF12874)
Pfam (PF16835)
Homo sapiens (Human)SF3a66,Spliceosome-associated protein 62,SAP 62
10J
(N)
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
11K
(K)
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
12L
(D)
spliceostatin A (form II)non-polymer523.71Chemie (SJT)
13M, N, O, P, Q
(D, M, N)
ZINC IONnon-polymer65.45Chemie (ZN)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains11
Total formula weight692976.2
Non-Polymers*Number of molecules6
Total formula weight850.7
All*Total formula weight693826.9
*Water molecules are not included.

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PDB entries from 2025-07-23

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