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7ML2

RNA polymerase II pre-initiation complex (PIC3)

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
DNA-directed RNA polymerase subunitpolymer1733191821.61UniProt (A0A6A5Q1P2)
Pfam (PF04997)
Pfam (PF00623)
Pfam (PF04983)
Pfam (PF05000)
Pfam (PF04998)
Pfam (PF04992)
Pfam (PF04990)
Pfam (PF05001)
UniProt (by SIFTS) (P04050)
Saccharomyces cerevisiae (Baker's yeast)
2B
(B)
DNA-directed RNA polymerase subunit betapolymer1224138937.31UniProt (A0A6A5Q4H2)
Pfam (PF04563)
Pfam (PF04561)
Pfam (PF04565)
Pfam (PF04566)
Pfam (PF04567)
Pfam (PF00562)
Pfam (PF04560)
UniProt (by SIFTS) (P08518)
Saccharomyces cerevisiae (Baker's yeast)
3C
(C)
DNA-directed RNA polymerase II subunit RPB3polymer31835330.51UniProt (A0A6A5Q0Z3)
Pfam (PF01193)
Pfam (PF01000)
UniProt (by SIFTS) (P16370)
Saccharomyces cerevisiae (Baker's yeast)
4D
(D)
DNA-directed RNA polymerase II subunit RPB4polymer22125451.21UniProt (A0A6A5PTI6)
Pfam (PF03874)
UniProt (by SIFTS) (P20433)
Saccharomyces cerevisiae (Baker's yeast)
5E
(E)
DNA-directed RNA polymerases I, II, and III subunit RPABC1polymer21525117.11UniProt (A0A6A5Q456)
Pfam (PF03871)
Pfam (PF01191)
UniProt (by SIFTS) (P20434)
Saccharomyces cerevisiae (Baker's yeast)
6F
(F)
DNA-directed RNA polymerases I,II,and III subunit RPABC2polymer15517931.81UniProt (A0A6L0ZRI7)
Pfam (PF01192)
UniProt (by SIFTS) (P20435)
Saccharomyces cerevisiae (Baker's yeast)
7G
(G)
DNA-directed RNA polymerase II subunit RPB7polymer17119081.11UniProt (A0A6A5Q270)
Pfam (PF03876)
Pfam (PF00575)
UniProt (by SIFTS) (P34087)
Saccharomyces cerevisiae (Baker's yeast)
8H
(H)
DNA-directed RNA polymerases I, II, and III subunit RPABC3polymer14616525.41UniProt (A0A6A5Q8C2)
Pfam (PF03870)
UniProt (by SIFTS) (P20436)
Saccharomyces cerevisiae (Baker's yeast)
9I
(I)
DNA-directed RNA polymerase II subunit RPB9polymer12214308.21UniProt (A0A7I9EWC2)
Pfam (PF02150)
Pfam (PF01096)
UniProt (by SIFTS) (P27999)
Saccharomyces cerevisiae (Baker's yeast)
10J
(J)
DNA-directed RNA polymerases II subunit RPABC5polymer708290.71UniProt (A0A6A5Q7Q6)
Pfam (PF01194)
UniProt (by SIFTS) (P22139)
Saccharomyces cerevisiae (Baker's yeast)
11K
(K)
DNA-directed RNA polymerase II subunit RPB11polymer12013633.51UniProt (A0A6A5Q7A1)
Pfam (PF13656)
UniProt (by SIFTS) (P38902)
Saccharomyces cerevisiae (Baker's yeast)
12L
(L)
DNA-directed RNA polymerases II subunit RPABC4polymer707730.01UniProt (A0A6A5PY05)
Pfam (PF03604)
UniProt (by SIFTS) (P40422)
Saccharomyces cerevisiae (Baker's yeast)
13M
(M)
Transcription initiation factor IIBpolymer34538257.31UniProt (P29055)
Pfam (PF08271)
Pfam (PF00382)
Saccharomyces cerevisiae (Baker's yeast)General transcription factor TFIIB,Transcription factor E
14N
(Q)
Transcription initiation factor IIF subunit alphapolymer73582320.61UniProt (P41895)
Pfam (PF05793)
Saccharomyces cerevisiae (Baker's yeast)TFIIF-alpha,TFIIF large subunit,Transcription factor G 105 kDa subunit,P105
15O
(R)
Transcription initiation factor IIF subunit betapolymer40046684.51UniProt (A0A6A5PZ00)
Pfam (PF17683)
Pfam (PF02270)
UniProt (by SIFTS) (P41896)
Saccharomyces cerevisiae (Baker's yeast)
16P
(U)
Transcription initiation factor IIA large subunitpolymer28632230.81UniProt (A0A6A5Q2T8)
Pfam (PF03153)
UniProt (by SIFTS) (P32773)
Saccharomyces cerevisiae (Baker's yeast)Y55_G0039490.mRNA.1.CDS.1
17Q
(V)
Transcription initiation factor IIA subunit 2polymer12213473.11UniProt (A0A6A5PRZ0)
Pfam (PF02268)
Pfam (PF02751)
UniProt (by SIFTS) (P32774)
Saccharomyces cerevisiae (Baker's yeast)
18R
(W)
Transcription initiation factor IIE subunit alphapolymer48254804.81UniProt (A0A6A5PTU5)
Pfam (PF02002)
UniProt (by SIFTS) (P36100)
Saccharomyces cerevisiae (Baker's yeast)
19S
(X)
Transcription initiation factor IIE subunit betapolymer32837050.41UniProt (A0A6A5PS93)
Pfam (PF02186)
Pfam (PF18121)
Pfam (PF22254)
UniProt (by SIFTS) (P36145)
Saccharomyces cerevisiae (Baker's yeast)
20T
(T)
template strand DNApolymer5617166.01Saccharomyces cerevisiae
21U
(N)
non-template strand DNApolymer5617336.21Saccharomyces cerevisiae
22V
(O)
BJ4_G0004860.mRNA.1.CDS.1polymer24027042.31UniProt (G4XSG8)
Pfam (PF00352)
UniProt (by SIFTS) (P13393)
Saccharomyces cerevisiae (Baker's yeast)BJ4_G0016160.mRNA.1.CDS.1,EM14S01-3B_G0002200.mRNA.1.CDS.1,HLJ1_G0002280.mRNA.1.CDS.1,JXXY16_1_G0002270.mRNA.1.CDS.1,SX2_G0002280.mRNA.1.CDS.1,TATA-binding protein,TATA-box-binding protein,XXYS1_4_G0005080.mRNA.1.CDS.1,Y55_G0002290.mRNA.1.CDS.1
23W
(1)
Tfb1polymer54258593.41Pfam (PF08567)
Pfam (PF03909)
UniProt (by SIFTS) (P32776)
Saccharomyces cerevisiae (Baker's yeast)
24X
(4)
Tfb4polymer33837430.31Pfam (PF03850)
UniProt (by SIFTS) (Q12004)
Saccharomyces cerevisiae (Baker's yeast)
25Y
(0)
General transcription and DNA repair factor IIH helicase subunit XPDpolymer77889899.01UniProt (A0A6A5Q1C1)
Pfam (PF06733)
Pfam (PF06777)
Pfam (PF13307)
UniProt (by SIFTS) (P06839)
Saccharomyces cerevisiae (Baker's yeast)Rad3
26Z
(6)
General transcription and DNA repair factor IIHpolymer46152024.71Pfam (PF04056)
Pfam (PF07975)
UniProt (by SIFTS) (Q04673)
Saccharomyces cerevisiae (Baker's yeast)
27AA
(2)
RNA polymerase II transcription factor B subunit 2polymer51358602.31UniProt (A0A6A5Q2X3)
Pfam (PF03849)
Pfam (PF18307)
UniProt (by SIFTS) (Q02939)
Saccharomyces cerevisiae (Baker's yeast)
28BA
(5)
General transcription and DNA repair factor IIH subunit TFB5polymer728243.51UniProt (Q3E7C1)
Pfam (PF06331)
Saccharomyces cerevisiae (Baker's yeast)TFIIH subunit TFB5,RNA polymerase II transcription factor B subunit 5
29CA
(7)
General transcription and DNA repair factor IIH helicase subunit XPBpolymer84395461.71UniProt (Q00578)
Pfam (PF13625)
Pfam (PF04851)
Pfam (PF16203)
Saccharomyces cerevisiae (Baker's yeast)TFIIH subunit XPB,DNA repair helicase RAD25,RNA polymerase II transcription factor B subunit SSL2,TFB subunit SSL2,Suppressor of stem-loop mutation 2
30DA
(3)
BJ4_G0050160.mRNA.1.CDS.1polymer32138188.41UniProt (A0A7I9BTI9)
Pfam (PF06391)
Pfam (PF17121)
UniProt (by SIFTS) (Q03290)
Saccharomyces cerevisiae (Baker's yeast)SX2_G0047880.mRNA.1.CDS.1,Y55_G0047830.mRNA.1.CDS.1
31EA, FA, HA, IA, JA...
(A, B, C, I, J...)
ZINC IONnon-polymer65.417Chemie (ZN)
32GA
(A)
MAGNESIUM IONnon-polymer24.31Chemie (MG)
33QA
(0)
IRON/SULFUR CLUSTERnon-polymer351.61Chemie (SF4)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains30
Total formula weight1318967.6
Non-Polymers*Number of molecules19
Total formula weight1487.9
All*Total formula weight1320455.5
*Water molecules are not included.

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PDB entries from 2025-06-11

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