5e17

T. thermophilus transcription initiation complex having a RRR discriminator sequence and a nontemplate-strand length corresponding to TSS selection at position 7 (RPo-GGG-7)

Method: X-RAY DIFFRACTION

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1. Protein Identity and Related Structures Protein Identity & Related Structures

DNA-directed RNA polymerase subunit alpha

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Heteromer	Protein 6 DNA 2 RNA 1	DNA-directed RNA polymerase subunit beta × 1 （Q8RQE9） ;DNA-directed RNA polymerase subunit beta' ; × 1 （Q8RQE8） DNA-directed RNA polymerase subunit omega × 1 （Q8RQE7） RNA polymerase sigma factor SigA × 1 （Q5SKW1） ;DNA (5'-D(CPCPTGPCPAPTPCPCPGPTPGPAPGPTPCPGPAPGPGPG)-3') ; × 1 DNA (27-MER) × 1 ;RNA (5'-R(CPCPCPUPCPGPA)-3') ; × 1 MAGNESIUM ION × 4 ZINC ION × 2 water × 9	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RPOA_THETH
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–315； UniProt 1–315 Author chain B； PDBConstruct 1–315； UniProt 1–315

DNA-directed RNA polymerase subunit beta

OrganismNot specified

UniProt Q8RQE9

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Heteromer	Protein 6 DNA 2 RNA 1	DNA-directed RNA polymerase subunit alpha × 2 （Q9Z9H6） ;DNA-directed RNA polymerase subunit beta' ; × 1 （Q8RQE8） DNA-directed RNA polymerase subunit omega × 1 （Q8RQE7） RNA polymerase sigma factor SigA × 1 （Q5SKW1） ;DNA (5'-D(CPCPTGPCPAPTPCPCPGPTPGPAPGPTPCPGPAPGPGPG)-3') ; × 1 DNA (27-MER) × 1 ;RNA (5'-R(CPCPCPUPCPGPA)-3') ; × 1 MAGNESIUM ION × 4 ZINC ION × 2 water × 9	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RPOB_THET8
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain C； PDBConstruct 1–1119； UniProt 1–1119

;DNA-directed RNA polymerase subunit beta' ;

OrganismNot specified

UniProt Q8RQE8

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Heteromer	Protein 6 DNA 2 RNA 1	DNA-directed RNA polymerase subunit alpha × 2 （Q9Z9H6） DNA-directed RNA polymerase subunit beta × 1 （Q8RQE9） DNA-directed RNA polymerase subunit omega × 1 （Q8RQE7） RNA polymerase sigma factor SigA × 1 （Q5SKW1） ;DNA (5'-D(CPCPTGPCPAPTPCPCPGPTPGPAPGPTPCPGPAPGPGPG)-3') ; × 1 DNA (27-MER) × 1 ;RNA (5'-R(CPCPCPUPCPGPA)-3') ; × 1 MAGNESIUM ION × 4 ZINC ION × 2 water × 9	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RPOC_THET8
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain D； PDBConstruct 1–1524； UniProt 1–1524

DNA-directed RNA polymerase subunit omega

OrganismNot specified

UniProt Q8RQE7

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Heteromer	Protein 6 DNA 2 RNA 1	DNA-directed RNA polymerase subunit alpha × 2 （Q9Z9H6） DNA-directed RNA polymerase subunit beta × 1 （Q8RQE9） ;DNA-directed RNA polymerase subunit beta' ; × 1 （Q8RQE8） RNA polymerase sigma factor SigA × 1 （Q5SKW1） ;DNA (5'-D(CPCPTGPCPAPTPCPCPGPTPGPAPGPTPCPGPAPGPGPG)-3') ; × 1 DNA (27-MER) × 1 ;RNA (5'-R(CPCPCPUPCPGPA)-3') ; × 1 MAGNESIUM ION × 4 ZINC ION × 2 water × 9	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RPOZ_THET8
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain E； PDBConstruct 1–99； UniProt 1–99

RNA polymerase sigma factor SigA

Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)

UniProt Q5SKW1

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Heteromer	Protein 6 DNA 2 RNA 1	DNA-directed RNA polymerase subunit alpha × 2 （Q9Z9H6） DNA-directed RNA polymerase subunit beta × 1 （Q8RQE9） ;DNA-directed RNA polymerase subunit beta' ; × 1 （Q8RQE8） DNA-directed RNA polymerase subunit omega × 1 （Q8RQE7） ;DNA (5'-D(CPCPTGPCPAPTPCPCPGPTPGPAPGPTPCPGPAPGPGPG)-3') ; × 1 DNA (27-MER) × 1 ;RNA (5'-R(CPCPCPUPCPGPA)-3') ; × 1 MAGNESIUM ION × 4 ZINC ION × 2 water × 9	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q5SKW1_THET8
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain F； PDBConstruct 21–443； UniProt 1–423

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	5e17
Deposition date deposition_date	2015-09-29
Structure title title	T. thermophilus transcription initiation complex having a RRR discriminator sequence and a nontemplate-strand length corresponding to TSS selection at position 7 (RPo-GGG-7)
Keywords keywords	;DNA, Single-Stranded, DNA-Directed RNA Polymerases, Gene Expression Regulation, Bacterial, Promoter Regions, Protein Conformation, Sigma Factor, Thermus thermophilus, Transcription Initiation, start site selection, promoter escape, initial transcript, abortive product, sigma finger, transcription-dna-rna complex ;; transcription/dna/rna
Experimental Method method	X-RAY DIFFRACTION

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

5e17__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

5e17__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

5e17__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	51.77 Å
Rg (electron density)	52.68 Å
Total Rg	52.64 Å
Atom count	28581
Residues	3531
Excluded volume	507670 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`5e17__assembly_1__model_1`	nonameric （9）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (11)

Entity 1 Entity 1 polymer

Description description	DNA-directed RNA polymerase subunit alpha
Molecular weight formula_weight	35056.2 kDa
EC 编号 ec_number	2.7.7.6
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	28784

MLDSKLKAPVFTVRTQGREYGEFVLEPLERGFGVTLGNPLRRILLSSIPGTAVTSVYIEDVLHEFSTIPGVKEDVVEIILNLKELVVRFLNPSLQTVTLLLKAEGPKEVKARDFLPVADVEIMNPDLHIATLEEGGRLNMEVRVDRGVGYVPAEKHGIKDRINAIPVDAVFSPVRRVAFQVEDTRLGQRTDLDKLTLRIWTDGSVTPLEALNQAVEILREHLTYFSNPQAAAVAAPEEAKEPEAPPEQEEELDLPLEELGLSTRVLHSLKEEGIESVRALLALNLKDLKNIPGIGERSLEEIKEALEKKGFTLKE

Entity 2 Entity 2 polymer

Description description	DNA-directed RNA polymerase subunit beta
Molecular weight formula_weight	125436.5 kDa
EC 编号 ec_number	2.7.7.6
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C

MEIKRFGRIREVIPLPPLTEIQVESYRRALQADVPPEKRENVGIQAAFRETFPIEEEDKGKGGLVLDFLEYRLGEPPFPQDECREKDLTYQAPLYARLQLIHKDTGLIKEDEVFLGHIPLMTEDGSFIINGADRVIVSQIHRSPGVYFTPDPARPGRYIASIIPLPKRGPWIDLEVEPNGVVSMKVNKRKFPLVLLLRVLGYDQETLARELGAYGELVQGLMDESVFAMRPEEALIRLFTLLRPGDPPKRDKAVAYVYGLIADPRRYDLGEAGRYKAEEKLGIRLSGRTLARFEDGEFKDEVFLPTLRYLFALTAGVPGHEVDDIDHLGNRRIRTVGELMTDQFRVGLARLARGVRERMLMGSEDSLTPAKLVNSRPLEAAIREFFSRSQLSQFKDETNPLSSLRHKRRISALGPGGLTRERAGFDVRDVHRTHYGRICPVETPEGANIGLITSLAAYARVDELGFIRTPYRRVVGGVVTDEVVYMTATEEDRYTIAQANTPLEGNRIAAERVVARRKGEPVIVSPEEVEFMDVSPKQVFSVNTNLIPFLEHDDANRALMGSNMQTQAVPLIRAQAPVVMTGLEERVVRDSLAALYAEEDGEVAKVDGNRIVVRYEDGRLVEYPLRRFYRSNQGTALDQRPRVVVGQRVRKGDLLADGPASENGFLALGQNVLVAIMPFDGYNFEDAIVISEELLKRDFYTSIHIERYEIEARDTKLGPERITRDIPHLSEAALRDLDEEGVVRIGAEVKPGDILVGRTSFKGESEPTPEERLLRSIFGEKARDVKDTSLRVPPGEGGIVVRTVRLRRGDPGVELKPGVREVVRVYVAQKRKLQVGDKLANRHGNKGVVAKILPVEDMPHLPDGTPVDVILNPLGVPSRMNLGQILETHLGLAGYFLGQRYISPIFDGAKEPEIKELLAQAFEVYFGKRKGEGFGVDKREVEVLRRAEKLGLVTPGKTPEEQLKELFLQGKVVLYDGRTGEPIEGPIVVGQMFIMKLYHMVEDKMHARSTGPYSLITQQPLGGKAQFGGQRFGEMEVWALEAYGAAHTLQEMLTLKSDDIEGRNAAYEAIIKGEDVPEPSVPESFRVLVKELQALALDVQTLDEKDNPVDIFEGLASKR

Entity 3 Entity 3 polymer

Description description	;DNA-directed RNA polymerase subunit beta' ;
Molecular weight formula_weight	170997.4 kDa
EC 编号 ec_number	2.7.7.6
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	D

MKKEVRKVRIALASPEKIRSWSYGEVEKPETINYRTLKPERDGLFDERIFGPIKDYECACGKYKRQRFEGKVCERCGVEVTKSIVRRYRMGHIELATPAAHIWFVKDVPSKIGTLLDLSATELEQVLYFSKYIVLDPKGAILNGVPVEKRQLLTDEEYRELRYGKQETYPLPPGVDALVKDGEEVVKGQELAPGVVSRLDGVALYRFPRRVRVEYVKKERAGLRLPLAAWVEKEAYKPGEILAELPEPYLFRAEEEGVVELKELEEGAFLVLRREDEPVATYFLPVGMTPLVVHGEIVEKGQPLAEAKGLLRMPRQVRAAQVEAEEEGETVYLTLFLEWTEPKDYRVQPHMNVVVPEGARVEAGDKIVAAIDPEEEVIAEAEGVVHLHEPASILVVKARVYPFEDDVEVSTGDRVAPGDVLADGGKVKSDVYGRVEVDLVRNVVRVVESYDIDARMGAEAIQQLLKELDLEALEKELLEEMKHPSRARRAKARKRLEVVRAFLDSGNRPEWMILEAVPVLPPDLRPMVQVDGGRFATSDLNDLYRRLINRNNRLKKLLAQGAPEIIIRNEKRMLQEAVDALLDNGRRGAPVTNPGSDRPLRSLTDILSGKQGRFRQNLLGKRVDYSGRSVIVVGPQLKLHQCGLPKRMALELFKPFLLKKMEEKGIAPNVKAARRMLERQRDIKDEVWDALEEVIHGKVVLLNRAPTLHRLGIQAFQPVLVEGQSIQLHPLVCEAFNADFDGDQMAVHVPLSSFAQAEARIQMLSAHNLLSPASGEPLAKPSRDIILGLYYITQVRKEKKGAGLEFATPEEALAAHERGEVALNAPIKVAGRETSVGRLKYVFANPDEALLAVAHGIVDLQDVVTVRYMGKRLETSPGRILFARIVAEAVEDEKVAWELIQLDVPQEKNSLKDLVYQAFLRLGMEKTARLLDALKYYGFTFSTTSGITIGIDDAVIPEEKKQYLEEADRKLLQIEQAYEMGFLTDRERYDQILQLWTETTEKVTQAVFKNFEENYPFNPLYVMAQSGARGNPQQIRQLCGLRGLMQKPSGETFEVPVRSSFREGLTVLEYFISSHGARKGGADTALRTADSGYLTRKLVDVTHEIVVREADCGTTNYISVPLFQPDEVTRSLRLRKRADIEAGLYGRVLAREVEVLGVRLEEGRYLSMDDVHLLIKAAEAGEIQEVPVRSPLTCQTRYGVCQKCYGYDLSMARPVSIGEAVGIVAAQSIGEPGTQLTMRTFHTGGVAGAADITQGLPRVIELFEARRPKAKAVISEIDGVVRIEETEEKLSVFVESEGFSKEYKLPKEARLLVKDGDYVEAGQPLTRGAIDPHQLLEAKGPEAVERYLVEEIQKVYRAQGVKLHDKHIEIVVRQMMKYVEVTDPGDSRLLEGQVLEKWDVEALNERLIAEGKTPVAWKPLLMGVTKSALSTKSWLSAASFQNTTHVLTEAAIAGKKDELIGLKENVILGRLIPAGTGSDFVRFTQVVDQKTLKAIEEARKEAVEAKERPAARRGVKREQPGKQA

Entity 4 Entity 4 polymer

Description description	DNA-directed RNA polymerase subunit omega
Molecular weight formula_weight	11533.3 kDa
EC 编号 ec_number	2.7.7.6
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	E

MAEPGIDKLFGMVDSKYRLTVVVAKRAQQLLRHGFKNTVLEPEERPKMQTLEGLFDDPNAVTWAMKELLTGRLVFGENLVPEDRLQKEMERLYPVEREE

Entity 5 Entity 5 polymer

Description description	RNA polymerase sigma factor SigA
Molecular weight formula_weight	50769.4 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	F

MGSSHHHHHHSSGLVPRGSHMKKSKRKNAQAQEAQETEVLVQEEAEELPEFPEGEPDPDLEDPDLTLEDDLLDLPEEGEGLDLEEEEEDLPIPKISTSDPVRQYLHEIGQVPLLTLEEEVELARKVEEGMEAIKKLSEITGLDPDLIREVVRAKILGSARVRHIPGLKETLDPKTVEEIDQKLKSLPKEHKRYLHIAREGEAARQHLIEANLRLVVSIAKKYTGRGLSFLDLIQEGNQGLIRAVEKFEYKRRFKFSTYATWWIRQAINRAIADQARTIRIPVHMVETINKLSRTARQLQQELGREPTYEEIAEAMGPGWDAKRVEETLKIAQEPVSLETPIGDEKDSFYGDFIPDEHLPSPVDAATQSLLSEELEKALSKLSEREAMVLKLRKGLIDGREHTLEEVGAFFGVTRERIRQIENKALRKLKYHESRTRKLRDFLD

Source Source

Source organism organism	Thermus thermophilus (strain HB8 / ATCC 27634 / DSM 579)
NCBI taxonomy ID ncbi_taxonomy_id	300852
Host organism host_organism	Escherichia coli

Entity 6 Entity 6 polymer

Description description	;DNA (5'-D(CPCPTGPCPAPTPCPCPGPTPGPAPGPTPCPGPAPGPGP*G)-3') ;
Molecular weight formula_weight	6480.2 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polydeoxyribonucleotide
Chain IDs strand_id	G

CCTGCATCCGTGAGTCGAGGG

Entity 7 Entity 7 polymer

Description description	DNA (27-MER)
Molecular weight formula_weight	8421.4 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polydeoxyribonucleotide
Chain IDs strand_id	H

TATAATGGGAGCTGTCACGGATGCAGG

Entity 8 Entity 8 polymer

Description description	;RNA (5'-R(CPCPCPUPCPGP*A)-3') ;
Molecular weight formula_weight	2156.3 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polyribonucleotide
Chain IDs strand_id	I

CCCUCGA

Entity 9 Entity 9 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 10 Entity 10 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 11 Entity 11 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	159

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6. Fold Classification (SCOP + CATH) 14 domains

CATH v4.4 (14 domains)

Domain ID domain_id	5e17A01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1360 — Gyrase A; domain 2
Homologous superfamily homologous superfamily	10 — RNA polymerase, RBP11-like subunit

Domain ID domain_id	5e17A02
Class class	2 — Mainly Beta
Architecture architecture	170 — Beta Complex
Topology topology	120 — RNA Polymerase Alpha Subunit; Chain A, domain 2
Homologous superfamily homologous superfamily	12 — DNA-directed RNA polymerase, insert domain

Domain ID domain_id	5e17B01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	1360 — Gyrase A; domain 2
Homologous superfamily homologous superfamily	10 — RNA polymerase, RBP11-like subunit

Domain ID domain_id	5e17B02
Class class	2 — Mainly Beta
Architecture architecture	170 — Beta Complex
Topology topology	120 — RNA Polymerase Alpha Subunit; Chain A, domain 2
Homologous superfamily homologous superfamily	12 — DNA-directed RNA polymerase, insert domain

Domain ID domain_id	5e17C01
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	270 — Dna-directed Rna Polymerase Ii 140kd Polypeptide; Chain: B; Domain 6
Homologous superfamily homologous superfamily	10 — DNA-directed RNA polymerase, subunit 2, domain 6

Domain ID domain_id	5e17C03
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	1110 — Dna-directed Rna Polymerase Ii 140kd Polypeptide; Chain: B; domain 3
Homologous superfamily homologous superfamily	10 — RNA polymerase Rpb2, domain 2

Domain ID domain_id	5e17C04
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	150 — Rna Polymerase Beta Subunit; Chain: C, domain 4
Homologous superfamily homologous superfamily	10 — DNA-directed RNA polymerase, beta subunit, external 1 domain

Domain ID domain_id	5e17C05
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homologous superfamily homologous superfamily	100 — RNA polymerase II/Efflux pump adaptor protein, barrel-sandwich hybrid domain

Domain ID domain_id	5e17C06
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	50 — OB fold (Dihydrolipoamide Acetyltransferase, E2P)
Homologous superfamily homologous superfamily	150 — RNA polymerase II, Rpb2 subunit, wall domain

Domain ID domain_id	5e17D01
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	274 — Enzyme I; Chain A, domain 2
Homologous superfamily homologous superfamily	100 — RNA polymerase Rpb1, domain 3

Domain ID domain_id	5e17D02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	132 — Topoisomerase I; Chain A, domain 4
Homologous superfamily homologous superfamily	30 — RNA polymerase Rpb1 funnel domain

Domain ID domain_id	5e17E00
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	940 — Eukaryotic RPB6 RNA polymerase subunit
Homologous superfamily homologous superfamily	10 — RNA polymerase subunit, RPB6/omega

Domain ID domain_id	5e17F02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily	10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain

Domain ID domain_id	5e17F03
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily	10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain

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Unit-cell length a length_a	183.007 Å
Unit-cell length b length_b	103.566 Å
Unit-cell length c length_c	294.935 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	99.20 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

Space group space_group	C 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	—

Resolution resolution	3.200 Å
Low-resolution limit resolution_low	39.817 Å
R factor r_factor	0.2171
R_work r_work	0.2149
R_free r_free	0.2597

T. thermophilus transcription initiation complex having a RRR discriminator sequence and a nontemplate-strand length corresponding to TSS selection at position 7 (RPo-GGG-7)

1. Protein Identity and Related Structures Protein Identity & Related Structures

DNA-directed RNA polymerase subunit alpha

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

DNA-directed RNA polymerase subunit beta

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

;DNA-directed RNA polymerase subunit beta' ;

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

DNA-directed RNA polymerase subunit omega

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

RNA polymerase sigma factor SigA

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

5e17__assembly_1__model_1

5e17__assembly_1__model_1 | I(q)

5e17__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (11)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 polymer

Polymer Polymer

Entity 5 Entity 5 polymer

Polymer Polymer

Source Source

Entity 6 Entity 6 polymer

Polymer Polymer

Entity 7 Entity 7 polymer

Polymer Polymer

Entity 8 Entity 8 polymer

Polymer Polymer

Entity 9 Entity 9 non-polymer

Entity 10 Entity 10 non-polymer

Entity 11 Entity 11 water

6. Fold Classification (SCOP + CATH) 14 domains

CATH v4.4 (14 domains)

7. Citations (1)