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9uko

CryoEM structure of the T.thermophilus transcription initiation complex bound to Ap4A-C, -1 dA in the template DNA strand

Method: ELECTRON MICROSCOPY D_max: 184.6 Å Quality: GOOD

SAXS Profile

P(r) Distribution

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1. Structure Basics

entry_id	9uko
deposition_date	2025-04-18
title	CryoEM structure of the T.thermophilus transcription initiation complex bound to Ap4A-C, -1 dA in the template DNA strand
keywords	Complex, TRANSCRIPTION; TRANSCRIPTION
method	ELECTRON MICROSCOPY

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Download Data

SAXS curve (.dat) P(r) distribution (.pr.out) Structure (CIF)

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2. SAXS Parameters (CRYSOL)

rg_guinier	50.18 Å
rg_electron	49.99 Å
i0	2568150000.00
molecular_weight	408350.0 kDa
excluded_volume	505550 Å³
envelope_volume	707370 Å³
shell_volume	114050 Å³
envelope_diameter	199.1 Å
shell_rg	56.50 Å
envelope_rg	49.92 Å
shape_rg	49.99 Å
total_rg	50.18 Å
total_atoms	28641
n_residues	3458
n_harmonics	20
q_range	— – 0.5000 Å⁻¹
n_points	101
shell_type	directional
solvent_density	0.3340 e/Å³
contrast_shell	0.0300 e/Å³
crysol_version	4.1.3

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3. P(r) Analysis (GNOM)

dmax	184.6 Å
rg_real	50.15 Å
rg_real_error	1.64 Å
i0_real	2.5680e+09
i0_real_error	4.9220e+07
rg_reciprocal	50.21 Å
i0_reciprocal	2568000000.0000
total_estimate	0.8298
solution_quality	GOOD a GOOD solution
n_peaks	2
r_peak_primary	59.5 Å
skewness	0.422
kurtosis	0.053
angular_range	— – 0.1550 Å⁻¹
current_alpha	0.0000
highest_alpha	524400000.0000
n_real_points	32
gnom_version	4.1.3
quality_criteria	AN1: 0.000; Oscil: 0.608; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.994; Smooth: 0.966

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4. Crystallography & Experiment

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5. Entities & Polymer Info (12)

Entity 1 polymer

description	DNA-directed RNA polymerase subunit alpha
formula_weight	35056.2 kDa
ec_number	2.7.7.6
src_method	nat
entity_count	2

Polymer

type	polypeptide(L)
strand_id	A,B
atom_count	28641

MLDSKLKAPVFTVRTQGREYGEFVLEPLERGFGVTLGNPLRRILLSSIPGTAVTSVYIEDVLHEFSTIPGVKEDVVEIILNLKELVVRFLNPSLQTVTLLLKAEGPKEVKARDFLPVADVEIMNPDLHIATLEEGGRLNMEVRVDRGVGYVPAEKHGIKDRINAIPVDAVFSPVRRVAFQVEDTRLGQRTDLDKLTLRIWTDGSVTPLEALNQAVEILREHLTYFSNPQAAAVAAPEEAKEPEAPPEQEEELDLPLEELGLSTRVLHSLKEEGIESVRALLALNLKDLKNIPGIGERSLEEIKEALEKKGFTLKE

Entity 2 polymer

description	DNA-directed RNA polymerase subunit beta
formula_weight	125436.5 kDa
ec_number	2.7.7.6
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	C

MEIKRFGRIREVIPLPPLTEIQVESYRRALQADVPPEKRENVGIQAAFRETFPIEEEDKGKGGLVLDFLEYRLGEPPFPQDECREKDLTYQAPLYARLQLIHKDTGLIKEDEVFLGHIPLMTEDGSFIINGADRVIVSQIHRSPGVYFTPDPARPGRYIASIIPLPKRGPWIDLEVEPNGVVSMKVNKRKFPLVLLLRVLGYDQETLARELGAYGELVQGLMDESVFAMRPEEALIRLFTLLRPGDPPKRDKAVAYVYGLIADPRRYDLGEAGRYKAEEKLGIRLSGRTLARFEDGEFKDEVFLPTLRYLFALTAGVPGHEVDDIDHLGNRRIRTVGELMTDQFRVGLARLARGVRERMLMGSEDSLTPAKLVNSRPLEAAIREFFSRSQLSQFKDETNPLSSLRHKRRISALGPGGLTRERAGFDVRDVHRTHYGRICPVETPEGANIGLITSLAAYARVDELGFIRTPYRRVVGGVVTDEVVYMTATEEDRYTIAQANTPLEGNRIAAERVVARRKGEPVIVSPEEVEFMDVSPKQVFSVNTNLIPFLEHDDANRALMGSNMQTQAVPLIRAQAPVVMTGLEERVVRDSLAALYAEEDGEVAKVDGNRIVVRYEDGRLVEYPLRRFYRSNQGTALDQRPRVVVGQRVRKGDLLADGPASENGFLALGQNVLVAIMPFDGYNFEDAIVISEELLKRDFYTSIHIERYEIEARDTKLGPERITRDIPHLSEAALRDLDEEGVVRIGAEVKPGDILVGRTSFKGESEPTPEERLLRSIFGEKARDVKDTSLRVPPGEGGIVVRTVRLRRGDPGVELKPGVREVVRVYVAQKRKLQVGDKLANRHGNKGVVAKILPVEDMPHLPDGTPVDVILNPLGVPSRMNLGQILETHLGLAGYFLGQRYISPIFDGAKEPEIKELLAQAFEVYFGKRKGEGFGVDKREVEVLRRAEKLGLVTPGKTPEEQLKELFLQGKVVLYDGRTGEPIEGPIVVGQMFIMKLYHMVEDKMHARSTGPYSLITQQPLGGKAQFGGQRFGEMEVWALEAYGAAHTLQEMLTLKSDDIEGRNAAYEAIIKGEDVPEPSVPESFRVLVKELQALALDVQTLDEKDNPVDIFEGLASKR

Entity 3 polymer

description	;DNA-directed RNA polymerase subunit beta' ;
formula_weight	170997.4 kDa
ec_number	2.7.7.6
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	D

MKKEVRKVRIALASPEKIRSWSYGEVEKPETINYRTLKPERDGLFDERIFGPIKDYECACGKYKRQRFEGKVCERCGVEVTKSIVRRYRMGHIELATPAAHIWFVKDVPSKIGTLLDLSATELEQVLYFSKYIVLDPKGAILNGVPVEKRQLLTDEEYRELRYGKQETYPLPPGVDALVKDGEEVVKGQELAPGVVSRLDGVALYRFPRRVRVEYVKKERAGLRLPLAAWVEKEAYKPGEILAELPEPYLFRAEEEGVVELKELEEGAFLVLRREDEPVATYFLPVGMTPLVVHGEIVEKGQPLAEAKGLLRMPRQVRAAQVEAEEEGETVYLTLFLEWTEPKDYRVQPHMNVVVPEGARVEAGDKIVAAIDPEEEVIAEAEGVVHLHEPASILVVKARVYPFEDDVEVSTGDRVAPGDVLADGGKVKSDVYGRVEVDLVRNVVRVVESYDIDARMGAEAIQQLLKELDLEALEKELLEEMKHPSRARRAKARKRLEVVRAFLDSGNRPEWMILEAVPVLPPDLRPMVQVDGGRFATSDLNDLYRRLINRNNRLKKLLAQGAPEIIIRNEKRMLQEAVDALLDNGRRGAPVTNPGSDRPLRSLTDILSGKQGRFRQNLLGKRVDYSGRSVIVVGPQLKLHQCGLPKRMALELFKPFLLKKMEEKGIAPNVKAARRMLERQRDIKDEVWDALEEVIHGKVVLLNRAPTLHRLGIQAFQPVLVEGQSIQLHPLVCEAFNADFDGDQMAVHVPLSSFAQAEARIQMLSAHNLLSPASGEPLAKPSRDIILGLYYITQVRKEKKGAGLEFATPEEALAAHERGEVALNAPIKVAGRETSVGRLKYVFANPDEALLAVAHGIVDLQDVVTVRYMGKRLETSPGRILFARIVAEAVEDEKVAWELIQLDVPQEKNSLKDLVYQAFLRLGMEKTARLLDALKYYGFTFSTTSGITIGIDDAVIPEEKKQYLEEADRKLLQIEQAYEMGFLTDRERYDQILQLWTETTEKVTQAVFKNFEENYPFNPLYVMAQSGARGNPQQIRQLCGLRGLMQKPSGETFEVPVRSSFREGLTVLEYFISSHGARKGGADTALRTADSGYLTRKLVDVTHEIVVREADCGTTNYISVPLFQPDEVTRSLRLRKRADIEAGLYGRVLAREVEVLGVRLEEGRYLSMDDVHLLIKAAEAGEIQEVPVRSPLTCQTRYGVCQKCYGYDLSMARPVSIGEAVGIVAAQSIGEPGTQLTMRTFHTGGVAGAADITQGLPRVIELFEARRPKAKAVISEIDGVVRIEETEEKLSVFVESEGFSKEYKLPKEARLLVKDGDYVEAGQPLTRGAIDPHQLLEAKGPEAVERYLVEEIQKVYRAQGVKLHDKHIEIVVRQMMKYVEVTDPGDSRLLEGQVLEKWDVEALNERLIAEGKTPVAWKPLLMGVTKSALSTKSWLSAASFQNTTHVLTEAAIAGKKDELIGLKENVILGRLIPAGTGSDFVRFTQVVDQKTLKAIEEARKEAVEAKERPAARRGVKREQPGKQA

Entity 4 polymer

description	DNA-directed RNA polymerase subunit omega
formula_weight	11533.3 kDa
ec_number	2.7.7.6
src_method	nat
entity_count	1

Polymer

type	polypeptide(L)
strand_id	E

MAEPGIDKLFGMVDSKYRLTVVVAKRAQQLLRHGFKNTVLEPEERPKMQTLEGLFDDPNAVTWAMKELLTGRLVFGENLVPEDRLQKEMERLYPVEREE

Entity 5 polymer

description	RNA polymerase sigma factor SigA
formula_weight	50900.6 kDa
src_method	man
entity_count	1

Polymer

type	polypeptide(L)
strand_id	F

MGSSHHHHHHSSGLVPRGSHMMKKSKRKNAQAQEAQETEVLVQEEAEELPEFPEGEPDPDLEDPDLTLEDDLLDLPEEGEGLDLEEEEEDLPIPKISTSDPVRQYLHEIGQVPLLTLEEEVELARKVEEGMEAIKKLSEITGLDPDLIREVVRAKILGSARVRHIPGLKETLDPKTVEEIDQKLKSLPKEHKRYLHIAREGEAARQHLIEANLRLVVSIAKKYTGRGLSFLDLIQEGNQGLIRAVEKFEYKRRFKFSTYATWWIRQAINRAIADQARTIRIPVHMVETINKLSRTARQLQQELGREPTYEEIAEAMGPGWDAKRVEETLKIAQEPVSLETPIGDEKDSFYGDFIPDEHLPSPVDAATQSLLSEELEKALSKLSEREAMVLKLRKGLIDGREHTLEEVGAFFGVTRERIRQIENKALRKLKYHESRTRKLRDFLD

Source

organism	Thermus thermophilus HB8
ncbi_taxonomy_id	300852
host_organism	Escherichia coli BL21(DE3)

Entity 6 polymer

description	template DNA strand
formula_weight	14855.6 kDa
src_method	syn
entity_count	1

Polymer

type	polydeoxyribonucleotide
strand_id	G

GCATCCGTGAGTAGAGGGTAATAAGCACAATTTAACACTTTTGTCAAG

Entity 7 polymer

description	non-template DNA strand
formula_weight	14863.5 kDa
src_method	syn
entity_count	1

Polymer

type	polydeoxyribonucleotide
strand_id	H

CTTGACAAAAGTGTTAAATTGTGCTATACTGGGAGCCGTCACGGATGC

Entity 8 non-polymer

description	MAGNESIUM ION
formula_weight	24.3 kDa
src_method	syn
entity_count	4

Entity 9 non-polymer

description	CHAPSO
formula_weight	631.9 kDa
src_method	syn
entity_count	1

Entity 10 non-polymer

description	ZINC ION
formula_weight	65.4 kDa
src_method	syn
entity_count	2

Entity 11 non-polymer

description	CYTIDINE-5'-MONOPHOSPHATE
formula_weight	323.2 kDa
src_method	syn
entity_count	1

Entity 12 non-polymer

description	BIS(ADENOSINE)-5'-TETRAPHOSPHATE
formula_weight	836.4 kDa
src_method	syn
entity_count	1

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6. Citations (1)

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length_a	1.000 Å
length_b	1.000 Å
length_c	1.000 Å
angle_alpha	90.00 °
angle_beta	90.00 °
angle_gamma	90.00 °
z_pdb	—

space_group	P 1
int_tables_number	1
crystal_system	—

resolution	2.890 Å
resolution_low	— Å
r_factor	—
r_work	—
r_free	—

resolution	2.89 Å
resolution_method	—
num_particles	414941

fit	/app/data/saxs_computation/uk/9uko/9uko.fit
pddf	/app/data/pr_computation/uk/9uko/9uko.pr.out
profile	/app/data/saxs_computation/uk/9uko/9uko.dat

CryoEM structure of the T.thermophilus transcription initiation complex bound to Ap4A-C, -1 dA in the template DNA strand

SAXS Profile

P(r) Distribution

1. Structure Basics

Download Data

2. SAXS Parameters (CRYSOL)

3. P(r) Analysis (GNOM)

4. Crystallography & Experiment

Unit Cell

Symmetry

Refinement

EM 3D

5. Entities & Polymer Info (12)

Entity 1 polymer

Polymer

Entity 2 polymer

Polymer

Entity 3 polymer

Polymer

Entity 4 polymer

Polymer

Entity 5 polymer

Polymer

Source

Entity 6 polymer

Polymer

Entity 7 polymer

Polymer

Entity 8 non-polymer

Entity 9 non-polymer

Entity 10 non-polymer

Entity 11 non-polymer

Entity 12 non-polymer

6. Citations (1)

7. Files & Curves (10)

Files (7)

Curves (3)