9pfq

The cryo-EM structure of C. crescentus DriD-ssDNA-RNAP-Sigma73-bapE promoter transcription activation complex

Method: ELECTRON MICROSCOPY

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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	Protein–DNA	Heteromer	Protein 8 DNA 4	DNA-directed RNA polymerase subunit beta × 1 （Q9AAU2） ;DNA-directed RNA polymerase subunit beta' ; × 1 （Q9AAU1） DNA-directed RNA polymerase subunit omega × 1 （P58066） RNA polymerase sigma factor RpoD × 1 （P52324） DNA (64-MER)-non template × 1 DNA (51-MER)-template × 1 WYL domain-containing protein × 2 （Q9A999） ;DNA (5'-D(PGPTP*C)-3') ; × 2 MAGNESIUM ION × 1 ZINC ION × 2	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RPOA_CAUVC
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–338； UniProt 1–338 Author chain B； PDBConstruct 1–338； UniProt 1–338

DNA-directed RNA polymerase subunit beta

OrganismNot specified

UniProt Q9AAU2

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–DNA	Heteromer	Protein 8 DNA 4	DNA-directed RNA polymerase subunit alpha × 2 （Q9A8S9） ;DNA-directed RNA polymerase subunit beta' ; × 1 （Q9AAU1） DNA-directed RNA polymerase subunit omega × 1 （P58066） RNA polymerase sigma factor RpoD × 1 （P52324） DNA (64-MER)-non template × 1 DNA (51-MER)-template × 1 WYL domain-containing protein × 2 （Q9A999） ;DNA (5'-D(PGPTP*C)-3') ; × 2 MAGNESIUM ION × 1 ZINC ION × 2	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RPOB_CAUVC
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain C； PDBConstruct 1–1356； UniProt 1–1356

;DNA-directed RNA polymerase subunit beta' ;

OrganismNot specified

UniProt Q9AAU1

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–DNA	Heteromer	Protein 8 DNA 4	DNA-directed RNA polymerase subunit alpha × 2 （Q9A8S9） DNA-directed RNA polymerase subunit beta × 1 （Q9AAU2） DNA-directed RNA polymerase subunit omega × 1 （P58066） RNA polymerase sigma factor RpoD × 1 （P52324） DNA (64-MER)-non template × 1 DNA (51-MER)-template × 1 WYL domain-containing protein × 2 （Q9A999） ;DNA (5'-D(PGPTP*C)-3') ; × 2 MAGNESIUM ION × 1 ZINC ION × 2	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RPOC_CAUVC
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain D； PDBConstruct 1–1396； UniProt 1–1396

DNA-directed RNA polymerase subunit omega

OrganismNot specified

UniProt P58066

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–DNA	Heteromer	Protein 8 DNA 4	DNA-directed RNA polymerase subunit alpha × 2 （Q9A8S9） DNA-directed RNA polymerase subunit beta × 1 （Q9AAU2） ;DNA-directed RNA polymerase subunit beta' ; × 1 （Q9AAU1） RNA polymerase sigma factor RpoD × 1 （P52324） DNA (64-MER)-non template × 1 DNA (51-MER)-template × 1 WYL domain-containing protein × 2 （Q9A999） ;DNA (5'-D(PGPTP*C)-3') ; × 2 MAGNESIUM ION × 1 ZINC ION × 2	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RPOZ_CAUVC
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain E； PDBConstruct 1–119； UniProt 1–119

RNA polymerase sigma factor RpoD

Caulobacter vibrioides NA1000

UniProt P52324

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–DNA	Heteromer	Protein 8 DNA 4	DNA-directed RNA polymerase subunit alpha × 2 （Q9A8S9） DNA-directed RNA polymerase subunit beta × 1 （Q9AAU2） ;DNA-directed RNA polymerase subunit beta' ; × 1 （Q9AAU1） DNA-directed RNA polymerase subunit omega × 1 （P58066） DNA (64-MER)-non template × 1 DNA (51-MER)-template × 1 WYL domain-containing protein × 2 （Q9A999） ;DNA (5'-D(PGPTP*C)-3') ; × 2 MAGNESIUM ION × 1 ZINC ION × 2	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RPOD_CAUVC
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain F； PDBConstruct 1–652； UniProt 1–652

WYL domain-containing protein

Caulobacter vibrioides NA1000

UniProt Q9A999

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–DNA	Heteromer	Protein 8 DNA 4	DNA-directed RNA polymerase subunit alpha × 2 （Q9A8S9） DNA-directed RNA polymerase subunit beta × 1 （Q9AAU2） ;DNA-directed RNA polymerase subunit beta' ; × 1 （Q9AAU1） DNA-directed RNA polymerase subunit omega × 1 （P58066） RNA polymerase sigma factor RpoD × 1 （P52324） DNA (64-MER)-non template × 1 DNA (51-MER)-template × 1 ;DNA (5'-D(PGPTP*C)-3') ; × 2 MAGNESIUM ION × 1 ZINC ION × 2	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q9A999_CAUVC
Isoform	—
PDB entities	8
Chains and sequence ranges	Author chain Q； PDBConstruct 1–331； UniProt 1–331 Author chain R； PDBConstruct 1–331； UniProt 1–331

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	9pfq
Deposition date deposition_date	2025-07-06
Structure title title	The cryo-EM structure of C. crescentus DriD-ssDNA-RNAP-Sigma73-bapE promoter transcription activation complex
Keywords keywords	;bapE promoter transcription activation complex, DriD, Caulobacter, TRANSCRIPTION, Non-canonical DNA Repair, TRANSCRIPTION-DNA complex ;; TRANSCRIPTION/DNA
Experimental Method method	ELECTRON MICROSCOPY

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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.

9pfq__assembly_1__model_1

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

Download this curve (.dat)

9pfq__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

9pfq__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	58.23 Å
Rg (electron density)	57.43 Å
Total Rg	57.45 Å
Atom count	36040
Residues	4574
Excluded volume	632520 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`9pfq__assembly_1__model_1`	12-meric （12）	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	37315.5 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	36040

MIERNWNELIRPEKPQIETGADATRKARIVAEPLERGFGVTLGNALRRVLLSSLQGAAVTAIQIDGVVHEFSSLEGVREDVVDIVLNIKQLAVRMHAEGPKRMTLRATGPGPVTAGQIETPADIEILNPDHVLCTLDDGASVRMEFTVNNGKGYVPADRNRPEDAPIGLIAVDALYSPVKRVAYRVEPTRQGQSLDYDKLILEVETNGAVTPVDAVAYAARILQDQLQIFITFEEPKAKSADESKPELPFNPALLKKVDELELSVRSANCLKNDNIVYIGDLIQKTEAEMLRTPNFGRKSLNEIKEVLAGMGLHLGMDVPNWPPENIEDLAKKFEDQI

Entity 2 Entity 2 polymer

Description description	DNA-directed RNA polymerase subunit beta
Molecular weight formula_weight	151085.6 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

MAQSFTGKKRIRKSFGRIPEAVQMPNLIEVQRSSYEQFLQRETRPGLRRDEGVEAVFKSVFPIKDFNERAVLEYVSYEFEEPKYDVEECIQRDMTFAAPLKVKLRLIVFETEEETGARSVKDIKEQDVYMGDIPLMTDKGTFIVNGTERVIVSQMHRSPGVFFDHDKGKTHASGKLLFAARVIPYRGSWLDFEFDAKDIVYVRIDRRRKLPATTFLYALGMDGEEILTTFYDVVPFEKRSGGWATPYKPERWRGVKPEFPLVDADTGEEVAPAGTKITARQAKKFADGGLKTLLLAPEALTGRYLARDAVNMATGEIYAEAGDELDVTSIQALADQGFSTIDVLDIDHVTVGAYMRNTLRVDKNAIREDALFDIYRVMRPGEPPTVEAAEAMFKSLFFDAERYDLSSVGRVKMNMRLEQDVSDEVRILRKEDVLAVLKVLVGLRDGRGEIDDIDNLGNRRVRSVGELLENQYRVGLLRMERAIKERMSSVDIDTVMPHDLINAKPAAAAVREFFGSSQLSQFMDQTNPLSEITHKRRLSALGPGGLTRERAGFEVRDVHPTHYGRICPIETPEGPNIGLINSLATHARVNKYGFIESPYRRVKDGKPQDEVVYMSAMEESKHVIAQSNIKVAEGEIVEDLVPGRINGEPTLLQKETVDLMDVSPRQVVSVAAALIPFLENDDANRALMGSNMQRQAVPLVQSDAPLVGTGMEAVVARDSGAVVIAKRTGVVEQIDGTRIVIRATEETDPARSGVDIYRMSKFQRSNQSTCINQRPLVKVGDRIVAGDIIADGPSTELGELALGRNALVAFMPWNGYNFEDSILISERIVRDDVFTSIHIEEFEVMARDTKLGPEEITRDIPNVGEEALRNLDEAGIVAIGAEVQPGDILVGKVTPKGESPMTPEEKLLRAIFGEKASDVRDTSLRLPPGVAGTIVDVRVFNRHGVDKDERALAIERAEIDRLGKDRDDEFAILNRNISGRLKELLIGKVALSGPKGLSRGEITAEGLAQVASGLWWQIALEDEKAMGELESLRRLFDENRKRLDRRFEDKVDKLQRGDELPPGVMKMVKVFVAVKRKLQPGDKMAGRHGNKGVISRILPIEDMPFLADGTHVDVVLNPLGVPSRMNVGQIFETHLGWACANLGKQITNLLEDWQQGGQKQALVERLTEIYGPDEELPDTEEGLVELARNLGKGVPIATPVFDGARMDDIEGHLEMAGVNKSGQSILFDGLTGEQFKRPVTVGYIYMLKLHHLVDDKIHARSIGPYSLVTQQPLGGKAQFGGQRFGEMEVWALEAYGAAYTLQEMLTVKSDDVAGRTKVYESIVRGDDTFEAGIPESFNVLVKEMRSLGLNVELENS

Entity 3 Entity 3 polymer

Description description	;DNA-directed RNA polymerase subunit beta' ;
Molecular weight formula_weight	154467.0 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

MNQEVLNIFNPVQAAPTFDQIRISLASPEKIRSWSFGEIKKPETINYRTFKPERDGLFCARIFGPTKDYECLCGKYKRMKYKGIICEKCGVEVTLARVRRERMGHIELASPVAHIWFLKSLPSRIAMMLDMPLKDIERVLYFEYYIVTEPGLTPLKQHQLLSEDDYMRAQEEYGDDSFTAEIGAEAIQNLLKAIDLEKEAERLREELSGTVSDMKQKKFSKRLKILEAFQESGNRPEWMVLTVVPVIPPELRPLVPLDGGRFATSDLNDLYRRVINRNNRLKRLIELRAPDIIIRNEKRMLQESVDALFDNGRRGRVITGANKRPLKSLADMLKGKQGRFRQNLLGKRVDYSGRSVIVVGPELKLHECGLPKKMALELFKPFIYARLDAKGLSGTVKQSKRMVEREQPQVWDILEEVIREHPVLLNRAPTLHRLGIQAFEPKLIEGKAIQLHPLVCAAFNADFDGDQMAVHVPLSLEAQLEARVLMMSTNNILSPANGRPIIVPSQDIVLGLYYLSVARDGEPGEGKIFADLGEIEAAMDAGVVSLHAKIKARHTEMTPEGVLLRKVIDTTPGRMKIAALLPHHPQIGHRLIEKALTKKEIGNLIDIVYRHCGQKATVIFADKVMGLGFKEAAKAGISFGKDDIIIPVRKTAIVEETRKLAEEYEQQYADGLITKGEKYNKVVDAWAKATDRVADEMMAELQMKHKDENGREKEINAIYMMAHSGARGSQAQMKQLGGMRGLMAKPSGEIIETPIVSNFKEGLTVQEYFNSTHGARKGLADTALKTANSGYLTRRLVDVAQDCIIVEEDCGTTKGITLRAVVEGGDVLVSLGSRVLGRFTAEDVKDPGTGELVVPADTYIDENIADAIEAAVVQSVKVRSVLTCEAKIGVCGACYGRDLARGTPVNIGEAVGVIAAQSIGEPGTQLTMRTFHIGGTAQVAEQSFFEASNEGTVRVIGPTVVGSDGALVIMSRNTSVSVLVDGKERETYKPPYGARLRVKDGDLVKRGQRLGDWDPYTTPIITEVAGKIRAEDLVDGLSIREEVDEATGIAQRVVADWRTSARGSDLRPAMGVLSEDGSYKRLSNGGEARYLLSAGAILSVADGDEVKPGEVIARIPTEGAKTRDITGGLPRVAELFEARRPKDCAVIAEMDGRVEFGKDYKNKRRIKITPDVDADGNQPEAVEFLIPKGKHIAVHDGDYITKGEYIIDGNPDPHDILRILGVEALANFLVDEIQEVYRLQGVPINDKHIETIVRQMLQKVEILEPGDTGLIKGDHLDKPEFDKEQEKAIARGGRPAVTQPVLLGITKASLQTKSFISAASFQETTRVLTEASVHGKTDTLEGLKENVIVGRLIPAGTGSYLRSLQRVAAKRDEQLAQQREDAMEPLPAEIALSDAE

Entity 4 Entity 4 polymer

Description description	DNA-directed RNA polymerase subunit omega
Molecular weight formula_weight	13289.8 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

MARVTVEDCVEKVPNRFALVLLSAHRARGISAGAALMVDRDNDKNPVVALREIADDVIDHEGLKEHLISTLQRVDEHTEAEEEAETLALLADPSHMQMSELELVRALQSDRDGGQEERY

Entity 5 Entity 5 polymer

Description description	RNA polymerase sigma factor RpoD
Molecular weight formula_weight	72770.2 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	F

MSNNSSAETEAPETTGGDGPLLDLTDAGVKKFIKQAKARGYVTMDELNKVLPSEEVSPDAIEDTLAMLSEMGVNVVEAEEDAENAEGGEVATRDENTTVIASDKPAAYDRTDDPVRMYLREMGSVELLSREGEIAIAKRIEAGRDTMIRGLCESALTFEAIMVWREELGTGRILLREVIDLEGTYAAINGVAAQPAAEDDEGPAEPVDDEAGEAKAEGAEGEDEDDFDDGAGPTVSAMEGELREGVMAILDAIASEFEAFRKLQDKLVGSRLKGEDLSDADRKAYEGLSATIIQHLKTLKLNNNRIEALVEQLYAINKRLIGLEGRLLRLADSYGISRGEFLKAYFGSELNPTWSEQVKAMGVRWTKFVENDSQSVTDIRSEIAALATETGVPIDDYRRIVQTVQKGEREARQAKKEMVEANLRLVISIAKKYTNRGLQFLDLIQEGNIGLMKAVDKFEYRRGYKFSTYATWWIRQAITRSIADQARTIRIPVHMIETINKIVRTSRQMLHEIGREPTPEELAEKLAMPLEKVRKVLKIAKEPISLETPIGDEEDSHLGDFIEDKNAILPIDAAIQSNLRETTTRVLASLTPREERVLRMRFGIGMNTDHTLEEVGQQFSVTRERIRQIEAKALRKLKHPSRSRKLRSFLDS

Source Source

Source organism organism	Caulobacter vibrioides NA1000
NCBI taxonomy ID ncbi_taxonomy_id	565050
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 6 Entity 6 polymer

Description description	DNA (64-MER)-non template
Molecular weight formula_weight	27645.6 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polydeoxyribonucleotide
Chain IDs strand_id	H

GCGCAGCGTTGGCGGACATACCAAGCCCCAAAAGTTCGCGTTATGTTCTCTTCTGGCGCACCCCTGCGTCAAGCCGGGACGCCGCGACAT

Entity 7 Entity 7 polymer

Description description	DNA (51-MER)-template
Molecular weight formula_weight	27885.7 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polydeoxyribonucleotide
Chain IDs strand_id	I

ATGTCGCGGCGTCCCGGCTTGACGCAGGGGTGCGCCAGAAGAGAACATAACGCGAACTTTTGGGGCTTGGTATGTCCGCCAACGCTGCGC

Entity 8 Entity 8 polymer

Description description	WYL domain-containing protein
Molecular weight formula_weight	36212.2 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	Q,R

MTGGMRHEKATRLLDLARMLAGSAEGLTLDEMAAALGVGRRTAERMRDAVWAAFPQMEAIDDPPTKRFRIPSGLDGVFQTPTAEELAALRVAADSLRASGADARASSLYALEAKLLSALRGSARRRVAPDVEALVQAETIAVHAGPRPYEDQAVLGAIRAAIKGLQALSFRYEGGSTPGRTREVTPLGVLFGRSNYLVALEGKGGKPRSWRLDRMSDLKVLDKPAPPPQDFSLQAFADESFGIYHDEIQDVVLRIHKSRAEDALRWRFHATQQVTPEADGSVLVTFRAGGMRELSWHLFTWGDAVEIVAPQVLKDMMVQELREAGRAHGAW

Source Source

Source organism organism	Caulobacter vibrioides NA1000
NCBI taxonomy ID ncbi_taxonomy_id	565050
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 9 Entity 9 polymer

Description description	;DNA (5'-D(PGPTP*C)-3') ;
Molecular weight formula_weight	2103.4 kDa
Source method src_method	syn
Copy count entity_count	2

Polymer Polymer

Polymer type type	polydeoxyribonucleotide
Chain IDs strand_id	L,Y

TGTCTAT

Entity 10 Entity 10 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 11 Entity 11 non-polymer

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

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	—

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

Resolution resolution	4.240 Å
Low-resolution limit resolution_low	— Å
R factor r_factor	—
R_work r_work	—
R_free r_free	—

Resolution resolution	4.24 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	13962

The cryo-EM structure of C. crescentus DriD-ssDNA-RNAP-Sigma73-bapE promoter transcription activation complex

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 RpoD

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

WYL domain-containing protein

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

9pfq__assembly_1__model_1

9pfq__assembly_1__model_1 | I(q)

9pfq__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

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

Source Source

Entity 9 Entity 9 polymer