SAXSdb — 4wsa

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

PA

Influenza B virus

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 3 RNA 2	;Influenza B vRNA promoter 3' end ; × 1 ;Influenza B vRNA promoter 5' end ; × 1 RNA-directed RNA polymerase catalytic subunit × 1 （Q5V8Y6） PB2 × 1 （Q5V8X3）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q5V8Z9_9INFB
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain A； PDBConstruct 15–740； UniProt 1–726

RNA-directed RNA polymerase catalytic subunit

Influenza B virus

UniProt Q5V8Y6

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 3 RNA 2	;Influenza B vRNA promoter 3' end ; × 1 ;Influenza B vRNA promoter 5' end ; × 1 PA × 1 （Q5V8Z9） PB2 × 1 （Q5V8X3）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q5V8Y6_9INFB
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain B； PDBConstruct 10–761； UniProt 1–752

PB2

Influenza B virus

UniProt Q5V8X3

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein–RNA	Heteromer	Protein 3 RNA 2	;Influenza B vRNA promoter 3' end ; × 1 ;Influenza B vRNA promoter 5' end ; × 1 PA × 1 （Q5V8Z9） RNA-directed RNA polymerase catalytic subunit × 1 （Q5V8Y6）	Consistent with all polymers

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q5V8X3_9INFB
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain C； PDBConstruct 10–779； UniProt 1–770

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	4wsa
Deposition date deposition_date	2014-10-26
Structure title title	Crystal structure of Influenza B polymerase bound to the vRNA promoter (FluB1 form)
Keywords keywords	TRANSFERASE-RNA COMPLEX; TRANSFERASE/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.

4wsa__assembly_1__model_1

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

Download this curve (.dat)

4wsa__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

4wsa__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	41.34 Å
Rg (electron density)	40.78 Å
Total Rg	41.14 Å
Atom count	17940
Residues	2206
Excluded volume	319170 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`4wsa__assembly_1__model_1`	pentameric （5）	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 (5)

Entity 1 Entity 1 polymer

Description description	;Influenza B vRNA promoter 3' end ;
Molecular weight formula_weight	5584.3 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polyribonucleotide
Chain IDs strand_id	R
Atom count atom_count	17940

UAUACCUCUGCUUCUGCU

Entity 2 Entity 2 polymer

Description description	;Influenza B vRNA promoter 5' end ;
Molecular weight formula_weight	4557.8 kDa
Source method src_method	syn
Copy count entity_count	1

Polymer Polymer

Polymer type type	polyribonucleotide
Chain IDs strand_id	V

AGUAGUAACAAGAG

Entity 3 Entity 3 polymer

Description description	PA
Molecular weight formula_weight	85822.8 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A

GSHHHHHHHHGSGSMDTFITRNFQTTIIQKAKNTMAEFSEDPELQPAMLFNICVHLEVCYVISDMNFLDEEGKAYTALEGQGKEQNLRPQYEVIEGMPRTIAWMVQRSLAQEHGIETPKYLADLFDYKTKRFIEVGITKGLADDYFWKKKEKLGNSMELMIFSYNQDYSLSNESSLDEEGKGRVLSRLTELQAELSLKNLWQVLIGEEDVEKGIDFKLGQTISRLRDISVPAGFSNFEGMRSYIDNIDPKGAIERNLARMSPLVSVTPKKLTWEDLRPIGPHIYNHELPEVPYNAFLLMSDELGLANMTEGKSKKPKTLAKECLEKYSTLRDQTDPILIMKSEKANENFLWKLWRDCVNTISNEEMSNELQKTNYAKWATGDGLTYQKIMKEVAIDDETMCQEEPKIPNKCRVAAWVQTEMNLLSTLTSKRALDLPEIGPDVAPVEHVGSERRKYFVNEINYCKASTVMMKYVLFHTSLLNESNASMGKYKVIPITNRVVNEKGESFDMLYGLAVKGQSHLRGDTDVVTVVTFEFSSTDPRVDSGKWPKYTVFRIGSLFVSGREKSVYLYCRVNGTNKIQMKWGMEARRCLLQSMQQMEAIVEQESSIQGYDMTKACFKGDRVNSPKTFSIGTQEGKLVKGSFGKALRVIFTKCLMHYVFGNAQLEGFSAESRRLLLLIQALKDRKGPWVFDLEGMYSGIEECISNNPWVIQSAYWFNEWLGFEKEGSKVLESVDEIMDEGSGSGENLYFQ

Source Source

Source organism organism	Influenza B virus
NCBI taxonomy ID ncbi_taxonomy_id	289331
Host organism host_organism	Trichoplusia ni

Entity 4 Entity 4 polymer

Description description	RNA-directed RNA polymerase catalytic subunit
Molecular weight formula_weight	86207.0 kDa
EC 编号 ec_number	2.7.7.48
Mutation mutation	Trichoplusia ni
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

GSGSGSGSGMNINPYFLFIDVPIQAAISTTFPYTGVPPYSHGTGTGYTIDTVIRTHEYSNKGKQYISDVTGCTMVDPTNGPLPEDNEPSAYAQLDCVLEALDRMDEEHPGLFQAASQNAMETLMVTTVDKLTQGRQTFDWTVCRNQPAATALNTTITSFRLNDLNGADKGGLIPFCQDIIDSLDRPEMTFFSVKNIKKKLPAKNRKGFLIKRIPMKVKDKITKVEYIKRALSLNTMTKDAERGKLKRRAIATAGIQIRGFVLVVENLAKNICENLEQSGLPVGGNEKKAKLSNAVAKMLSNCPPGGISMTVTGDNTKWNECLNPRIFLAMTERITRDSPIWFRDFCSIAPVLFSNKIARLGKGFMITSKTKRLKAQIPCPDLFSIPLERYNEETRAKLKKLKPFFNEEGTASLSPGMMMGMFNMLSTVLGVAALGIKNIGNKEYLWDGLQSSDDFALFVNAKDEETCMEGINDFYRTCKLLGINMSKKKSYCNETGMFEFTSMFYRDGFVSNFAMELPSFGVAGVNESADMAIGMTIIKNNMINNGMGPATAQTAIQLFIADYRYTYKCHRGDSKVEGKRMKIIKELWENTKGRDGLLVADGGPNIYNLRNLHIPEIVLKYNLMDPEYKGRLLHPQNPFVGHLSIEGIKEADITPAHGPVKKMDYDAVSGTHSWRTKRNRSILNTDQRNMILEEQCYAKCCNLFEACFNSASYRKPVGQHSMLEAMAHRLRMDARLDYESGRMSKDDFEKAMAHLGEIGYIGSGSGENLYFQ

Source Source

Source organism organism	Influenza B virus
NCBI taxonomy ID ncbi_taxonomy_id	289331
Host organism host_organism	Trichoplusia ni

Entity 5 Entity 5 polymer

Description description	PB2
Molecular weight formula_weight	90844.1 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C

GSGSGSGSGMTLAKIELLKQLLRDNEAKTVLKQTTVDQYNIIRKFNTSRIEKNPSLRMKWAMCSNFPLALTKGDMANRIPLEYKGIQLKTNAEDIGTKGQMCSIAAVTWWNTYGPIGDTEGFERVYESFFLRKMRLDNATWGRITFGPVERVRKRVLLNPLTKEMPPDEASNVIMEILFPKEAGIPRESTWIHRELIKEKREKLKGTMITPIVLAYMLERELVARRRFLPVAGATSAEFIEMLHCLQGENWRQIYHPGGNKLTESRSQSMIVACRKIIRRSIVASNPLELAVEIANKTVIDTEPLKSCLAAIDGGDVACDIIRAALGLKIRQRQRFGRLELKRISGRGFKNDEEILIGNGTIQKIGIWDGEEEFHVRCGECRGILKKSKMKLEKLLINSAKKEDMRDLIILCMVFSQDTRMFQGVRGEINFLNRAGQLLSPMYQLQRYFLNRSNDLFDQWGYEESPKASELHGINESMNASDYTLKGVVVTRNVIDDFSSTETEKVSITKNLSLIKRTGEVIMGANDVSELESQAQLMITYDTPKMWEMGTTKELVQNTYQWVLKNLVTLKAQFLLGKEDMFQWDAFEAFESIIPQKMAGQYSGFARAVLKQMRDQEVMKTDQFIKLLPFCFSPPKLRSNGEPYQFLKLVLKGGGENFIEVRKGSPLFSYNPQTEVLTICGRMMSLKGKIEDEERNRSMGNAVLAGFLVSGKYDPDLGDFKTIEELEKLKPGEKANILLYQGKPVKVVKRKRYSALSNDISQGIKRQRMTVESMGWALSGWSHPQFEKGSGSENLYFQ

Source Source

Source organism organism	Influenza B virus
NCBI taxonomy ID ncbi_taxonomy_id	289331
Host organism host_organism	Trichoplusia ni

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Unit-cell length a length_a	199.700 Å
Unit-cell length b length_b	199.700 Å
Unit-cell length c length_c	252.680 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	120.00 °
Molecules per unit cell Z z_pdb	6

Space group space_group	P 32 2 1
Space-group number int_tables_number	154
Crystal system crystal_system	—

Resolution resolution	3.400 Å
Low-resolution limit resolution_low	48.978 Å
R factor r_factor	0.2304
R_work r_work	0.2286
R_free r_free	0.2653

Crystal structure of Influenza B polymerase bound to the vRNA promoter (FluB1 form)

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

PA

State in the Current Structure

Other States of the Same Protein in the Database

RNA-directed RNA polymerase catalytic subunit

State in the Current Structure

Other States of the Same Protein in the Database

PB2

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

4wsa__assembly_1__model_1

4wsa__assembly_1__model_1 | I(q)

4wsa__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Source Source

Entity 4 Entity 4 polymer

Polymer Polymer

Source Source

Entity 5 Entity 5 polymer

Polymer Polymer

Source Source

7. Citations (1)

Crystal structure of Influenza B polymerase bound to the vRNA promoter (FluB1 form)

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

PA

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-directed RNA polymerase catalytic subunit

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

PB2

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

4wsa__assembly_1__model_1

4wsa__assembly_1__model_1 | I(q)

4wsa__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 (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Source Source

Entity 4 Entity 4 polymer

Polymer Polymer

Source Source

Entity 5 Entity 5 polymer

Polymer Polymer

Source Source

7. Citations (1)