SAXSdb — 7n88

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

Lactoferrin-binding protein B

Neisseria gonorrhoeae

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	Lactotransferrin × 1 （P02788） FE (III) ION × 2 BICARBONATE ION × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q9Z4N2_NEIGO
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 4–712； UniProt 20–728

Lactotransferrin

Homo sapiens

UniProt P02788

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 2	Lactoferrin-binding protein B × 1 （Q9Z4N2） FE (III) ION × 2 BICARBONATE ION × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	TRFL_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 1–691； UniProt 20–710

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	7n88
Deposition date deposition_date	2021-06-14
Structure title title	The cryoEM structure of LbpB from N. gonorrhoeae in complex with lactoferrin
Keywords keywords	lactoferrin, lipoprotein, neisseria, iron import, MEMBRANE PROTEIN, MEMBRANE PROTEIN-TRANSPORT PROTEIN complex; MEMBRANE PROTEIN/TRANSPORT PROTEIN
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.

7n88__assembly_1__model_1

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

Download this curve (.dat)

7n88__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

7n88__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	40.95 Å
Rg (electron density)	40.99 Å
Total Rg	41.16 Å
Atom count	9402
Residues	1220
Excluded volume	165580 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`7n88__assembly_1__model_1`	dimeric （2）	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 (4)

Entity 1 Entity 1 polymer

Description description	Lactoferrin-binding protein B
Molecular weight formula_weight	78432.7 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	9402

GAMGGNFGVQPVVESTPTAYPVTFKSKDVPTSPPPAEPSVETTPVNRPAVGAAMRLLRRNTAFHREDGTAIPDSKQAEEKLSFKEGDVLFLYGSKGNKLQQLKSEIHKRDSDVEIRTSEKENKKYGYEFVDAGYVYTKNGKDEIEQNSGGKRFTHRFGYDGFVYYSGERPSQSLPSAGTVKYFGNWQYMTDAKRHRTGKAVASDDLGYITFYGNDIGATSYAAKDADDREKHPAEYTVDFDKKILKGELIKNQYVQKKNDPKKPLTIYNITADLNGNRFTGSAKVNTEVKTRHADKEYLFFHTDADQRLEGGFFGDNGEELAGRFISNDNGVFGVFAGKQKTNASGTNPAMPFGKHTKILDSLKISVDEATDENPRPFEVSTMPDFGHPDKLLVEGREIPLVSKEKTIDLADGRKMTVSACCDFLTYVKLGRIKTERPAVKPKAQDEEDSGINNGEESEDEEEIAEESEDEVSEDDNGEDEDEIVEEEADEAEEIEEEAEEEEPEEESPEEGNGVSDGIPPAPEALKGRDIDLFLKGIRTAEADIPKTGTAHYTGTWEARIGEPIQWDNKADKAAKAEFDVDFGNKSISGTLTEQNGVEPAFRIENGVIEGNGFHATARTRDNGINLSGNGSTNPQSFKADNLLVTGGFYGPQAAELGGTIFNKDGKSLGITEDIENEVENEADVGEQLEPEVKPQFGVVFGAKKDNKEVEK

Source Source

Source organism organism	Neisseria gonorrhoeae
NCBI taxonomy ID ncbi_taxonomy_id	485
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 2 Entity 2 polymer

Description description	Lactotransferrin
Molecular weight formula_weight	76263.3 kDa
EC 编号 ec_number	3.4.21.-
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

GRRRSVQWCAVSQPEATKCFQWQRNMRKVRGPPVSCIKRDSPIQCIQAIAENRADAVTLDGGFIYEAGLAPYKLRPVAAEVYGTERQPRTHYYAVAVVKKGGSFQLNELQGLKSCHTGLRRTAGWNVPIGTLRPFLNWTGPPEPIEAAVARFFSASCVPGADKGQFPNLCRLCAGTGENKCAFSSQEPYFSYSGAFKCLRDGAGDVAFIRESTVFEDLSDEAERDEYELLCPDNTRKPVDKFKDCHLARVPSHAVVARSVNGKEDAIWNLLRQAQEKFGKDKSPKFQLFGSPSGQKDLLFKDSAIGFSRVPPRIDSGLYLGSGYFTAIQNLRKSEEEVAARRARVVWCAVGEQELRKCNQWSGLSEGSVTCSSASTTEDCIALVLKGEADAMSLDGGYVYTAGKCGLVPVLAENYKSQQSSDPDPNCVDRPVEGYLAVAVVRRSDTSLTWNSVKGKKSCHTAVDRTAGWNIPMGLLFNQTGSCKFDEYFSQSCAPGSDPRSNLCALCIGDEQGENKCVPNSNERYYGYTGAFRCLAENAGDVAFVKDVTVLQNTDGNNNEAWAKDLKLADFALLCLDGKRKPVTEARSCHLAMAPNHAVVSRMDKVERLKQVLLHQQAKFGRNGSDCPDKFCLFQSETKNLLFNDNTECLARLHGKTTYEKYLGPQYVAGITNLKKCSTSPLLEACEFLRK

Source Source

Source organism organism	Homo sapiens
Common name common_name	Human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Oryza sativa

Entity 3 Entity 3 non-polymer

Description description	FE (III) ION
Molecular weight formula_weight	55.8 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 non-polymer

Description description	BICARBONATE ION
Molecular weight formula_weight	61.0 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	3.70 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	127832

The cryoEM structure of LbpB from N. gonorrhoeae in complex with lactoferrin

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

Lactoferrin-binding protein B

State in the Current Structure

Other States of the Same Protein in the Database

Lactotransferrin

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

7n88__assembly_1__model_1

7n88__assembly_1__model_1 | I(q)

7n88__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

7. Citations (1)

The cryoEM structure of LbpB from N. gonorrhoeae in complex with lactoferrin

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

Lactoferrin-binding protein B

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Lactotransferrin

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

7n88__assembly_1__model_1

7n88__assembly_1__model_1 | I(q)

7n88__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

7. Citations (1)