2fcp

FERRIC HYDROXAMATE UPTAKE RECEPTOR (FHUA) FROM E.COLI

Method: X-RAY DIFFRACTION

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

PROTEIN (FERRIC HYDROXAMATE UPTAKE RECEPTOR)

Escherichia coli

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Monomer	Protein 1 其他Polymer 1	;alpha-D-galactopyranose-(1-3)-[alpha-D-galactopyranose-(1-6)]alpha-D-glucopyranose-(1-3)-4-O-phosphono-D-glycero-beta-D-manno-heptopyranose-(1-3)-L-glycero-alpha-D-manno-heptopyranose-(1-5)-[3-deoxy-alpha-D-manno-oct-2-ulopyranosonic acid-(2-4)]3-deoxy-alpha-D-manno-oct-2-ulopyranosonic acid-(2-6)-2-amino-2-deoxy-4-O-phosphono-alpha-D-glucopyranose-(1-6)-2-amino-2-deoxy-1-O-phosphono-alpha-D-glucopyranose ; × 1 NICKEL (II) ION × 2 2-TRIDECANOYLOXY-PENTADECANOIC ACID × 2 ACETOACETIC ACID × 1 3-OXO-PENTADECANOIC ACID × 1 AMINOETHANOLPYROPHOSPHATE × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	FHUA_ECOLI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–723； UniProt 34–747

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	2fcp
Deposition date deposition_date	1998-10-15
Structure title title	FERRIC HYDROXAMATE UPTAKE RECEPTOR (FHUA) FROM E.COLI
Keywords keywords	;TONB-DEPENDENT RECEPTOR, INTEGRAL OUTER MEMBRANE PROTEIN, FERRICHROME-IRON RECEPTOR, ACTIVE TRANSPORT, IRON TRANSPORT PROTEIN, MEMBRANE PROTEIN ;; MEMBRANE PROTEIN
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.

2fcp__assembly_1__model_1

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

Download this curve (.dat)

2fcp__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2fcp__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	26.70 Å
Rg (electron density)	25.85 Å
Total Rg	26.70 Å
Atom count	5734
Residues	705
Excluded volume	100900 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2fcp__assembly_1__model_1`	monomeric （1）	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 (8)

Entity 1 Entity 1 polymer

Description description	PROTEIN (FERRIC HYDROXAMATE UPTAKE RECEPTOR)
Molecular weight formula_weight	79876.9 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	5833

AVEPKEDTITVTAAPAPQESAWGPAATIAARQSATGTKTDTPIQKVPQSISVVTAEEMALHQPKSVKEALSYTPGVSVGTRGASNTYDHLIIRGFAAEGQSQNNYLNGLKLQGNFYNDAVIDPYMLERAEIMRGPVSVLYGKSSPGGLLNMVSKRPTTEPLKEVQFKAGTDSLFQTGFDFSDSLDDDGVYSYRLTGLARSANAQQKGSEEQRYAIAPAFTWRPDDKTNFTFLSYFQNEPETGYYGWLPKEGTVEPLPNGKRLPTDFNEGAKNNTYSRNEKMVGYSFDHEFNDTFTVRQNLRFAENKTSQNSVYGYGVCSDPANAYSKQCAALAPADKGHYLARKYVVDDEKLQNFSVDTQLQSKFATGDIDHTLLTGVDFMRMRNDINAWFGYDDSVPLLNLYNPSHHHHHHGSVNTDFDFNAKDPANSGPYRILNKQKQTGVYVQDQAQWDKVLVTLGGRYDWADQESLNRVAGTTDKRDDKQFTWRGGVNYLFDNGVTPYFSYSESFEPSSQVGKDGNIFAPSKGKQYEVGVKYVPEDRPIVVTGAVYNLTKTNNLMADPEGSFFSVEGGEIRARGVEIEAKAALSASVNVVGSYTYTDAEYTTDTTYKGNTPAQVPKHMASLWADYTFFDGPLSGLTLGTGGRYTGSSYGDPANSFKVGSYTVVDALVRYDLARVGMAGSNVALHVNNLFDREYVASCFNTYGCFWGAERQVVATATFRF

Source Source

Source organism organism	Escherichia coli
NCBI taxonomy ID ncbi_taxonomy_id	83333
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 branched

Description description	;alpha-D-galactopyranose-(1-3)-[alpha-D-galactopyranose-(1-6)]alpha-D-glucopyranose-(1-3)-4-O-phosphono-D-glycero-beta-D-manno-heptopyranose-(1-3)-L-glycero-alpha-D-manno-heptopyranose-(1-5)-[3-deoxy-alpha-D-manno-oct-2-ulopyranosonic acid-(2-4)]3-deoxy-alpha-D-manno-oct-2-ulopyranosonic acid-(2-6)-2-amino-2-deoxy-4-O-phosphono-alpha-D-glucopyranose-(1-6)-2-amino-2-deoxy-1-O-phosphono-alpha-D-glucopyranose ;
Molecular weight formula_weight	1891.4 kDa
Source method src_method	man
Copy count entity_count	1

Entity 3 Entity 3 non-polymer

Description description	NICKEL (II) ION
Molecular weight formula_weight	58.7 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 non-polymer

Description description	2-TRIDECANOYLOXY-PENTADECANOIC ACID
Molecular weight formula_weight	454.7 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 5 Entity 5 non-polymer

Description description	ACETOACETIC ACID
Molecular weight formula_weight	102.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 6 Entity 6 non-polymer

Description description	3-OXO-PENTADECANOIC ACID
Molecular weight formula_weight	256.4 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 7 Entity 7 non-polymer

Description description	AMINOETHANOLPYROPHOSPHATE
Molecular weight formula_weight	221.0 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 8 Entity 8 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	99

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6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d2fcpa_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.4 — Transmembrane beta-barrels
Superfamily Superfamily superfamily	f.4.3 — Porins
Family Family family	f.4.3.3 — Ligand-gated protein channel

CATH v4.4 (2 domains)

Domain ID domain_id	2fcpA01
Class class	2 — Mainly Beta
Architecture architecture	170 — Beta Complex
Topology topology	130 — Ferric Hydroxamate Uptake Protein; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — TonB-dependent receptor, plug domain

Domain ID domain_id	2fcpA02
Class class	2 — Mainly Beta
Architecture architecture	40 — Beta Barrel
Topology topology	170 — Maltoporin; Chain A
Homologous superfamily homologous superfamily	20 — TonB-dependent receptor, beta-barrel domain

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Unit-cell length a length_a	171.550 Å
Unit-cell length b length_b	171.550 Å
Unit-cell length c length_c	87.650 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 61
Space-group number int_tables_number	169
Crystal system crystal_system	—

Resolution resolution	2.500 Å
Low-resolution limit resolution_low	30.000 Å
R factor r_factor	0.2420
R_work r_work	0.2420
R_free r_free	0.2830

FERRIC HYDROXAMATE UPTAKE RECEPTOR (FHUA) FROM E.COLI

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

PROTEIN (FERRIC HYDROXAMATE UPTAKE RECEPTOR)

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

2fcp__assembly_1__model_1

2fcp__assembly_1__model_1 | I(q)

2fcp__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 (8)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 branched

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 non-polymer

Entity 8 Entity 8 water

6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

CATH v4.4 (2 domains)

7. Citations (1)

FERRIC HYDROXAMATE UPTAKE RECEPTOR (FHUA) FROM E.COLI

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

PROTEIN (FERRIC HYDROXAMATE UPTAKE RECEPTOR)

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

2fcp__assembly_1__model_1

2fcp__assembly_1__model_1 | I(q)

2fcp__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 (8)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 branched

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 non-polymer

Entity 8 Entity 8 water

6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (1 domains)

CATH v4.4 (2 domains)

7. Citations (1)