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- PDB-1vfd: HUMAN LACTOFERRIN, N-TERMINAL LOBE MUTANT WITH ARG 121 REPLACED B... -

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Basic information

Entry
Database: PDB / ID: 1vfd
TitleHUMAN LACTOFERRIN, N-TERMINAL LOBE MUTANT WITH ARG 121 REPLACED BY GLU (R121E)
ComponentsLACTOFERRIN
KeywordsIRON TRANSPORT / TRANSFERRIN / GLYCOPROTEIN / METAL-BINDING
Function / homology
Function and homology information


negative regulation by host of viral process / membrane destabilizing activity / Mtb iron assimilation by chelation / phagocytic vesicle lumen / positive regulation of toll-like receptor 4 signaling pathway / Metal sequestration by antimicrobial proteins / negative regulation of viral process / negative regulation of cysteine-type endopeptidase activity / negative regulation of tumor necrosis factor (ligand) superfamily member 11 production / negative regulation of single-species biofilm formation in or on host organism ...negative regulation by host of viral process / membrane destabilizing activity / Mtb iron assimilation by chelation / phagocytic vesicle lumen / positive regulation of toll-like receptor 4 signaling pathway / Metal sequestration by antimicrobial proteins / negative regulation of viral process / negative regulation of cysteine-type endopeptidase activity / negative regulation of tumor necrosis factor (ligand) superfamily member 11 production / negative regulation of single-species biofilm formation in or on host organism / positive regulation of bone mineralization involved in bone maturation / negative regulation of lipopolysaccharide-mediated signaling pathway / specific granule / negative regulation of osteoclast development / antifungal humoral response / positive regulation of chondrocyte proliferation / negative regulation of ATP-dependent activity / regulation of tumor necrosis factor production / bone morphogenesis / Antimicrobial peptides / cysteine-type endopeptidase inhibitor activity / negative regulation of viral genome replication / positive regulation of osteoblast proliferation / humoral immune response / Hydrolases; Acting on peptide bonds (peptidases); Serine endopeptidases / positive regulation of osteoblast differentiation / regulation of cytokine production / protein serine/threonine kinase activator activity / ossification / innate immune response in mucosa / secretory granule / lipopolysaccharide binding / positive regulation of protein serine/threonine kinase activity / recycling endosome / specific granule lumen / antimicrobial humoral immune response mediated by antimicrobial peptide / tertiary granule lumen / positive regulation of NF-kappaB transcription factor activity / heparin binding / iron ion transport / antibacterial humoral response / positive regulation of canonical NF-kappaB signal transduction / defense response to Gram-negative bacterium / killing of cells of another organism / early endosome / iron ion binding / Amyloid fiber formation / serine-type endopeptidase activity / Neutrophil degranulation / negative regulation of apoptotic process / cell surface / protein-containing complex / proteolysis / DNA binding / extracellular space / extracellular exosome / extracellular region / nucleus / plasma membrane / cytoplasm
Similarity search - Function
Lactotransferrin / Transferrin-like domain signature 2. / Transferrin family, iron binding site / Transferrin-like domain signature 1. / Transferrin-like domain signature 3. / Transferrin-like domain / Transferrin / Transferrin / Transferrin-like domain profile. / Transferrin ...Lactotransferrin / Transferrin-like domain signature 2. / Transferrin family, iron binding site / Transferrin-like domain signature 1. / Transferrin-like domain signature 3. / Transferrin-like domain / Transferrin / Transferrin / Transferrin-like domain profile. / Transferrin / Periplasmic binding protein-like II / D-Maltodextrin-Binding Protein; domain 2 / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
CARBONATE ION / : / Lactotransferrin
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / Resolution: 2.5 Å
AuthorsFaber, H.R. / Day, C.L. / Baker, E.N.
Citation
Journal: Biochemistry / Year: 1996
Title: Mutation of arginine 121 in lactoferrin destabilizes iron binding by disruption of anion binding: crystal structures of R121S and R121E mutants.
Authors: Faber, H.R. / Baker, C.J. / Day, C.L. / Tweedie, J.W. / Baker, E.N.
#1: Journal: J.Mol.Biol. / Year: 1993
Title: Structure of the Recombinant N-Terminal Lobe of Human Lactoferrin at 2.0 A Resolution
Authors: Day, C.L. / Anderson, B.F. / Tweedie, J.W. / Baker, E.N.
History
DepositionOct 1, 1996Processing site: BNL
Revision 1.0Apr 21, 1997Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Nov 3, 2021Group: Database references / Derived calculations
Category: database_2 / struct_conn ...database_2 / struct_conn / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: LACTOFERRIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)36,7093
Polymers36,5931
Non-polymers1162
Water1,51384
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)98.100, 78.900, 113.600
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number20
Space group name H-MC2221

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Components

#1: Protein LACTOFERRIN / NLF


Mass: 36593.422 Da / Num. of mol.: 1 / Fragment: N-TERMINAL HALF-MOLECULE / Mutation: R121E
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: LFN / Plasmid: PNUT\:LFN / Gene (production host): LFN / Production host: Cricetinae (hamsters) / References: UniProt: P02788
#2: Chemical ChemComp-FE / FE (III) ION


Mass: 55.845 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Fe
#3: Chemical ChemComp-CO3 / CARBONATE ION


Mass: 60.009 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: CO3
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 84 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 3 Å3/Da / Density % sol: 58 %
Crystal grow
*PLUS
pH: 8 / Method: microdialysis
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
150-60 mg/mlprotein11
250 mMTris-HCl12
312 %2-propanol12

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Data collection

Diffraction sourceSource: SYNCHROTRON / Site: Photon Factory / Beamline: BL-6A / Wavelength: 1
DetectorDetector: IMAGE PLATE
RadiationMonochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionNum. obs: 13063 / % possible obs: 85.4 % / Observed criterion σ(I): 1 / Redundancy: 3.43 % / Rmerge(I) obs: 0.081
Reflection
*PLUS
Highest resolution: 2.5 Å / Num. measured all: 44825
Reflection shell
*PLUS
Highest resolution: 2.5 Å / Lowest resolution: 2.6 Å / % possible obs: 57.3 %

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Processing

Software
NameClassification
DENZOdata reduction
TNTrefinement
RefinementResolution: 2.5→20 Å / σ(F): 0
RfactorNum. reflection% reflection
Rfree0.31 1295 -
Rwork0.204 --
obs-11740 85.4 %
Refinement stepCycle: LAST / Resolution: 2.5→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2500 0 5 84 2589
Software
*PLUS
Name: TNT / Classification: refinement
Refinement
*PLUS
Rfactor obs: 0.204 / Rfactor Rfree: 0.317
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONt_bond_d0.016
X-RAY DIFFRACTIONt_angle_d
X-RAY DIFFRACTIONt_angle_deg2
X-RAY DIFFRACTIONt_plane_restr0.02

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