1AE5

HUMAN HEPARIN BINDING PROTEIN

• PDB DOI: https://doi.org/10.2210/pdb1AE5/pdb

• Classification: SERINE PROTEASE HOMOLOG
• Organism(s): Homo sapiens
• Expression System: unidentified baculovirus
• Mutation(s): No 


• Deposited: 1997-03-05 Released: 1998-03-11 
• Deposition Author(s): Iversen, L.F., Kastrup, J.S., Bjorn, S.E., Rasmussen, P.B., Wiberg, F.C., Flodgaard, H.J., Larsen, I.K.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Work: 
  0.180 (DCC) 

Starting Model: experimental

Literature

Structure of HBP, a multifunctional protein with a serine proteinase fold.

Iversen, L.F., Kastrup, J.S., Bjorn, S.E., Rasmussen, P.B., Wiberg, F.C., Flodgaard, H.J., Larsen, I.K.

(1997) Nat Struct Biol 4: 265-268

• PubMed: 9095193 
• DOI: https://doi.org/10.1038/nsb0497-265
• Primary Citation of Related Structures:  
  1AE5


• PubMed Abstract: 
  

  The structure of human heparin binding protein reveals that the serine proteinase fold has been used as a scaffold for a multifunctional protein with antibacterial activity, monocyte and t-cell activating properties and endotoxin and heparin binding capacity.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 24.74 kDa 
• Atom Count: 1,778 
• Modelled Residue Count: 223 
• Deposited Residue Count: 225 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
HEPARIN BINDING PROTEIN	A	225	Homo sapiens	Mutation(s): 0
UniProt & NIH Common Fund Data Resources
Find proteins for P20160 (Homo sapiens) Explore P20160  Go to UniProtKB:  P20160
PHAROS:  P20160 GTEx:  ENSG00000172232
Glycosylation
Glycosylation Sites: 2		Go to GlyGen: P20160-1

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NAG	B [auth A], C [auth A]	2-acetamido-2-deoxy-beta-D-glucopyranose C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Work:  0.180 (DCC) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 39.19	α = 90
b = 66.12	β = 90
c = 101.36	γ = 90

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing
TNT	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 1998-03-11 
Deposition Author(s): Iversen, L.F., Kastrup, J.S., Bjorn, S.E., Rasmussen, P.B., Wiberg, F.C., Flodgaard, H.J., Larsen, I.K.

Revision History  

• Version 1.0: 1998-03-11
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Data collection, Derived calculations, Structure summary
• Version 1.4: 2023-08-02
  Changes: Database references, Refinement description, Structure summary
• Version 1.5: 2024-12-25
  Changes: Advisory, Data collection, Derived calculations, Structure summary