1ae5

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HUMAN HEPARIN BINDING PROTEINHUMAN HEPARIN BINDING PROTEIN

Structural highlights

1ae5 is a 1 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.3Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

CAP7_HUMAN This is a neutrophil granule-derived antibacterial and monocyte- and fibroblast-specific chemotactic glycoprotein. Binds heparin. The cytotoxic action is limited to many species of Gram-negative bacteria; this specificity may be explained by a strong affinity of the very basic N-terminal half for the negatively charged lipopolysaccharides that are unique to the Gram-negative bacterial outer envelope. It may play a role in mediating recruitment of monocytes in the second wave of inflammation. Has antibacterial activity against the Gram-nagative bacterium P.aeruginosa, this activity is inhibited by LPS from P.aeruginosa. Acting alone, it does not have antimicrobial activity against the Gram-negative bacteria A.actinomycetemcomitans ATCC 29532, A.actinomycetemcomitans NCTC 9709, A.actinomycetemcomitans FDC-Y4, H.aphrophilus ATCC 13252, E.corrodens ATCC 23834, C.sputigena ATCC 33123, Capnocytophaga sp ATCC 33124, Capnocytophaga sp ATCC 27872 or E.coli ML-35. Has antibacterial activity against C.sputigena ATCC 33123 when acting synergistically with either elastase or cathepsin G.[1] [2]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

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.

Structure of HBP, a multifunctional protein with a serine proteinase fold.,Iversen LF, Kastrup JS, Bjorn SE, Rasmussen PB, Wiberg FC, Flodgaard HJ, Larsen IK Nat Struct Biol. 1997 Apr;4(4):265-8. PMID:9095193[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

  1. Wasiluk KR, Skubitz KM, Gray BH. Comparison of granule proteins from human polymorphonuclear leukocytes which are bactericidal toward Pseudomonas aeruginosa. Infect Immun. 1991 Nov;59(11):4193-200. PMID:1937776
  2. Miyasaki KT, Bodeau AL. Human neutrophil azurocidin synergizes with leukocyte elastase and cathepsin G in the killing of Capnocytophaga sputigena. Infect Immun. 1992 Nov;60(11):4973-5. PMID:1399008
  3. Iversen LF, Kastrup JS, Bjorn SE, Rasmussen PB, Wiberg FC, Flodgaard HJ, Larsen IK. Structure of HBP, a multifunctional protein with a serine proteinase fold. Nat Struct Biol. 1997 Apr;4(4):265-8. PMID:9095193

1ae5, resolution 2.30Å

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