1a7s

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ATOMIC RESOLUTION STRUCTURE OF HBPATOMIC RESOLUTION STRUCTURE OF HBP

Structural highlights

1a7s 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 1.12Å
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

Crystals of human heparin binding protein (HBP) diffract to 1.1 A when flash-frozen at 120 K. The atomic resolution structure has been refined anisotropically using SHELXL96. The final model of HBP consists of 221 amino-acid residues of 225 possible, three glycosylation units, one chloride ion, 15 precipitant ethanol molecules and 323 water molecules. The structure is refined to a final crystallographic R factor of 15.9% and Rfree(5%) of 18.9% using all data. A putative protein kinase C activation site has been identified, involving residues 113-120. The structure is compared to the previously determined 2.3 A resolution structure of HBP.

Atomic resolution structure of human HBP/CAP37/azurocidin.,Karlsen S, Iversen LF, Larsen IK, Flodgaard HJ, Kastrup JS Acta Crystallogr D Biol Crystallogr. 1998 Jul 1;54(Pt 4):598-609. PMID:9761855[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. Karlsen S, Iversen LF, Larsen IK, Flodgaard HJ, Kastrup JS. Atomic resolution structure of human HBP/CAP37/azurocidin. Acta Crystallogr D Biol Crystallogr. 1998 Jul 1;54(Pt 4):598-609. PMID:9761855

1a7s, resolution 1.12Å

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