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Safety Information

B2809

Sigma-Aldrich

Bactenecin

≥95% (HPLC)

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Empirical Formula (Hill Notation):
C63H118N24O13S2
Molecular Weight:
1483.89
MDL number:
MFCD00236810
UNSPSC Code:
51101500
PubChem Substance ID:
329773208
NACRES:
NA.85

Quality Level

200

Assay

≥95% (HPLC)

form

powder

solubility

1 mg/mL (in 1% TFA in H20)

antibiotic activity spectrum

Gram-negative bacteria

Mode of action

cell membrane | interferes

storage temp.

−20°C

SMILES string

CC[C@H](C)[C@@H]1NC(=O)[C@H](CCCNC(N)=N)NC(=O)[C@H](CSSC[C@H](NC(=O)[C@@H](NC(=O)[C@H](CCCNC(N)=N)NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC1=O)C(C)C)C(C)C)[C@@H](C)CC)C(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(O)=O)NC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CCCNC(N)=N

InChI

1S/C63H118N24O13S2/c1-13-34(11)46-57(97)78-38(21-17-25-75-62(69)70)49(89)83-43(31(5)6)54(94)82-42(53(93)79-39(59(99)100)22-18-26-76-63(71)72)29-102-101-28-41(81-51(91)40(27-30(3)4)80-48(88)36(64)19-15-23-73-60(65)66)52(92)77-37(20-16-24-74-61(67)68)50(90)86-47(35(12)14-2)58(98)85-44(32(7)8)55(95)84-45(33(9)10)56(96)87-46/h30-47H,13-29,64H2,1-12H3,(H,77,92)(H,78,97)(H,79,93)(H,80,88)(H,81,91)(H,82,94)(H,83,89)(H,84,95)(H,85,98)(H,86,90)(H,87,96)(H,99,100)(H4,65,66,73)(H4,67,68,74)(H4,69,70,75)(H4,71,72,76)/t34-,35-,36-,37-,38-,39-,40-,41-,42-,43-,44-,45-,46-,47-/m0/s1

InChI key

RHISNKCGUDDGEG-CJMCYECYSA-N

Amino Acid Sequence

Arg-Leu-Cys-Arg-Ile-Val-Val-Ile-Arg-Val-Cys-Arg-OH (Disulfide bridge: 3-11)

General description

Chemical structure: peptide

Application

Bactenecin′s activity has been studied as a cyclic molecule as well as in a linear form. It was used to study the functional role of Trk1p in the mechanism of other antifungal peptides. It has been used to study chemokine and cytokine production, alteration of gene expression in host cells, and inhibition of proinflammatory responses of host cells to bacterial components.

Biochem/physiol Actions

Bactenecin is a 12-amino acid cationic antimicrobial peptide from bovine neutrophils. It strongly binds to LPS and perturbs the structure, fluidity and permeability of the inner membrane. This results in the leakage of cytosol and subsequent death of the bacteria.

Other Notes

Peptide antibiotic, originally isolated from bovine neutrophil granules
Keep container tightly closed in a dry and well-ventilated place.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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B Gallis et al.
Biotechnology therapeutics, 1(4), 335-346 (1989-01-01)
Bactenecin is an antimicrobial peptide isolated from bovine neutrophils. Bactenecin was synthesized by solid-phase peptide synthesis and renatured to a fully disulfide bonded form. The peptide inhibits the growth of Escherichia coli and Staphylococcus aureus at the same concentration reported
Dawn M E Bowdish et al.
Antimicrobial agents and chemotherapy, 49(5), 1727-1732 (2005-04-28)
Recent studies have demonstrated that in addition to their antimicrobial activity, cationic host defense peptides, like the human cathelicidin LL-37, perform many activities relating to innate immunity, including the induction or modulation of chemokine and cytokine production, alteration of gene
M Wu et al.
The Journal of biological chemistry, 274(1), 29-35 (1998-12-29)
Bactenecin, a 12-amino acid cationic antimicrobial peptide from bovine neutrophils, has two cysteine residues, which form one disulfide bond, making it a cyclic molecule. To study the importance of the disulfide bond, a linear derivative Bac2S was made and the
D Romeo et al.
The Journal of biological chemistry, 263(20), 9573-9575 (1988-07-15)
Cytoplasmic granules of neutrophils store a variety of cationic polypeptides, which exert in vitro a potent antibacterial action and are potentially involved in host defense mechanisms. From an acid extract of bovine neutrophil granules we have purified over 2,000-fold a
Slavena Vylkova et al.
Antimicrobial agents and chemotherapy, 50(1), 324-331 (2005-12-27)
Salivary histatin 5 (Hst 5) kills the fungal pathogen Candida albicans via a multistep process which includes binding to Ssa1/2 proteins on the cell surface and requires the TRK1 potassium transporter. Hst 5-induced membrane permeability to propidium iodide (PI) was
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