Target type: biologicalprocess
The chemical reactions and pathways resulting in the formation of an antibacterial peptide. [GOC:add, ISBN:0781735149, PMID:11807545, PMID:15638771]
Antibacterial peptide biosynthesis is a complex process involving the production of peptides with antimicrobial activity. This process is essential for host defense against bacterial infections, and it is often employed by various organisms, including humans, plants, and animals. The biosynthesis of antibacterial peptides typically involves several steps, including gene expression, peptide synthesis, and post-translational modifications.
**1. Gene Expression:**
The production of antibacterial peptides begins with the expression of genes encoding these peptides. These genes are often located in clusters and are regulated by various environmental stimuli, such as bacterial infection or tissue damage. The gene expression process involves the transcription of DNA into messenger RNA (mRNA), which serves as a template for protein synthesis.
**2. Peptide Synthesis:**
Once the mRNA encoding the antibacterial peptide is produced, it is translated into a polypeptide chain on ribosomes. The polypeptide chain is then folded into a specific three-dimensional structure, which is crucial for the peptide's antimicrobial activity.
**3. Post-Translational Modifications:**
After translation, the antibacterial peptide can undergo several post-translational modifications, which can further enhance its activity. These modifications include:
* **Cleavage:** Many antibacterial peptides are initially synthesized as pre-propeptides and require cleavage by proteases to produce the mature active peptide.
* **Disulfide bond formation:** The formation of disulfide bonds between cysteine residues in the peptide can contribute to its stability and antimicrobial activity.
* **Glycosylation:** The addition of sugar molecules to the peptide can affect its solubility, stability, and antimicrobial activity.
* **Phosphorylation:** The attachment of phosphate groups to the peptide can modulate its activity and interactions with target molecules.
**4. Secretion and Transport:**
Once the antibacterial peptide is synthesized and modified, it needs to be secreted from the cell and transported to the site of infection. This process can involve various mechanisms, such as exocytosis or diffusion.
**5. Antimicrobial Activity:**
Antibacterial peptides exert their antimicrobial activity by disrupting bacterial cell membranes or interfering with essential bacterial processes. The mechanisms of action can include:
* **Membrane disruption:** Many antibacterial peptides are cationic and amphipathic, allowing them to interact with and disrupt bacterial cell membranes.
* **Inhibition of bacterial enzymes:** Some antibacterial peptides inhibit the activity of essential bacterial enzymes, such as DNA gyrase or protein synthesis.
* **Interference with bacterial cell wall synthesis:** Some antibacterial peptides target the synthesis of bacterial cell walls, leading to cell lysis.
In summary, the biosynthesis of antibacterial peptides is a multi-step process involving gene expression, peptide synthesis, post-translational modifications, secretion, and transport. These peptides play a crucial role in host defense against bacterial infections and have potential applications in the development of novel antibiotics.'
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Protein | Definition | Taxonomy |
---|---|---|
Galectin-4 | A galectin-4 that is encoded in the genome of human. [PRO:DNx, UniProtKB:P56470] | Homo sapiens (human) |
Matrilysin | A matrilysin that is encoded in the genome of human. [PRO:DNx, UniProtKB:P09237] | Homo sapiens (human) |
Compound | Definition | Classes | Roles |
---|---|---|---|
2,3-dihydroxybenzoic acid | 2,3-dihydroxybenzoic acid : A dihydroxybenzoic acid that is benzoic acid substituted by hydroxy groups at positions 2 and 3. It occurs naturally in Phyllanthus acidus and in the aquatic fern Salvinia molesta. 2,3-dihydroxybenzoic acid: RN given refers to parent cpd dihydroxybenzoic acid : Any member of the class of hydroxybenzoic acids carrying two phenolic hydroxy groups on the benzene ring and its derivatives. | dihydroxybenzoic acid | human xenobiotic metabolite; plant metabolite |
protocatechuic acid | 3,4-dihydroxybenzoic acid : A dihydroxybenzoic acid in which the hydroxy groups are located at positions 3 and 4. protocatechuic acid: RN given refers to parent cpd; structure | catechols; dihydroxybenzoic acid | antineoplastic agent; EC 1.1.1.25 (shikimate dehydrogenase) inhibitor; EC 1.14.11.2 (procollagen-proline dioxygenase) inhibitor; human xenobiotic metabolite; plant metabolite |
gallic acid | gallate : A trihydroxybenzoate that is the conjugate base of gallic acid. | trihydroxybenzoic acid | antineoplastic agent; antioxidant; apoptosis inducer; astringent; cyclooxygenase 2 inhibitor; EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor; geroprotector; human xenobiotic metabolite; plant metabolite |
beta-resorcylic acid | beta-resorcylic acid: RN given refers to parent cpd; structure | ||
2,5-dihydroxybenzoic acid | 2,5-dihydroxybenzoic acid : A dihydroxybenzoic acid having the two hydroxy groups at the 2- and 5-positions. 2,5-dihydroxybenzoic acid: RN given refers to parent cpd; a oxidative product of saligenin | dihydroxybenzoic acid | EC 1.13.11.33 (arachidonate 15-lipoxygenase) inhibitor; fungal metabolite; human metabolite; MALDI matrix material; mouse metabolite |
veratric acid | 3,4-dimethoxybenzoic acid : A member of the class of benzoic acids that is benzoic acid substituted by methoxy groups at positions 2 and 3. veratric acid: RN given refers to parent cpd; structure | benzoic acids | allergen; plant metabolite |
methyl gallate | methyl 3,4,5-trihydroxybenzoate : A gallate ester obtained by the formal condensation of gallic acid with methanol. It exhibits anti-oxidant, anti-tumor, anti-microbial and anti-inflammatory properties. methyl gallate: has both immunosuppressive and phytogenic antineoplastic activities; isolated from Acer saccharinum | gallate ester | anti-inflammatory agent; antioxidant; plant metabolite |
3,4,5-trimethoxybenzoic acid | 3,4,5-trimethoxybenzoic acid : A benzoic acid derivative carrying 3-, 4- and 5-methoxy substituents. 3,4,5-trimethoxybenzoic acid: RN given refers to parent cpd; structure | benzoic acids; methoxybenzenes | human urinary metabolite; human xenobiotic metabolite; plant metabolite |
syringic acid | syringic acid : A dimethoxybenzene that is 3,5-dimethyl ether derivative of gallic acid. syringic acid: RN given refers to parent cpd; structure in third source | benzoic acids; dimethoxybenzene; phenols | plant metabolite |
epigallocatechin gallate | (-)-epigallocatechin 3-gallate : A gallate ester obtained by the formal condensation of gallic acid with the (3R)-hydroxy group of (-)-epigallocatechin. epigallocatechin gallate: a steroid 5alpha-reductase inhibitor and antimutagen in green tea (Camellia sinensis) | flavans; gallate ester; polyphenol | antineoplastic agent; antioxidant; apoptosis inducer; geroprotector; Hsp90 inhibitor; neuroprotective agent; plant metabolite |
methyl beta-galactoside | methyl beta-D-galactoside : A beta-D-galactopyranoside having a methyl substituent at the anomeric position. methyl beta-galactoside: RN given refers to (beta-D)-isomer methyl galactoside : A methyl glycoside in which the H of the OH group on C-1 of galactose is replaced by a methyl group. | beta-D-galactoside; methyl D-galactoside; monosaccharide derivative | |
marimastat | marimastat : A secondary carboxamide resulting from the foraml condensation of the carboxy group of (2R)-2-[(1S)-1-hydroxy-2-(hydroxyamino)-2-oxoethyl]-4-methylpentanoic acid with the alpha-amino group of N,3-dimethyl-L-valinamide. marimastat: a matrix metalloproteinase inhibitor active in patients with advanced carcinoma of the pancreas, prostate, or ovary | hydroxamic acid; secondary carboxamide | antineoplastic agent; matrix metalloproteinase inhibitor |
thiodigalactoside | thiodigalactoside: RN given refers to beta-D-galactopyranoside (D-Gal)-isomer | ||
n-(2-isobutyl-3-(n'-hydroxycarbonylamido)propanoyl)-o-methyltyrosinemethylamide | N-(2-isobutyl-3-(N'-hydroxycarbonylamido)propanoyl)-O-methyltyrosinemethylamide: RN given refers to the (S-(R*,S*))-isomer | ||
ilomastat | CS 610: matrix metalloproteinase inhibitor; structure in first source ilomastat : An N-acyl-amino acid obtained by formal condensation of the carboxy group of (2R)-2-[2-(hydroxyamino)-2-oxoethyl]-4-methylpentanoic acid with the amino group of N-methyl-L-tryptophanamide. A cell permeable broad-spectrum matrix metalloproteinase (MMP) inhibitor | hydroxamic acid; L-tryptophan derivative; N-acyl-amino acid | anti-inflammatory agent; antibacterial agent; antineoplastic agent; EC 3.4.24.24 (gelatinase A) inhibitor; neuroprotective agent |
bb3497 | BB3497: peptide deformylase inhibitor; structure in first source | ||
3-((benzyl)(methylaminocarbonyl)methylaminocarbonyl)n-hydroxy-5-methylhexanamide | 3-((benzyl)(methylaminocarbonyl)methylaminocarbonyl)N-hydroxy-5-methylhexanamide: structure in first source | ||
prinomastat | prinomastat : A hydroxamic acid that is (3S)-N-hydroxy-2,2-dimethylthiomorpholine-3-carboxamide in which the hydrogen attached to the thiomorpholine nitrogen has been replaced by a [4-(pyridin-4-yloxy)phenyl]sulfonyl group. It is a selective inhibitor with of matrix metalloproteinases (MMPs) 2, 3, 9, 13, and 14. prinomastat: a diazepine-based hydroxamic acid inhibitor; matrix metalloproteinase (MMP) inhibitor; angiogenesis inhibitor; | aromatic ether; hydroxamic acid; pyridines; sulfonamide; thiomorpholines | antineoplastic agent; EC 3.4.24.35 (gelatinase B) inhibitor; matrix metalloproteinase inhibitor |
isoliquiritigenin | chalcones | antineoplastic agent; biological pigment; EC 1.14.18.1 (tyrosinase) inhibitor; GABA modulator; geroprotector; metabolite; NMDA receptor antagonist | |
galactal | galactal: RN given refers to cpd with unspecified isomeric designation; structure | anhydrohexose; glycal | |
rs-130830 | RS-130830: orally-active broad-spectrum matrix metalloproteinase inhibitor | ||
tmi-1 | |||
batimastat | batimastat : A secondary carboxamide resulting from the formal condensation of the carboxy group of (2S,3R)-5-methyl-3-{[(2S)-1-(methylamino)-1-oxo-3-phenylpropan-2-yl]carbamoyl}-2-[(thiophen-2-ylsulfanyl)methyl]hexanoic acid with the amino group of hydroxylamine. It a broad-spectrum matrix metalloprotease inhibitor. batimastat: structure given in first source; a synthetic matrix metalloproteinase inhibitor | hydroxamic acid; L-phenylalanine derivative; organic sulfide; secondary carboxamide; thiophenes; triamide | angiogenesis inhibitor; antineoplastic agent; matrix metalloproteinase inhibitor |
ik 682 | IK 682: inhibits TNF-alpha converting enzyme; structure in first source | hydroxamic acid; pyrrolidin-2-ones; quinolines | |
epigallocatechin-3-o-(3''-o-methyl)-gallate | catechin | ||
ro 32-3555 | Ro 32-3555: structure given in first source | ||
abt-770 | ABT-770: structure in first source | ||
sb 3ct compound | SB 3CT compound: a matrix metalloproteinase-2 inhibitor; structure in first source | aromatic ether | |
pd 166793 | |||
sc 78080 | |||
arp-100 | |||
s 3304 | S 3304: structure in first source | ||
N(2)-([biphenyl]-4-ylsulfonyl)-N-hydroxy-N(2)-isopropoxy-D-valinamide | N(2)-([biphenyl]-4-ylsulfonyl)-N-hydroxy-N(2)-isopropoxy-D-valinamide : A hydroxamic acid that is N-hydroxy-D-valinamide in which the alpha-amino group has been substituted by isopropoxy and [biphenyl]-4-ylsulfonyl groups. A selective matrix metalloproteinase-2 (MMP-2) inhibitor, it is one of the most potent inducers of autophagy. Its physiological roles include angiogenesis, cancer metastasis, embryogenesis, tissue remodeling in development, and wound healing. | D-valine derivative; hydroxamic acid | antineoplastic agent; autophagy inducer; EC 3.4.24.24 (gelatinase A) inhibitor; melanin synthesis inhibitor |
bms-566394 | BMS-566394: structure in first source | ||
incb3619 | INCB3619: ADAM inhibitor; structure in first source | ||
grassystatin a | grassystatin A: isolated from a cyanobacterium, identified as Lyngbya cf.; structure in first source | ||
minocycline | minocycline : A tetracycline analogue having a dimethylamino group at position 7 and lacking the methyl and hydroxy groups at position 5. Minocycline: A TETRACYCLINE analog, having a 7-dimethylamino and lacking the 5 methyl and hydroxyl groups, which is effective against tetracycline-resistant STAPHYLOCOCCUS infections. | ||
guanosine diphosphate | Guanosine Diphosphate: A guanine nucleotide containing two phosphate groups esterified to the sugar moiety. | guanosine 5'-phosphate; purine ribonucleoside 5'-diphosphate | Escherichia coli metabolite; mouse metabolite; uncoupling protein inhibitor |