General Information
-
DRAMP ID
- DRAMP00201
-
Peptide Name
- Amythiamicin A/B (Bacteriocin)
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Source
- Amycolatopsis sp. (strain MI481-42F4 / FERM P-12739)
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Family
- Belongs to the thiocillin family
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Gene
- Not found
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Sequence
- SCNCVCGVCCSCSP
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Sequence Length
- 14
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UniProt Entry
- P0C912
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Protein Existence
- Protein level
Activity Information
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Biological Activity
- Antimicrobial, Antibacterial, Anti-Gram+
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Target Organism
-
- Gram-positive bacteria: Staphylococcus aureus MS9610 (MIC=0.2 µg/ml), Methicillin-resistant S. aureus (MIC=0.2 µg/ml), Staphylococcus aureus FDA209P (MIC=0.1 µg/ml), Micrococcus luteus FDA16 (MIC=0.1 µg/ml), M. luteus IFO3333 (MIC=0.78 µg/ml), M. luteus PCI1001 (MIC=0.2 µg/ml), Bacillus anthracis (MIC=0.1 µg/ml), B. subtilis NRRL B-558 (MIC=0.2 µg/ml), B. subtilis PCI219 (MIC=0.2 µg/ml), B. cereus ATCC 10702 (MIC=0.1 µg/ml).
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Hemolytic Activity
-
- No hemolysis information or data found in the reference(s) presented in this entry
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Cytotoxicity
-
- Not included yet
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Binding Target
- Not found
Structure Information
-
Linear/Cyclic
- Not included yet
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N-terminal Modification
- Not included yet
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C-terminal Modification
- Not included yet
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Nonterminal Modifications and Unusual Amino Acids
- Not included yet
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Stereochemistry
- Not included yet
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Structure
- Not found
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Structure Description
- Not found
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Helical Wheel Diagram
-
PDB ID
- None
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Predicted Structure
- There is no predicted structure for DRAMP00201.
Physicochemical Information
-
Formula
- C48H81N15O19S6
Absent Amino Acids
- ADEFHIKLMQRTWY
Common Amino Acids
- C
Mass
- 1364.62
PI
- 5.23
Basic Residues
- 0
Acidic Residues
- 0
Hydrophobic Residues
- 2
Net Charge
- 0
-
Boman Index
- -0.14
Hydrophobicity
- 1.107
Aliphatic Index
- 41.43
Half Life
-
- Mammalian:1.9 hour
- Yeast:>20 hour
- E.coli:>10 hour
Extinction Coefficient Cystines
- 375
Absorbance 280nm
- 28.85
Polar Residues
- 11
DRAMP00201
Comments Information
Function
- Has bacteriocidal activity against Gram-positive bacteria
PTM
- ①Maturation of thiazole and oxazole containing antibiotics involves the enzymic condensation of a Cys, Ser or Thr with the alpha-carbonyl of the preceding amino acid to form a thioether or ether bond, then dehydration to form a double bond with the alpha-amino nitrogen. Thiazoline or oxazoline rings are dehydrogenated to form thiazole or oxazole rings. ②Maturation of pyridinyl containing antibiotics involves the cross-linking of a Ser and a Cys-Ser pair usually separated by 7 or 8 residues along the peptide chain. The Ser residues are dehydrated to didehydroalanines, then bonded between their beta carbons. The alpha carbonyl of the Cys condenses with the alpha carbon of the first Ser to form a pyridinyl ring. The ring may be multiply dehydrogenated to form a pyridine ring with loss of the amino nitrogen of the first Ser. ③The diketopiperazine ester in form C may be formed by cyclization and transesterification of the C-terminal dipeptide.
Literature Information
- ·Literature 1
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Title
- Novel antibiotics, amythiamicins. I. Taxonomy, fermentation, isolation, physico-chemical properties, and antimicrobial activity.
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Pubmed ID
- 8040071
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Reference
- J Antibiot (Tokyo). 1994 Jun;47(6):668-674.
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Author
- Shimanaka K, Kinoshita N, Iinuma H, Hamada M, Takeuchi T.