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| Product | Description | |
|---|---|---|
| lanthionine | lanthionine. Uses: For analytical and research use. Group: Impurity standards. CAS No. 922-55-4. Molecular Formula: C6H12N2O4S. Mole Weight: 208.23. Catalog: APB922554. |  |
| Lanthionine | Lanthionine is a non-proteinogenic natural amino acid, which is an essential component of peptidoglycan found in the cell wall of Fusobacterium species. Synonyms: L-Cysteine, S-[(2R)-2-amino-2-carboxyethyl]-; (2R,2'R)-3,3'-thiobis(2-aminopropanoic acid); L-Cysteine, S-(2-amino-2-carboxyethyl)-, (R)-; Alanine, 3,3'-thiodi-, L-; S-[(2R)-2-Amino-2-carboxyethyl]-L-cysteine; L-Alanine, 3,3'-thiobis-; NSC 83248; Sulfide, bis(2-amino-2-carboxyethyl), [R-(R*,R*)]-; L-Lanthionine. Grades: ≥95%. CAS No. 922-55-4. Molecular formula: C6H12N2O4S. Mole weight: 208.24. |  |
| Bacteriocin lactocin-S | Bacteriocin lactocin-S is an antimicrobial peptide produced by Lactobacillus sakei L45. It has antibacterial activity and inhibits the growth of selected species of the genera Lactobacillus, Pedicoccus, and Leuconostoc. It contains at least two lanthionines, which are probably formed between the serine in position 23 and the cysteine in position 28, and between the serine in position 32 and the cysteine in position 37. Synonyms: Ser-Thr-Pro-Val-Leu-Ala-Ser-Val-Ala-Val-Ser-Met-Glu-Leu-Leu-Pro-Thr-Ala-Ser-Val-Leu-Tyr-Ser-Asp-Val-Ala-Gly-Cys-Phe-Lys-Tyr-Ser-Ala-Lys-His-His-Cys; lasA; Lactocin S (Bacteriocin). Grades: >85%. CAS No. 125387-34-0. | |
| cysteine lyase | A pyridoxal-phosphate protein. Can use a second molecule of cysteine (producing lanthionine), or other alkyl thiols, as a replacing agent. Group: Enzymes. Synonyms: cysteine (sulfite) lyase; L-cysteine hydrogen-sulfide-lyase (adding sulfite). Enzyme Commission Number: EC 4.4.1.10. CAS No. 9079-86-1. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-5313; cysteine lyase; EC 4.4.1.10; 9079-86-1; cysteine (sulfite) lyase; L-cysteine hydrogen-sulfide-lyase (adding sulfite). Cat No: EXWM-5313. |  |
| Duramycin B | Duramycins B is a new lanthionine containing antibiotic, has been isolated from Streptoverticillium strain R2075. Duramycins B is a potent inhibitor of human phospholipase A2. It exhibits only a weak antibacterial activity against B.subtilis, and does not display antimicrobial activity against S.aureus, S.mitis, E.coli, K.pneumoniae, P.vulgaris and C.albicans. Grades: ≥98%. CAS No. 132246-31-2. Molecular formula: C86H127N25O25S3. Mole weight: 2007.27. | |
| Duramycin C | Duramycin C is a new lanthionine containing antibiotic, has been isolated from Streptomyces griseoluteus (R2107). Duramycin C is a potent inhibitor of human phospholipase A2. It exhibits only a weak antibacterial activity against B.subtilis, and does not display antimicrobial activity against S.aureus, S.mitis, E.coli, K.pneumoniae, P.vulgaris and C.albicans. Grades: ≥98%. CAS No. 132268-38-3. Molecular formula: C82H115N23O27S3. Mole weight: 1951.12. | |
| Epidermin | Epidermin is a type A lantibiotic that is a tetracyclic 21-amino-acid peptide which contains meso-lanthionine, 3-methyllanthionine, and S-(2-aminovinyl)-D-cysteine. It is obtained from Staphylococcus epidermidis Tue 3298 and exhibits antibiotic activity against many Gram-positive bacteria. It has a role as a metabolite and an antibacterial agent. Synonyms: Staphylococcin 1580. CAS No. 99165-17-0. Molecular formula: C98H141N25O23S4. Mole weight: 2165.58. | |
| Nisin | nisin from streptococcus lactis is a polycyclic antibacterial peptide produced by the bacterium Lactococcus lactis that is used as a food preservative. It has 34 amino acid residues, including the uncommon amino acids lanthionine (Lan), methyllanthionine (MeLan), didehydroalanine (Dha), and didehydroaminobutyric acid (Dhb). These unusual amino acids are introduced by posttranslational modification of the precursor peptide. In these reactions a ribosomally synthesized 57-mer is converted to the final peptide. The unsaturated amino acids originate from serine and threonine, and the enzyme-catalysed addition of cysteine residues to the didehydro amino acids result in the multiple (5) thioether bridges.Subtilin and epidermin are related to nisin from streptococcus lactis. All are members of a class of molecules known as lantibiotics.In the food industry, nisin from streptococcus lactis is obtained from the culturing of L. lactis on natural substrates, such as milk or dextrose, and it is not chemically synthesized.It was originally isolated in the late 1930s, and produced since the 1950s as Nisaplin from naturally occurring sources by Aplin and Barrett in laboratories in Beaminster in Dorset, and approved as an additive for food use in the USA in the late 1960s, although the Beaminster factory now is owned by DuPont. Group: Heterocyclic organic compound. Alternative Names: Lactic acid streptococcus. CAS No. 1414-45-5. Molecular formula: |  |
| Nisin | Nisin is a polycyclic antibacterial peptide produced by the bacterium Lactococcus lactis that is used as a food preservative. It has 34 amino acid residues, including the uncommon amino acids lanthionine (Lan), methyllanthionine (MeLan), didehydroalanine (Dha), and didehydroaminobutyric acid (Dhb). These unusual amino acids are introduced by posttranslational modification of the precursor peptide. In these reactions a ribosomally synthesized 57-mer is converted to the final peptide. The unsaturated amino acids originate from serine and threonine, and the enzyme-catalysed addition of cysteine residues to the didehydro amino acids result in the multiple (5) thioether bridges. Synonyms: nisin (E 234). CAS No. 1414-45-5. Product ID: CDF4-0256. Molecular formula: C143H230N42O37S7. Mole weight: 3354.07. Category: Food preservative. Product Keywords: Food Preservatives; CDF4-0256; Nisin; 1414-45-5; nisin (E 234). Chemical Name: Nisin. Grade: Food grade. Source and Preparation: Nisin is a bacteriocin produced by a group of Gram-positive bacteria that belongs to Lactococcus and Streptococcus species. Nisin is classified as a Type A (I) lantibiotic that is synthesized from mRNA and the translated peptide contains several unusual amino acids due to post-translational modifications. Applications: Nisin is used in processed cheese, meats, beverages, etc. during production to extend shelf life by suppressing Gram-positive spoilage and patÂ… |  |
| Paenicidin A | Paenicidin A is an antimicrobial peptide found in Paenibacillus polymyxa NRRL B-30509, and has antimicrobial activity. It is a highly cyclized lantibiotic, containing three lanthionines (between residues 3-7, 8-11, 19-24) and three methyllanthionine rings (between residues 16-20, 23-28, 30-36), three of which are interlocking. Synonyms: paeA. Grades: >98%. | |
| Variacin | Variacin is a lanthionine-containing bacteriocin isolated from Kocuria varians. Synonyms: Gly-Ser-Gly-Val-Ile-Pro-Thr-Ile-Ser-His-Glu-Cys-His-Met-Asn-Ser-Phe-Gln-Phe-Val-Phe-Thr-Cys-Cys-Ser. | |
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