タイプ: Thiopeptide / クラス: 抗生剤 / 分子量: 1805.985 Da / 分子数: 1 / 由来タイプ: 天然 詳細: Thiostrepton is a hetrocyclic thiopeptide belonging to the thiocillin family, consisting of four thiazole, one thiozoline and one piperideine rings. A modified quinoline linked to main-chain ...詳細: Thiostrepton is a hetrocyclic thiopeptide belonging to the thiocillin family, consisting of four thiazole, one thiozoline and one piperideine rings. A modified quinoline linked to main-chain residue 1 and side-chain of residue 12. Post translational maturation of thiazole and oxazole containing antibiotics involves the enzymic condensation of a Cys or Ser 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 ring are dehydrogenated to form thiazole or oxazole rings. the pyridinyl 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 alpha carbon of the first Ser to form a pyridinyl ring. The ring may be mutiply dehydrogenated to form a pyridine ring with loss of the amino nitrogen of the first Ser. The amidation of Ser-17 probably does not occur by the same mechanism, oxidative cleavage of glycine, as in eukaryotes. 由来: (天然) Streptomyces azureus (バクテリア) / 参照: UniProt: P0C8P8, THIOSTREPTON
構成要素の詳細
THIOSTREPTON IS A MEMBER OF A SULPHUR-RICH HETEROCYCLIC PEPTIDES CLASS. ALL SHARE A MACROCYLIC ...THIOSTREPTON IS A MEMBER OF A SULPHUR-RICH HETEROCYCLIC PEPTIDES CLASS. ALL SHARE A MACROCYLIC CORE, CONSISTING OF A NITROGEN CONTAINING, SIX-MEMBERED RING CENTRAL TO DEHYDROAMINO ACIDS AND A SUBSET OF FIVE MEMBER RING STRUCTURES INCLUDING THIAZOLES, THIAZOLINES AND OXAZOLES. HERE, THIOSTREPTON IS REPRESENTED BY THE SEQUENCE (SEQRES)
配列の詳細
A MODIFIED QUINOLINE LINKED TO THE MAIN-CHAIN OF RESIDUE 1 AND THE SIDE-CHAIN OF RESIDUE 12.
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実験情報
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実験
実験
手法: 溶液NMR / 詳細: Thiostrepton wt (in 5:1 chloroform-d ethanol-d5)
NMR実験
Conditions-ID
Experiment-ID
Solution-ID
タイプ
1
1
1
2D 1H-15N HSQC
1
2
1
2D 1H-13C HSQC
1
3
1
2D 1H-13C TOCSY-HSQC
1
4
1
2D 1H-13C HMBC
1
5
1
2D 1H-1H NOESY
1
6
1
2D 1H-1H ROESY
1
7
1
2D 1H-1H TOCSY
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試料調製
詳細
内容: 10 mM thiostrepton, chloroform-d/ethanol-d5 5:1 / 溶媒系: chloroform-d/ethanol-d5 5:1
試料
濃度: 10 mM / 構成要素: thiostrepton
試料状態
圧: ambient / 温度: 298 K
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NMR測定
NMRスペクトロメーター
タイプ: Bruker DRX / 製造業者: Bruker / モデル: DRX / 磁場強度: 600 MHz