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)
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実験情報
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実験
実験
手法: 溶液NMR
NMR実験
タイプ: IPAP(1H, 15N)HSQC
NMR実験の詳細
Text: THE RDC DATA WAS USED TO DETERMINE THE RELATIVE DOMAIN ORIENTATION OF THE L11 PROTEIN
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試料調製
詳細
タイプ: solution 内容: 0.3 MM [U-13C, U-15N U-2H] RIBOSOMAL PROTEIN L11, 0.3 MM RIBOSOMAL RNA, 0.3 MM THIOSTREPTON ANTIBIOTIC, 20 MM POTASSIUM PHOSPHATE, 200 MM POTASSIUM CHLORIDE, 95% H2O/5% D2O Label: sample_1 / 溶媒系: 95% H2O/5% D2O
試料
濃度 (mg/ml)
構成要素
Isotopic labeling
Solution-ID
0.3mM
RibosomalProteinL11
[U-13C; U-15N; U-2H]
1
0.3mM
RibosomalRNA
naturalabundance
1
0.3mM
ThiostreptonAntibiotic
naturalabundance
1
20mM
potassiumphosphate
naturalabundance
1
200mM
potassiumchloride
naturalabundance
1
試料状態
イオン強度: 220 / pH: 6.1 / 圧: 1 atm / 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 AVANCE DRX / 製造業者: Bruker / モデル: AVANCE DRX / 磁場強度: 600 MHz
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解析
NMR software
名称
バージョン
開発者
分類
HADDOCK
2.0_DEVEL
DOMINGUEZETAL.
精密化
TopSpin
1.3
BrukerBiospin
collection
XwinNMR
3.5
BrukerBiospin
collection
NMRPipe
2.5
Delaglioetal.
解析
Sparky
3.112
Goddardetal.
データ解析
CNS
1.1
Brungeretal.
構造決定
精密化
手法: DOCKING / ソフトェア番号: 1 詳細: FOR CHAIN A, THE INITIAL COORDINATES ARE OPTIMIZED USING RDCS. LEFT SEMI-FLEXIBLE DURING DOCKING. FOR CHAIN B, INITIAL T. MARITIMA COORDINATES ARE FROM PDB ENTRY 1MMS. LEFT SEMI-FLEXIBLE ...詳細: FOR CHAIN A, THE INITIAL COORDINATES ARE OPTIMIZED USING RDCS. LEFT SEMI-FLEXIBLE DURING DOCKING. FOR CHAIN B, INITIAL T. MARITIMA COORDINATES ARE FROM PDB ENTRY 1MMS. LEFT SEMI-FLEXIBLE DURING DOCKING. FOR CHAIN C, THE INITIAL COORDINATES ARE FROM PDB ENTRY 1E9W. LEFT FLEXIBLE ACIDS AND NUCLEIC ACIDS WHICH DO NOT COMPLY WELL WITH THE ANTIBIOTIC IN THE CASE HERE.
代表構造
選択基準: lowest energy
NMRアンサンブル
コンフォーマー選択の基準: TOP-RANKED ENSEMBLE, ACCORDING TO THE AVERAGE INTERACTION ENERGY AND BURIED SURFACE AREA 計算したコンフォーマーの数: 200 / 登録したコンフォーマーの数: 10