首页 » pHIPX4 BioVector® 表达质粒载体(多形汉逊酵母表达质粒) / BioVector® pHIPX4 Expression Vector

pHIPX4 BioVector® 表达质粒载体(多形汉逊酵母表达质粒) / BioVector® pHIPX4 Expression Vector

  • 价  格:¥59960
  • 货  号:BioVector® pHIPX4
  • 产  地:北京
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BioVector® pHIPX4 表达质粒载体(多形汉逊酵母表达质粒) / BioVector® pHIPX4 Expression Vector (Hansenula polymorpha Expression Vector)

一、 背景与来源说明 / Background & Origin

BioVector® pHIPX4 是一种专用于多形汉逊酵母(Hansenula polymorpha,现分类名为 Ogataea polymorpha)重组蛋白高效表达的游离型/整合型酵母表达载体(Yeast Expression Vector)。

多形汉逊酵母作为甲醇营养型酵母(Methylotrophic Yeast),具有生长速度快、耐高温(可在 37–45 摄氏度下生长)、培养成本低及能够进行复杂的真核后翻译修饰(如糖基化、二硫键形成)等优势。BioVector® pHIPX4 载体通常基于强诱导型或强强效表达启动子(如甲醇氧化酶启动子 PMOXPAOX / PFMD),常带有 LEU2URA3 等营养缺陷型选择标记以及大肠杆菌复制起始位点(ori)和氨苄青霉素抗性基因(AmpR),用于大肠杆菌克隆扩增与多形汉逊酵母的基因表达。

二、 质粒载体生物学特征 / Vector Characteristics

  • 载体类型 / Vector Type:酵母表达载体(Yeast Expression Vector / Shuttling Vector)

  • 表达宿主 / Expression Host:多形汉逊酵母(Hansenula polymorpha / Ogataea polymorpha

  • 克隆宿主 / Cloning Host:大肠杆菌(E. coli,如 BioVector® DH5$\alpha$BioVector® TOP10

  • 启动子 / Promoter:强诱导型/强表达启动子(如 PMOXPFMD,受甲醇诱导或甘油/甲醇调控)

  • 筛选标记 / Selection Markers

    • 酵母筛选标记LEU2URA3(互补营养缺陷型宿主)

    • 原核筛选抗性:Ampicillin(氨苄青霉素,100 μg/mL

  • 主要应用 / Key Applications:重组疫苗(如 HPV L1 蛋白、乙肝表面抗原 HBsAg)、工业酶制剂及药用重组蛋白在多形汉逊酵母中的高密度发酵表达

三、 培养条件与操作指南 / Handling & Protocols

1. 大肠杆菌克隆与扩增 / E. coli Cloning & Propagation

  • 培养基 / MediumBioVector® LB BrothBioVector® LB Agar

  • 抗性浓度 / Antibiotics:100 μg/mL Ampicillin

  • 培养条件 / Incubation:37 摄氏度,振荡培养(220–250 rpm)

2. 酵母转化与发酵表达 / Yeast Transformation & Expression

  1. 载体线性化(可选,用于基因整合):使用限制性内切酶对 BioVector® pHIPX4 进行单切线性化,以提高基因整合至多形汉逊酵母基因组的效率。

  2. 酵母电转化/化学转化:制备多形汉逊酵母感受态细胞,利用电穿孔(Electroporation)或 PEG/LiAc 法转入线性化或环状质粒。

  3. 筛选与表达诱导

    • 将转化混合物涂布于 BioVector® MD(Minimal Dextrose)SD-Leu / SD-Ura 缺陷培养基 平板上筛选阳性克隆。

    • 采用甘油或甲醇进行碳源调控与诱导表达(添加 0.5%–1% 甲醇诱导强启动子表达)。

四、 技术指标简表 / Technical Data Summary

参数 / Parameter描述 / Specification
产品名称 / Product NameBioVector® pHIPX4 表达质粒载体 / BioVector® pHIPX4 Expression Vector
生物安全等级 / BSLBSL-1
载体大小 / Vector Size约 7.0–8.0 kb
原核抗性 / Bacterial ResistanceAmpicillin (氨苄青霉素)
酵母标记 / Yeast MarkerLEU2 / URA3 营养缺陷型标记
启动子 / Promoter甲醇氧化酶启动子 () 或同类强启动子
主要应用 / Primary Uses多形汉逊酵母重组蛋白表达、疫苗与工业酶高密度发酵

BioVector® pHIPX4 Expression Vector (Hansenula polymorpha Expression Vector)

1. Background and Origin

BioVector® pHIPX4 is an expression plasmid designed for recombinant protein production in the methylotrophic yeast Hansenula polymorpha (also classified as Ogataea polymorpha).

H. polymorpha is a widely used eukaryotic expression system offering key advantages such as rapid growth, thermotolerance (up to 37–45 degrees Celsius), low-cost high-density fermentation, and complex post-translational modifications. The BioVector® pHIPX4 vector incorporates a strong inducible or constitutive promoter (such as the methanol oxidase promoter PMOX), a yeast auxotrophic selection marker (LEU2 or URA3), an E. coli origin of replication (ori), and an ampicillin resistance marker (AmpR) for propagation in bacterial hosts.

2. Vector Characteristics

  • Vector Type: Yeast Expression / Shuttle Vector

  • Expression Host: Hansenula polymorpha / Ogataea polymorpha

  • Cloning Host: E. coli (e.g., BioVector® DH5$\alpha$ or BioVector® TOP10)

  • Promoter: PMOX (Methanol Oxidase Promoter) or equivalent inducible promoter

  • Selection Markers:

    • Yeast Marker: LEU2 or URA3 (for complementing auxotrophic strains)

    • Bacterial Marker: Ampicillin (100 μg/mL)

  • Primary Applications: High-yield production of recombinant vaccines (e.g., HPV L1 virus-like particles, HBsAg), industrial enzymes, and biopharmaceuticals via H. polymorpha fermentation

3. Handling Protocols

E. coli Propagation

  • Growth Medium: BioVector® LB Broth / BioVector® LB Agar

  • Antibiotics: Ampicillin (100 μg/mL)

  • Incubation: 37 degrees Celsius, shaking at 220–250 rpm

Yeast Transformation & Expression

  1. Linearization: Digest BioVector® pHIPX4 with a unique restriction enzyme to facilitate genomic integration into H. polymorpha.

  2. Transformation: Transform electrocompetent or PEG/LiAc-treated H. polymorpha cells.

  3. Selection & Induction: Plate on BioVector® SD-Leu / SD-Ura Minimal Medium. Induce protein expression by replacing glucose/glycerol with 0.5–1% methanol.

4. Technical Data Summary

ParameterSpecification
Product NameBioVector® pHIPX4 表达质粒载体 / BioVector® pHIPX4 Expression Vector
Biosafety LevelBSL-1
Vector Size~7.0–8.0 kb
Bacterial ResistanceAmpicillin (100 )
Yeast MarkerLEU2 / URA3 Auxotrophic Marker
Promoter Promoter
Primary UsesRecombinant protein expression in Hansenula polymorpha


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