CBS 7435,NRRL Y-11430 BioVector? Komagataella phaffii畢赤嵌合酵母菌株
- 價 格:¥59950
- 貨 號:BioVector?CBS 7435,NRRL Y-11430
- 產(chǎn) 地:北京
- BioVector NTCC典型培養(yǎng)物保藏中心
- 聯(lián)系人:Dr.Xu, Biovector NTCC Inc.
電話:400-800-2947 工作微信:1843439339 (QQ同號)
手機:18901268599
地址:北京
- 已注冊
BioVector?
學(xué)名:Komagataella phaffii (畢赤嵌合酵母)
其他編號:NRRL Y-11430, 76273, Wegner 21-1, CECT 11047
生物安全等級:BSL-1(一級,安全)
主要用途:重組蛋白表達系統(tǒng)開發(fā)、工業(yè)發(fā)酵、食品級原料生產(chǎn)(如通過 FDA GRAS 認證 的蛋白)。
獲取渠道:可通過BioVector NTCC菌種保藏中心 獲取。
基因組大小:約 9.35–9.4 Mbp。
編碼基因數(shù):包含約 5,000–5,200 個蛋白質(zhì)編碼基因。
關(guān)鍵突變特征(使其優(yōu)于普通野生型酵母):
HOC1 基因移碼突變:CBS 7435 存在一個單堿基缺失,導(dǎo)致 HOC1(甘露糖轉(zhuǎn)移酶)蛋白截短。這使得其細胞壁比其他畢赤酵母更薄,極大地提高了重組蛋白的分泌效率。
RSF2 突變:包含一個過早終止密碼子 (W748*),使其調(diào)控功能與自然界菌株有所差異。
數(shù)據(jù)庫資源:其全基因組序列可在 NCBI 數(shù)據(jù)庫 查詢,蛋白質(zhì)組數(shù)據(jù)詳見 UniProt (UP000006853)。
甲醇代謝途徑 (MUT):作為甲基營養(yǎng)型酵母,CBS 7435 擁有強大的甲醇誘導(dǎo)啟動子(如 AOX1),可用于高密度發(fā)酵和蛋白高效表達。
食品級安全性:該菌株被廣泛應(yīng)用于食品科技領(lǐng)域,例如生產(chǎn)替代肉類中的大豆血紅蛋白。
遺傳背景:它是目前大多數(shù)畢赤酵母工程菌株的遺傳基礎(chǔ),所有通過其衍生的菌株通常具有高度的一致性。


培養(yǎng)條件
培養(yǎng)基:YPD 培養(yǎng)基 (1% 酵母提取物, 2% 蛋白胨, 2% 葡萄糖)。
培養(yǎng)溫度:通常為 28°C - 30°C(超過 32°C 會顯著降低生長速度并導(dǎo)致細胞死亡)。
BioVector? CBS 7435 (also known as NRRL Y-11430) is a widely used industrial reference strain of the methylotrophic yeast Komagataella phaffii (formerly Pichia pastoris). It serves as the parental progenitor for many common recombinant protein expression systems, including the popular auxotrophic strain GS115.
Scientific Name:Komagataella phaffii.
Synonyms/Designations: NRRL Y-11430, 76273, Wegner 21-1, CECT 11047.
Biosafety Level: BSL-1.
Applications: Food production research, pharmaceutical ingredient manufacturing, and high-density fermentation for recombinant protein secretion.
Availability: Accessible via BioVector NTCC Inc.
Genome Size: Approximately 9.35–9.4 Mbp with a GC content of about 41.4%.
Coding Sequences: Contains roughly 5,000–5,200 protein-coding genes.
Key Mutations:
HOC1 Frameshift: A single base-pair deletion (poly-A stretch) causes a C-terminal truncation in the HOC1 (mannosyltransferase) gene. This mutation results in a weaker cell wall, which significantly increases yields of secreted heterologous proteins compared to natural isolates.
RSF2 Stop Codon: A SNP introduces a stop codon (W748*), leading to a truncated protein compared to other K. phaffii strains.
Genome Resources: The full proteome (Identifier: UP000006853) and annotated genome are available on UniProt and NCBI.
Methylotrophic Pathway: Utilizes the Methanol Utilization (MUT) pathway, which allows for highly controlled protein expression using the AOX1 promoter.
Safe History: Recognized for "history of safe use" in producing food ingredients like soy leghemoglobin and
您正在向 biovector.net 發(fā)送關(guān)于產(chǎn)品 CBS 7435,NRRL Y-11430 BioVector? Komagataella phaffii畢赤嵌合酵母菌株 的詢問
- 公告/新聞




