Name: high-throughput screening for protein-based inheritance in s. cerevisiae
Uploaded: 2017-08-08T14:00:00
Description: Watch this Scientific Journal Video about High-throughput Screening for Protein-based Inheritance in S. cerevisiae at JoVE.com

우리가 그들의 도움으로 그들의 사려깊은 의견에 대 한 검토자가이 문서에서 사용 되는 분석 실험 개발에 대 한 Sohini Chakrabortee, 산드라 존스, 데이비드 가르시아, Bhupinder Bhullar, 아멜리아 장, 리처드 그녀와 Susan Lindquist 감사 합니다.

1. Initial Overexpression
<ol>
	<li>Transform the yeast cells (in this case, BY4741 MAT a haploids) previously grown in YPD liquid (10 g of yeast extract, 20 g of peptone, and 20 g of glucose per 1 L) with the desired candidate constructs from the FLEXGene ORFeome library (yeast ORFs under the control of a galactose-inducible promoter in the URA3-marked centromericplasmid backbone, pBY01129).</li>
	<li>Use autoclaved toothpicks to pick four separate colonies from these...

<ol>
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첫 번째 효 모 prions는 그들의 특이 한 고기 및 상속의 복잡 한 패턴에 의해 확인 되었다. 이러한 prions의 특성 다음 알고리즘 및 계산 도구 추가 프리온 단백질에 대 한 화면을 사용 했다. 여기서 설명 하는 방법을 반대로 실험 이며 지속적인 변화는 안정 상태 인코딩된 단백질 구조에서 만들 과도 overexpression에 의존. 그러나, "시드" 어떤 주어진된 단백질에 대 한 overexpression에 의해 프리온 어셈블리?...

생물 학적 시스템 자주 단백질 풍부에 일시적인 동요를 경험 한다. 이러한 표현 형 유기 체 또는 미래 세대의 형성에 지속적인 영향을 미칠 여부 불분명 남아 있습니다. 이 생물학의 가장 잘 알려진 인스턴스 단백질, prions, 게놈 수정 없이 상속 특성의 출현을 드라이브의 드문 클래스를 포함 합니다. 대신, 이러한 프로teinaceous 그리고 에fectious 입자 고기 자기 영속적인 변화 단백질 구조1,2를 통해 전송합니다. 상속의이 유형은 치명적인 신경 퇴행 성 질병의 특이 한 상속 패턴의 원인으로 발견 되었다. 그러나, 유기 체 균 류에서 포유류3,4,5,6,7,8,,910 에 이르기까지 연구 이후 프리온 같은 요소 적응 값을 부여 수 있습니다 밝혀 있다. 그럼에도 불구 하 고, prions는 희귀 생물 이상한 하지만 매혹적인로 간주 되었습니다.
이 통용 지혜는 단백질 기반 상속의 특성 오래 예의 작은 세트에 의해 제한 되어 있기 때문에 부분에서 개최 됩니다. 최근 체계적인 심사 노력 식별 하 여 여러 가지 새로운 진실 fide prions11 명의 거의 단백질 도메인12 연료 프리온 같은 구조적 변환 용량이 사진을 크게 확대 했습니다. 그러나, 이러한 방식을 일반적으로 강한 아미노산 시퀀스 편견에 초점을 맞춘, 때문에 발견 되었습니다 prions 창립 효 모 prions [PSI+]13,14,15, [URE3] 및 [RNQ+]11,16의 생 화 확 적인 속성을 공유 합니다. 이러한 포함: 1) 모듈형 도메인을 아스파라긴 (N)과 글루타민 (Q), 2) 어셈블리는 녹말 체 [프리온+] 나 란17,,1819로 긴 고분자 뻗어 풍부 하 고 3) disaggregase 어머니 딸13,,2021에서 충실 한 전파에 대 한 Hsp104 함수에 대 한 의존도 완료. 실제로, 많은 진실 fide prions, 포함 한 [르+], [한-s], 그리고 원래 프리온 PrP (Sc), 이러한 엄격한 조건에서 놓친 것 이다. 아마도 더 중요 한 것은, 그들은 것입니다 수 없습니다 단백질 기반 상속22의 새로운 메커니즘을 캡처. 따라서, 이러한 현상의 진정한 생물학적 폭 자연 이전 생각 보다 훨씬 더 일반적인 수 있습니다.
이 문제를 조사, 높은 처리량, 프로테옴 전체 전략 고용 되었다. PrPSc, [르+]를 포함 하 여 모든 prions의 특징 [한-s]은 인과 단백질의 과도 overexpression 강하게 프리온 수집15,23,,2425,26의 비율을 증가. 우리는 뚜렷이 개별 단백질의 overexpression를 유도 하 여 안정적인 단백질 기반, 후 상태를 시작할 수 경우 체계적으로, 전체에 걸쳐 ORFeome, 효 모에이 기능을 이용을 했다. 잘 알려진 그 단백질 overexpression 고기27를 변경할 수 있습니다. 그러나 그들의 임시 과잉 생산 초기 overexpression 후 세대의 많은 수백에 대 한 상속을 표현 형에서 변화 하기 때문에, 프리온 단백질 평소 되지 않습니다. 우리는 이전 단백질 기반 유전 요소, heritably phenotypic 풍경 게놈28변경 하지 않고 다시 배선 수 있는 단백질의 수십을 식별 하기 위해 특이 한 상속 패턴 뿐만 아니라이 기능을 이용 했다. 비록 일부 확인 된 단백질 이전로 알려져 있었다 prions, 대부분, 새로운 형태의 단백질 기반 상속을 밝히기 위해이 접근의 힘을 강조 했다.

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			<td>Cat#M8054-100G</td>
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			<td>Sigma</td>
			<td>Cat#F5013-50MG</td>
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			<td height="21" style="height:21px;">BY4741 MATa (his3&#916;1 leu2&#916;0 LYS2 met15&#916;0 ura3&#916;0)</td>
			<td>Winston et al., 1995; Brachmann et al., 1998</td>
			<td>N/A</td>
			<td>Yeast strain</td>
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			<td>Winston et al., 1995; Brachmann et al., 1998</td>
			<td>N/A</td>
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			<td height="21" style="height:21px;">Hsp70 (K69M)&#160;</td>
			<td>Jarosz et al., 2014b</td>
			<td>N/A</td>
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			<td height="21" style="height:21px;">FLEXGene library</td>
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			<td height="21" style="height:21px;">Dextrose (glucose)</td>
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			<td height="21" style="height:21px;">CSM</td>
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			<td height="21" style="height:21px;">CSM-LYS</td>
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			<td height="21" style="height:21px;">yeast extract</td>
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			<td>Media component</td>
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			<td>Media component</td>
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			<td height="21" style="height:21px;">Uracil</td>
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			<td>Media component</td>
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			<td height="21" style="height:21px;">Leucine</td>
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			<td>Biomek FX</td>
			<td>Equipment</td>
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</table>

high-throughput screening for protein-based inheritance in s. cerevisiae

미래 세대에 액세스할 수 있는 생물 학적 정보의 인코딩 변화 DNA 시퀀스를 통해 일반적으로 달성 된다. 수명이 긴 상속 단백질 구조 (보다는 오히려 순서)으로 인코딩된는 오래 패러다임 변화 하지만 드문으로 간주 되었습니다. 최고의 특징이 같은 후 성적인 요소는 prions, 새로운 고기의 상속 징후를 구동할 수 자가 조립 동작을가지고 있습니다. 많은 archetypal prions는 눈에 띄는 N/Q-풍부한 시퀀스 바이어스를 표시 하 고 녹말 체 접이식으로 조립. 이러한 비정상적인 기능 대부분 심사 노력 새로운 프리온 단백질 식별을 통보 했다. 그러나, 적어도 3 개의 알려진된 prions (를 포함 하 여 창립 프리온, PrPSc)이 생 화 확 적인 특성 항구 하지 않습니다. 우리는 따라서 대량 작업의 속성에 따라 단백질 기반 상속의 범위를 조사 하는 대체 방법 개발: 프리온 단백질의 과도 overexpression 증가 주파수는 그들은 자체 템플릿 구조 확보. 이 문서에서는 단백질 기반 상속을 유도 하는 효 모 ORFeome의 용량을 분석 하는 방법을 설명 합니다. 이 전략을 사용 하 여, 우리가 이전에 발견 하는 &gt; 1% 효 모 단백질의 수명이 긴, 안정, 그리고 유전자 변이 보다는 더 빈번 하 게 발생 생물학 특성의 출현을 연료 수. 이 방법은 전체 ORFeomes 또는 특정 유전자 네트워크 또는 환경 자극에 대 한 대상된 심사 패러다임으로 높은 처리량에 사용할 수 있습니다. 앞으로 유전 스크린 수많은 발달 및 신호 경로 정의 하는 것 처럼 이러한 기술을 생물학 과정에서 단백질 기반 상속의 영향을 조사 하는 방법을 제공 합니다.

Protein overexpression is known to dramatically alter cellular phenotypes27. Indeed, with an initial screening approach, hundreds of new phenotypes were reproducibly recovered from the overexpression of clones from the yeast ORFeome using just ten stressors. However, the assays described above allow for the assessment of whether cells retain any long-term stable phenotypes following this overexpression. One protein capable of encoding such a state is Psp1. Psp1 is ...

Watch this Scientific Journal Video about High-throughput Screening for Protein-based Inheritance in S. cerevisiae at JoVE.com

High-throughput Screening for Protein-based Inheritance in S. cerevisiae

이 프로토콜 기능 S. cerevisiae에 단백질 기반 상속에 대 한 화면을 높은 처리량 방법을 설명 합니다.

S. cerevisiae 에 단백질 기반 상속에 대 한 높은 처리량 검열

The encoding of biological information that is accessible to future generations is generally achieved via changes to the DNA sequence. Long-lived ...

Research

JoVE Journal

Biology

High-throughput Screening for Protein-based Inheritance in S. cerevisiae

Assay for Adhesion and Agar Invasion in S. cerevisiae

S. cerevisiae의의 접착 및 아가르 침략을위한 분석

Yeasts are found in natural biofilms, where many microorganisms colonize surfaces. In artificial environments, such as surfaces of man-made objects, ...

연구

생물학

A high-throughput method to globally study the organelle morphology in S. cerevisiae

세계 S. cerevisiae의에서 organelle 형태를 연구하기 위해 높은 처리량 방법

High-throughput methods to examine protein localization or organelle morphology is an effective tool for studying protein interactions and can help ...

Identification of protein complexes with quantitative proteomics in S. cerevisiae

S. cerevisiae의의 양적 proteomics와 단백질 단지의 식별

Lipids are the building blocks of cellular membranes that function as barriers and in compartmentalization of cellular processes, and recently, as ...

High-throughput Screening and Biosensing with Fluorescent C. elegans Strains

High-throughput Screening and Biosensing with Fluorescent C. elegans Strains

형광등과 높은 처리량 검사 및 Biosensing C. 엘레간스 레인스

High-throughput screening (HTS) is a powerful approach for identifying chemical modulators of biological processes.  However, many compounds identified in ...

High Throughput Screening of Fungal Endoglucanase Activity in Escherichia coli

High Throughput Screening of Fungal Endoglucanase Activity in Escherichia coli

에서 곰팡이 Endoglucanase 활동의 높은 처리량 검사 대장균</em

Cellulase enzymes (endoglucanases, cellobiohydrolases, and &beta;-glucosidases) hydrolyze cellulose into component sugars, which in turn can be converted ...

Flow Cytometry-based Purification of S. cerevisiae Zygotes

Flow Cytometry-based Purification of S. cerevisiae Zygotes

의 흐름 세포 계측법 기반 정화<em&gt; S. cerevisiae</em&gt; Zygotes

Zygotes are essential intermediates between haploid and diploid states in the life cycle of many organisms, including yeast (Figure 1) 1. S. cerevisiae ...

High-throughput Screening for Small-molecule Modulators of Inward Rectifier Potassium Channels

안쪽 정류기의 칼륨 채널의 소형 분자 변조기에 대한 높은 처리량 검사

Specific members of the inward rectifier potassium (Kir) channel family are postulated drug targets for a variety of disorders, including hypertension, ...

High-throughput Functional Screening using a Homemade Dual-glow Luciferase Assay

집에서 만든 듀얼 글로우 루시 페라 제 분석 실험을 사용하여 높은 처리량 기능 검사

We present a rapid and inexpensive high-throughput screening protocol to identify transcriptional regulators of alpha-synuclein, a gene associated with ...

High Throughput Quantitative Expression Screening and Purification Applied to Recombinant Disulfide-rich Venom Proteins Produced in E. coli

High Throughput Quantitative Expression Screening and Purification Applied to Recombinant Disulfide-rich Venom Proteins Produced in E. coli

에서 생산 재조합 이황화 풍부한 독 단백질에 적용되는 높은 처리량 정량 식 검사 및 정화<em&gt; E. 대장균</em

Escherichia coli (E. coli) is the most widely used expression system for the production of recombinant proteins for structural and functional studies. ...

High-throughput Screening for Chemical Modulators of Post-transcriptionally Regulated Genes

후 전사적으로 규제 유전자의 화학 변조기에 대한 높은 처리량 검사

Both transcriptional and post-transcriptional regulation have a profound impact on genes expression. However, commonly adopted cell-based screening assays ...