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books أنواع الرايبوسومات

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أنواع الرايبوسومات (Info)


  1. ريبوسومات الخلايا البدائية: حيث تكون أصغر حجما من الريبوسومات في الخلايا حقيقية النواة . وهي تتكون من وحدات(70S (S=Svedberg-Unit. الوحدة الصغرى 30S والوحدة الكبرى 50S. وحدة القياس S غير قابلة للجمع، لأنها تعبر عن قوة الطرد المركزي لهذه الجسيمات. هذه الريبوسومات توجد في البكتيريا وكذلك في الميتوكوندريا داخل الخلية.ونظرا لهذا الاِختلاف تكون الريبوسومات البكتيرية هدفا للكثير من الأدوية المضادة للبكتيريا من أمثلتها:Tetrazykline وAminoglykoside على 30S ,وMacrolide, Chloramphenicol على 50S.
  2. ريبوسومات الخلايا الحقيقية: وتتكون من وحدات 80S بحيث أن الوحدة الكبرى تبلغ 60S والوحدة الصغرى 40S.وتمثل وحداتا الريبوسوم مجتمعتين ما يقارب 4,2 وحدة كتل ذرية. وتحتوي على ما يقارب 85 بروتينا و 3 rRNA. تحتوي هذه البروتينات على الكثير من الأحماض الأمينية ذات الخاصية القاعدية مثل الأرجنين والليسين لأنها موجبة الشحنة مما يمكنها الاِلتحام بالرنا الراسل بطريقة أفضل.
Source: wikipedia.org
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Types Of Monotheism

Types Of Monotheism

 
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Types Of Fasting

Types Of Fasting

 
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Types Of Shirk

Types Of Shirk

 
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Types Of Infidelity

Types Of Infidelity

 
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Types Of Libraries

Types Of Libraries
Types Of Marble

Types Of Marble

 
Types Of Cement

Types Of Cement

 
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23 Types Of Worship That We Overlook

23 Types Of Worship That We Overlook

 
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Spring Lights In The Types Of Budaiya V.6

Spring Lights In The Types Of Budaiya V.6
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Spring Lights In The Types Of Budaiya V.2

Spring Lights In The Types Of Budaiya V.2
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Public Domain
Spring Lights In The Types Of Budaiya V.5

Spring Lights In The Types Of Budaiya V.5
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Spring Lights In The Types Of Budaiya V.1

Spring Lights In The Types Of Budaiya V.1
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Spring Lights In The Types Of Budaiya V.3

Spring Lights In The Types Of Budaiya V.3
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Spring Lights In The Types Of Budaiya Vol.4

Spring Lights In The Types Of Budaiya Vol.4
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Spring Lights In The Types Of Budaiya Vol.1

Spring Lights In The Types Of Budaiya Vol.1
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Spring Lights In The Types Of Budaiya Vol.2

Spring Lights In The Types Of Budaiya Vol.2
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Spring Lights In The Types Of Budaiya Vol.3

Spring Lights In The Types Of Budaiya Vol.3
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Spring Lights In The Types Of Budaiya V.5

Spring Lights In The Types Of Budaiya V.5
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Spring Lights In The Types Of Budaiya V.4

Spring Lights In The Types Of Budaiya V.4
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Spring Lights In The Types Of Budaiya V.7

Spring Lights In The Types Of Budaiya V.7
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Spring Lights In The Types Of Budaiya Vol.5

Spring Lights In The Types Of Budaiya Vol.5
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Spring Lights In The Types Of Budaiya V.6

Spring Lights In The Types Of Budaiya V.6
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Spring Lights In The Types Of Budaiya V.1

Spring Lights In The Types Of Budaiya V.1
Public Domain
Spring Lights In The Types Of Budaiya Vol.7

Spring Lights In The Types Of Budaiya Vol.7
Public Domain
Spring Lights In The Types Of Budaiya V.2

Spring Lights In The Types Of Budaiya V.2
Public Domain
Spring Lights In The Types Of Budaiya Vol.6

Spring Lights In The Types Of Budaiya Vol.6
Public Domain
Spring Lights In The Types Of Budaiya V.7

Spring Lights In The Types Of Budaiya V.7
Public Domain
Spring Lights In The Types Of Budaiya V.3

Spring Lights In The Types Of Budaiya V.3
Public Domain
Spring Lights In The Types Of Budaiya V.4

Spring Lights In The Types Of Budaiya V.4
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Types Of Bricks

Types Of Bricks

 
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Types Of Floors

Types Of Floors

 
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Types Of Learning Difficulties

Types Of Learning Difficulties

 
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Types Of Memory In A Computer

Types Of Memory In A Computer
Three Types Of Cable

Three Types Of Cable

 
Types Of Rocks

Types Of Rocks

 
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Copyright reserved
Types Of Managers

Types Of Managers

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Authors of books

Mustafa Mahmoud The Words Of God Almighty Ibrahim AlFiqi Muhammad Bin Saleh AlUthaymeen Ibn Qayyim Al-Jawziyya Ahmed Khaled Tawfiq Fahad Amer AlAhmadi Muhammad Metwally AlShaarawi Ali Bin Jaber AlFifi Dale Carnegie Islam Gamal Sayed Qutb Muhammad AlGhazali Omar AlHourani Agatha Christie Muhammad Bin Ismail AlBukhari Abbas AlAkkad Abu Hamid AlGhazali Najib Mahfouz Fyodor Dostoevsky Jalal AlDin AlSuyuti Bin Taymiyyah Ismail Bin Omar Bin Katheer AlQurashi Aldamashqiu Ibrahim Al-Sukran Mustafa AlAdawi More of Authors of books