Replication - Human Resource - Lecture Slides, Slides of Human Resource Management

In these Lecture Slides of HRM, the Lecturer has discussed the following fundamental concepts of Human resource Management : Replication, Modes, Leading, Replication Fork, Strand Displacement, Adenoviruses, Parvoviruses, Poxviruses, Papillomaviruses, Leading Strand Replication

Typology: Slides

2012/2013

Uploaded on 07/26/2013

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Two Basic Modes of Replication
21
Replication Fork Strand displacement (primer)
Papillomaviruses
Polyomaviruses
Herpesviruses
Retroviral
Proviriuses
Adenoviruses (protein)
Parvoviruses (DNA hairpin)
Poxviruses (hairpin
Primer
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3โ€™ 3โ€™
5โ€™
5โ€™
3โ€™
Leading
Lagging
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Two Basic Modes of Replication

21 Replication Fork Strand displacement (primer) Papillomaviruses Polyomaviruses Herpesviruses Retroviral Proviriuses Adenoviruses (protein) Parvoviruses (DNA hairpin) Poxviruses (hairpin Primer 5โ€™ 3โ€™ 3โ€™ 5โ€™ 5โ€™ 3โ€™ Leading Lagging

Polyomavirus Replication Forks

Initiation from a single ori, requires expression of Tag

Replicate as covalently closed circles

Leading strand replication occurs via extension from an RNA primer

Lagging strand replication is delayed until the replication fork has moved

  • also uses RNA primers
  • creates discontinuities

How to fill in the gaps? 22

T antigen

a multifunctional virus-specified early protein 24

Whatโ€™s the Ori Core Sequence?

Between pE and pL AT rich LT binding sites, SP1 sites Nucleosome free - Why? Late promoter 25

Leading vs. Lagging

Leading strand DNA synthesis is continuous

Lagging strand DNA synthesis is discontinuous

Direction of synthesis off of either template strand is the same 27

Initiation of DNA Synthesis

28 Two LT hexamers bind LT Binding A/T site II EP 1 ATP + LT

Initiation of DNA Synthesis

30 Binding of Rpa occurs ATP ADP + Pi 3 RPA