Title: Advanced Workshops on Vector NTI
1 Advanced Workshops on Vector NTI Part II
Molecule Construction and Design Yi-Bu
Chen, Ph.D. Ansuman Chattopadhyay, Ph.D. Health
Sciences Library System Molecular Biology and
Genetics Information Service University of
Pittsburgh
2Outline of the Workshop
- Overview of molecule types and creation methods
- Major steps and tools for molecule construction
and design - Construct a new DNA molecule
- Design a new DNA molecule
- Using simulated gel electrophoresis to analyze
cloned products
3Fundamental Molecule Types in Vector NTI
- Basic Molecules (DNA/RNA/Protein)
- Not built from component fragments
- Sequences and features are either entered by
users or imported from other databases. - Constructed DNA/RNA Molecules
- Built from one or more fragments (parent
molecules, linkers, adapters, etc.) - Automatically receive the Feature map and
sequences from the parent molecules. - Constructed Protein Molecules
- Translated from a coding sequence of a DNA
molecule - Does not receive the Feature map from its
parent DNA molecule
4Methods of Creating New Molecule in Vector NTI
- Basic Molecules (DNA/RNA/Protein)
- Importing molecules or sequences
- Manually creating new molecules
- Constructed DNA/RNA Molecules
- Splicing exons of an intron-exon join feature
of another molecules - Constructing from compatible component
fragments from other molecules - Designing from components of a user-defined
fragments list - Back-translating from protein molecules from
components of a user-defined fragments list - Constructed Protein Molecules
- Splicing exons of a gene
- Translating from DNA molecules
5Molecule Construction vs. Molecule Design
- Recipient and donor fragments are defined by
users. - Restriction sites are defined by users.
- When required, the methods of terminus
modification are defined by users.
- Recipient and donor fragments are defined by
users. - Restriction sites are analyzed and generated by
Vector NTI. - Methods of terminus modification are determined
by Vector NTI.
6Major Tools for Molecular Construction and
Molecular Design
- Fragment Wizard
- Construct fragments (define positions and
termini) - Design recipient/donor fragments (define
termini) - Add defined fragments to the Goal Molecule
Definition List - The Goal Molecule Definition List
- Contains the list of fragments defined and
added by the user using the Fragment Wizard - Serves as the starting point of molecular
construction and design - Designs from components of a user-defined
fragments list - The Construct/Design Molecule Dialog Box
- Allows users to set the construction
parameters and design preferences - Allows users to enter information about the
new molecule
7Major Steps for Molecule Construction
- Use Fragment Wizard to define component
fragments. - Add defined fragments to the Goal Molecule List.
- Use the Construct Molecule Dialog Box to set
construction parameters, including necessary
terminus modifications. - Name, select data and describe the new molecule.
- Verify and edit the component fragments in the
Goal Molecule Definition List - Initiate molecule construction.
8 A Molecule Construction Example
- Task Clone a fragment from pBR322 into pUC19
-
- Donor fragment pBR322, 5EcoRI3AvaI
- Recipient fragment pUC19, 5SmaI3EcoRI
- Getting started
- 1. Open pBR322 and pUC19 in Vector NTI
-
- 2. Arrange the display window to display 2
molecules on the same screen - ? Select Menu gt Window gt Tile Vertical
9 A Molecule Construction ExampleStep 1
Describe component fragments in the Fragment
Wizard
- Define the recipient pUC fragment
(5SmaI3EcoRI) - 1. Activate the pUC Graphic Pane
- 2. Click Add Fragment to Goal List button to
open the Fragment Wizard - 3. 1st screen select Construct fragment gt click
Next - 4. 2nd screen Click on the SmaI site in the
graphic pane to set the 5 terminus. Click Next - 5. 3rd screen hold the SHIFT key and click on
the EcoRI site in the graphic pane to set the 3
terminus. Click Finish - 6. Check the description of the fragment in the
New Fragment message box. Click Cancel to go
back to the Fragment Wizard if there are errors,
otherwise, click Add to List to add the 1st
fragment to the Molecule Goal List. - B. Define the donor pBR322 fragment
(5EcoRI3AvaI) following the above steps
10 A Molecule Construction ExampleStep 2 Inspect
the Goal List
- From the tool bar, click the Open Goal List
button - Notice that the 1st fragment in the list is
always considered as the recipient molecule
the order of the fragments can be changed by
click the Up or Down buttons - If no errors, click the Run button in the Lists
screen
11 A Molecule Construction ExampleStep 3
Describing the new molecule
- In the Construct Molecule screen, enter name
Turorial1 - Click the Recipient's Start button to define the
start of the new molecule (can be set at any
other positions) - Click General Info button to enter more info in
the General Data dialog box (Description
Tutorial molecule1 Extra-Chromosome
Replication Bacteria Replicon Type plasmid
Keyword your last name) - Click Add and then OK button to return to the
Construct Molecule dialog box.
12 A Molecule Construction ExampleStep 4
Construct the new molecule/Initial attempt
- Click the Construct button, in the Insert
Molecule to Subset dialog box, enter Tutorial
as subset name, and then click OK button. - Vector NTI warns incompatible fragments (pUC
fragment blunt 5SmaI terminus cannot be matched
with the pBR322 cohesive 3AvaI terminus). - Click the OK button to acknowledge the messages
and return to the Construct Molecule dialog box gt
Click the Close button to return - You now need to modify the termini to make them
compatible for the ligation.
13 A Molecule Construction ExampleStep 4
Construct the new molecule/modify the terminus
- To make the 2 fragments compatible, you need to
modify the pBR322 cohesive 3 AvaI terminus into
a blunt one. - In the Lists screen, click to select the pBR322,
then click the Edit button. - In the Fragment of Molecule dialog box, click the
Right Terminus button. - In the Right Terminus dialog Box, select
Completely filled in in the Biochemical
Operations section then click OK.
14 A Molecule Construction ExampleStep 4
Construct the new molecule/complete the
construction
- After the terminus is modified, click the Run
button on the Lists dialog box to launch the
Construct Molecule dialog box. - Click the Construct button and select Tutorial as
the subset, then click the Overwrite button. - Close the emptied Lists dialog box and go to the
window that displays the newly constructed
Tutorial1 molecule. - Inspect the new molecule and information in the
Text Pane gt Component Fragments folder.
15 A Molecule Construction ExampleStep 5
Re-construct the new molecule
- With the Tutorial Molecule 1 open in the Vector
NTI, select Menu gt File gt Molecule Operations gt
Advanced DNA/RNA gt Construct to open the
Construct Molecule dialog box. Alternatively, in
the Vector NTI Explorer window gt select the
intended molecule gt right click the mouse gt
choose Re-construct from the short-cut menu. - Make any desired changes in the Construct
Molecule dialog box, and click the Construct
button to re-construct the molecule.
16Major Steps for Molecule Design
- 1. Define the goal molecules
- Use the Fragment Wizard to define recipient
and donor fragments - Place the fragments in the Goal Molecule
Definition List in proper order. - Inspect the Goal Molecule Definition List.
- Enter information for the new molecule in the
Design Molecule dialog box. - Set appropriate parameters and design preferences
in the Design Parameter dialog box. - Start the design process.
- Inspect the design plan under the Design
Description folder in the Text Pane. - If not satisfied, re-design the molecule by
changing the goal molecule description or using
different design parameters.
17 A Simple Molecule Design Example
- Task Clone a fragment from pBR322 into pUC19
- Donor fragment pBR322, the TC(R) signal
- Recipient fragment pUC19, 5 _at_ 500 bp, 3 _at_
250 bp - Getting started
- 1. Open pBR322 and pUC19 in Vector NTI
-
- 2. Arrange the display window to display 2
molecules on the same screen - ? Select Menu gt Window gt Tile Vertical
18 A Molecule Design ExampleStep 1 Define the
recipient and donor fragments
- Define the recipient pUC fragment
- 1. Activate the pUC Graphic Pane and click the
Add Fragment to Goal List button to open the
Fragment Wizard - 2. 1st screen select Design Recipient fragment
gt click Next - 3. 2nd screen for the 5 of the new fragment,
select Set to a position, and enter 500, click
Next - 4. 3rd screen enter 250 in the Set to a
Position box to define the 3 terminus, click
Finish then Add to List button. - Define the donor pBR322 fragment
- 1. Activate the pBR322 Graphic Pane and click
the Add Fragment to Goal List button to open the
Fragment Wizard - 2. 1st screen select Design Donor fragment gt
click Next - 3. 2nd screen Move the cursor to click/select
the TC(R) signal. - 4. Click Finish then Add to List button.
19 A Molecule Design ExampleStep 2 Inspect the
Goal List
- From the tool bar, click the Open Goal List
button - Notice the Design button is selected, confirming
the Design Mode. - Make sure the recipient (pUC fragment) is listed
first. - Notice that the exact positions of donor are not
defined yet (NODEF), but it must contain the
TC(R) signal. - If no errors, click the Run button in the Lists
screen
20 A Molecule Design ExampleStep 3 Describing
the new molecule
- In the Design Molecule screen, enter name
Tutorial2 - Click the Recipient's Start button to define the
start of the new molecule as the start of
recipient molecule. - Click General Info button to enter more info in
the General Data dialog box (Description
Tutorial molecule1 Extra-Chromosome
Replication Bacteria Replicon Type plasmid
Keyword your last name) - Click Add and then OK button to return to the
Design Molecule dialog box.
21 A Molecule Design ExampleStep 4 Prepare to
design the new molecule
- In the Design Molecule screen, click Design
button - Select the previously created Tutorial subset for
the new molecule, click OK to continue. - In the Design Parameters dialog box, you can
choose your restriction enzyme subsets, the
transformation systems you use, and other
parameters. - In this example, select Palindromes/Non-Ambiguous
REN subset, and leave other parameters at their
default value.
22 A Molecule Design ExampleStep 5 Configure
preferences for molecule design
- In the Design Parameter dialog box, click the
Preference button - Choose your preferred parameters to create new
molecules. - In this example deselect Ligation-BluntBlunt
option, so Vector NTI will ensure all fragments
have at least one cohesive end. - Leave other parameters at their default setting.
- The Advanced Preferences allows you to change the
way Vector NTI evaluates possible design paths. - Click OK to accept all Preferences and return to
the Design Parameters.
23 A Molecule Design ExampleStep 6 Design and
inspect the new molecule
- After the design preferences are set, click the
Start Design button. - Close the emptied Lists dialog box and go to the
window that displays the newly designed Tutorial2
molecule. - Inspect the new molecule and info in the Text
Pane.
24 A Molecule Design ExampleStep 7 Inspect and
print the design plan
- Verify the restriction enzymes used in the design
process. Add them to the display by using the
Molecular Display Setup dialog box Restriction
Map Setup. - Inspect Design Plan In the Text Pane, open the
Design Description Folder and subfolder Step 1.
Highlights of the bench instruction for creating
the new molecule - No biochemical operations needed to modify the
termini as they are compatible. - The selected cloning option gives the required
orientation of the cloned pBR322 fragment in the
pUC19 recipient - One of the recipients restriction sites is
lost after ligation, this gives a mean for
pre-selecting properly ligated molecule before
transformation. - The new restriction site in the recombinant
molecule that does not exist in the recipient
allows one to use restriction analysis of the
clones. - Vector NTI also recommends oligos or PCR
primers for clone analysis. - Vector NTI also lists restriction sites that
can be used to isolate the closed fragments. - 3. Print the Design Description Open the
Design Description folder Step1 subfolder,
click the Print Active Pane button on the
tool bar.
25 A Molecule Design ExampleStep 8 Re-design the
new molecule
- With the Tutorial Molecule 2 open in the Vector
NTI, select Menu gt File gt Molecule Operations gt
Advanced DNA/RNA gt Design to open the Design
Molecule dialog box, click Yes to overwrite the
original task and start the new design.
Alternatively, in the Vector NTI Explorer window
gt select the intended molecule gt right click the
mouse gt choose Re-design from the short-cut menu. - Make any desired changes in the Design Molecule
dialog box, and click the Design button to
re-design the molecule.
26 Advanced Molecule Design I Complicated
Recipient
- Task Insert SV40s LARGE_T gene from SV40 to
the 2nd ApaLI site of BPV1. - Donor fragment SV40 LARGE_T gene (no ApaLI
site) - Recipient fragment BPV1 at 2nd ApaLI site 5
ApaLI site must be retained - ligation no blunt-blunt
- Getting started
- 1. Open SV40 and BPV1 in Vector NTI
-
- 2. Arrange the display window to display the 2
molecules on the same screen - ? Select Menu gt Window gt Tile Vertical
27 Advanced Molecule Design with Complicated
RecipientStep 1 Define the recipient and donor
Fragments
A. Define the recipient BPV1 fragment 1.
Activate the BPV1 Graphic Pane and click Add
Fragment to Goal List button to open the Fragment
Wizard 2. 1st screen select Design Recipient
fragment gt click Next 3. 2nd screen for the 5
of the new fragment, click on the label of ApaLI
site 2 (7631) in the Graphic Pane, click
Next 4. 3rd screen select Save Site, and then
click Next 5. 4th screen to define the 3,
press SHIFT Click on the same ApaLI site,
Click Finish then Add to List button. B. Define
the donor SV40 fragment 1. Activate the SV40
Graphic Pane and click the Add Fragment to Goal
List button to open the Fragment Wizard 2. 1st
screen select Design Donor fragment gt click
Next 3. 2nd screen Move the cursor to
click/select the LARGE_T signal. 4. Click
Finish then Add to List button.
28 Advanced Molecule Design with Complicated
RecipientStep 2 Inspect the Goal Molecule
Definition List
- From the tool bar, click the Open Goal List
button - Make sure the recipient (BPV1 fragment) is listed
first. - Click on the SV40 fragment, and then click the
Edit button to open the Fragment Editor dialog
box - Check the Inverted box to change the direction of
the donor fragment to match the recipients
direction and then click the OK button. (when
the Inverted box is not checked, the system will
design it either way).
29 Advanced Molecule Design with Complicated
Recipient Step 3 Describing the new molecule
- Click the Run button, in the Design Molecule
screen, enter name Tutorial3 - Click the Recipient's Start button to define the
start of the new molecule as the start of
recipient molecule. - Click the General Info button to enter more info
in the General Data dialog box (Description
Tutorial molecule3 Extra-Chromosome
Replication Bacteria Replicon Type plasmid
Keyword your last name) - Click the Add and then OK button to return to the
Design Molecule dialog box.
30 Advanced Molecule Design with Complicated
Recipient Step 4 Prepare to design and set the
preferences
- In the Design Molecule dialog box, click the
Design button - Select the previously created Tutorial subset for
the new molecule, click OK to continue. - In the Design Parameters dialog box, leave all
settings at their default values. - Click the Preferences button, notice the
blunt-blunt ligation box remains turned off. - Leave everything at their default settings gt
click OK to accept the Design Preference gt return
to the Design Parameters dialog box.
31 Advanced Molecule Design with Complicated
Recipient Step 5 Design and inspect the new
molecule
- After the Design Preferences are set, click the
Start Design button. - Close the emptied Lists dialog box and go to the
window that displays the newly designed Tutorial3
molecule. - Inspect the new molecule and info in the Text
Pane.
32 Advanced Molecule Design with Complicated
Recipient Step 6 Inspect and print the design
plan
- Verify the restriction enzymes used in the design
process. Add them to the display by using the
Molecular Display Setup dialog box gt Restriction
Map Setup. - Inspect Design Plan In the Text Pane, open the
Design Description Folder and subfolder Step 1.
Highlights of the bench instruction for creating
the new molecule - Recipient partial digestion -- 1 ApaLI site
inside recipient fragment. - Donor both termini were cut and then filled
in, and ApaLI linkers were attached to the blunt
ends before full digestion. - Ligation cohesive termini at both junctions.
- Enzymes to analyze and isolate insert with
correct orientation AvrII and ApaLI. - Vector NTI also recommends oligos or PCR
primers for clone analysis. - 3. Print the Design Description Open the
Design Description folder gtgt Step1 subfolder,
click the Print Active Pane button on the tool
bar.
33 Advanced Molecule Design II Complex Donor
Fragment
- Task Insert SV40s LARGE_T gene from SV40 to a
pre-determined section of BPV1. - Donor fragment SV40 LARGE_T gene (5 end with
440 bp flank region, 3 end at NcoI site) - Recipient fragment BPV1 from 5000 to 2500
bp - ligation no blunt-blunt
- Getting started
- 1. Open SV40 and BPV1 in Vector NTI
-
- 2. Arrange the display window to display the 2
molecules on the same screen - ? Select Menu gt Window gt Tile Vertical
34 Advanced Molecule Design with Complex DonorStep
1 Define the recipient fragment
- Activate the BPV1 Graphic Pane and click the Add
Fragment to Goal List button to open the Fragment
Wizard - 1st screen select Design Recipient fragment gt
click Next - 2nd screen select Set to a Position and enter
5000 as the start for the 5 of the new fragment,
click Next - 3rd screen select Set to a Position and enter
2500 as the start position of 3 for the new
fragment, then click Finish then Add to List
button.
35 Advanced Molecule Design with Complex DonorStep
1 Define the donor fragment
- Activate the SV40 Graphic Pane and click Add
Fragment to Goal List button to open the Fragment
Wizard - 1st screen select Design Donor fragment gt click
Next - 2nd screen Move the cursor to click/select the
LARGE_T signal, click Next - 3rd screen select Leave terminus Undefined,
click Next - 4th screen select Use flank region no larger
than and enter 440 bps (the flank region can also
be defined by dragging the mouse cursor in the
Graphic Pane from the 5), click Next - 5th screen for the 3 terminus, select Use
specific site, then SHIFT Click on the NcoI
site at nucleotide 38. - Click the Finish then Add to List button.
36 Advanced Molecule Design with Complex Donor
Step 3 Inspect the Goal Molecule Definition List
- From the tool bar, click the Open Goal List
button - Make sure the recipient (BPV1 fragment) is listed
first. - Click on the SV40 fragment, and then click the
Edit button to open Fragment Editor dialog box.
Notice that the left terminus has a flank region
while the right is defined with a Ncol site, thus
make the donor complicated that what used in the
previous example (both ends were defined). - Check the Inverted box to change the direction of
the donor fragment to match the recipients
direction and then click the OK button.
37 Advanced Molecule Design with Complex DonorStep
4 Describing the new molecule
- Click the Run button, in the Design Molecule
screen, enter name Tutorial4 - Click the Recipient's Start button to define the
start of the new molecule as the start of
recipient molecule. - Click General Info button to enter more info in
the General Data dialog box (Description
Tutorial molecule4 Extra-Chromosome
Replication Bacteria Replicon Type plasmid
Keyword your last name) - Click Add and then OK to return to the Design
Molecule dialog box.
38 Advanced Molecule Design with Complex DonorStep
5 Prepare to design and set the preferences
- In the Design Molecule screen, click the Design
button - Select the previously created Tutorial subset for
the new molecule, click OK to continue. - In the Design Parameters dialog box, leave all
settings at their default values. - Click the Preferences button, notice the
blunt-blunt ligation box remains turned off. - Leave everything at their default settings and
click the OK button to accept the Design
Preference and return to the Design Parameters
dialog box.
39 Advanced Molecule Design with Complex DonorStep
6 Design and inspect the new molecule
- After the design preferences are set, click the
Start Design button. - Close the emptied Lists dialog box and go to the
window that displays the newly designed Tutorial4
molecule. - Inspect the new molecule and info in the Text
Pane.
40 Advanced Molecule Design with Complex DonorStep
7 Inspect and print the design plan
- Verify the restriction enzymes used in the design
process. Add them to the display by using the
Molecular Display Setup dialog box Restriction
Map Setup. - Inspect Design Plan In the Text Pane, open the
Design Description Folder and subfolder Step 1.
Highlights of the bench instruction for creating
the new molecule - Recipient full digestion with BamHI and NcoI.
- Donor inverted, full digestion with BamHI and
NcoI. - Ligation cohesive termini at both junctions.
- Confirm the clone restriction digestion with
BbeI (3 sites in the BPV1 vector vs. 2 sites in
the Tutorial4 molecule). - Enzymes to isolate the insert BamHI and NcoI.
- Vector NTI also recommends oligos or PCR
primers for clone analysis. - 3. Print the Design Description With the
Design Description folder Step1 subfolder open,
click the Print Active Pane button on the tool
bar.
41Vector NTI Molecule Construct and DesignExercise
A simple molecule construction
- Task Clone the t-insert into pcDNA3.1s EcoR1
site1 use molecule construct Method. - Getting started Import the required molecules
- 1. In Vector NTI Explorer gt Menu gt Table gt
Import gt Molecules from Archive gt locate and open
the Vector NTI workshop folder on the Desktop gt
select e-gel.ma4 gt click Open gt enter Subset Name
e-gel to import the t-insert and pcDNA3.1 into
the e-gel subfolder. - 2. Open and arrange the display window to
display the 2 molecules on the same screen. -
- Construct the new molecule
42Identify the desired clones use Vector NTI
simulated gel electrophoresis tool
- Question In the previous exercise, the ligation
conditions permit all possible donor
orientations. How to identify the clones in which
the t-insert is cloned in the desired direction? - Answer Perform restriction digestion analysis
to analyze the clones. - Vector NTI Solution Before conduct restriction
digestion analysis, use Vector NTIs simulated
gel electrophoresis to configure and predict
digestion patterns for different clones.
43 Use Vector NTI simulated gel electrophoresis to
identify desired clones Step 1 Create a new gel
with desired electrophoresis parameters
- Click the New Gel button on the Main Toolbar
to create a new gel. - In the Gel Setup dialog box, select Example of
Agarose Gel from the list of Electrophoresis
Profile. You may modify all the settings and
create your favorite Electrophoresis Profile.
44 Use Vector NTI simulated gel electrophoresis to
identify desired clones Step 2 Create samples
and add to the gel
- In the Gel Display Window, click the Create
Sample button on the Window Toolbar. - In the Create Gel Samples dialog box, make the
following selection Source Molecules Subset
e-gel gt Molecules direct-clone Source Enzymes
Subset MAIN gt Enzymes Xmal - In the Sample Name box enter Sample 1 in the
Description box enter direct-clone cut by Xmal.
Click Add to Gel button. - Add the inverted-clone (cut by Xmal) to the same
gel as Sample 2.
45 Use Vector NTI simulated gel electrophoresis to
identify desired clones Step 3 Add Gel Marker
to the gel
- In the Gel Display Window, click the Add Marker
Lane button on the Window Toolbar - In the Choose Database Gel Marker dialog box,
select SPP-EcoRI for Lane 3. - Create the Lamda HindIII marker select Menu gt
Gel gt Create Gel Marker gt in the New Gel Marker
dialog box, enter the name. In the Gel Marker
tab, enter the each fragment (23130, 9416, 6557,
4361, 2322, 2027 and 560) gt click OK. Add this
marker to the Lane 4.
46 Use Vector NTI simulated gel electrophoresis to
identify desired clones Step 4 Run the Gel
- In the Gel Pane, click True-Scale View button.
You may also choose the Fit to Window button to
maximize the gel display. - Enter 130 in the time indicator box and press
the Enter key, the gel display is set for 1 h 30
min run. - Click the Step Forward or Step Back button to see
incremental electrophoresis progress, or click
the Animate button to view continuous gel run.
47 Use Vector NTI simulated gel electrophoresis to
identify desired clones Step 5 Inspect the Gel
Display Window Text Pane
- Notice for each sample, the number of fragments,
and the properties of each fragment is listed. - Notice that the Source link for each fragment is
also displayed, which directly lead users to the
fragment in the Graphic Pane of the original
molecule. - You can change the color for a fragment select a
fragment gt right click mouse and choose Sample
Fragment Properties gt in the subsequent dialog
box, choose desired color and line pattern.
48 Use Vector NTI simulated gel electrophoresis to
identify desired clones Step 6 Other Operations
with Gel Display
- Estimate Fragment Separation time Use the mouse
cursor to highlight/select the target fragments,
and then click the Calculate Separation Time
button. - Save the Gel Display Window select Menu gt Gel gt
Save as Gel Document gt enter a name and the gel
is saved in gel document format. The document
can be opened by selecting Menu gt Gel gt Open
Document. - Copy Gel Display Window Data select the desired
pane gt then click the Camera button gt make
further selections in the Camera dialog box
before make the copy. - Print the Gel Display Window activate the
intended pane by mouse clicking it gt click the
Print Active Pane button.
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