2. Helpful hints in the processing of experimental data

Continuous processing and evaluation of experimental data is highly needed

2.1. Organization of work, type of data

- Avoid the following approach: „This year I am experimenting and next year is for the evaluation of what I have obtained“

- Miscellaneous software is in every day useTypes od data:

- Numerical data - raw data or data converted to the numerical form, may be obtained with certain tool (ruler) or equipment (spectrophotometer)- Graphical data - very important set of results, their quantification is highly needed- Structural data - analytical data, outcomes from sequencing machines, etc..

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

2.1. Organization of work, type of dataSoftware used in modern laboratory:

- Software controlling machines - sometimes very complex (PCR cycler), the most important is the form of the output (table, text)

- Specialized software - very important in the field of image analysis and processing of sequence data

- General software - text and spreadsheet editors, graphical software, presentation software, mainly products of Microsoft at the Charles University

- Open source software - very good tools, often problems with the compatibility- Online software - mainly in bioinformatics, but there is also other software available (e.g. graphical editors)

2. Helpful hints in the processing of experimental data

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

2.1. Organization of work, type of data

Windows Explorer or similar software (Windows Commander)

Protocols named according to date - the folder in format YYMMDD (081030). Must correspond to date in the laboratory book.

Never modify folder with raw data - copying to the folder with other files accompanying the experiment.

Back up data - external HDD or DVD or CD, online hard drives

Do not delay backuping!!!

Experiment must be always finished with complete documentation, do not start others without finishing the previous.

2. Helpful hints in the processing of experimental data

Windows Explorer

2.2. Data explorers, correct data handling and saving

2. Helpful hints in the processing of experimental data

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

2.2. Data explorers, correct data handling and saving

2. Helpful hints in the processing of experimental data

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

Total Commander

2.2. Data explorers, correct data handling and saving

2. Helpful hints in the processing of experimental data

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

2. Helpful hints in the processing of experimental data

Bulk data processing, their editing and graphical output

Microsoft Excel - suitable for all basic jobs including statistics

Specialized statistical software - in case of need of more specialized statistical evaluation, e.g. software Statgraphics, NCSS Statgraphics, NCSS

2.3. Spreadsheets, statistical software, graph editors

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

Microsoft Excel – whole protocol management, automation of numerical operations

2. Helpful hints in the processing of experimental data

2.3. Spreadsheets, statistical software, graph editors

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

Sigma Plot - line/scatter plots, bar charts, histograms

2. Helpful hints in the processing of experimental data

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

2.3. Spreadsheets, statistical software, graph editors

2.3. Processing of structural and sequence data

Notepad

- Avoids excessive formatting

- Plenty of online and stand alone applications for the processing of sequences

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

2. Helpful hints in the processing of experimental data

Vector NTI (Invitrogen)

Geneious

2.3. Processing of structural and sequence data

2. Helpful hints in the processing of experimental data

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

ImageJ (NIH)

Fiji

http://rsb.info.nih.gov/ij/docs/concepts.html

2.4 Image analysis, graphical software, presentation software

2. Helpful hints in the processing of experimental data

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

NIS elements

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

2.4 Image analysis, graphical software, presentation software

2. Helpful hints in the processing of experimental data

Graphical programes for grabbing and processing of microscopical images

Leica

Zeiss

Nikon

Olympus

2. Helpful hints in the processing of experimental data

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

2.4 Image analysis, graphical software, presentation software

Kleine-Vehn, Mol Syst Biol 7:540, 2011

8 bit – 256 stupňů šedi (28)

12 bit – 4096 stupňů šedi (212)

16 bit – 65536 stupňů šedi (216)

Color depth in microscopy

2. Helpful hints in the processing of experimental data

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

PIN3::PIN3:YFPMaximální projekce

Žádníková et al., Development 137, 607-617, 2009

From image sequence to the image projection

2. Helpful hints in the processing of experimental data

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(a) (c)FM 4-64 PIN1-GFP Merged

Analysis of colocalization

Jelínková et al., Plant Journal 61, 883-891, 2009

2. Helpful hints in the processing of experimental data

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

0

50

100

150

200

250

0 50 100 150 200 250

Intensity of PIN1::PIN1:GFP(green channel)

Absolute intensity

Inte

nsi

ty o

f F

M 4

-64

(re

d c

han

nel

)

(e)

Jelínková et al., Plant Journal 61, 883-891, 2009

2. Helpful hints in the processing of experimental data

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

Analysis of colocalization

FRAP in tobacco BY-2 cells expressing AtPIN1-GFP

Prebleach Postbleach FRAP 30 min

Analysis of intracellular protein dynamics

B130P16: Praktické základy vědecké práce Katedra experimentální biologie rostlin PřF UK http:/lhr.ueb.cas.cz/petrasek

2. Helpful hints in the processing of experimental data

Vandenbussche et al., 2009, Development 137, 597-606

2. Helpful hints in the processing of experimental data

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

Analysis of intracellular protein dynamics

Vandenbussche et al., 2009, Development 137, 597-606B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

Analysis of intracellular protein dynamics

Laňková et al., in preparation

PIN1-GFP PIN1-GFP, 30 min 20 µM Oryzalin

PIN1-GFP, 30 min 0.5 µM LatB

> 1 µm/s < 0.4 µm/s 0.4 - 1 µm/s

2. Helpful hints in the processing of experimental data

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

Analysis of intracellular protein dynamics

GFP peak

RFP peak

2. Helpful hints in the processing of experimental data

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

Interaction between two proteins - FRET analysis in vivo (PIN1-ADL1)

Spectral detection using ZEISS META 510 detector, laser 477 nm

480 500 520 540 560 580 600 620 640 660 680 700Em ission w avelength (nm )

585

1085

1585

Intensity

R O I 1 R O I 2 R O I 3 R O I 4 R O I 5

Average fluorescence intensity measured over the emission spectrum in the following region of interests:

ROI1 - middle cell plate

ROI2, ROI3 - growing ends of the cell plate

ROI4, ROI5 - transversal and longitudinal plasma membranes

500-520 nm unmixed

600-620 nm unmixed

ROI1- low FRET

ROI2, ROI3 - high FRET

ROI4, ROI5 - no FRET

1

2

3

45

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

Interaction between two proteins - FRET analysis in vivo (PIN1-ADL1)

Irfan View - good choice for every day browsing through image documentation

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

2. Helpful hints in the processing of experimental data

2.4 Image analysis, graphical software, presentation software

Corel Photo Paint

Adobe Photoshop

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

2. Helpful hints in the processing of experimental data

2.4 Image analysis, graphical software, presentation software

Corel Photo Paint či Adobe Photoshop - avoid excessive image adjustment!!

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

2. Helpful hints in the processing of experimental data

2.4 Image analysis, graphical software, presentation software

Corel Draw

Adobe Illustrator

B130P16E: Practical basics of scientific work Department Experimental Plant Biology FSCU http:/lhr.ueb.cas.cz/petrasek

2. Helpful hints in the processing of experimental data

2.4 Image analysis, graphical software, presentation software