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MACHEREY-NAGEL

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MACHEREY-NAGEL

Plasmid DNA
Purification

User Manual

NucleoBond

Xtra Midi

NucleoBond

Xtra Maxi

NucleoBond

Xtra Midi Plus

NucleoBond

Xtra Maxi Plus

January 2008/Rev. 04

Procedur

e in

English

German

Frenc

NEW!

MACHEREY-NAGEL

EN ISO 9001:2000

CERTIFIED

A032494

ManualNBXtraR04en1/7/0/01.08 DP

Printed in Germany

Summary of Contents for NucleoBond Xtra Midi

Page 1: ...id DNA Purification User Manual NucleoBond Xtra Midi NucleoBond Xtra Maxi NucleoBond Xtra Midi Plus NucleoBond Xtra Maxi Plus January 2008 Rev 04 Procedure in English German French NEW MACHEREY NAGEL...

Page 2: ...eoBond Xtra column filter discard NucleoBond Xtra column filter discard NucleoBond Xtra column filter 8 2nd Washing Buffer WASH 8 ml Buffer WASH 25 ml 9 Elution Buffer ELU 5 ml Buffer ELU 15 ml 10 Pre...

Page 3: ...9 Filtration and loading of the lysate 17 4 10 Washing of the column 17 4 11 Elution and concentration of plasmid DNA 18 4 12 Determination of DNA yield and quality 21 4 13 Convenient stopping points...

Page 4: ...purification Midi Maxi French 47 7 8 Low copy plasmid purification Midi Maxi French 53 7 9 Concentration of NucleoBond Xtra eluates with the NucleoBond Finalizers French 57 8 Appendix 60 8 1 Troubles...

Page 5: ...EU 100 ml 500 ml 1000 ml 100 ml 500 ml Buffer EQU 200 ml 2 x 500 ml 2 x 1000 ml 200 ml 2 x 500 ml Buffer WASH 100 ml 500 ml 1000 ml 100 ml 500 ml Buffer ELU 60 ml 300 ml 600 ml 60 ml 300 ml RNase A ly...

Page 6: ...150 ml 750 ml Buffer EQU 500 ml 2 x 1000 ml 500 ml 5 x 1000 ml 500 ml 2 x 1000 ml 500 ml Buffer WASH 300 ml 1000 ml 500 ml 3 x 1000 ml 300 ml 1000 ml 500 ml Buffer ELU 180 ml 900 ml 2 x 900 ml 180 ml...

Page 7: ...ipment for growing and harvesting bacteria e g inoculating loop culture tubes and flasks 37 C shaking incubator and centri fuge with rotor and tubes or bottles for harvesting cells Refrigerated centri...

Page 8: ...llow a time saving simultaneous clearing of bacterial lysate and loading of cleared lysate onto the Nu cleoBond Xtra column Furthermore the use of the column filters avoids the time consuming centrifu...

Page 9: ...ysis Buffer LYS to the suspension Mix gently by inverting the tube 5 times Do not vortex as this will shear and release contaminating chromosomal DNA from cellular debris into the suspension Incubate...

Page 10: ...is a silica based anion exchange resin developed by MACHEREY NAGEL and covered under European Patent EP 0 496 822 It is devel oped for routine separation of different classes of nucleic acids like oli...

Page 11: ...rom proteins to RNA are washed from the column the positive charge of the resin is neutralized by a pH shift to slightly alkaline conditions and pure plasmid DNA is eluted in a high salt elution buffe...

Page 12: ...or each host strain plasmid construct combination individually Cell cultures should be grown under antibiotic selection at all times to ensure plas mid propagation Without this selective pressure cell...

Page 13: ...t weight Overnight cultures grown in LB medium usually reach an OD600 of 3 6 under vigorous shaking in flasks Fermentation cultures even reach an OD600 of 10 and more The expected DNA yield for a high...

Page 14: ...tures for detailed information on calculating ODV OD600 x Vol refer to section 4 4 For higher yields it is advantageous to increase the cell culture and lysis buffer vol umes even more e g by factor 3...

Page 15: ...ulture volumes in case of e g low copy vector purification section 4 5 Table 3 By rule of thumb calculate the necessary lysis buffer volumes for RES LYS and NEU as follows Vol ml Culture Volume ml x O...

Page 16: ...individually adjust the height of each column see Figure 3 The Plastic Washers can also be used to hold the columns on top of suitable collecting tubes or flasks The NucleoBond Xtra Combi Rack can be...

Page 17: ...er and even very large lysate volumes can be applied without the risk of clogging This is especially important for e g low copy plasmid purification However if more than the recommended cell mass see...

Page 18: ...alination of plasmid and cosmid DNA eluates that are obtained by anion exchange chromatog raphy based DNA purification The sample is precipitated with isopropanol as men tioned above and loaded onto a...

Page 19: ...ved by using 600 l of elution buffer For a higher concentration experienced users can lower the elution buffer volume to 400 200 l Table 4 gives an overview about recovery and concentration of differe...

Page 20: ...l of elution buffer For a higher concentration experienced users can lower the elution buffer volume to 600 400 l Table 5 gives an overview about recovery and concentration of different amounts of pl...

Page 21: ...ure plasmid DNA An A260 280 ra tio above 2 0 is a sign for too much RNA in your preparation an A260 280 ratio below 1 8 indicates protein contamination Plasmid quality can be checked by running the pr...

Page 22: ...Nase A solution back to the bottle con taining Buffer RES and shake well Note the date of RNase A addition The fi nal concentration of RNase A is 60 g ml Buffer RES Store Buffer RES with RNase A at 4...

Page 23: ...Phrases R 36 38 Irritating to eyes and skin R 42 43 May cause sensitization by inhalation and skin contact Safety Phrases S 22 Do not breathe dust S 24 Avoid contact with the skin S 26 In case of cont...

Page 24: ...C and 300 rpm for 12 16 h Note To utilize the entire large binding capacity of the NucleoBond Xtra columns it is important to provide enough plasmid DNA If you are not sure about the plasmid copy numb...

Page 25: ...inutes at 30 40 C until precipitate is dis solved completely Cool buffer down to room temperature 20 25 C Add Lysis Buffer LYS to the suspension Mix gently by inverting the tube 5 times Do not vortex...

Page 26: ...precipitate by inverting the tube 3 times directly before applying the lysate to the equilibrated NucleoBond Xtra column filter to avoid clogging of the filter The lysate is simultaneously cleared an...

Page 27: ...ra column with Wash Buffer WASH It is important to remove the column filter before applying the washing buffer to avoid low purity 8 ml 25 ml Elution Buffer ELU Elute the plasmid DNA with Elution Buff...

Page 28: ...g preferably 15 000 x g for 5 min at room temperature 20 25 C 2 ml 5 ml Carefully remove ethanol completely from the tube with a pipette tip Allow the pellet to dry at room temperature 20 25 C Note P...

Page 29: ...ond Xtra columns it is important to provide enough plasmid DNA For the standard low copy procedure the cul ture volumes were doubled compared to the high copy vector protocol However due to a plasmid...

Page 30: ...eral minutes at 30 40 C until precipitate is dis solved completely Cool buffer down to room temperature 20 25 C Add Lysis Buffer LYS to the suspension Mix gently by inverting the tube 5 times Do not v...

Page 31: ...homogeneous mixing Make sure to neutralize completely to precipitate all the protein and chromosomal DNA The lysate should turn from a slimy viscous consistency to a low viscosity homogeneous suspensi...

Page 32: ...smid content of your eluate prior to the precipitation step by measuring A260 see section 4 12 Load ing more DNA might lead to clogging and complete loss of your sample 3 5 ml for 5 ml eluate 10 5 ml...

Page 33: ...he DNA 5 Elute DNA Remove the NucleoBond Finalizer from the syringe pull out the plunger of a 1 ml Syringe and attach the NucleoBond Finalizer to the syringe outlet Note Refer to section 4 11 Table 4...

Page 34: ...es wichtig ausreichend Plasmid DNA zu laden Sollten Sie bzgl Kopienzahl des Plasmids und Wachstumsverhaltens des Bakterienstamms unsicher sein erh hen Sie das Kulturvolumen und entscheiden in Schritt...

Page 35: ...fer LYS Vor Gebrauch berpr fen Sie Lysis Buffer LYS auf ausgefallenes SDS Sollte ein wei es Pr zipitat sichtbar sein erw rmen Sie den Puffer f r einige Minuten auf 30 40 C bis das Pr zipitat komplett...

Page 36: ...en Sie sofort aber vorsichtig durch 10 bis 15 maliges Invertieren Vortexen Sie nicht Das f r diesen Schritt verwendete Gef sollte nicht mehr als zwei Drittel gef llt sein um ein gleichm iges Durchmisc...

Page 37: ...ie die Zentri fugation vorzugsweise bei h herer Geschwindigkeit oder geben Sie ihn auf den NucleoBond Xtra Filter Diese Lysatkl rung ist sehr wichtig da restliches Pr zipitat die NucleoBond Xtra S ule...

Page 38: ...z B BACs f hren Fahren Sie mit Schritt 13 fort um die Isopropanol F llung gem Zentrifugati onsprotokoll durchzuf hren oder folgen Sie der Anleitung in Kapitel 7 6 zur Kon zentrierung und Entsalzung mi...

Page 39: ...eratur 20 25 C an der Luft trocknen Hinweis Zu langes Trocknen des Pellets kann das anschlie ende L sen der DNA er schweren 5 10 min 10 15 min 15 L sen der DNA L sen Sie das DNA Pellet in einem geeign...

Page 40: ...unten angegebenen Volumens durch Verd nnen der Vorkultur um den Faktor 1 1000 Stellen Sie sicher dass das Medium das n tige Antibiotikum enth lt W hlen Sie ein gr eres Volumen Kapitel 4 5 falls die K...

Page 41: ...na der Puffer RES LYS und NEU proportio nal in den Schritten 4 5 and 7 Eventuell m ssen zus tzliche Volumina der Lysispuffer bestellt werden s Bestellinformation f r das NucleoBond Xtra Buffer Set I K...

Page 42: ...tzung aus den Zelltr mmern in die Suspension f hren kann Inkubieren Sie die Mischung f r 5 min bei Raumtemperatur 20 25 C Hinweis Erh hen Sie das Volumen des Puffers LYS proportional falls mehr als di...

Page 43: ...dass die Neutralisation vollst ndig erfolgt ist um eine quantitative F llung von Protein und genomischer DNA zu gew hrleisten Das schleimige viskose Lysat sollte nach Zugabe des Puffers NEU d nnfl ssi...

Page 44: ...or der Pr zipitation durch Bestimmung des A260 siehe Kapitel 4 12 Die Beladung mit gr eren DNA Mengen kann zum Verstopfen des NucleoBond Finalizers und somit zum kompletten Verlust Ihrer Probe f hren...

Page 45: ...r f r 10 Minuten bei 80 C Zu intensives Trocknen der DNA kann allerdings zu einer reduzierten Wiederfindung f hren 5 Elution der DNA Entfernen Sie den NucleoBond Finalizer von der 30 ml Spritze ziehen...

Page 46: ...1 2008 Rev 04 46 Midi NucleoBond Finalizer Maxi NucleoBond Finalizer Large 6 Bestimmung der Plasmid Ausbeute Bestimmen Sie photometrisch die Plasmidausbeute und berpr fen Sie die Plasmidintegrit t mit...

Page 47: ...n tes pas s r du nombre de copies de votre plasmide ou du comportement de la culture vis vis de la croissance bact rienne augmentez le volume de culture et d cidez l tape 3 du nombre de cellules utili...

Page 48: ...es lyser 8 ml 12 ml 5 Lyse cellulaire Buffer LYS Avant d utiliser le tampon LYS v rifiez que le SDS n a pas pr cipit Si un pr cipit blanc est visible chauffez le tampon quelques minutes 30 40 C jusqu...

Page 49: ...imm diatement avec pr caution le lysat en inversant le tube 10 15 fois Ne pas utiliser de vortex Le flacon ou le tube utilis pour cette tape ne doit pas tre rempli au plus des deux tiers afin de perm...

Page 50: ...gation de pr f rence une vitesse plus lev e ou chargez le lysat sur le filtre NucleoBond Xtra pr alablement quilibr Cette tape de clarification est extr mement importante En effet les r sidus du pr ci...

Page 51: ...taille comme des BACs Passez l tape 13 pour le protocole de centrifugation apr s la pr cipitation l isopropanol ou continuez avec la section 7 9 pour la concentration de l ADN plasmidique et son d sal...

Page 52: ...ure ambiante 20 25 C Remarque l ADN plasmidique peut tre plus difficile dissoudre si le culot est tr s sec 5 10 min 10 15 min 15 Reconstitution de l ADN Dissoudre le culot d ADN dans un volume ad quat...

Page 53: ...B contenant l antibiotique s lectif appropri Si la culture pr sente une faible croissance ou si le plasmide est connu pour tre faiblement repr sent consultez la section 4 5 du protocole pour l utilisa...

Page 54: ...7 ventuellement il faudra commander un volume suppl mentaire de tampon de lyse voir I information de commande du Nu cleoBond Xtra Buffer Set I chapitre 8 2 Utilisez la centrifugation pour la clarific...

Page 55: ...tionnerait se d tacherait des d bris cellulaires et contaminerait alors la suspension Incubez le m lange temp rature ambiante 20 25 C pendant 5 min Remarque augmentez proportionnellement le volume de...

Page 56: ...ttre un m lange homog ne Veillez neutraliser compl tement pour pr cipiter toutes les prot ines et l ADN chromosomique Le lysat doit passer d une forme gluante et visqueuse une forme moins visqueuse un...

Page 57: ...nu d ADN plasmidique de vos luats avant de passer l tape de pr cipitation en mesurant A260 voir la section 4 12 Charger plus d ADN peut entra ner une surcharge et une perte compl te de l chantillon 3...

Page 58: ...hanolique Cependant le taux de r cup ration final peut tre r duit en raison d un s chage excessif de l ADN 5 Elution de l ADN Enlevez le NucleoBond Finalizer de la seringue retirez le piston d une ser...

Page 59: ...Rev 04 59 Midi NucleoBond Finalizer Maxi NucleoBond Finalizer Large 6 D termination du rendement D terminez le rendement d ADN plasmidique par spectrophotom trie UV et confirmez l int grit du plasmid...

Page 60: ...n a 1 agarose gel Table 6 NucleoBond Xtra eluate volumes required for an analytical check Volume required l Sample Purification step Midi Maxi I Cleared lysate of protocol step 8 500 200 II Column flo...

Page 61: ...1 agarose gel Equal amounts of plasmid DNA before lane 1 and after lane 4 purification using NucleoBond Xtra Midi are shown with a recovery of 90 M 1 2 3 4 5 M Marker HindIII 1 I cleared lysate ccc li...

Page 62: ...olved SDS or other precipitates are present in the sample Load the crude lysate onto the NucleoBond Xtra column filter inserted in the NucleoBond Xtra column This ensures com plete removal of SDS prec...

Page 63: ...olumn size with stan dard lysis buffer volumes Incomplete lysis not only blocks the column but can also significantly reduce yields Refer to section 4 4 and 4 5 for recommended culture volumes and sec...

Page 64: ...er WASH Buffer WASH was used instead of Buffer EQU for the first wash Buffer EQU has to be used to wash out the NucleoBond Xtra column filter to avoid SDS carryover Only minimal amounts of DNA were lo...

Page 65: ...o detailed trouble shooting No or low plasmid DNA yield Dead volume too high Especially when you aim for high concentration you need to elute in small volumes But naturally you will lose parts of your...

Page 66: ...can be ex pected Fresh elution buffer was used for second elution step The second elution step is crucial for optimal yield but to achieve a high DNA concentration the eluate of the first elution step...

Page 67: ...tinued DNA is degraded Make sure that your entire equipment pipettes centrifuge tubes etc is clean and nuclease free Do not lyse the sample with Buffer LYS for more than 5 min DNA is irreversibly dena...

Page 68: ...lus For use with NucleoBond Xtra Maxi Maxi EF 740419 20 20 large filters 20 syringe sets RNase A 740505 100 mg RNase A 740505 50 50 mg 8 3 Product use restriction warranty NucleoBond Xtra Midi Maxi ki...

Page 69: ...in connection with the sale or the failure of MA CHEREY NAGEL products to perform in accordance with the stated specifications This warranty is exclusive and MACHEREY NAGEL makes no other warranty ex...

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