pTU10 [TRP1 --> URA3 converter] (ATCC® 87550)

Applications: YI-type (integrating) shuttle vectorhost modificationmarker swap vector TRP1 --> URA3  /  Depositors: FR Cross

Designations pTU10 [TRP1 --> URA3 converter]
Permits and Restrictions

View Permits

Depositors FR Cross
Biosafety Level 1
Vector Information
Size (kb): 6.5999999046325680
Vector: pTU10 (phagemid)
Construction: pBC KS+
Construct size (kb): 6.599999904632568
Features: gene disruption cassette: tr:URA3/kanR
marker(s): cmlR
replicon: f1
replicon: pMB1
restriction site: SmaI, EcoRI
restriction site: XhoI
YI-type (integrating) shuttle vector
host modification
marker swap vector TRP1 --> URA3
Restriction digests of the clone give the following sizes (kb): EcoRI--6.6; HindIII--5.0, 1.6; EcoRI/XhoI--3.4 3.2.
To convert the host phenotype from TRP1 to URA3, transform with the XhoI+EcoRI digested vector and select for Ura+ transformants.
Some combinations of marker swap plasmids and target locus may result in relatively high reversion rates. In most but not all cases the frequencies of successful convertants are greater than 30%.
A marker swap vector designed to change the S. cerevisiae host phenotype by one-step gene disruption of the TRP1 gene with the URA3 and kanR markers.
When swapping markers on an episomal plasmid, appropriate phenotype may result from loss of the plasmid unless a second selectable or scorable marker is used to ensure plasmid maintenance.
Vector was constructed by replacing an internal EcoRV fragment of TRP1 with a SmaI fragment containing the URA3 and kanR coding sequences. URA3 and TRP1 are in the opposite orientation.
Media ATCC Medium 1065 (see below) plus kanamycin (50.0 mcg/ml) plus chloramphenicol (25.0 mcg/ml) ATCC Medium 1065: Tryptone (Difco 0123), 10.0 g Yeast Extract (Difco 0127), 5.0 g NaCl, 10.0 g Distilled water, 1.0 L
Growth Conditions
Temperature: 37.0°C

Cross FR. 'Marker swap' plasmids: convenient tools for budding yeast molecular genetics. Yeast 13: 647-653, 1997. PubMed: 9200814

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component of:ATCC 87561
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