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Table 4 Selective cloning of alphoid DNA arrays from human genome with a ARS-containing TAR vector

From: A general cloning system to selectively isolate any eukaryotic or prokaryotic genomic region in yeast

Transformant selection medium

Genomic DNA in transformation mix

Number of transformants per ug vector (range)

Yield of clones with alphoid DNA arrays (%)

SD-His-FoA*

no

5 (2–7)

N/A

SD-His-

no

2,095 (1,930–2,270)

N/A

SD-His-FoA

yes

245 (188–380)

50.0

SD-His-

yes

9,225 (8,560–9,620)

3.5

  1. Transformants were selected on either synthetic (SD) histidine minus or histidine minus plates containing 5-fluoroorotate (5-FOA) to select clones that had lost the URA3 marker. 5-FOA was excluded from top agar because of its toxic effect on yeast spheroplasts regeneration.