Isothermal amplification components and processes

A method for detecting a target nucleic acid sequence in a sample, the method comprising:

• (a) amplifying a target nucleic acid sequence in a sample under an isothermal amplification condition, wherein the target nucleic acid sequence comprises a first strand and a second strand complementary to each other, and wherein the amplifying comprises contacting a double-stranded nucleic acid comprising the target nucleic acid sequence with:
• (i) a first primer and a second primer, wherein the first primer is capable of hybridizing to a sequence of the first strand of the target nucleic acid sequence, and the second primer is capable to hybridizing to a sequence of the second strand of the target nucleic acid sequence;
• and
• (ii) an enzyme having a hyperthermophile polymerase activity, thereby generating a nucleic acid amplification product, wherein the nucleic acid amplification product comprises:
• (1) the sequence of the first primer or a portion thereof, or the reverse complement thereof,
• (2) the sequence of the second primer or a portion thereof, or the reverse complement thereof, and
• (3) a spacer sequence flanked by (1) and (2), wherein the spacer sequence is 1 to 10 bases long;
• and
• (b) detecting the nucleic acid amplification product, wherein the detecting is performed in 20 minutes or less from the time the double-stranded nucleic acid is contacted with (a)(i) the first and second primers and (a)(ii) the enzyme having a hyperthermophile polymerase activity,
• wherein the method does not comprise using any enzymes that are not a polymerase.