Abstract: One embodiment of the present disclosure provides a system and associated processes for sharing cardholder data (CHD) between a merchant that utilizes tokenization and a second merchant that may or may not utilize tokenization. In one embodiment, the merchant, or an employee of the merchant, can use the system and associated processes to reacquire CHD from a tokenization provider system. In one embodiment, the merchant identifies to the tokenization provider system a desire to share CHD, which is associated with a token, with a second merchant. The merchant and/or the tokenization provider system can then invite the second merchant to register with the tokenization provider system. Once registered with the tokenization provider system, the second merchant can access any CHD that the merchant associated with the second merchant.

Abstract: A novel method of pyrophosphorolysis activated polymerization (PAP) has been developed. In PAP, pyrophosphorolysis and polymerization by DNA polymerase are coupled serially for each amplification by using an activatable oligonucleotide P* that has a non-extendible 3?-deoxynucleotide at its 3? terminus. PAP can be applied for exponential amplification or for linear amplification. PAP can be applied to amplification of a rare allele in admixture with one or more wild-type alleles by using an activatable oligonucleotide P* that is an exact match at its 3? end for the rare allele but has a mismatch at or near its 3? terminus for the wild-type allele. PAP is inhibited by a mismatch in the 3? specific sequence as far as 16 nucleotides away from the 3? terminus. PAP can greatly increase the specificity of detection of an extremely rare mutant allele in the presence of the wild-type allele.

Abstract: A novel method of pyrophosphorolysis activated polymerization (PAP) has been developed. In PAP, pyrophosphorolysis and polymerization by DNA polymerase are coupled serially for each amplification by using an activatable oligonucleotide P* that has a non-extendible 3?-deoxynucleotide at its 3? terminus. PAP can be applied for exponential amplification or for linear amplification. PAP can be applied to amplification of a rare allele in admixture with one or more wild-type alleles by using an activatable oligonucleotide P* that is an exact match at its 3? end for the rare allele but has a mismatch at or near its 3? terminus for the wild-type allele. PAP is inhibited by a mismatch in the 3? specific sequence as far as 16 nucleotides away from the 3? terminus. PAP can greatly increase the specificity of detection of an extremely rare mutant allele in the presence of the wild-type allele.