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- BpsA (N(4)-bis(aminopropyl)spermidine synthase) is a single-module non-ribosomal peptide synthase (NRPS) (also see non-ribosomal peptide (NPR)) located in the cytoplasm responsible for the process of creating branched-chain polyamines, and producing spermidine and spermine. It has a singular ligand in its structure involved with Fe3+ and PLIP interactions. As seen by its EC number, it is a transferase (2) that transfers an alkyl or aryl group other than methyl groups (5) (2.5.1). BpsA was first discovered in the archaea Methanococcus jannaschii and thermophile Thermococcus kodakarensis and since then has been used in a variety of applications such as being used as a reporter, researching phosphopantetheinyl transferase (PPTase), and for NRPS domain recombination experiments it can be used as a model. Both (hyper)thermophilic bacteria and euryarchaeotal archaea seem to conserve BpsA and orthologs as branches chains polyamines are crucial for survival. There is also a second type of BpsA also known as Blue-pigment indigoidine synthetase that produces the pigment indigoidine and is found in organisms like Erwinia chrysanthemi. However, not much seems to be known about this variant except that it is a synthase, and it does not yet appear to be classified under an EC number. (en)
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- N4-bisspermidine synthase (en)
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- BpsA (N(4)-bis(aminopropyl)spermidine synthase) is a single-module non-ribosomal peptide synthase (NRPS) (also see non-ribosomal peptide (NPR)) located in the cytoplasm responsible for the process of creating branched-chain polyamines, and producing spermidine and spermine. It has a singular ligand in its structure involved with Fe3+ and PLIP interactions. As seen by its EC number, it is a transferase (2) that transfers an alkyl or aryl group other than methyl groups (5) (2.5.1). BpsA was first discovered in the archaea Methanococcus jannaschii and thermophile Thermococcus kodakarensis and since then has been used in a variety of applications such as being used as a reporter, researching phosphopantetheinyl transferase (PPTase), and for NRPS domain recombination experiments it can be used (en)
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