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What is papb? 


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PapB is a small DNA-binding transcriptional regulator that has been reported to regulate the expression of various fimbriae and adhesins in Uropathogenic Escherichia coli (UPEC) . It is a short BLUF protein from the purple bacterium Rhodopseudomonas palustris and functions to regulate the phosphodiesterase activity of its partner protein PapA . The PapB-PapA complex regulates biofilm formation in a light-dependent manner . In the context of Pleuropulmonary blastoma (PPB), type I PPB is a purely cystic lesion that has a microscopic population of primitive small cells with or without rhabdomyoblastic features, and PapB is not specifically mentioned in relation to PPB . In the context of pro-oxidant-antioxidant balance (PAB) assay, PapB is not mentioned . Therefore, PapB is a transcriptional regulator in UPEC and a BLUF protein involved in regulating the phosphodiesterase activity in Rhodopseudomonas palustris, but its role in PPB or PAB assay is not mentioned in the provided abstracts.

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The paper does not provide a specific definition or explanation of "PAPB."
PapB is a short BLUF protein from the purple bacterium Rhodopseudomonas palustris that regulates the phosphodiesterase activity of its partner protein PapA.
The paper does not provide information about what PapB is.
The paper does not provide a specific definition or explanation of "papb."

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