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2PQQ
PQQ may refer to: * Pyrroloquinoline quinone, enzyme cofactor * Port Macquarie Airport, IATA Airport Code * Pre-qualification questionnaire, which precedes an invitation to tender An invitation to tender (ITT, also known as a call for bids or a request for tenders) is a formal, structured procedure for generating competing offers from different potential suppliers or contractors looking to obtain an award of business activ ... See also * PQ2 (other) {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrroloquinoline Quinone
Pyrroloquinoline quinone (PQQ), also called methoxatin'','' is a redox cofactor and antioxidant. Quinoprotein glucose dehydrogenase is used as a glucose sensor in bacteria. PQQ stimulates growth in bacteria. History It was discovered by J. G. Hauge in 1964 as the third redox cofactor after nicotinamide and flavin adenine dinucleotide, flavin in bacteria (although he hypothesised that it was naphthoquinone). Anthony and Zatman also found the unknown redox cofactor in alcohol dehydrogenase. In 1979, Salisbury and colleagues as well as Duine and colleagues extracted this prosthetic group from methanol dehydrogenase of methylotrophs and identified its molecular structure. Adachi and colleagues discovered that PQQ was also found in ''Acetobacter''. Biosynthesis A novel aspect of PQQ is its biosynthesis in bacteria from a ribosomally translated precursor peptide, PqqA (UniProt ). A glutamic acid and a tyrosine in PqqA are cross-linked by the radical SAM enzyme PqqE () with the he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Macquarie Airport
Port Macquarie Airport is an airport in Port Macquarie, New South Wales, Port Macquarie, New South Wales, Australia. The airport is westAeronautical Chart of the city centre and is owned and managed by the Port Macquarie-Hastings Council on behalf of its owners – the constituents of the Hastings. The ownership is not to be confused with the Port Macquarie Airport Proprietary Limited. The airport had 222,534 revenue passengers, the List of the busiest airports in Australia, 32nd busiest in Australia, and 4,821 aircraft movements in 2017–2018. Refers to "Regular Public Transport (RPT) operations only" Airlines and destinations Historically a number of airlines have flown to the airfield. These include: *Virgin Australia *JetGo *Bonza *Ansett Australia *Hazelton Airlines *Kendell Airlines *East-West Airlines (Australia), East-West Airlines *FlyPelican *Brindabella Airlines Virgin Australia On 4 February 2008, Virgin Blue (now Virgin Australia) commenced direct scheduled s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Invitation To Tender
An invitation to tender (ITT, also known as a call for bids or a request for tenders) is a formal, structured procedure for generating competing offers from different potential suppliers or contractors looking to obtain an award of business activity in works, supply, or service contracts, often from companies who have been previously assessed for suitability by means of a supplier questionnaire (SQ) or pre-qualification questionnaire (PQQ). Unlike a request for proposal (RFP), which is used when a company sources for business proposals, ITTs are used when a government or company does not require the submission of an original business proposal and is looking solely to award a contract based on the best tender submitted. As a result, whereas ITTs are often decided based on the best price offered, decisions on RFPs may also involve other considerations such as technology and innovation. Both are forms of reverse auction. At the same time, variants may be requested in an ITT, whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
