Biological process

down regulation of glycoprotein metabolic process, down regulation of glycoprotein metabolism, down-regulation of glycoprotein metabolic process, down-regulation of glycoprotein metabolism, downregulation of glycoprotein metabolic process, downregulation of glycoprotein metabolism, negative regulation of glycoprotein metabolism

Any process that stops, prevents or reduces the frequency, rate or extent of glycoprotein metabolic process.

human serum amyloid P component (SAP) P02743 inhibits viral neuraminidase, NA (exo-alpha-sialidase activity) and thus the metabolism of glycoproteins, demonstrated in Figure 4A PMID:23544079, (IDA), the negative regulation term would be applied to this protein