Selenocysteine (Sec)
Selenocysteine is recognized as the 21st amino acid but, unlike other amino acids present in proteins, it is not coded for directly in the genetic code. Selenocysteine is encoded by a UGA codon, which is normally a stop codon; however, like the other amino acids used by cells, selenocysteine has a specialized transfer RNA (tRNA). Selenocysteine was named as an amino acid in 2002 and found to be the selenium analogue of cysteine, in which a selenium atom replaces sulfur. Selenocysteine is present in several enzymes, such as formate dehydrogenases, glycine reductases, and some hydrogenases. It has been discovered that HIV-1 encodes a functional selenoprotein, and patients with HIV infection have been shown to have a lower-than-average blood plasma selenium level.
Micromole per liter | µmol/L = mcmol/L = umol/L = µM/L = mcM/L = uM/L = micromol/L |
Milligram per liter | mg/L = millig/L = milligram/L = mg/liter |
Milligram per deciliter | mg/dL = millig/dL = milligram/dL |
Milligram per 100 milliliters | mg/100mL = millig/100mL = milligram/100mL |
Milligram percent | mg% = millig% = milligram% |
Microgram per milliliter | µg/mL = mcg/mL = ug/mL= microg/mL = microgram/mL |
Lab units Conversion Calculator. Convert Selenocysteine (Sec) level to µmol/L, mg/L, mg/dL, mg/100mL, mg%, µg/mL. Clinical laboratory units online conversion from conventional or traditional units to Si units. Table of conversion factors for Selenocysteine (Sec).