Glutamine
Glutamine is the most abundant naturally occurring, nonessential amino acid in the human body, and one of the few amino acids that can directly cross the blood–brain barrier. Humans obtain glutamine through catabolism of proteins in foods they eat. In states where tissue is being built or repaired, like growth of babies, or healing from wounds or severe illness, glutamine becomes conditionally essential.
IFFO1
IFFO in human is located on the minus strand at Chromosome 12p13.3. The protein contains 17,709 nucleotide bases that encodes for 570 amino acids. The basal isoelectric point is 4.83. "IFFO1" contains a highly conserved filament domain that spans 299 amino acids from amino residue 230 to 529. This region has been identified as pfam00038 conserved protein domain family. Due to alternative splicing, there are 7 isoforms of IFFO1 in humans with 10 typical coding exons.