Spherulation-specific family 4. This protein is found in bacteria, archaea and eukaryotes. Proteins in this family are typically between 250 and 398 amino acids in length. There is a conserved NPG sequence motif and there are two completely conserved G residues that may be functionally important. Starvation will often induce spherulation - the production of spores - and this process may involve DNA-methylation. Changes in the methylation of spherulin4 are associated with the formation of spherules, but these changes are probably transient. Methylation of the gene accompanies its transcriptional activation, and spherulin4 mRNA is only detectable in late spherulating cultures and mature spherules. It is a spherulation-specific protein.
Meiotically up-regulated gene family. This protein was identified as being up-regulated during meiosis in S.pombe. This family of proteins is found in largely in plants and fungi. Proteins in this family are typically between 128 and 920 amino acids in length.
SEST_like. A family of secreted SGNH-hydrolases similar to Streptomyces scabies esterase (SEST), a causal agent of the potato scab disease, which hydrolyzes a specific ester bond in suberin, a plant lipid. The tertiary fold of this enzyme is substantially different from that of the alpha/beta hydrolase family and unique among all known hydrolases; its active site closely resembles two of the three components of typical Ser-His-Asp(Glu) triad from other serine hydrolases, but may lack the carboxylic acid.
Fibronectin type 3 domain; One of three types of internal repeats found in the plasma protein fibronectin. Its tenth fibronectin type III repeat contains an RGD cell recognition sequence in a flexible loop between 2 strands. Approximately 2% of all animal proteins contain the FN3 repeat; including extracellular and intracellular proteins, membrane spanning cytokine receptors, growth hormone receptors, tyrosine phosphatase receptors, and adhesion molecules. FN3-like domains are also found in bacterial glycosyl hydrolases.