| SIT4 protein phosphatase | <enzyme> From saccharomyces cerevisiae; functions in late g1 for progression into s phase Registry number: EC 3.1.3.- (26 Jun 1999) |
|---|---|
| SKS1 protein kinase | <enzyme> Sks1 - suppressor kinase of snf3; suppresses the snf3 growth defect in saccharomyces cerevisiae; genbank u30613 Registry number: EC 2.7.10.- (26 Jun 1999) |
| SNF4 protein kinase | <enzyme> Has been sequenced; appears to activate snf1 protein kinase; a 36 kD protein; do not confuse with cat3 protein, a catalase Registry number: EC 2.7.1.- Synonym: cat3 protein kinase, sci1 gene product (26 Jun 1999) |
| SNRK protein kinase | <enzyme> A member of the snf1 family of protein kinases; mw 81.6 kD; consists of 746 amino acid residues; genbank x89383 Registry number: EC 2.7.10.- Synonym: snrk protein, snrk gene product (26 Jun 1999) |
| S protein | The major fragment produced from pancreatic ribonuclease by the limited action of subtilisin, which cleaves the ribonuclease between residues 20 and 21; the smaller fragment (residues 1-20) is S peptide. (05 Mar 2000) |
| SSP31 protein kinase | <enzyme> From saccharomyces cerevisiae; has hybrid structure of serine-threonine and tyrosine kinases Registry number: EC 2.7.1.- Synonym: ssp31 protein, ssp31 gene product (26 Jun 1999) |
| native protein | The concept of a protein in its natural state, in the cell, unaltered by heat, chemicals, enzyme action, or the exigencies of extraction. (05 Mar 2000) |
| staphylococcal protein a | A protein present in the cell wall of most staphylococcus aureus strains. The protein selectively binds to the fc region of human normal and myeloma-derived IgG. It elicits antibody activity and may cause hypersensitivity reactions due to histamine release; has also been used as cell surface antigen marker and in the clinical assessment of b lymphocyte function. (12 Dec 1998) |
| STE11 protein kinase | <enzyme> Protein kinase required for cell-type-specific transcription and signal transduction in saccharomyces cerevisiae Registry number: EC 2.7.1.- (26 Jun 1999) |
| STE8 protein kinase | <enzyme> 659 amino acid residues; a s. Pombe protein kinase homologous to yeast ste11 protein kinase; required for signal transduction Registry number: EC 2.7.1.- Synonym: ste8 gene product (26 Jun 1999) |
| Nek1 protein kinase | <enzyme> Phosphorylates serine, threonine, and tyrosine residues Registry number: EC 2.7.1.- Synonym: nek1 kinase (26 Jun 1999) |
| Nek2 protein kinase | <enzyme> Homologous to nima mitotic regulator of aspergillus nidulans; genbank z29066 Registry number: EC 2.7.10.- Synonym: nek2 protein (26 Jun 1999) |
| Nek3 protein kinase | <enzyme> Homologous to nima mitotic regulator of aspergillus nidulans; genbank z29067 Registry number: EC 2.7.10.- Synonym: nek3 protein (26 Jun 1999) |
| nerve tissue protein s 100 | Highly acidic calcium-binding protein found in large concentration in the brain and believed to be glial in origin; also found in other organs in the body. (12 Dec 1998) |
| stimulatory protein 1 | An RNA polymerase II transcription factor in vertebrates; binds to DNA in regions rich in G and C residues; a general promoter-binding factor necessary for the activation of many genes. (05 Mar 2000) |