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*  Protein metabolism
Histidine Lysine Negatively charged side chains Aspartic acid Glutamic acid Polar uncharged side chains Serine Threonine ...
*  Amino acid kinase
In prokaryotes and plants the synthesis of the essential amino acids lysine and threonine is predominantly regulated by feed- ... and lysC encode aspartokinase isozymes that show feedback inhibition by threonine, methionine, and lysine, respectively. The ...
*  Protein primary structure
Typically, the hydroxyl group of a serine (rarely, threonine) or the thiol group of a cysteine residue will attack the carbonyl ... A phosphate group can be attached to the sidechain hydroxyl group of serine, threonine and tyrosine residues, adding a negative ...
*  Threonine
... is metabolized in two ways: In many animals it is converted to pyruvate via threonine dehydrogenase. An intermediate ... In addition, threonine residues undergo phosphorylation through the action of a threonine kinase. In its phosphorylated form, ... In humans the gene for threonine dehydrogenase is an inactive pseudogene, so threonine it is converted to α-ketobutyrate. The ... "dl-Threonine". Organic Syntheses. 20: 101. ; Collective Volume, 3, p. 813 . Threonine biosynthesis CID 205 CID 6288. ...
*  Threonine synthase
In enzymology, a threonine synthase (EC 4.2.3.1) is an enzyme that catalyzes the chemical reaction O-phospho-L-homoserine + H2O ... The systematic name of this enzyme class is O-phospho-L-homoserine phosphate-lyase (adding water L-threonine-forming). Other ... FLAVIN M, SLAUGHTER C (1960). "Purification and properties of threonine synthetase of Neurospora". J. Biol. Chem. 235: 1103-8. ... serine and threonine metabolism and vitamin B6 metabolism. It employs one cofactor, pyridoxal phosphate. As of late 2007, 7 ...
*  Threonine aldolase
In enzymology, a threonine aldolase (EC 4.1.2.5) is an enzyme that catalyzes the chemical reaction L-threonine ⇌ {\displaystyle ... This enzyme is also called L-threonine acetaldehyde-lyase. This enzyme participates in glycine, serine and threonine metabolism ... Alasdair J Edgar (2005) Mice have a transcribed L-threonine aldolase/GLY1 gene, but the human GLY1 gene is a non-processed ... KARASEK MA, GREENBERG DM (1957). "Studies on the properties of threonine aldolases". J. Biol. Chem. 227 (1): 191-205. PMID ...
*  Threonine protease
... s are a family of proteolytic enzymes harbouring a threonine (Thr) residue within the active site. The ... Threonine proteases use the secondary alcohol of their N-terminal threonine as a nucleophile to perform catalysis. The ... threonine must be N-terminal since the terminal amine of the same residue acts as a general base by polarising an ordered water ...
*  Threonine racemase
D-threonine Hence, this enzyme has one substrate, L-threonine, and one product, D-threonine. This enzyme belongs to the family ... In enzymology, a threonine racemase (EC 5.1.1.6) is an enzyme that catalyzes the chemical reaction L-threonine ⇌ {\displaystyle ... The systematic name of this enzyme class is threonine racemase. Amos H (1954). "A racemase for threonine in Escherichia coli". ...
*  L-threonine dehydrogenase
... is an enzyme that facilitates the catabolism of threonine. It catalyses its conversion to glycine via ... Edgar AJ (October 2002). "The human L-threonine 3-dehydrogenase gene is an expressed pseudogene". BMC Genet. 3: 18. doi:10.1186 ... Epperly BR, Dekker EE (April 1991). "L-threonine dehydrogenase from Escherichia coli. Identification of an active site cysteine ...
*  Threonine operon leader
The threonine operon leader is an RNA element. Threonine is one of at least 6 amino acid operons are known to be regulated by ... Page for Threonine operon leader at Rfam. ...
*  D-threonine aldolase
... (EC 4.1.2.42, D-TA, DTA, low specificity D-TA, low specificity D-threonine aldolase) is an enzyme with ... D-threonine aldolase at the US National Library of Medicine Medical Subject Headings (MeSH) Molecular and Cellular Biology ... Liu, J.Q.; Dairi, T.; Itoh, N.; Kataoka, M.; Shimizu, S.; Yamada, H. (2000). "Diversity of microbial threonine aldolases and ... "Threonine aldolase and alanine racemase: novel examples of convergent evolution in the superfamily of vitamin B6-dependent ...
*  L-threonine kinase
... (EC 2.7.1.177, PduX) is an enzyme with systematic name ATP:L-threonine O3-phosphotransferase. This enzyme ... L-threonine kinase at the US National Library of Medicine Medical Subject Headings (MeSH) Molecular and Cellular Biology portal ... Fan, C.; Bobik, T.A. (2008). "The PduX enzyme of Salmonella enterica is an L-threonine kinase used for coenzyme B12 synthesis ... Fan, C.; Fromm, H.J.; Bobik, T.A. (2009). "Kinetic and functional analysis of L-threonine kinase, the PduX enzyme of Salmonella ...
*  Threonine-phosphate decarboxylase
In enzymology, a threonine-phosphate decarboxylase (EC 4.1.1.81) is an enzyme that catalyzes the chemical reaction L-threonine ... Other names in common use include L-threonine-O-3-phosphate decarboxylase, CobD, and L-threonine-O-3-phosphate carboxy-lyase. ... The systematic name of this enzyme class is L-threonine-O-3-phosphate carboxy-lyase [(R)-1-aminopropan-2-yl-phosphate-forming ... Cheong CG, Bauer CB, Brushaber KR, Escalante-Semerena JC, Rayment I (2002). "Three-dimensional structure of the L-threonine-O-3 ...
*  Threonine ammonia-lyase
... , also commonly referred to as threonine deaminase or threonine dehydratase, is an enzyme responsible ... Threonine ammonia-lyase is a member of the Fold Type II family, also known as the tryptophan synthase family. Though threonine ... UMBARGER, HE.; BROWN, B. (Jan 1957). "Threonine deamination in Escherichia coli. II. Evidence for two L-threonine deaminases". ... the threonine deamination capabilities of the enzyme go unchecked. This degrades threonine before the herbivore can absorb it, ...
*  Threonine-tRNA ligase
... threonine-transfer ribonucleate synthetase, threonine translase, threonyl-tRNA synthetase, and TARS. Threonine-tRNA ligase ( ... In enzymology, a threonine-tRNA ligase (EC 6.1.1.3) is an enzyme that catalyzes the chemical reaction ATP + L-threonine + tRNA( ... L-threonine, and threonine-specific transfer RNA [tRNA(Thr)], whereas its three products are AMP, diphosphate, and L-threonyl- ... It is an homodimeric enzyme that aminoacylates tRNA(Thr) with the amino acid threonine. In addition, TARS has the ability to ...
*  L-threonine 3-dehydrogenase
Other names in common use include L-threonine dehydrogenase, threonine 3-dehydrogenase, and threonine dehydrogenase. This ... In enzymology, a L-threonine 3-dehydrogenase (EC 1.1.1.103) is an enzyme that catalyzes the chemical reaction L-threonine + ... Green ML, Elliott WH (1964). "The enzymic formation of aminoacetone from threonine and its further metabolism". Biochem. J. 92 ... Hartshorne D, Greenberg DM (1964). "Studies on liver threonine dehydrogenase". Arch. Biochem. Biophys. 105: 173-8. doi:10.1016/ ...
*  Serine/threonine kinase 35
... is a protein that in humans is encoded by the STK35 gene. The protein encoded by this gene is a ... Serine/threonine kinase 35". Retrieved 2012-02-18. Vallenius, T.; Mäkelä, T. P. (2002). "Clik1: A novel kinase targeted to ...
*  Protein serine/threonine phosphatase
... is a form of phosphoprotein phosphatase that acts upon phosphorylated serine/threonine residues. Serine and threonine ... Serine and threonine are amino acids which have similar side-chain compositions that contain a hydroxyl group and thus can be ... The addition of the phosphate group can be reversed by enzymes called serine/threonine phosphatases. The addition and removal ... "Serine/threonine phosphatases: mechanism through structure". Cell. 139 (3): 468-84. doi:10.1016/j.cell.2009.10.006. PMID ...
*  4-Fluoro-L-threonine
... is an antibacterial made by Streptomyces cattleya. It is formed by the fluorothreonine transaldolase ... Murphy CD, O'Hagan D, Schaffrath C (2001). "Identification of a PLP-Dependent Threonine Transaldolase: A Novel Enzyme Involved ...
*  Homoserine/threonine resistance transporter
The original text was at "2.A.76 The Resistance to Homoserine/Threonine (RhtB) Family". Tsu, Brian V.; Saier, Milton H. (2015- ... The resistance to homoserine/threonine (RhtB) family (TC# 2.A.76) belongs to the lysine exporter (LysE) superfamily of ...
*  L-allo-threonine aldolase
The enzyme is specific for L-allo-threonine and can not act on the more common L-threonine. It is different from EC 4.1.2.5 (L- ... threonine aldolase) and EC 4.1.2.48 (less specific enzyme that acts on both L-threonine and L-allo-threonine). A previously ... L-allo-threonine aldolase (GLY1, EC 4.1.2.49) is an enzyme catalyzing the conversion between L-allo-threonine (unusual ... Hence L-allo-threonine aldolase provides the alternative pathway for cellular glycine when serine hydroxymethyltransferase is ...
*  ATM serine/threonine kinase
... , symbol ATM, is a serine/threonine protein kinase that is recruited and activated by DNA double- ...
*  Fas-activated serine/threonine kinase
Fas-activated serine/threonine protein] ⇌ {\displaystyle \rightleftharpoons } ADP + [Fas-activated serine/threonine ... In enzymology, a Fas-activated serine/threonine kinase (EC 2.7.11.8) is an enzyme that catalyzes the chemical reaction ATP + [ ... Tian Q, Taupin J, Elledge S, Robertson M, Anderson P (1995). "Fas-activated serine/threonine kinase (FAST) phosphorylates TIA-1 ... The systematic name of this enzyme class is ATP:[Fas-activated serine/threonine protein] phosphotransferase. Other names in ...
*  Low-specificity L-threonine aldolase
... (EC 4.1.2.48, LtaE) is an enzyme with systematic name L-threonine/L-allo-threonine ... cerevisiae encodes a low-specific L-threonine aldolase that catalyzes cleavage of L-allo-threonine and L-threonine to glycine- ... Low-specificity L-threonine aldolase at the US National Library of Medicine Medical Subject Headings (MeSH) Molecular and ... Yamada, H.; Kumagai, H.; Nagate, T.; Yoshida, H. (1970). "Crystalline threonine aldolase from Candida humicola". Biochem. ...
*  Receptor protein serine/threonine kinase
... receptor type II serine/threonine protein kinase, STK13, TGF-beta kinase, and receptor serine/threonine protein kinase. This ... In enzymology, a receptor protein serine/threonine kinase (EC 2.7.11.30) is an enzyme that catalyzes the chemical reaction ATP ... Other names in common use include activin receptor kinase, receptor type I serine/threonine protein kinase, ... to be specific those transferring phosphorus-containing groups protein-serine/threonine kinases. The systematic name of this ...