choline/ethanolamine kinase catalyzes the transfer of the gamma-phosphoryl group from ATP to choline/ethanolamine to form phosphocholine/phosphoethanolamine, respectively, in the synthesis of phosphatidylcholine or phosphatidylethanolamine
Euykaryotic Ethanolamine kinase; ETNK catalyzes the transfer of the gamma-phosphoryl group ...
148-556
6.35e-116
Euykaryotic Ethanolamine kinase; ETNK catalyzes the transfer of the gamma-phosphoryl group from CTP to ethanolamine (Etn), the first step in the CDP-Etn pathway for the formation of the major phospholipid, phosphatidylethanolamine (PtdEtn). Unlike ChoK, ETNK shows specific activity for its substrate, and displays negligible activity towards N-methylated derivatives of Etn. The Drosophila ETNK is implicated in development and neuronal function. Mammals contain two ETNK proteins, ETNK1 and ETNK2. ETNK1 selectively increases Etn uptake and phosphorylation, as well as PtdEtn synthesis. ETNK2 is found primarily in the liver and reproductive tissues. It plays a critical role in regulating placental hemostasis to support late embryonic development. It may also have a role in testicular maturation. ETNK is part of a larger superfamily that includes the catalytic domains of other kinases, such as the typical serine/threonine/tyrosine protein kinases (PKs), RIO kinases, actin-fragmin kinase (AFK), and phosphoinositide 3-kinase (PI3K).
:
Pssm-ID: 270706 [Multi-domain] Cd Length: 307 Bit Score: 346.49 E-value: 6.35e-116
Choline kinase N terminus; Found N terminal to choline/ethanolamine kinase regions (pfam01633) ...
94-144
3.97e-14
Choline kinase N terminus; Found N terminal to choline/ethanolamine kinase regions (pfam01633) in some plant and fungal choline kinase enzymes (EC:2.7.1.32). This region is only found in some members of the choline kinase family, and is therefore unlikely to contribute to catalysis.
:
Pssm-ID: 367938 Cd Length: 51 Bit Score: 66.76 E-value: 3.97e-14
Euykaryotic Ethanolamine kinase; ETNK catalyzes the transfer of the gamma-phosphoryl group ...
148-556
6.35e-116
Euykaryotic Ethanolamine kinase; ETNK catalyzes the transfer of the gamma-phosphoryl group from CTP to ethanolamine (Etn), the first step in the CDP-Etn pathway for the formation of the major phospholipid, phosphatidylethanolamine (PtdEtn). Unlike ChoK, ETNK shows specific activity for its substrate, and displays negligible activity towards N-methylated derivatives of Etn. The Drosophila ETNK is implicated in development and neuronal function. Mammals contain two ETNK proteins, ETNK1 and ETNK2. ETNK1 selectively increases Etn uptake and phosphorylation, as well as PtdEtn synthesis. ETNK2 is found primarily in the liver and reproductive tissues. It plays a critical role in regulating placental hemostasis to support late embryonic development. It may also have a role in testicular maturation. ETNK is part of a larger superfamily that includes the catalytic domains of other kinases, such as the typical serine/threonine/tyrosine protein kinases (PKs), RIO kinases, actin-fragmin kinase (AFK), and phosphoinositide 3-kinase (PI3K).
Pssm-ID: 270706 [Multi-domain] Cd Length: 307 Bit Score: 346.49 E-value: 6.35e-116
Choline/ethanolamine kinase; Choline kinase catalyzes the committed step in the synthesis of ...
168-437
4.47e-78
Choline/ethanolamine kinase; Choline kinase catalyzes the committed step in the synthesis of phosphatidylcholine by the CDP-choline pathway. This alignment covers the protein kinase portion of the protein. The divergence of this family makes it very difficult to create a model that specifically predicts choline/ethanolamine kinases only. However if [add Pfam ID here for Choline_kinase_C] is also present then it is definitely a member of this family.
Pssm-ID: 396278 [Multi-domain] Cd Length: 211 Bit Score: 245.65 E-value: 4.47e-78
Choline kinase N terminus; Found N terminal to choline/ethanolamine kinase regions (pfam01633) ...
94-144
3.97e-14
Choline kinase N terminus; Found N terminal to choline/ethanolamine kinase regions (pfam01633) in some plant and fungal choline kinase enzymes (EC:2.7.1.32). This region is only found in some members of the choline kinase family, and is therefore unlikely to contribute to catalysis.
Pssm-ID: 367938 Cd Length: 51 Bit Score: 66.76 E-value: 3.97e-14
Euykaryotic Ethanolamine kinase; ETNK catalyzes the transfer of the gamma-phosphoryl group ...
148-556
6.35e-116
Euykaryotic Ethanolamine kinase; ETNK catalyzes the transfer of the gamma-phosphoryl group from CTP to ethanolamine (Etn), the first step in the CDP-Etn pathway for the formation of the major phospholipid, phosphatidylethanolamine (PtdEtn). Unlike ChoK, ETNK shows specific activity for its substrate, and displays negligible activity towards N-methylated derivatives of Etn. The Drosophila ETNK is implicated in development and neuronal function. Mammals contain two ETNK proteins, ETNK1 and ETNK2. ETNK1 selectively increases Etn uptake and phosphorylation, as well as PtdEtn synthesis. ETNK2 is found primarily in the liver and reproductive tissues. It plays a critical role in regulating placental hemostasis to support late embryonic development. It may also have a role in testicular maturation. ETNK is part of a larger superfamily that includes the catalytic domains of other kinases, such as the typical serine/threonine/tyrosine protein kinases (PKs), RIO kinases, actin-fragmin kinase (AFK), and phosphoinositide 3-kinase (PI3K).
Pssm-ID: 270706 [Multi-domain] Cd Length: 307 Bit Score: 346.49 E-value: 6.35e-116
Choline/ethanolamine kinase; Choline kinase catalyzes the committed step in the synthesis of ...
168-437
4.47e-78
Choline/ethanolamine kinase; Choline kinase catalyzes the committed step in the synthesis of phosphatidylcholine by the CDP-choline pathway. This alignment covers the protein kinase portion of the protein. The divergence of this family makes it very difficult to create a model that specifically predicts choline/ethanolamine kinases only. However if [add Pfam ID here for Choline_kinase_C] is also present then it is definitely a member of this family.
Pssm-ID: 396278 [Multi-domain] Cd Length: 211 Bit Score: 245.65 E-value: 4.47e-78
Euykaryotic Choline Kinase; ChoK catalyzes the transfer of the gamma-phosphoryl group from ATP ...
148-486
1.20e-57
Euykaryotic Choline Kinase; ChoK catalyzes the transfer of the gamma-phosphoryl group from ATP (or CTP) to its substrate, choline, producing phosphorylcholine (PCho), a precursor to the biosynthesis of two major membrane phospholipids, phosphatidylcholine (PC) and sphingomyelin (SM). Although choline is the preferred substrate, ChoK also shows substantial activity towards ethanolamine and its N-methylated derivatives. ChoK plays an important role in cell signaling pathways and the regulation of cell growth. Along with PCho, it is involved in malignant transformation through Ras oncogenes in various human cancers such as breast, lung, colon, prostate, neuroblastoma, and hepatic lymphoma. In mammalian cells, there are three ChoK isoforms (A-1, A-2, and B) which are active in homo- or heterodimeric forms. The ChoK subfamily is part of a larger superfamily that includes the catalytic domains of other kinases, such as the typical serine/threonine/tyrosine protein kinases (PKs), RIO kinases, actin-fragmin kinase (AFK), and phosphoinositide 3-kinase (PI3K).
Pssm-ID: 270705 [Multi-domain] Cd Length: 326 Bit Score: 195.92 E-value: 1.20e-57
Euykaryotic Choline Kinase and similar proteins; This group is composed of eukaryotic choline ...
151-484
7.31e-33
Euykaryotic Choline Kinase and similar proteins; This group is composed of eukaryotic choline kinase, ethanolamine kinase, and similar proteins. ChoK catalyzes the transfer of the gamma-phosphoryl group from ATP (or CTP) to its substrate, choline, producing phosphorylcholine (PCho), a precursor to the biosynthesis of two major membrane phospholipids, phosphatidylcholine (PC), and sphingomyelin (SM). Although choline is the preferred substrate, ChoK also shows substantial activity towards ethanolamine and its N-methylated derivatives. ETNK catalyzes the transfer of the gamma-phosphoryl group from CTP to ethanolamine (Etn), the first step in the CDP-Etn pathway for the formation of the major phospholipid, phosphatidylethanolamine (PtdEtn). Unlike ChoK, ETNK shows specific activity for its substrate and displays negligible activity towards N-methylated derivatives of Etn. ChoK plays an important role in cell signaling pathways and the regulation of cell growth. The ChoK subfamily is part of a larger superfamily that includes the catalytic domains of other kinases, such as the typical serine/threonine/tyrosine protein kinases (PKs), RIO kinases, actin-fragmin kinase (AFK), and phosphoinositide 3-kinase (PI3K).
Pssm-ID: 270923 [Multi-domain] Cd Length: 229 Bit Score: 125.84 E-value: 7.31e-33
Choline Kinase and similar proteins; This subfamily is composed of bacterial and eukaryotic ...
149-416
1.43e-18
Choline Kinase and similar proteins; This subfamily is composed of bacterial and eukaryotic choline kinases, as well as eukaryotic ethanolamine kinase. ChoK catalyzes the transfer of the gamma-phosphoryl group from ATP (or CTP) to its substrate, choline, producing phosphorylcholine (PCho), a precursor to the biosynthesis of two major membrane phospholipids, phosphatidylcholine (PC), and sphingomyelin (SM). Although choline is the preferred substrate, ChoK also shows substantial activity towards ethanolamine and its N-methylated derivatives. Bacterial ChoK is also referred to as licA protein. ETNK catalyzes the transfer of the gamma-phosphoryl group from CTP to ethanolamine (Etn), the first step in the CDP-Etn pathway for the formation of the major phospholipid, phosphatidylethanolamine (PtdEtn). Unlike ChoK, ETNK shows specific activity for its substrate and displays negligible activity towards N-methylated derivatives of Etn. ChoK plays an important role in cell signaling pathways and the regulation of cell growth. The ChoK subfamily is part of a larger superfamily that includes the catalytic domains of other kinases, such as the typical serine/threonine/tyrosine protein kinases (PKs), RIO kinases, actin-fragmin kinase (AFK), and phosphoinositide 3-kinase (PI3K).
Pssm-ID: 270700 [Multi-domain] Cd Length: 152 Bit Score: 82.60 E-value: 1.43e-18
Choline kinase N terminus; Found N terminal to choline/ethanolamine kinase regions (pfam01633) ...
94-144
3.97e-14
Choline kinase N terminus; Found N terminal to choline/ethanolamine kinase regions (pfam01633) in some plant and fungal choline kinase enzymes (EC:2.7.1.32). This region is only found in some members of the choline kinase family, and is therefore unlikely to contribute to catalysis.
Pssm-ID: 367938 Cd Length: 51 Bit Score: 66.76 E-value: 3.97e-14
Aminoglycoside 3'-phosphotransferase and Choline Kinase family; This family is composed of APH, ...
370-416
6.01e-03
Aminoglycoside 3'-phosphotransferase and Choline Kinase family; This family is composed of APH, ChoK, ethanolamine kinase (ETNK), macrolide 2'-phosphotransferase (MPH2'), an unusual homoserine kinase, and uncharacterized proteins with similarity to the N-terminal domain of acyl-CoA dehydrogenase 10 (ACAD10). The members of this family catalyze the transfer of the gamma-phosphoryl group from ATP (or CTP) to small molecule substrates such as aminoglycosides, macrolides, choline, ethanolamine, and homoserine. Phosphorylation of the antibiotics, aminoglycosides and macrolides, leads to their inactivation and to bacterial antibiotic resistance. Phosphorylation of choline, ethanolamine, and homoserine serves as precursors to the synthesis of important biological compounds, such as the major phospholipids, phosphatidylcholine and phosphatidylethanolamine and the amino acids, threonine, methionine, and isoleucine. The APH/ChoK family is part of a larger superfamily that includes the catalytic domains of other kinases, such as the typical serine/threonine/tyrosine protein kinases (PKs), RIO kinases, actin-fragmin kinase (AFK), and phosphoinositide 3-kinase (PI3K).
Pssm-ID: 270690 [Multi-domain] Cd Length: 158 Bit Score: 37.67 E-value: 6.01e-03
Database: CDSEARCH/cdd Low complexity filter: no Composition Based Adjustment: yes E-value threshold: 0.01
References:
Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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