4OLI

The pseudokinase/kinase protein from JAK-family member TYK2


ChainDomainClassArchitectureTopologyHomology
A3.30.200.20 Alpha Beta 2-Layer Sandwich Phosphorylase Kinase domain 1
A1.10.510.10 Mainly Alpha Orthogonal Bundle Transferase(Phosphotransferase) domain 1
A3.30.200.20 Alpha Beta 2-Layer Sandwich Phosphorylase Kinase domain 1
A1.10.510.10 Mainly Alpha Orthogonal Bundle Transferase(Phosphotransferase) domain 1

Protein Family Annotation Pfam Database Homepage

ChainsAccessionIdentifierDescriptionCommentsSource
APF18377FERM F2 acyl-CoA binding protein-like domain (FERM_F2)FERM F2 acyl-CoA binding protein-like domainThis is an F2 lobe domain consisting of an acyl-CoA binding protein fold found in FERM region of Jak-family tyrosine kinases [1]. Multidomain JAK molecules interact with receptors through their FERM and SH2-like domains, triggering a series of phosph ...This is an F2 lobe domain consisting of an acyl-CoA binding protein fold found in FERM region of Jak-family tyrosine kinases [1]. Multidomain JAK molecules interact with receptors through their FERM and SH2-like domains, triggering a series of phosphorylation events, resulting in the activation of their kinase domains [2]. Overall, the FERM region maintains the typical three-lobed architecture, with an F1 lobe consisting of a ubiquitin-like fold, an F2 lobe consisting of an acyl-CoA binding protein fold, and an F3 lobe consisting of a pleckstrin-homology (PH) fold. JAK1 FERM-F2 domain has been shown to act as the interaction site for the IFNLR1 box1 motif (PxxLxF) of class II cytokine receptors which is essential for kinase activation [3].
Domain
APF17887Jak1 pleckstrin homology-like domain (Jak1_Phl)Jak1 pleckstrin homology-like domainThis entry is for the pleckstrin homology-like (PHL) subdomain found in Jak1 proteins. JAK1 is a member of the Janus kinase (JAK) family of non-receptor tyrosine kinases that are activated in response to cytokines and interferons. PHL (residues 283-4 ...This entry is for the pleckstrin homology-like (PHL) subdomain found in Jak1 proteins. JAK1 is a member of the Janus kinase (JAK) family of non-receptor tyrosine kinases that are activated in response to cytokines and interferons. PHL (residues 283-419) together with the N-terminal ubiquitin-like subdomain (residues 36-111) and an acyl-coenzyme A binding protein-like subdomain (residues 148-282), associate into a canonical tri-lobed FERM domain [1].
Domain
APF18379FERM F1 ubiquitin-like domain (FERM_F1)FERM F1 ubiquitin-like domainThis is an F1 lobe domain consisting of a ubiquitin like fold found in FERM region of Jak-family tyrosine kinases [1]. Multidomain JAK molecules interact with receptors through their FERM and SH2-like domains, triggering a series of phosphorylation e ...This is an F1 lobe domain consisting of a ubiquitin like fold found in FERM region of Jak-family tyrosine kinases [1]. Multidomain JAK molecules interact with receptors through their FERM and SH2-like domains, triggering a series of phosphorylation events, resulting in the activation of their kinase domains [2]. Overall, the FERM region maintains the typical three-lobed architecture, with an F1 lobe consisting of a ubiquitin-like fold, an F2 lobe consisting of an acyl-CoA binding protein fold, and an F3 lobe consisting of a pleckstrin-homology (PH) fold [3].
Domain
APF07714Protein tyrosine and serine/threonine kinase (PK_Tyr_Ser-Thr)Protein tyrosine and serine/threonine kinaseProtein phosphorylation, which plays a key role in most cellular activities, is a reversible process mediated by protein kinases and phosphoprotein phosphatases. Protein kinases catalyse the transfer of the gamma phosphate from nucleotide triphosp ...Protein phosphorylation, which plays a key role in most cellular activities, is a reversible process mediated by protein kinases and phosphoprotein phosphatases. Protein kinases catalyse the transfer of the gamma phosphate from nucleotide triphosphates (often ATP) to one or more amino acid residues in a protein substrate side chain, resulting in a conformational change affecting protein function. Phosphoprotein phosphatases catalyse the reverse process. Protein kinases fall into three broad classes, characterised with respect to substrate specificity [1]; Serine/threonine-protein kinases, tyrosine-protein kinases, and dual specificity protein kinases (e.g. MEK - phosphorylates both Thr and Tyr on target proteins). This entry represents the catalytic domain found in a number of serine/threonine- and tyrosine-protein kinases. It does not include the catalytic domain of dual specificity kinases.
Domain