thromboxane A2 receptor [Mus musculus]
Protein Classification
G protein-coupled receptor family protein( domain architecture ID 705710)
G protein-coupled receptor family protein is a seven-transmembrane G protein-coupled receptor (7TM-GPCR) family protein which typically transmits an extracellular signal into the cell by the conformational rearrangement of the 7TM helices and by the subsequent binding and activation of an intracellular heterotrimeric G protein; GPCR ligands include light-sensitive compounds, odors, pheromones, hormones, and neurotransmitters
List of domain hits
| Name | Accession | Description | Interval | E-value | |||||
| 7tm_GPCRs super family | cl28897 | seven-transmembrane G protein-coupled receptor superfamily; This hierarchical evolutionary ... |
25-317 | 1.08e-145 | |||||
seven-transmembrane G protein-coupled receptor superfamily; This hierarchical evolutionary model represents the seven-transmembrane (7TM) receptors, often referred to as G protein-coupled receptors (GPCRs), which transmit physiological signals from the outside of the cell to the inside via G proteins. GPCRs constitute the largest known superfamily of transmembrane receptors across the three kingdoms of life that respond to a wide variety of extracellular stimuli including peptides, lipids, neurotransmitters, amino acids, hormones, and sensory stimuli such as light, smell and taste. All GPCRs share a common structural architecture comprising of seven-transmembrane (TM) alpha-helices interconnected by three extracellular and three intracellular loops. A general feature of GPCR signaling is agonist-induced conformational changes in the receptors, leading to activation of the heterotrimeric G proteins, which consist of the guanine nucleotide-binding G-alpha subunit and the dimeric G-beta-gamma subunits. The activated G proteins then bind to and activate numerous downstream effector proteins, which generate second messengers that mediate a broad range of cellular and physiological processes. However, some 7TM receptors, such as the type 1 microbial rhodopsins, do not activate G proteins. Based on sequence similarity, GPCRs can be divided into six major classes: class A (the rhodopsin-like family), class B (the Methuselah-like, adhesion and secretin-like receptor family), class C (the metabotropic glutamate receptor family), class D (the fungal mating pheromone receptors), class E (the cAMP receptor family), and class F (the frizzled/smoothened receptor family). Nearly 800 human GPCR genes have been identified and are involved essentially in all major physiological processes. Approximately 40% of clinically marketed drugs mediate their effects through modulation of GPCR function for the treatment of a variety of human diseases including bacterial infections. The actual alignment was detected with superfamily member cd15143: Pssm-ID: 475119 [Multi-domain] Cd Length: 296 Bit Score: 413.06 E-value: 1.08e-145
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| Name | Accession | Description | Interval | E-value | |||||
| 7tmA_TXA2_R | cd15143 | thromboxane A2 receptor, member of the class A family of seven-transmembrane G protein-coupled ... |
25-317 | 1.08e-145 | |||||
thromboxane A2 receptor, member of the class A family of seven-transmembrane G protein-coupled receptors; The thromboxane receptor, also known as the prostanoid TP receptor, is a class A G-protein coupled receptor whose endogenous ligand is thromboxane A2 (TXA2). TXA2 is the major product of cyclooxygenase metabolite of arachidonic acid that found predominantly in platelets and stimulates platelet aggregation, Ca2+ influx into platelets, and also causes vasoconstriction. TXA2 has been shown to be involved in immune regulation, angiogenesis and metastasis, among many others. Activation of TXA2 receptor is coupled to G(q) and G(13), resulting in the activations of phospholipase C and RhoGEF, respectively. TXA2 receptor is widely distributed in the body and is abundantly expressed in thymus and spleen. Pssm-ID: 320271 [Multi-domain] Cd Length: 296 Bit Score: 413.06 E-value: 1.08e-145
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| 7tm_1 | pfam00001 | 7 transmembrane receptor (rhodopsin family); This family contains, amongst other ... |
42-305 | 9.10e-22 | |||||
7 transmembrane receptor (rhodopsin family); This family contains, amongst other G-protein-coupled receptors (GCPRs), members of the opsin family, which have been considered to be typical members of the rhodopsin superfamily. They share several motifs, mainly the seven transmembrane helices, GCPRs of the rhodopsin superfamily. All opsins bind a chromophore, such as 11-cis-retinal. The function of most opsins other than the photoisomerases is split into two steps: light absorption and G-protein activation. Photoisomerases, on the other hand, are not coupled to G-proteins - they are thought to generate and supply the chromophore that is used by visual opsins. Pssm-ID: 459624 [Multi-domain] Cd Length: 256 Bit Score: 92.75 E-value: 9.10e-22
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| Name | Accession | Description | Interval | E-value | |||||
| 7tmA_TXA2_R | cd15143 | thromboxane A2 receptor, member of the class A family of seven-transmembrane G protein-coupled ... |
25-317 | 1.08e-145 | |||||
thromboxane A2 receptor, member of the class A family of seven-transmembrane G protein-coupled receptors; The thromboxane receptor, also known as the prostanoid TP receptor, is a class A G-protein coupled receptor whose endogenous ligand is thromboxane A2 (TXA2). TXA2 is the major product of cyclooxygenase metabolite of arachidonic acid that found predominantly in platelets and stimulates platelet aggregation, Ca2+ influx into platelets, and also causes vasoconstriction. TXA2 has been shown to be involved in immune regulation, angiogenesis and metastasis, among many others. Activation of TXA2 receptor is coupled to G(q) and G(13), resulting in the activations of phospholipase C and RhoGEF, respectively. TXA2 receptor is widely distributed in the body and is abundantly expressed in thymus and spleen. Pssm-ID: 320271 [Multi-domain] Cd Length: 296 Bit Score: 413.06 E-value: 1.08e-145
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| 7tmA_Prostanoid_R | cd14981 | G protein-coupled receptors for prostanoids, member of the class A family of ... |
25-317 | 4.83e-84 | |||||
G protein-coupled receptors for prostanoids, member of the class A family of seven-transmembrane G protein-coupled receptors; Prostanoids are the cyclooxygenase (COX) metabolites of arachidonic acid, which include the prostaglandins (PGD2, PGE2, PGF2alpha), prostacyclin (PGI2), and thromboxane A2 (TxA2). These five major bioactive prostanoids acts as mediators or modulators in a wide range of physiological and pathophysiological processes within the kidney and play important roles in inflammation, platelet aggregation, and vasoconstriction/relaxation, among many others. They act locally by preferentially interacting with G protein-coupled receptors designated DP, EP. FP, IP, and TP, respectively. The phylogenetic tree suggests that the prostanoid receptors can be grouped into two major branches: G(s)-coupled (DP1, EP2, EP4, and IP) and G(i)- (EP3) or G(q)-coupled (EP1, FP, and TP), forming three clusters. Pssm-ID: 320112 [Multi-domain] Cd Length: 288 Bit Score: 256.02 E-value: 4.83e-84
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| 7tmA_PGE2_EP1 | cd15144 | prostaglandin E2 receptor EP1 subtype, member of the class A family of seven-transmembrane G ... |
26-316 | 3.25e-64 | |||||
prostaglandin E2 receptor EP1 subtype, member of the class A family of seven-transmembrane G protein-coupled receptors; Prostaglandin E2 receptor EP1, also called prostanoid EP1 receptor, is one of four receptor subtypes whose endogenous physiological ligand is prostaglandin E2 (PGE2). Each of these subtypes (EP1-EP4) have unique but overlapping tissue distributions that activate different intracellular signaling pathways. It has been shown that stimulation of the EP1 receptor by PGE2 causes smooth muscle contraction and increased intracellular Ca2+ levels; however, it is still unclear whether EP1 receptor is exclusively coupled to G(q/11), which leading to activation of phospholipase C and phosphatidylinositol hydrolysis. Prostanoids are the cyclooxygenase (COX) metabolites of arachidonic acid, which include the prostaglandins (PGD2, PGE2, PGF2alpha), prostacyclin (PGI2), and thromboxane A2 (TxA2). These five major bioactive prostanoids acts as mediators or modulators in a wide range of physiological and pathophysiological processes within the kidney and play important roles in inflammation, platelet aggregation, and vasoconstriction/relaxation, among many others. They act locally by preferentially interacting with G protein-coupled receptors designated DP, EP. FP, IP, and TP, respectively. The phylogenetic tree suggests that the prostanoid receptors can be grouped into two major branches: G(s)-coupled (DP1, EP2, EP4, and IP) and G(i)- (EP3) or G(q)-coupled (EP1, FP, and TP), forming three clusters. Pssm-ID: 320272 [Multi-domain] Cd Length: 294 Bit Score: 205.39 E-value: 3.25e-64
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| 7tmA_FP | cd15145 | prostaglandin F2-alpha receptor, member of the class A family of seven-transmembrane G ... |
27-317 | 9.48e-58 | |||||
prostaglandin F2-alpha receptor, member of the class A family of seven-transmembrane G protein-coupled receptors; The PGF2-alpha receptor, also called prostanoid FP receptor, is a class A G-protein coupled receptor whose endogenous ligand is prostaglandin F2-alpha. PGF2-alpha binding to this receptor is coupled to the stimulation of phospholipase C (PLC) pathway via G-protein subunit G(q). This leads to the release of inositol trisphosphate (IP3) and diacylglycerol (DAG) which results in increased intracellular Ca2+ levels and activation of PKC. The receptor activation primarily induces uterine contraction and bronchoconstriction, and stimulates luteolysis. Like most prostanoid receptors, the PGF2-alpha receptor has also been implicated in tumor angiogenesis and metastasis. Pssm-ID: 320273 [Multi-domain] Cd Length: 290 Bit Score: 188.49 E-value: 9.48e-58
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| 7tmA_PGE2_EP3 | cd15146 | prostaglandin E2 receptor EP3 subtype, member of the class A family of seven-transmembrane G ... |
59-315 | 4.51e-41 | |||||
prostaglandin E2 receptor EP3 subtype, member of the class A family of seven-transmembrane G protein-coupled receptors; Prostaglandin E2 receptor EP3, also called prostanoid EP3 receptor, is one of four receptor subtypes whose endogenous physiological ligand is prostaglandin E2 (PGE2). Each of these subtypes (EP1-EP4) have unique but overlapping tissue distributions that activate different intracellular signaling pathways. Stimulation of the EP3 receptor by PGE2 preferentially couples to G(i) protein. This leads to a decrease in adenylate cyclase activity, thereby decreasing cAMP levels, which subsequently produces smooth muscle contraction. Knockout mice studies suggest that the EP3 receptor may act as a systemic vasopressor. Prostanoids are the cyclooxygenase (COX) metabolites of arachidonic acid, which include the prostaglandins (PGD2, PGE2, PGF2alpha), prostacyclin (PGI2), and thromboxane A2 (TxA2). These five major bioactive prostanoids acts as mediators or modulators in a wide range of physiological and pathophysiological processes within the kidney and play important roles in inflammation, platelet aggregation, and vasoconstriction/relaxation, among many others. They act locally by preferentially interacting with G protein-coupled receptors designated DP, EP. FP, IP, and TP, respectively. The phylogenetic tree suggests that the prostanoid receptors can be grouped into two major branches: G(s)-coupled (DP1, EP2, EP4, and IP) and G(i)- (EP3) or G(q)-coupled (EP1, FP, and TP), forming three clusters. Pssm-ID: 320274 [Multi-domain] Cd Length: 308 Bit Score: 145.79 E-value: 4.51e-41
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| 7tmA_PGE2_EP2 | cd15139 | prostaglandin E2 receptor EP2 subtype, member of the class A family of seven-transmembrane G ... |
26-316 | 8.85e-25 | |||||
prostaglandin E2 receptor EP2 subtype, member of the class A family of seven-transmembrane G protein-coupled receptors; Prostaglandin E2 receptor EP2, also called prostanoid EP2 receptor, is one of four receptor subtypes whose endogenous physiological ligand is prostaglandin E2 (PGE2). Each of these subtypes (EP1-EP4) have unique but overlapping tissue distributions that activate different intracellular signaling pathways. Stimulation of the EP2 receptor by PGE2 causes cAMP accumulation through G(s) protein activation, which subsequently produces smooth muscle relaxation and mediates the systemic vasodepressor response to PGE2. Prostanoids are the cyclooxygenase (COX) metabolites of arachidonic acid, which include the prostaglandins (PGD2, PGE2, PGF2alpha), prostacyclin (PGI2), and thromboxane A2 (TxA2). These five major bioactive prostanoids acts as mediators or modulators in a wide range of physiological and pathophysiological processes within the kidney and play important roles in inflammation, platelet aggregation, and vasoconstriction/relaxation, among many others. They act locally by preferentially interacting with G protein-coupled receptors designated DP, EP. FP, IP, and TP, respectively. The phylogenetic tree suggests that the prostanoid receptors can be grouped into two major branches: G(s)-coupled (DP1, EP2, EP4, and IP) and G(i)- (EP3) or G(q)-coupled (EP1, FP, and TP), forming three clusters. Pssm-ID: 320267 [Multi-domain] Cd Length: 299 Bit Score: 101.78 E-value: 8.85e-25
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| 7tmA_PGI2 | cd15141 | prostaglandin I2 receptor, member of the class A family of seven-transmembrane G ... |
38-316 | 3.50e-24 | |||||
prostaglandin I2 receptor, member of the class A family of seven-transmembrane G protein-coupled receptors; Prostaglandin I2 receptor (also called prostacyclin receptor or prostanoid IP receptor) is a class A, G protein-coupled receptor whose endogenous ligand is prostacyclin, which is the major product of cyclooxygenase metabolite of arachidonic acid that found predominantly in platelets and vascular smooth muscle cells (VSMCs). The PGI2 receptor is coupled to both G(s) and G(q) protein subtypes, resulting in increased cAMP formation, phosphoinositide turnover, and Ca2+ signaling. PGI2 receptor activation by prostacyclin induces VSMC differentiation and produces a potent vasodilation and inhibition of platelet aggregation. Pssm-ID: 320269 [Multi-domain] Cd Length: 301 Bit Score: 100.28 E-value: 3.50e-24
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| 7tmA_PGE2_EP4 | cd15142 | prostaglandin E2 receptor EP4 subtype, member of the class A family of seven-transmembrane G ... |
36-316 | 3.86e-24 | |||||
prostaglandin E2 receptor EP4 subtype, member of the class A family of seven-transmembrane G protein-coupled receptors; Prostaglandin E2 receptor EP4, also called prostanoid EP4 receptor, is one of four receptor subtypes whose endogenous physiological ligand is prostaglandin E2 (PGE2). Each of these subtypes (EP1-EP4) have unique but overlapping tissue distributions that activate different intracellular signaling pathways. Like the EP2 receptor, stimulation of the EP4 receptor by PGE2 causes cAMP accumulation through G(s) protein activation. Knockout studies in mice suggest that EP4 receptor may be involved in the maintenance of bone mass and fracture healing. Prostanoids are the cyclooxygenase (COX) metabolites of arachidonic acid, which include the prostaglandins (PGD2, PGE2, PGF2alpha), prostacyclin (PGI2), and thromboxane A2 (TxA2). These five major bioactive prostanoids acts as mediators or modulators in a wide range of physiological and pathophysiological processes within the kidney and play important roles in inflammation, platelet aggregation, and vasoconstriction/relaxation, among many others. They act locally by preferentially interacting with G protein-coupled receptors designated DP, EP. FP, IP, and TP, respectively. The phylogenetic tree suggests that the prostanoid receptors can be grouped into two major branches: G(s)-coupled (DP1, EP2, EP4, and IP) and G(i)- (EP3) or G(q)-coupled (EP1, FP, and TP), forming three clusters. Pssm-ID: 320270 [Multi-domain] Cd Length: 302 Bit Score: 100.27 E-value: 3.86e-24
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| 7tm_1 | pfam00001 | 7 transmembrane receptor (rhodopsin family); This family contains, amongst other ... |
42-305 | 9.10e-22 | |||||
7 transmembrane receptor (rhodopsin family); This family contains, amongst other G-protein-coupled receptors (GCPRs), members of the opsin family, which have been considered to be typical members of the rhodopsin superfamily. They share several motifs, mainly the seven transmembrane helices, GCPRs of the rhodopsin superfamily. All opsins bind a chromophore, such as 11-cis-retinal. The function of most opsins other than the photoisomerases is split into two steps: light absorption and G-protein activation. Photoisomerases, on the other hand, are not coupled to G-proteins - they are thought to generate and supply the chromophore that is used by visual opsins. Pssm-ID: 459624 [Multi-domain] Cd Length: 256 Bit Score: 92.75 E-value: 9.10e-22
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| 7tmA_PGD2 | cd15140 | prostaglandin D2 receptor, member of the class A family of seven-transmembrane G ... |
36-314 | 1.03e-15 | |||||
prostaglandin D2 receptor, member of the class A family of seven-transmembrane G protein-coupled receptors; Prostaglandin D2 receptor (also called prostanoid DP receptor, DP1, or PGD2R1) is a G-protein coupled receptor whose endogenous ligand is prostaglandin D2 (PGD2). PGD2, the major cyclooxygenase metabolite of arachidonic acid produced by mast cells, mediates inflammatory reactions in response to allergen challenge and causes peripheral vasodilation. PGD2 exerts its biological effects by binding to two types of cell surface receptors: a DP1 receptor that belongs to the prostanoid receptor family and a chemoattractant receptor-homologous molecule expressed on the T-helper type 2 cells (CRTH2 or PD2R2). Pssm-ID: 320268 [Multi-domain] Cd Length: 312 Bit Score: 76.47 E-value: 1.03e-15
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| 7tmA_Opsins_type2_animals | cd14969 | type 2 opsins in animals, member of the class A family of seven-transmembrane G ... |
30-274 | 1.79e-07 | |||||
type 2 opsins in animals, member of the class A family of seven-transmembrane G protein-coupled receptors; This rhodopsin family represents the type 2 opsins found in vertebrates and invertebrates except sponge. Type 2 opsins primarily function as G protein coupled receptors and are responsible for vision as well as for circadian rhythm and pigment regulation. On the contrary, type 1 opsins such as bacteriorhodopsin and proteorhodopsin are found in both prokaryotic and eukaryotic microbes, functioning as light-gated ion channels, proton pumps, sensory receptors and in other unknown functions. Although these two opsin types share seven-transmembrane domain topology and a conserved lysine reside in the seventh helix, type 1 opsins do not activate G-proteins and are not evolutionarily related to type 2. Type 2 opsins can be classified into six distinct subfamilies including the vertebrate opsins/encephalopsins, the G(o) opsins, the G(s) opsins, the invertebrate G(q) opsins, the photoisomerases, and the neuropsins. Pssm-ID: 381741 [Multi-domain] Cd Length: 284 Bit Score: 51.82 E-value: 1.79e-07
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| 7tm_classA_rhodopsin-like | cd00637 | rhodopsin receptor-like class A family of the seven-transmembrane G protein-coupled receptor ... |
35-308 | 2.13e-07 | |||||
rhodopsin receptor-like class A family of the seven-transmembrane G protein-coupled receptor superfamily; Class A rhodopsin-like receptors constitute about 90% of all GPCRs. The class A GPCRs include the light-sensitive rhodopsin as well as receptors for biogenic amines, lipids, nucleotides, odorants, peptide hormones, and a variety of other ligands. All GPCRs have a common structural architecture comprising of seven-transmembrane (TM) alpha-helices interconnected by three extracellular and three intracellular loops. A general feature of GPCR signaling is agonist-induced conformational changes in the receptors, leading to activation of the heterotrimeric G proteins, which consist of the guanine nucleotide-binding G-alpha subunit and the dimeric G-beta-gamma subunits. The activated G proteins then bind to and activate numerous downstream effector proteins, which generate second messengers that mediate a broad range of cellular and physiological processes. Based on sequence similarity, GPCRs can be divided into six major classes: class A (rhodopsin-like family), class B (Methuselah-like, adhesion and secretin-like receptor family), class C (metabotropic glutamate receptor family), class D (fungal mating pheromone receptors), class E (cAMP receptor family), and class F (frizzled/smoothened receptor family). Nearly 800 human GPCR genes have been identified and are involved essentially in all major physiological processes. Approximately 40% of clinically marketed drugs mediate their effects through modulation of GPCR function for the treatment of a variety of human diseases including bacterial infections. Pssm-ID: 410626 [Multi-domain] Cd Length: 275 Bit Score: 51.52 E-value: 2.13e-07
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| 7tmA_Angiotensin_R-like | cd14985 | angiotesin receptor family and its related G protein-coupled receptors, member of the class A ... |
28-158 | 1.16e-03 | |||||
angiotesin receptor family and its related G protein-coupled receptors, member of the class A family of seven-transmembrane G protein-coupled receptors; This group includes the angiotensin receptors, the bradykinin receptors, apelin receptor as well as putative G-protein coupled receptors (GPR15 and GPR25). Angiotensin II (Ang II), the main effector in the renin-angiotensin system, plays a crucial role in the regulation of cardiovascular homeostasis through its type 1 (AT1) and type 2 (AT2) receptors. Ang II contributes to cardiovascular diseases such as hypertension and atherosclerosis via AT1R activation. Ang II increases blood pressure through Gq-mediated activation of phospholipase C, resulting in phosphoinositide (PI) hydrolysis and increased intracellular calcium levels. Through the AT2 receptor, Ang II counteracts the vasoconstrictor action of AT1R and thereby induces vasodilation, sodium excretion, and reduction of blood pressure. Bradykinins (BK) are pro-inflammatory peptides that mediate various vascular and pain responses to tissue injury through its B1 and B2 receptors. Apelin (APJ) receptor binds the endogenous peptide ligands, apelin and Toddler/Elabela. APJ is an adipocyte-derived hormone that is ubiquitously expressed throughout the human body, and Toddler/Elabela is a short secretory peptide that is required for normal cardiac development in zebrafish. Activation of APJ receptor plays key roles in diverse physiological processes including vasoconstriction and vasodilation, cardiac muscle contractility, angiogenesis, and regulation of water balance and food intake. Orphan receptors, GPR15 and GPR25, share strong sequence homology to the angiotensin II type AT1 and AT2 receptors. Pssm-ID: 341320 [Multi-domain] Cd Length: 284 Bit Score: 40.05 E-value: 1.16e-03
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| 7tmA_GPRnna14-like | cd15001 | GPRnna14 and related proteins, member of the class A family of seven-transmembrane G ... |
37-260 | 7.87e-03 | |||||
GPRnna14 and related proteins, member of the class A family of seven-transmembrane G protein-coupled receptors; This group includes the orphan G-protein coupled receptor GPRnna14 found in body louse (Pediculus humanus humanus) as well as its closely related proteins of unknown function. These receptors are members of the class A rhodopsin-like G-protein coupled receptors. As an obligatory parasite of humans, the body louse is an important vector for human diseases, including epidemic typhus, relapsing fever, and trench fever. GPRnna14 shares significant sequence similarity with the members of the neurotensin receptor family. All GPCRs have a common structural architecture comprising of seven-transmembrane (TM) alpha-helices interconnected by three extracellular and three intracellular loops. A general feature of GPCR signaling is agonist-induced conformational changes in the receptors, leading to activation of the heterotrimeric G proteins, which consist of the guanine nucleotide-binding G-alpha subunit and the dimeric G-beta-gamma subunits. The activated G proteins then bind to and activate numerous downstream effector proteins, which generate second messengers that mediate a broad range of cellular and physiological processes. Pssm-ID: 320132 [Multi-domain] Cd Length: 266 Bit Score: 37.64 E-value: 7.87e-03
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