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Insig2 Insig2 Hsd17b7 Hsd17b7 Soat1 Soat1 Ebp Ebp Insig1 Insig1 Dhcr24 Dhcr24 Cyp46a1 Cyp46a1 Cyp51 Cyp51 Sc5d Sc5d Erg28 Erg28 Cyp7a1 Cyp7a1 Sqle Sqle Cyp7b1 Cyp7b1 Mvd Mvd Sigmar1 Sigmar1 Hmgcr Hmgcr Idi1 Idi1 Cyp27a1 Cyp27a1 Ch25h Ch25h Hmgcs2 Hmgcs2 Pmvk Pmvk Dhcr7 Dhcr7 Scap Scap Tm7sf2 Tm7sf2 Fdft1 Fdft1 Fdps Fdps Mbtps2 Mbtps2 Faxdc2 Faxdc2 D4A242_RAT D4A242_RAT Rgs22 Rgs22 Msmo1 Msmo1 LOC103694120 LOC103694120 Idi2 Idi2 Srebf2 Srebf2 Hsd3b3 Hsd3b3 Mvk Mvk Ccdc160 Ccdc160 RGD1564347 RGD1564347 Lss Lss Nsdhl Nsdhl A0A0G2JYL7_RAT A0A0G2JYL7_RAT Soat2 Soat2 Mbtps1 Mbtps1 Ggps1 Ggps1 Lipa Lipa
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query proteins and first shell of interactors
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second shell of interactors
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proteins of unknown 3D structure
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a 3D structure is known or predicted
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experimentally determined
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Insig2Insulin-induced gene 2 protein; Mediates feedback control of cholesterol synthesis by controlling SCAP and HMGCR. Functions by blocking the processing of sterol regulatory element-binding proteins (SREBPs). Capable of retaining the SCAP-SREBF2 complex in the ER thus preventing it from escorting SREBPs to the Golgi. Seems to regulate the ubiquitin-mediated proteasomal degradation of HMGCR (By similarity). (225 aa)
Hsd17b73-keto-steroid reductase; Responsible for the reduction of the keto group on the C-3 of sterols; Belongs to the short-chain dehydrogenases/reductases (SDR) family. ERG27 subfamily. (335 aa)
Soat1Sterol O-acyltransferase 1; Catalyzes the formation of fatty acid-cholesterol esters. Plays a role in lipoprotein assembly and dietary cholesterol absorption; Belongs to the membrane-bound acyltransferase family. Sterol o-acyltransferase subfamily. (545 aa)
Ebp3-beta-hydroxysteroid-Delta(8),Delta(7)-isomerase; Catalyzes the conversion of Delta(8)-sterols to their corresponding Delta(7)-isomers. (230 aa)
Insig1Insulin-induced gene 1 protein; Mediates feedback control of cholesterol synthesis by controlling SCAP and HMGCR. Functions by blocking the processing of sterol regulatory element-binding proteins (SREBPs). Capable of retaining the SCAP-SREBF2 complex in the ER thus preventing it from escorting SREBPs to the Golgi. Initiates the sterol-mediated ubiquitin- mediated endoplasmic reticulum-associated degradation (ERAD) of HMGCR via recruitment of the reductase to the ubiquitin ligase, AMFR/gp78. May play a role in growth and differentiation of tissues involved in metabolic control. May pla [...] (259 aa)
Dhcr24Delta(24)-sterol reductase; Catalyzes the reduction of the delta-24 double bond of sterol intermediates during cholesterol biosynthesis. In addition to its cholesterol-synthesizing activity, can protects cells from oxidative stress by reducing caspase 3 activity during apoptosis induced by oxidative stress. Also protects against amyloid-beta peptide-induced apoptosis; Belongs to the FAD-binding oxidoreductase/transferase type 4 family. (516 aa)
Cyp46a1Cytochrome P450, family 46, subfamily a, polypeptide 1; Belongs to the cytochrome P450 family. (500 aa)
Cyp51Lanosterol 14-alpha demethylase; A cytochrome P450 monooxygenase involved in sterol biosynthesis. Catalyzes 14-alpha demethylation of lanosterol and 24,25- dihydrolanosterol likely through sequential oxidative conversion of 14- alpha methyl group to hydroxymethyl, then to carboxylaldehyde, followed by the formation of the delta 14,15 double bond in the sterol core and concomitant release of formic acid. Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P45 [...] (503 aa)
Sc5dLathosterol oxidase; Catalyzes a dehydrogenation to introduce C5-6 double bond into lathosterol. (299 aa)
Erg28Similar to HSPC288 (Predicted), isoform CRA_b. (140 aa)
Cyp7a1Cytochrome P450 7A1; A cytochrome P450 monooxygenase involved in the metabolism of endogenous cholesterol and its oxygenated derivatives (oxysterols). Mechanistically, uses molecular oxygen inserting one oxygen atom into a substrate, and reducing the second into a water molecule, with two electrons provided by NADPH via cytochrome P450 reductase (CPR; NADPH-ferrihemoprotein reductase). Functions as a critical regulatory enzyme of bile acid biosynthesis and cholesterol homeostasis. Catalyzes the hydroxylation of carbon hydrogen bond at 7-alpha position of cholesterol, a rate-limiting st [...] (503 aa)
SqleSqualene monooxygenase; Catalyzes the stereospecific oxidation of squalene to (S)- 2,3-epoxysqualene, and is considered to be a rate-limiting enzyme in steroid biosynthesis. (573 aa)
Cyp7b125-hydroxycholesterol 7-alpha-hydroxylase; Oxysterol 7alpha-hydroxylase that mediates formation of 7- alpha,25-dihydroxycholesterol (7-alpha,25-OHC) from 25- hydroxycholesterol. Plays a key role in cell positioning and movement in lymphoid tissues: 7-alpha,25-dihydroxycholesterol (7-alpha,25-OHC) acts as a ligand for the G protein-coupled receptor GPR183/EBI2, a chemotactic receptor for a number of lymphoid cells. (507 aa)
MvdDiphosphomevalonate decarboxylase; Performs the first committed step in the biosynthesis of isoprenes; Belongs to the diphosphomevalonate decarboxylase family. (401 aa)
Sigmar1Sigma non-opioid intracellular receptor 1; Functions in lipid transport from the endoplasmic reticulum and is involved in a wide array of cellular functions probably through regulation of the biogenesis of lipid microdomains at the plasma membrane. Involved in the regulation of different receptors it plays a role in BDNF signaling and EGF signaling. Also regulates ion channels like the potassium channel and could modulate neurotransmitter release. Plays a role in calcium signaling through modulation together with ANK2 of the ITP3R-dependent calcium efflux at the endoplasmic reticulum. [...] (223 aa)
Hmgcr3-hydroxy-3-methylglutaryl-coenzyme A reductase; Transmembrane glycoprotein that is the rate-limiting enzyme in cholesterol biosynthesis as well as in the biosynthesis of nonsterol isoprenoids that are essential for normal cell function including ubiquinone and geranylgeranyl proteins; Belongs to the HMG-CoA reductase family. (887 aa)
Idi1Isopentenyl-diphosphate Delta-isomerase 1; Catalyzes the 1,3-allylic rearrangement of the homoallylic substrate isopentenyl (IPP) to its highly electrophilic allylic isomer, dimethylallyl diphosphate (DMAPP). (283 aa)
Cyp27a1Sterol 26-hydroxylase, mitochondrial; Cytochrome P450 monooxygenase that catalyzes regio- and stereospecific hydroxylation of cholesterol and its derivatives. Hydroxylates (with R stereochemistry) the terminal methyl group of cholesterol side-chain in a three step reaction to yield at first a C26 alcohol, then a C26 aldehyde and finally a C26 acid. Regulates cholesterol homeostasis by catalyzing the conversion of excess cholesterol to bile acids via both the 'neutral' (classic) and the 'acid' (alternative) pathways. May also regulate cholesterol homeostasis via generation of active oxy [...] (550 aa)
Ch25hCholesterol 25-hydroxylase; Catalyzes the formation of 25-hydroxycholesterol from cholesterol, leading to repress cholesterol biosynthetic enzymes. Plays a key role in cell positioning and movement in lymphoid tissues: 25- hydroxycholesterol is an intermediate in biosynthesis of 7-alpha,25- dihydroxycholesterol (7-alpha,25-OHC), an oxysterol that acts as a ligand for the G protein-coupled receptor GPR183/EBI2, a chemotactic receptor for a number of lymphoid cells. May play an important role in regulating lipid metabolism by synthesizing a corepressor that blocks sterol regulatory eleme [...] (298 aa)
Hmgcs2Hydroxymethylglutaryl-CoA synthase, mitochondrial; This enzyme condenses acetyl-CoA with acetoacetyl-CoA to form HMG-CoA, which is the substrate for HMG-CoA reductase. (508 aa)
PmvkPhosphomevalonate kinase. (194 aa)
Dhcr77-dehydrocholesterol reductase; Production of cholesterol by reduction of C7-C8 double bond of 7-dehydrocholesterol (7-DHC). (471 aa)
ScapSterol regulatory element-binding protein cleavage-activating protein; Escort protein required for cholesterol as well as lipid homeostasis. Regulates export of the SCAP/SREBF complex from the ER upon low cholesterol. Formation of a ternary complex with INSIG at high sterol concentrations leads to masking of an ER-export signal in SCAP and retention of the complex in the ER. Low sterol concentrations trigger release of INSIG, a conformational change in the SSC domain of SCAP, unmasking of the ER export signal, recruitment into COPII-coated vesicles, transport to the Golgi complex, prot [...] (1276 aa)
Tm7sf2Transmembrane 7 superfamily member 2. (418 aa)
Fdft1Squalene synthase; Critical branch point enzyme of isoprenoid biosynthesis that is thought to regulate the flux of isoprene intermediates through the sterol pathway. (416 aa)
FdpsFarnesyl pyrophosphate synthase; Key enzyme in isoprenoid biosynthesis which catalyzes the formation of farnesyl diphosphate (FPP), a precursor for several classes of essential metabolites including sterols, dolichols, carotenoids, and ubiquinones. FPP also serves as substrate for protein farnesylation and geranylgeranylation. Catalyzes the sequential condensation of isopentenyl pyrophosphate with the allylic pyrophosphates, dimethylallyl pyrophosphate, and then with the resultant geranylpyrophosphate to the ultimate product farnesyl pyrophosphate (By similarity); Belongs to the FPP/GG [...] (879 aa)
Mbtps2Membrane-bound transcription factor peptidase, site 2. (519 aa)
Faxdc2Fatty acid hydroxylase domain-containing protein; Belongs to the sterol desaturase family. (319 aa)
D4A242_RATInsulin-induced gene protein; Mediates feedback control of cholesterol synthesis. (252 aa)
Rgs22Regulator of G-protein-signaling 22. (1257 aa)
Msmo1Methylsterol monooxygenase 1; Catalyzes the first step in the removal of the two C-4 methyl groups of 4,4-dimethylzymosterol; Belongs to the sterol desaturase family. (293 aa)
LOC103694120Isopentenyl-diphosphate delta-isomerase 2-like. (180 aa)
Idi2Similar to isopentenyl diphosphate delta-isomerase type 2. (227 aa)
Srebf2Processed sterol regulatory element-binding protein 2; Transcriptional activator required for lipid homeostasis. Regulates transcription of the LDL receptor gene as well as the cholesterol and to a lesser degree the fatty acid synthesis pathway (By similarity). Binds the sterol regulatory element 1 (SRE-1) (5'- ATCACCCCAC-3') found in the flanking region of the LDRL and HMG-CoA synthase genes (By similarity); Belongs to the SREBP family. (1133 aa)
Hsd3b3Hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 3; Belongs to the 3-beta-HSD family. (373 aa)
MvkMevalonate kinase; Catalyzes the phosphorylation of mevalonate to mevalonate 5- phosphate, a key step in isoprenoid and cholesterol biosynthesis. Belongs to the GHMP kinase family. Mevalonate kinase subfamily. (395 aa)
Ccdc160Coiled-coil domain-containing 160. (322 aa)
RGD1564347Similar to isopentenyl diphosphate delta-isomerase type 2. (237 aa)
LssLanosterol synthase; Catalyzes the cyclization of (S)-2,3 oxidosqualene to lanosterol, a reaction that forms the sterol nucleus. Through the production of lanosterol may regulate lens protein aggregation and increase transparency; Belongs to the terpene cyclase/mutase family. (733 aa)
NsdhlSterol-4-alpha-carboxylate 3-dehydrogenase, decarboxylating; Involved in the sequential removal of two C-4 methyl groups in post-squalene cholesterol biosynthesis. (362 aa)
A0A0G2JYL7_RATUncharacterized protein; Belongs to the cytochrome P450 family. (149 aa)
Soat2Sterol O-acyltransferase 2; Plays a role in lipoprotein assembly and dietary cholesterol absorption. In addition to its acyltransferase activity, it may act as a ligase. May provide cholesteryl esters for lipoprotein secretion from hepatocytes and intestinal mucosa (By similarity); Belongs to the membrane-bound acyltransferase family. Sterol o-acyltransferase subfamily. (524 aa)
Mbtps1Membrane-bound transcription factor site-1 protease; Serine protease that catalyzes the first step in the proteolytic activation of the sterol regulatory element-binding proteins (SREBPs). Other known substrates are BDNF, GNPTAB and ATF6. Cleaves after hydrophobic or small residues, provided that Arg or Lys is in position P4. Cleaves known substrates after Arg-Ser-Val-Leu (SERBP-2), Arg-His-Leu-Leu (ATF6), Arg-Gly-Leu-Thr (BDNF) and its own propeptide after Arg-Arg-Leu-Leu. Mediates the protein cleavage of GNPTAB into subunit alpha and beta, thereby participating in biogenesis of lysos [...] (1052 aa)
Ggps1Geranylgeranyl pyrophosphate synthase; Catalyzes the trans-addition of the three molecules of IPP onto DMAPP to form geranylgeranyl pyrophosphate, an important precursor of carotenoids and geranylated proteins; Belongs to the FPP/GGPP synthase family. (300 aa)
LipaLysosomal acid lipase/cholesteryl ester hydrolase; Crucial for the intracellular hydrolysis of cholesteryl esters and triglycerides that have been internalized via receptor- mediated endocytosis of lipoprotein particles. Important in mediating the effect of LDL (low density lipoprotein) uptake on suppression of hydroxymethylglutaryl-CoA reductase and activation of endogenous cellular cholesteryl ester formation (By similarity). (397 aa)
Your Current Organism:
Rattus norvegicus
NCBI taxonomy Id: 10116
Other names: Buffalo rat, Norway rat, R. norvegicus, Rattus PC12 clone IS, Rattus sp. strain Wistar, Sprague-Dawley rat, Wistar rats, brown rat, laboratory rat, rat, rats, zitter rats
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