Gene Association: ERO1A

UniProt Search: ERO1A (PROTEIN_CODING)
Function Description: endoplasmic reticulum oxidoreductase 1 alpha

found 7 associated metabolites with current gene based on the text mining result from the pubmed database.

Sanchinoside B2

(2R,3S,4S,5R,6R)-2-(hydroxymethyl)-6-[[(3S,5R,6S,8R,9R,10R,12R,13R,14R,17S)-4,4,8,10,14-pentamethyl-17-[(2S)-6-methyl-2-oxidanyl-hept-5-en-2-yl]-3,12-bis(oxidanyl)-2,3,5,6,7,9,11,12,13,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-6-yl]oxy]oxane-3,4,5-

C36H62O9 (638.4394)


(20S)-ginsenoside Rh1 is a tetracyclic triterpenoid that is (20S)-protopanaxadiol which is substituted by beta-D-glucoside at the 6alpha position. It has a role as a plant metabolite. It is a beta-D-glucoside, a 12beta-hydroxy steroid, a tetracyclic triterpenoid, a ginsenoside, a 3beta-hydroxy steroid and a 3beta-hydroxy-4,4-dimethylsteroid. It derives from a hydride of a dammarane. Ginsenoside Rh1 is a natural product found in Panax vietnamensis, Panax ginseng, and other organisms with data available. A tetracyclic triterpenoid that is (20S)-protopanaxadiol which is substituted by beta-D-glucoside at the 6alpha position. Ginsenoside Rh1 (Prosapogenin A2) inhibits the expression of PPAR-γ, TNF-α, IL-6, and IL-1β. Ginsenoside Rh1 (Prosapogenin A2) inhibits the expression of PPAR-γ, TNF-α, IL-6, and IL-1β. Ginsenoside Rh1 (Prosapogenin A2) inhibits the expression of PPAR-γ, TNF-α, IL-6, and IL-1β.

   

sulfurein

(2Z)-2-[[3,4-bis(oxidanyl)phenyl]methylidene]-6-oxidanyl-1-benzofuran-3-one

C15H10O5 (270.0528)


Sulfuretin is a member of 1-benzofurans. Sulfuretin is a natural product found in Calanticaria bicolor, Dipteryx lacunifera, and other organisms with data available. Sulfuretin inhibits the inflammatory response by suppressing the NF-κB pathway. Sulfuretin can be used for the research of allergic airway inflammation. Sulfuretin reduces oxidative stress, platelet aggregation, and mutagenesis[1]. Sulfuretin is a competitive and potent inhibitor of monophenolase and diphenolase activities with the IC50 of 13.64 μM[2]. Sulfuretin inhibits the inflammatory response by suppressing the NF-κB pathway. Sulfuretin can be used for the research of allergic airway inflammation. Sulfuretin reduces oxidative stress, platelet aggregation, and mutagenesis[1]. Sulfuretin is a competitive and potent inhibitor of monophenolase and diphenolase activities with the IC50 of 13.64 μM[2].

   

Nα-Acetyl-L-lysine

(2S)-6-(Acetylamino)-2-aminohexanoic acid

C8H16N2O3 (188.1161)


N-epsilon-Acetyl-L-lysine also known as Nepsilon-Acetyllysine or N6-Acetyllysine, belongs to the class of organic compounds known as N-acyl-alpha amino acids. N-acyl-alpha amino acids are compounds containing an alpha amino acid which bears an acyl group at one of its nitrogen atoms. N-epsilon-Acetyl-L-lysine can also be classified as an alpha amino acid or a derivatized alpha amino acid. Technically, N-epsilon-Acetyl-L-lysine is a biologically available sidechain, N-capped form of the proteinogenic alpha amino acid L-lysine. Unlike L-lysine, acetylated lysine derivatives such as N-epsilon-Acetyl-L-lysine are zwitterionic compounds. These are molecules that contains an equal number of positively- and negatively-charged functional groups. N-epsilon-Acetyl-L-lysine is found naturally in eukaryotes ranging from yeast to plants to humans. N-acetyl amino acids can be produced either via direct synthesis of specific N-acetyltransferases or via the proteolytic degradation of N-acetylated proteins (often histones) by specific hydrolases. N-epsilon-Acetyl-L-lysine can be biosynthesized from L-lysine and acetyl-CoA via the enzyme known as Lysine N-acetyltransferase. Post-translational lysine-acetylation is one of two major modifications of lysine residues in various proteins – either N-terminal or N-alpha acetylation or N6 (sidechain) acetylation. Side-chain acetylation of specific lysine residues in the N-terminal domains of core histones is a biochemical marker of active genes. Acetylation is now known to play a major role in eukaryotic transcription. Specifically, acetyltransferase enzymes that act on particular lysine side chains of histones and other proteins are intimately involved in transcriptional activation. By modifying chromatin proteins and transcription-related factors, these acetylases are believed to regulate the transcription of many genes. The best-characterized mechanism is acetylation, catalyzed by histone acetyltransferase (HAT) enzymes. HATs function enzymatically by transferring an acetyl group from acetyl-coenzyme A (acetyl-CoA) to the amino group of certain lysine side chains within a histones basic N-terminal tail region. Within a histone octamer, these regions extend out from the associated globular domains, and in the context of a nucleosome, they are believed to bind the DNA through charge interactions (positively charged histone tails associated with negatively charged DNA) or mediate interactions between nucleosomes. Lysine acetylation, which neutralizes part of a tail regions positive charge, is postulated to weaken histone-DNA or nucleosome-nucleosome interactions and/or signal a conformational change, thereby destabilizing nucleosome structure or arrangement and giving other nuclear factors, such as the transcription complex, more access to a genetic locus. In agreement with this is the fact that acetylated chromatin has long been associated with states of transcriptional activation. Specific recognition of N6-acetyl-L-lysine is a conserved function of all bromodomains found in different proteins, recognized as an emerging intracellular signalling mechanism that plays critical roles in regulating gene transcription, cell-cycle progression, apoptosis, DNA repair, and cytoskeletal organization (PMID: 9169194 , 10827952 , 17340003 , 16247734 , 9478947 , 10839822 ). N-acetylated amino acids, such as N-epsilon-Acetyl-L-lysine can be released by an N-acylpeptide hydrolase from histones going through proteolytic degradation (PMID: 16465618). Many N-acetylamino acids are classified as uremic toxins if present in high abundance in the serum or plasma (PMID: 26317986; PMID: 20613759). Uremic toxins are a diverse group of endogenously produced molecules that, if not properly cleared or eliminated by the kidneys, can cause kidney damage, cardiovascular disease and neurological deficits (PMID: 18287557). Isolated from sugarbeet (Beta vulgaris) KEIO_ID A174 Nepsilon-Acetyl-L-lysine is a derivative of the amino acid lysine.

   

Vitamin K1 2,3-epoxide

(1aS,7aR)-1a-methyl-7a-[(2E,7R,11R)-3,7,11,15-tetramethylhexadec-2-en-1-yl]-1aH,2H,7H,7aH-naphtho[2,3-b]oxirene-2,7-dione

C31H46O3 (466.3447)


Vitamin K1 2,3-epoxide (CAS: 25486-55-9) is a vitamin K derivative. Vitamin K is needed for the posttranslational modification of certain proteins, mostly required for blood coagulation. Within the cell, vitamin K undergoes electron reduction to a reduced form of vitamin K (called vitamin K hydroquinone) by the enzyme vitamin K epoxide reductase (or VKOR). Another enzyme then oxidizes vitamin K hydroquinone to allow carboxylation of glutamate into gamma-carboxyglutamate (Gla). This enzyme is called the gamma-glutamyl carboxylase or the vitamin K-dependent carboxylase. The carboxylation reaction will only proceed if the carboxylase enzyme is able to oxidize vitamin K hydroquinone into vitamin K epoxide at the same time; the carboxylation and epoxidation reactions are said to be coupled reactions. Vitamin K epoxide is then re-converted into vitamin K by the vitamin K epoxide reductase. These two enzymes comprise the so-called vitamin K cycle. One of the reasons why vitamin K is rarely deficient in a human diet is because vitamin K is continually recycled in our cells. Vitamin K 2,3-epoxide is the substrate for vitamin K 2,3-epoxide reductase (VKOR) complex. Significantly increased level of serum vitamin K epoxide has been found in patients with familial multiple coagulation factor deficiency (PMID: 12384421). Accumulation of vitamin K1-2,3-epoxide in plasma is also a sensitive marker of the coumarin-like activity of drugs (PMID: 2401753). Vitamin K1 2,3-epoxide is a vitamin K derivative. Vitamin K needed for the posttranslational modification of certain proteins, mostly required for blood coagulation. Within the cell, Vitamin K undergoes electron reduction to a reduced form of Vitamin K (called Vitamin K hydroquinone) by the enzyme Vitamin K epoxide reductase (or VKOR). Another enzyme then oxidizes Vitamin K hydroquinone to allow carboxylation of Glutamate to Gamma-cabroxygluatmate (Gla); this enzyme is called the gamma-glutamyl carboxylase or the Vitamin K-dependent carboxylase. The carboxylation reaction will only proceed if the carboxylase enzyme is able to oxidize Vitamin K hydroquinone to vitamin K epoxide at the same time; the carboxylation and epoxidation reactions are said to be coupled reactions. Vitamin K epoxide is then re-converted to Vitamin K by the Vitamin K epoxide reductase. These two enzymes comprise the so-called Vitamin K cycle. One of the reasons why Vitamin K is rarely deficient in a human diet is because Vitamin K is continually recycled in our cells. Vitamin K 2,3-epoxide is the substrate for vitamin K 2,3-epoxide reductase (VKOR) complex. Significantly increased level of serum vitamin K epoxide has been found in patients with familial multiple coagulation factor deficiency. (PMID 12384421) Accumulation of vitamin K1-2,3-epoxide in plasma is also a sensitive marker of coumarin-like activity of drugs. (PMID 2401753) [HMDB]

   

2,3-Epoxyphylloquinone

Naphth[2,3-b]oxirene-2,7-dione, 1a,7a-dihydro-1a-methyl-7a-(3,7,11,15-tetramethyl-2-hexadecenyl)-phylloquinone oxide

C31H46O3 (466.3447)


Vitamin K1 2,3-epoxide is a vitamin K derivative. Vitamin K needed for the posttranslational modification of certain proteins, mostly required for blood coagulation. Within the cell, Vitamin K undergoes electron reduction to a reduced form of Vitamin K (called Vitamin K hydroquinone) by the enzyme Vitamin K epoxide reductase (or VKOR). Another enzyme then oxidizes Vitamin K hydroquinone to allow carboxylation of Glutamate to Gamma-cabroxygluatmate (Gla); this enzyme is called the gamma-glutamyl carboxylase or the Vitamin K-dependent carboxylase. The carboxylation reaction will only proceed if the carboxylase enzyme is able to oxidize Vitamin K hydroquinone to vitamin K epoxide at the same time; the carboxylation and epoxidation reactions are said to be coupled reactions. Vitamin K epoxide is then re-converted to Vitamin K by the Vitamin K epoxide reductase. These two enzymes comprise the so-called Vitamin K cycle. One of the reasons why Vitamin K is rarely deficient in a human diet is because Vitamin K is continually recycled in our cells. Vitamin K 2,3-epoxide is the substrate for vitamin K 2,3-epoxide reductase (VKOR) complex. Significantly increased level of serum vitamin K epoxide has been found in patients with familial multiple coagulation factor deficiency. (PMID 12384421) Accumulation of vitamin K1-2,3-epoxide in plasma is also a sensitive marker of coumarin-like activity of drugs. (PMID 2401753) [HMDB]

   

sulfurein

(2Z)-2-[[3,4-bis(oxidanyl)phenyl]methylidene]-6-oxidanyl-1-benzofuran-3-one

C15H10O5 (270.0528)


Sulfuretin is a member of 1-benzofurans. Sulfuretin is a natural product found in Calanticaria bicolor, Dipteryx lacunifera, and other organisms with data available. Sulfuretin inhibits the inflammatory response by suppressing the NF-κB pathway. Sulfuretin can be used for the research of allergic airway inflammation. Sulfuretin reduces oxidative stress, platelet aggregation, and mutagenesis[1]. Sulfuretin is a competitive and potent inhibitor of monophenolase and diphenolase activities with the IC50 of 13.64 μM[2]. Sulfuretin inhibits the inflammatory response by suppressing the NF-κB pathway. Sulfuretin can be used for the research of allergic airway inflammation. Sulfuretin reduces oxidative stress, platelet aggregation, and mutagenesis[1]. Sulfuretin is a competitive and potent inhibitor of monophenolase and diphenolase activities with the IC50 of 13.64 μM[2].

   

N6-acetyl-L-lysine

N(6)-acetyl-L-lysine

C8H16N2O3 (188.1161)


An N(6)-acyl-L-lysine where the N(6)-acyl group is specified as acetyl. MS2 deconvoluted using MS2Dec from all ion fragmentation data, MetaboLights identifier MTBLS1040; DTERQYGMUDWYAZ-ZETCQYMHSA-N_STSL_0232_N-epsilon-Acetyl-L-lysine (N6)_8000fmol_190114_S2_LC02MS02_018; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. MS2 deconvoluted using CorrDec from all ion fragmentation data, MetaboLights identifier MTBLS1040; Spectrum acquired as described in Naz et al 2017 PMID 28641411. Preparation and submission to MassBank of North America by Chaleckis R. and Tada I. Nepsilon-Acetyl-L-lysine is a derivative of the amino acid lysine.