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(E)-5-O-Cinnamoylquinic acid is the isomer of 5-O-Cinnamoylquinic acid. 5-O-Cinnamoylquinic acid is a co-pigment. 5-O-Cinnamoylquinic acid could form the stable blue solution to clarify the mechanism of blue sepal-color development of hydrangea .
(E)-5-Octadecene ((E)-Octadec-5-ene) is a sex pheromone or a related chemical component. (E)-5-Octadecene has effect on destruction of sexual attraction of female moth of rice borers moth (Chilo suppressalis Walker) .
(E)-5-Hydroxyferulic acid is the E-isomer of 5-hydroxyferulic acid (HY-133068). 5-hydroxyferulic acid is a hydroxycinnamic acid and is a metabolite of the phenylpropanoid pathway. 5-Hydroxyferulic acid is a precursor in the biosynthesis of sinapic acid and is also a COMT non-esterifed substrat .
BVDU 5′-Triphosphate is an antivirus agent with 5′-Triphosphate label, targeting viral DNA polymerase. BVDU 5′-Triphosphate shows excellent selectivity against varicella-zoster virus (VZV) and herpes simplex virus type 1 (HSV-1), due to a specific phosphorylation by the virus-encoded thymidine kinase.
BVDU 5′-Triphosphate ammonium is an antivirus agent with 5′-Triphosphate label, targeting viral DNA polymerase. BVDU 5′-Triphosphate ammonium shows excellent selectivity against varicella-zoster virus (VZV) and herpes simplex virus type 1 (HSV-1), due to a specific phosphorylation by the virus-encoded thymidine kinase.
Icariside E5 is a lignan glycoside isolated from the Capsicum annuum. Icariside E5 promotes the proliferation of HUVECs without cytotoxicity. Icariside E5 has antioxidant properties .
hsa-miR-30e-5p mimics are small, chemically synthesized double-stranded RNAs that mimic endogenous miRNAs and enable miRNA functional analysis by up-regulation of miRNA activity.
hsa-miR-518e-5p mimics are small, chemically synthesized double-stranded RNAs that mimic endogenous miRNAs and enable miRNA functional analysis by up-regulation of miRNA activity.
hsa-miR-519e-5p mimics are small, chemically synthesized double-stranded RNAs that mimic endogenous miRNAs and enable miRNA functional analysis by up-regulation of miRNA activity.
hsa-miR-520e-5p mimics are small, chemically synthesized double-stranded RNAs that mimic endogenous miRNAs and enable miRNA functional analysis by up-regulation of miRNA activity.
hsa-miR-548e-5p mimics are small, chemically synthesized double-stranded RNAs that mimic endogenous miRNAs and enable miRNA functional analysis by up-regulation of miRNA activity.
mmu-miR-344e-5p mimics are small, chemically synthesized double-stranded RNAs that mimic endogenous miRNAs and enable miRNA functional analysis by up-regulation of miRNA activity.
mmu-miR-466e-5p mimics are small, chemically synthesized double-stranded RNAs that mimic endogenous miRNAs and enable miRNA functional analysis by up-regulation of miRNA activity.
mmu-miR-467e-5p mimics are small, chemically synthesized double-stranded RNAs that mimic endogenous miRNAs and enable miRNA functional analysis by up-regulation of miRNA activity.
mmu-miR-669e-5p mimics are small, chemically synthesized double-stranded RNAs that mimic endogenous miRNAs and enable miRNA functional analysis by up-regulation of miRNA activity.
hsa-miR-30e-5p inhibitors are chemically-modified oligonucleotides that hybridize with mature miRNAs. The miRNA inhibitors have full-length nucleotide 2'-methoxy modification. The miRNA inhibitors strongly compete with mature miRNAs to prevent the complementary pairing of miRNAs and their target genes, thereby inhibiting miRNAs from functioning.
hsa-miR-518e-5p inhibitors are chemically-modified oligonucleotides that hybridize with mature miRNAs. The miRNA inhibitors have full-length nucleotide 2'-methoxy modification. The miRNA inhibitors strongly compete with mature miRNAs to prevent the complementary pairing of miRNAs and their target genes, thereby inhibiting miRNAs from functioning.
hsa-miR-519e-5p inhibitors are chemically-modified oligonucleotides that hybridize with mature miRNAs. The miRNA inhibitors have full-length nucleotide 2'-methoxy modification. The miRNA inhibitors strongly compete with mature miRNAs to prevent the complementary pairing of miRNAs and their target genes, thereby inhibiting miRNAs from functioning.
hsa-miR-520e-5p inhibitors are chemically-modified oligonucleotides that hybridize with mature miRNAs. The miRNA inhibitors have full-length nucleotide 2'-methoxy modification. The miRNA inhibitors strongly compete with mature miRNAs to prevent the complementary pairing of miRNAs and their target genes, thereby inhibiting miRNAs from functioning.
hsa-miR-548e-5p inhibitors are chemically-modified oligonucleotides that hybridize with mature miRNAs. The miRNA inhibitors have full-length nucleotide 2'-methoxy modification. The miRNA inhibitors strongly compete with mature miRNAs to prevent the complementary pairing of miRNAs and their target genes, thereby inhibiting miRNAs from functioning.
mmu-miR-344e-5p inhibitors are chemically-modified oligonucleotides that hybridize with mature miRNAs. The miRNA inhibitors have full-length nucleotide 2'-methoxy modification. The miRNA inhibitors strongly compete with mature miRNAs to prevent the complementary pairing of miRNAs and their target genes, thereby inhibiting miRNAs from functioning.
mmu-miR-466e-5p inhibitors are chemically-modified oligonucleotides that hybridize with mature miRNAs. The miRNA inhibitors have full-length nucleotide 2'-methoxy modification. The miRNA inhibitors strongly compete with mature miRNAs to prevent the complementary pairing of miRNAs and their target genes, thereby inhibiting miRNAs from functioning.
mmu-miR-467e-5p inhibitors are chemically-modified oligonucleotides that hybridize with mature miRNAs. The miRNA inhibitors have full-length nucleotide 2'-methoxy modification. The miRNA inhibitors strongly compete with mature miRNAs to prevent the complementary pairing of miRNAs and their target genes, thereby inhibiting miRNAs from functioning.
mmu-miR-669e-5p inhibitors are chemically-modified oligonucleotides that hybridize with mature miRNAs. The miRNA inhibitors have full-length nucleotide 2'-methoxy modification. The miRNA inhibitors strongly compete with mature miRNAs to prevent the complementary pairing of miRNAs and their target genes, thereby inhibiting miRNAs from functioning.
(23E)-5b,19-epoxycucurbita-6,23,25(26)-triene-3b-ol is a cucurbitane triterpenoid. (23E)-5b,19-epoxycucurbita-6,23,25(26)-triene-3b-ol can be isolated from the seeds of Momordica charantia L .
hsa-miR-30e-5p agomirs are chemically-modified double-strand miRNA mimics with modified mature miRNA strand: 2 phosphorothioates at the 5' end, 4 phosphorothioates at the 3' end, 3' end cholesterol group, and full-length nucleotide 2'-methoxy modification. They are designed to mimic endogenous miRNAs and recommended for miRNA functional studies. Compared with miRNA mimics, they exhibits enhanced cellular uptake, stability and regulatory activity in vivo.
hsa-miR-518e-5p agomirs are chemically-modified double-strand miRNA mimics with modified mature miRNA strand: 2 phosphorothioates at the 5' end, 4 phosphorothioates at the 3' end, 3' end cholesterol group, and full-length nucleotide 2'-methoxy modification. They are designed to mimic endogenous miRNAs and recommended for miRNA functional studies. Compared with miRNA mimics, they exhibits enhanced cellular uptake, stability and regulatory activity in vivo.
hsa-miR-519e-5p agomirs are chemically-modified double-strand miRNA mimics with modified mature miRNA strand: 2 phosphorothioates at the 5' end, 4 phosphorothioates at the 3' end, 3' end cholesterol group, and full-length nucleotide 2'-methoxy modification. They are designed to mimic endogenous miRNAs and recommended for miRNA functional studies. Compared with miRNA mimics, they exhibits enhanced cellular uptake, stability and regulatory activity in vivo.
hsa-miR-520e-5p agomirs are chemically-modified double-strand miRNA mimics with modified mature miRNA strand: 2 phosphorothioates at the 5' end, 4 phosphorothioates at the 3' end, 3' end cholesterol group, and full-length nucleotide 2'-methoxy modification. They are designed to mimic endogenous miRNAs and recommended for miRNA functional studies. Compared with miRNA mimics, they exhibits enhanced cellular uptake, stability and regulatory activity in vivo.
hsa-miR-548e-5p agomirs are chemically-modified double-strand miRNA mimics with modified mature miRNA strand: 2 phosphorothioates at the 5' end, 4 phosphorothioates at the 3' end, 3' end cholesterol group, and full-length nucleotide 2'-methoxy modification. They are designed to mimic endogenous miRNAs and recommended for miRNA functional studies. Compared with miRNA mimics, they exhibits enhanced cellular uptake, stability and regulatory activity in vivo.
mmu-miR-344e-5p agomirs are chemically-modified double-strand miRNA mimics with modified mature miRNA strand: 2 phosphorothioates at the 5' end, 4 phosphorothioates at the 3' end, 3' end cholesterol group, and full-length nucleotide 2'-methoxy modification. They are designed to mimic endogenous miRNAs and recommended for miRNA functional studies. Compared with miRNA mimics, they exhibits enhanced cellular uptake, stability and regulatory activity in vivo.
mmu-miR-466e-5p agomirs are chemically-modified double-strand miRNA mimics with modified mature miRNA strand: 2 phosphorothioates at the 5' end, 4 phosphorothioates at the 3' end, 3' end cholesterol group, and full-length nucleotide 2'-methoxy modification. They are designed to mimic endogenous miRNAs and recommended for miRNA functional studies. Compared with miRNA mimics, they exhibits enhanced cellular uptake, stability and regulatory activity in vivo.
mmu-miR-467e-5p agomirs are chemically-modified double-strand miRNA mimics with modified mature miRNA strand: 2 phosphorothioates at the 5' end, 4 phosphorothioates at the 3' end, 3' end cholesterol group, and full-length nucleotide 2'-methoxy modification. They are designed to mimic endogenous miRNAs and recommended for miRNA functional studies. Compared with miRNA mimics, they exhibits enhanced cellular uptake, stability and regulatory activity in vivo.
mmu-miR-669e-5p agomirs are chemically-modified double-strand miRNA mimics with modified mature miRNA strand: 2 phosphorothioates at the 5' end, 4 phosphorothioates at the 3' end, 3' end cholesterol group, and full-length nucleotide 2'-methoxy modification. They are designed to mimic endogenous miRNAs and recommended for miRNA functional studies. Compared with miRNA mimics, they exhibits enhanced cellular uptake, stability and regulatory activity in vivo.
hsa-miR-30e-5p antagomirs are chemically-modified oligonucleotides that hybridize with mature miRNAs. The miRNA antagomirs have 2 phosphorothioates at the 5' end, 4 phosphorothioates at the 3' end, 1 cholesterol group at the 3' end, and full-length nucleotide 2'-methoxy modification. The miRNA antagomirs strongly compete with mature miRNAs to prevent the complementary pairing of miRNAs and their target genes, thereby inhibiting miRNAs from functioning. Stability of miRNA antagomirs appears to be significantly higher than miRNA inhibitors, they exhibits enhanced cellular uptake, stability and regulatory activity in vivo.
hsa-miR-518e-5p antagomirs are chemically-modified oligonucleotides that hybridize with mature miRNAs. The miRNA antagomirs have 2 phosphorothioates at the 5' end, 4 phosphorothioates at the 3' end, 1 cholesterol group at the 3' end, and full-length nucleotide 2'-methoxy modification. The miRNA antagomirs strongly compete with mature miRNAs to prevent the complementary pairing of miRNAs and their target genes, thereby inhibiting miRNAs from functioning. Stability of miRNA antagomirs appears to be significantly higher than miRNA inhibitors, they exhibits enhanced cellular uptake, stability and regulatory activity in vivo.
hsa-miR-519e-5p antagomirs are chemically-modified oligonucleotides that hybridize with mature miRNAs. The miRNA antagomirs have 2 phosphorothioates at the 5' end, 4 phosphorothioates at the 3' end, 1 cholesterol group at the 3' end, and full-length nucleotide 2'-methoxy modification. The miRNA antagomirs strongly compete with mature miRNAs to prevent the complementary pairing of miRNAs and their target genes, thereby inhibiting miRNAs from functioning. Stability of miRNA antagomirs appears to be significantly higher than miRNA inhibitors, they exhibits enhanced cellular uptake, stability and regulatory activity in vivo.
hsa-miR-520e-5p antagomirs are chemically-modified oligonucleotides that hybridize with mature miRNAs. The miRNA antagomirs have 2 phosphorothioates at the 5' end, 4 phosphorothioates at the 3' end, 1 cholesterol group at the 3' end, and full-length nucleotide 2'-methoxy modification. The miRNA antagomirs strongly compete with mature miRNAs to prevent the complementary pairing of miRNAs and their target genes, thereby inhibiting miRNAs from functioning. Stability of miRNA antagomirs appears to be significantly higher than miRNA inhibitors, they exhibits enhanced cellular uptake, stability and regulatory activity in vivo.
hsa-miR-548e-5p antagomirs are chemically-modified oligonucleotides that hybridize with mature miRNAs. The miRNA antagomirs have 2 phosphorothioates at the 5' end, 4 phosphorothioates at the 3' end, 1 cholesterol group at the 3' end, and full-length nucleotide 2'-methoxy modification. The miRNA antagomirs strongly compete with mature miRNAs to prevent the complementary pairing of miRNAs and their target genes, thereby inhibiting miRNAs from functioning. Stability of miRNA antagomirs appears to be significantly higher than miRNA inhibitors, they exhibits enhanced cellular uptake, stability and regulatory activity in vivo.
mmu-miR-344e-5p antagomirs are chemically-modified oligonucleotides that hybridize with mature miRNAs. The miRNA antagomirs have 2 phosphorothioates at the 5' end, 4 phosphorothioates at the 3' end, 1 cholesterol group at the 3' end, and full-length nucleotide 2'-methoxy modification. The miRNA antagomirs strongly compete with mature miRNAs to prevent the complementary pairing of miRNAs and their target genes, thereby inhibiting miRNAs from functioning. Stability of miRNA antagomirs appears to be significantly higher than miRNA inhibitors, they exhibits enhanced cellular uptake, stability and regulatory activity in vivo.
mmu-miR-466e-5p antagomirs are chemically-modified oligonucleotides that hybridize with mature miRNAs. The miRNA antagomirs have 2 phosphorothioates at the 5' end, 4 phosphorothioates at the 3' end, 1 cholesterol group at the 3' end, and full-length nucleotide 2'-methoxy modification. The miRNA antagomirs strongly compete with mature miRNAs to prevent the complementary pairing of miRNAs and their target genes, thereby inhibiting miRNAs from functioning. Stability of miRNA antagomirs appears to be significantly higher than miRNA inhibitors, they exhibits enhanced cellular uptake, stability and regulatory activity in vivo.
mmu-miR-467e-5p antagomirs are chemically-modified oligonucleotides that hybridize with mature miRNAs. The miRNA antagomirs have 2 phosphorothioates at the 5' end, 4 phosphorothioates at the 3' end, 1 cholesterol group at the 3' end, and full-length nucleotide 2'-methoxy modification. The miRNA antagomirs strongly compete with mature miRNAs to prevent the complementary pairing of miRNAs and their target genes, thereby inhibiting miRNAs from functioning. Stability of miRNA antagomirs appears to be significantly higher than miRNA inhibitors, they exhibits enhanced cellular uptake, stability and regulatory activity in vivo.
mmu-miR-669e-5p antagomirs are chemically-modified oligonucleotides that hybridize with mature miRNAs. The miRNA antagomirs have 2 phosphorothioates at the 5' end, 4 phosphorothioates at the 3' end, 1 cholesterol group at the 3' end, and full-length nucleotide 2'-methoxy modification. The miRNA antagomirs strongly compete with mature miRNAs to prevent the complementary pairing of miRNAs and their target genes, thereby inhibiting miRNAs from functioning. Stability of miRNA antagomirs appears to be significantly higher than miRNA inhibitors, they exhibits enhanced cellular uptake, stability and regulatory activity in vivo.
(19R,23E)-5b,19-Epoxy19-ethoxycucurbita-6,23-diene-3b,25-diol is a cucurbitane-type triterpenoid. (19R,23E)-5b,19-Epoxy19-ethoxycucurbita-6,23-diene-3b,25-diol has been tested to no effect against 5 cancer cell lines, MCF-7, HepG2, Du145, Colon205 and HL-60 by MTT assay .
Artonin E (5'-Hydroxymorusin) is a known prenylated flavonoid that induces apoptosis and arrests the cell cycle in S phase. Artonin E can induce anti-proliferative effects through mitochondrial pathway dysregulation and can be used in cancer research .
(E)-5-O-Cinnamoylquinic acid is the isomer of 5-O-Cinnamoylquinic acid. 5-O-Cinnamoylquinic acid is a co-pigment. 5-O-Cinnamoylquinic acid could form the stable blue solution to clarify the mechanism of blue sepal-color development of hydrangea .
Icariside E5 is a lignan glycoside isolated from the Capsicum annuum. Icariside E5 promotes the proliferation of HUVECs without cytotoxicity. Icariside E5 has antioxidant properties .
(19R,23E)-5b,19-Epoxy19-ethoxycucurbita-6,23-diene-3b,25-diol is a cucurbitane-type triterpenoid. (19R,23E)-5b,19-Epoxy19-ethoxycucurbita-6,23-diene-3b,25-diol has been tested to no effect against 5 cancer cell lines, MCF-7, HepG2, Du145, Colon205 and HL-60 by MTT assay .
E5 protein maintains host cells in a proliferation-competent state by enhancing host epidermal growth factor receptor (EGFR) activation and inhibiting EGFR internalization. It redistributes host caveolin-1 and glycosphingolipid (ganglioside GM1) to the plasma membrane, potentially facilitating immune evasion and cell proliferation. E5 also interacts with vacuolar H+-ATPase, modulating endosomal pH, and disrupts major histocompatibility class I transport, retaining it in the Golgi. Existing as a homooligomer, E5 interacts with host BCAP31, ATP6V0C, and HLA class I, inhibiting the host immune response. E5 Protein, Human papillomavirus type 16 (Cell-Free, His, GST) is the recombinant Virus-derived E5 protein, expressed by E. coli Cell-free, with N-10*His, C-GST labeled tag. The total length of E5 Protein, Human papillomavirus type 16 (Cell-Free, His, GST) is 83 a.a., with molecular weight of 36.4 kDa.
CD73/5'-Nucleotidase Protein hydrolyzes nucleotide monophosphates, favoring AMP as the primary substrate and showing a preference for ribonucleotide monophosphates. It releases inorganic phosphate and the corresponding nucleoside. CD73 also acts on other substrates, including IMP, UMP, GMP, CMP, dAMP, dCMP, dTMP, NAD, and NMN. CD73/5'-Nucleotidase Protein, Human (Biotinylated, HEK293, His) is the recombinant human-derived CD73/5'-Nucleotidase protein, expressed by HEK293 , with C-His labeled tag. The total length of CD73/5'-Nucleotidase Protein, Human (Biotinylated, HEK293, His) is 521 a.a., with molecular weight of ~59.2 KDa.
CD73/5'-Nucleotidase Protein hydrolyzes nucleotide monophosphates, favoring AMP as the primary substrate and showing a preference for ribonucleotide monophosphates. It releases inorganic phosphate and the corresponding nucleoside. CD73 also acts on other substrates, including IMP, UMP, GMP, CMP, dAMP, dCMP, dTMP, NAD, and NMN. CD73/5'-Nucleotidase Protein, Human (T376A, HEK293, Fc) is the recombinant human-derived CD73/5'-Nucleotidase protein, expressed by HEK293 , with C-hFc labeled tag. The total length of CD73/5'-Nucleotidase Protein, Human (T376A, HEK293, Fc) is 547 a.a., with molecular weight of ~84.5 kDa.
CD97, a receptor crucial for leukocyte migration, participates in adhesion and signaling during early leukocyte activation. Forming a heterodimer with a large extracellular alpha subunit and a seven-transmembrane beta subunit, CD97 interacts with complement decay-accelerating factor (DAF). The largest isoform (isoform 1) specifically engages with chondroitin sulfate, showcasing its diverse roles in cellular processes. CD97 Protein, Human (HEK293, His) is the recombinant human-derived CD97 protein, expressed by HEK293 , with C-His labeled tag. The total length of CD97 Protein, Human (HEK293, His) is 378 a.a., with molecular weight of 60-82 kDa.
CD97, a receptor crucial for leukocyte migration, participates in adhesion and signaling during early leukocyte activation. Forming a heterodimer with a large extracellular alpha subunit and a seven-transmembrane beta subunit, CD97 interacts with complement decay-accelerating factor (DAF). The largest isoform (isoform 1) specifically engages with chondroitin sulfate, showcasing its diverse roles in cellular processes. CD97 Protein, Human (HEK293, hFc) is the recombinant human-derived CD97 protein, expressed by HEK293 , with C-hFc labeled tag. The total length of CD97 Protein, Human (HEK293, hFc) is 378 a.a., with molecular weight of 100-110 kDa.
CD52 protein's multifaceted role includes carrying and orienting carbohydrates, potentially involved in molecular transport and arrangement. Its dual nature suggests versatility in molecular processes, raising questions about its specific contributions. Further exploration into CD52's precise mechanisms and functions, as well as its more specific role, could provide insights into its broader significance. CD52 Protein, Rat (HEK293, Fc) is the recombinant rat-derived CD52 protein, expressed by HEK293 , with C-hFc labeled tag. The total length of CD52 Protein, Rat (HEK293, Fc) is 69 a.a., with molecular weight of 43-60 kDa.
The CD52 protein may play a role in the carriage and targeting of carbohydrates, suggesting its involvement in cellular processes related to carbohydrate transport. Additionally, CD52 may have a more specific role that requires further investigation. CD52 Protein, Human (HEK293, Fc) is the recombinant human-derived CD52 protein, expressed by HEK293 , with C-hFc labeled tag. The total length of CD52 Protein, Human (HEK293, Fc) is 12 a.a., with molecular weight of ~27.9 kDa.
CD52 Protein carries and orients carbohydrates, indicating involvement in molecular transport and arrangement. It also has a specific role that is not fully understood. CD52's versatility prompts further investigation into its mechanisms and contributions. Understanding its targeted role can reveal insights into its functions and broader implications. CD52 Protein, Cynomolgus (HEK293, Fc) is the recombinant cynomolgus-derived CD52 protein, expressed by HEK293 , with C-hFc labeled tag. The total length of CD52 Protein, Cynomolgus (HEK293, Fc) is 35 a.a., with molecular weight of 35-46 KDa.
CD52 protein carries and orients carbohydrates, suggesting involvement in molecular transport and arrangement. Its multifaceted role includes a specific function that is not fully understood. Further exploration into CD52's mechanisms and contributions can shed light on its broader significance. Understanding its targeted role provides valuable insights into its functions and implications. CD52 Protein, Mouse (46a.a, HEK293, Fc) is the recombinant mouse-derived CD52 protein, expressed by HEK293 , with C-hFc labeled tag. The total length of CD52 Protein, Mouse (46a.a, HEK293, Fc) is 46 a.a., with molecular weight of 35-45 kDa.
The CD52 protein may play a role in the carriage and targeting of carbohydrates, suggesting its involvement in cellular processes related to carbohydrate transport. Additionally, CD52 may have a more specific role that requires further investigation. CD52 Protein, Human (Biotinylated, HEK293, Fc-Avi) is the recombinant human-derived CD52 protein, expressed by HEK293 , with C-Avi, C-hFc labeled tag. The total length of CD52 Protein, Human (Biotinylated, HEK293, Fc-Avi) is 12 a.a., with molecular weight of 38-50 kDa.
The CD52 protein may play a role in the carriage and targeting of carbohydrates, suggesting its involvement in cellular processes related to carbohydrate transport. Additionally, CD52 may have a more specific role that requires further investigation. CD52 Protein, Human (His) is the recombinant human-derived CD52 protein, expressed by E. coli , with N-6*His labeled tag. The total length of CD52 Protein, Human (His) is 12 a.a., with molecular weight of ~17 kDa.
ALAS2 Protein catalyzes PLP-dependent condensation of succinyl-CoA and glycine, producing aminolevulinic acid (ALA) with CoA and CO2 by-products. It significantly contributes to heme formation in erythropoiesis, with catalytic activity reaching 75-85% of isoform 1. ALAS2 Protein, Human (His) is the recombinant human-derived ALAS2 protein, expressed by E. coli , with N-6*His labeled tag. The total length of ALAS2 Protein, Human (His) is 538 a.a., with molecular weight of ~63.5 kDa.