n-linked

Tunicamycin 是一种抗生素的混合物，通过阻断 GlcNAc 磷酸转移酶 (GPT)，抑制 N-连接糖基化。Tunicamycin 具有抗肿瘤活性，还具有抗细菌、抗真菌和抗病毒活性。

1-Deoxymannojirimycin hydrochloride 是一种选择性的 α1,2-甘露糖苷酶抑制剂，IC50值为 20 μM。它还抑制 HIV-1 毒株，抗病毒活性较差。

OSMI-1 是一种 O-GlcNAc 转移酶 (OGT) 抑制剂 (IC50=2.7 μM)，具有口服活性和细胞渗透性。OSMI-1 可以抑制蛋白质 O-GlcNA 酰化，而不会定性地改变细胞表面 N- 或 O- 连接的聚糖。

OGT inhibitor 4a 是一种O-连接 n-乙酰氨基葡萄糖转移酶（OGT）抑制剂，具有抗癌活性，可用于研究自身免疫疾病和神经系统疾病。

Chitosan (MW 150000) (Deacetylated chitin) 是衍生自几丁质的聚阳离子线性多糖。它无毒，具有低致敏性，生物相容性和可生物降解性。它还具有抗肿瘤，抗细菌，抗真菌和抗氧化活性。

N-Acetyl-L-arginine (Ac-Arg-OH) 是一种胍基诺化合物，被发现存在于血液渗析性肾不足儿童患者血清中的。

OSMI-2 is a cell-permeable inhibitor of O-linked N-acetylglucosamine transferase (OGT).

PMPA sodium is a potent and selective glutamate carboxypeptidase 2 (GCP II N-acetylated a-linked dipeptidase NAALADase) inhibitor.

A 601 is a lipid A analog derived from N-acylated serine-linked nonphosphorylated acylglucosamine.

Oxysophoridine (Sophoridine N-oxide) 是从苦豆子中提取的一种生物碱，具有抗发炎，抗氧化应激和抗凋亡的作用。

BACE-IN-1 acetate (BACE-IN-1 acetate (350228-37-4，Free base)) 已被用作 BACE1 抑制剂测定中的 β 位淀粉样前体蛋白 (APP) 裂解酶-1 (BACE1) 抑制剂。 β-位点淀粉样前体蛋白 (APP) 切割酶-1 (BACE1)是一种天冬氨酸蛋白酶，属于蛋白酶家族，由六个腔内半胱氨酸残基组成。这些残基有助于形成三个分子间二硫键和 N-连接的糖基化位点。

Histone H2B (108-125) is a peptide fragment of histone H2B that corresponds to amino acid residues 109-126 of the human histone H2B sequence. It contains an N-terminal biotinylated lysine followed by a tryptophan linker. Histone H2B can be modified by addition of an O-linked N-acetylglucosamine (GlcNAc) moiety to the serine residue at position 112, which promotes monoubiquitination of the lysine at position 120.1 Both of these modifications are associated with active transcription. Histone H2B also has lysine residues at positions 108, 116, and 120 that are subject to acetylation.2References1. Fujiki, R., Hashiba, W., Sekine, H., et al. GlcNAcylation of histone H2B facilitates its monoubiquitination. Nature 480(7378), 557-560 (2011).2. Portela, A., and Esteller, M. Epigenetic modifications and human disease. Nat. Biotechnol. 28(10), 1057-1068 (2010). Histone H2B (108-125) is a peptide fragment of histone H2B that corresponds to amino acid residues 109-126 of the human histone H2B sequence. It contains an N-terminal biotinylated lysine followed by a tryptophan linker. Histone H2B can be modified by addition of an O-linked N-acetylglucosamine (GlcNAc) moiety to the serine residue at position 112, which promotes monoubiquitination of the lysine at position 120.1 Both of these modifications are associated with active transcription. Histone H2B also has lysine residues at positions 108, 116, and 120 that are subject to acetylation.2 References1. Fujiki, R., Hashiba, W., Sekine, H., et al. GlcNAcylation of histone H2B facilitates its monoubiquitination. Nature 480(7378), 557-560 (2011).2. Portela, A., and Esteller, M. Epigenetic modifications and human disease. Nat. Biotechnol. 28(10), 1057-1068 (2010).

The acyl amides are a family of endogenous lipids that act as potent modulators of pain and inflammation. The best characterized members of this family are the arachidonoyl amides, which includes N-arachidonoyl ethanolamide (AEA; anandamide). N-palmitoyl glycine (PalGly) contains an 18-carbon saturated fatty acid that is amide-linked to glycine and is structurally similar to the phospholipid-derived N-acyl ethanolamines. Endogenously produced in rat skin and spinal cord, PalGly is present in 100-fold greater amounts in skin and 3-fold greater in brain compared to AEA. Injection of 0.43 μg PalGly in rat hindpaw inhibits heat-induced firing of nociceptive neurons in rat dorsal horn. PalGly treatment induces transient calcium influx in native dorsal root ganglion (DRG) cells and in the PTX-sensitive, DRG-like cell line F-11 (EC50 = 5.5 μM).

N-Acylated ethanolamines (NAE) are naturally-occurring lipids that have diverse bioactivities. The different types of NAE can be derived from glycerophospho-linked precursors by the activity of glycerophosphodiesterase 1 (GDE1). Glycerophospho-N-arachidonoyl ethanolamine is the precursor of arachidonoyl ethanolamide (AEA), also known as anandamide. AEA is an endogenous cannabinoid neurotransmitter that binds to both central cannabinoid (CB1) and peripheral cannabinoid (CB2) receptors. It inhibits the specific binding of [3H]-HU-243 to synaptosomal membranes with a Ki value of 52 nM, compared to 46 nM for δ9-THC.

N-Acylated ethanolamines (NAE) are naturally-occurring lipids that have diverse bioactivities. For example, arachidonoyl ethanolamide (AEA) is an endogenous neurotransmitter that evokes cellular responses by activating the cannabinoid receptors, central cannabinoid (CB1) and peripheral cannabinoid (CB2). The different types of NAE are derived from glycerophospho-linked precursors by the activity of glycerophosphodiesterase 1 (GDE1). Glycerophospho-N-palmitoyl ethanolamine (GP-NPEA) is the metabolic precursor of palmitoyl ethanolamide (PEA). PEA is an endogenous cannabinoid found in brain, liver, and other mammalian tissues, that has potent anti-inflammatory activity in vivo. PEA has low affinity for peripheral cannabinoid (CB2) and no appreciable affinity for central cannabinoid (CB1), suggesting that its efficacy is through a different receptor.

4-(N-Boc-amino)piperidine is an organic building block.1,2It has been used in the synthesis of aminopiperidine antiviral chemokine (C-C motif) receptor 5 (CCR5) antagonists and antibacterial agents. 1.Burrows, J.N., Cumming, J.G., Fillery, S.M., et al.Modulators of the human CCR5 receptor. Part 1: Discovery and initial SAR of 1-(3,3-diphenylpropyl)-piperidinyl amides and ureasBioorg. Med. Chem. Lett.15(1)25-28(2005) 2.Reck, F., Alm, R., Brassil, P., et al.Novel N-linked aminopiperidine inhibitors of bacterial topoisomerase type II: Broad-spectrum antibacterial agents with reduced hERG activityJ. Med. Chem.54(22)7834-7847(2011)

N,N'-Diacetylchitobiose, a dimer of β(1,4) linked N-acetyl-D glucosamine, is derived from the hydrolysis of chitin. This compound serves as an alternative carbon source for E. coli.

(Rac)-OSMI-1 是 OSMI-1 的外消旋体。其中 OSMI-1 是 O-GlcNAc 转移酶 (OGT) 抑制剂 (IC50: 2.7 μM)。OSMI-1 对哺乳动物细胞系中的蛋白 O-连接的 N-乙酰氨基葡萄糖 (O-GlcNAcylation) 具有抑制作用，且不会定性地改变细胞表面 N-或 O-连接的聚糖。

N-acetyl-α-d-glucosamine 1-phosphate disodium (GlcNAc-1-P) 为异位糖磷酸盐，关键中间体于N-糖蛋白生物合成。该化合物同时作为细菌细胞壁组分磷胆酸和鼠胺的代谢前体。

PNGase F 是一种糖苷酶，可催化寡糖中内部糖苷键的裂解。PNGase F 可从糖蛋白中去除几乎所有的 N-连接寡糖。

S-(N-Methylsulfinylbutylthiocarbamoyl)-L-cysteine (SFN-Cys) 是一种异硫氰酸酯衍生物及第一类和第二类组蛋白去乙酰化酶（HDAC）抑制剂和抗癌剂硫代硫酸烯醇醚的活性代谢产物。它通过巯基乙酸途径酶从硫代硫酸烯醇醚经DL-硫代硫酸烯醇醚谷胱甘肽和硫代硫酸烯醇醚半胱氨酸甘肽中间体形成。SFN-Cys (20 µM) 通过创伤愈合和腔室分析实验，分别减少了U87MG和U373 MG胶质母细胞瘤细胞的侵袭和迁移。在45 µM的浓度下，它降低了对紫杉醇耐药的A549肺癌细胞（A549/T）中的α-微管蛋白、βIII-微管蛋白、司他敏1和X连锁抑制剂的凋亡（XIAP）的水平，并减少了细胞密度。使用30 µM浓度的SFN-Cys诱导U87MG和U373 MG细胞凋亡和G2/M期细胞周期停滞。

Immunoglobulin M heavy chain (IGHM) fragment [Homo sapiens] is a fragment (Gly-Val-Ala-Leu-His-Arg-Pro-Asp-Val-Tyr-Leu-Leu-Pro-Pro-Ala-Arg) on the human immunoglobulin micro heavy chain. Immunoglobulins (Ig) are the antigen recognition molecules of B cell

Sialyllacto-N-neohexaose II 是一种用于糖生物学研究的生化试剂。糖生物学专注于研究糖的结构、合成、生物学和进化过程，涉及碳水化合物化学、聚糖的生成与降解酶学、蛋白质-聚糖识别以及聚糖在生物系统中扮演的角色。此领域与基础研究、生物医学及生物技术紧密相连。

Trifucosyllacto-N-hexaose 是一种用于糖生物学研究的生化试剂。糖生物学研究涉及糖的结构、合成、生物学和进化，涵盖碳水化合物化学、聚糖形成与降解酶学、蛋白质-聚糖识别，以及聚糖在生物系统中的功能。该领域与基础研究、生物医学和生物技术密切相关。