Creative Biolabs is offering the most comprehensive services for antibody development projects. With strict regulation and effective execution, we are dedicated to providing the most valuable solutions to complete your projects.
HighlightsCreative Biolabs is offering the most comprehensive services for antibody development projects. With strict regulation and effective execution, we are dedicated to providing the most valuable solutions to complete your projects.
HighlightsCreative Biolabs has established a broad range of platforms for developing novel antibodies or equivalents. These cutting-edge technologies enable our scientists to meet your demands from different aspects and tailor the most appropriate solution that contributes to the success of your projects.
HighlightsWith deep understanding in antibody-related realms and extensive project experience, Creative Biolabs offers a variety of references to help you learn more about our capacities and achievements, including infographic, flyer, case study, peer-reviewed publications, and all kinds of knowledge that can assist your projects. You are also welcome to contact us directly for more specific solutions.
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ST6GAL1 (ST6 beta-galactoside alpha-2,6-sialyltransferase 1) is a type II membrane-anchored sialyltransferase encoded by the ST6GAL1 gene. This enzyme localizes primarily to Golgi apparatus compartments. A short N-terminal cytoplasmic region and adjacent transmembrane segment anchor the protein in the Golgi membrane, while its large catalytic domain projects into the Golgi lumen, where glycan modification reactions take place. Conserved sequence motifs within the luminal domain contribute to the catalytic site for sialic-acid transfer. During biosynthesis, nascent ST6GAL1 is synthesized and co-translationally inserted into the endoplasmic reticulum membrane through the secretory pathway, followed by processing and trafficking to the Golgi apparatus. Its membrane-anchoring segment maintains association with the Golgi membrane while the catalytic domain faces the luminal substrate pool. Many cell types express ST6GAL1, and enzyme abundance can vary according to cellular requirements for α2,6-linked sialylation of glycoprotein substrates. Proper folding of the luminal domain is required for full enzymatic activity.
ST6GAL1 transfers sialic‑acid units from activated nucleotide‑sugar donor substrates onto galactose‑containing glycan termini of newly synthesized glycoproteins inside Golgi lumen. This enzymatic reaction generates alpha‑2,6‑linked sialylated glycan structures on protein‑bound glycan chains. Other sialyltransferase enzymes produce distinct glycan linkage types and cannot fully replace the specific linkage preference exhibited by ST6GAL1. Impaired ST6GAL1 function reduces generation of alpha‑2,6‑sialylated glycoprotein products. Variation in enzyme abundance changes overall cellular capacity to install this specific glycan terminal modification. Structural alteration inside catalytic pocket may shift donor‑substrate usage or change acceptor‑glycan selectivity. After sialylation processing, modified glycoprotein substrates are further trafficked toward cell surface or secretion compartments, and the installed sialic‑acid residues can alter molecular interaction properties of mature glycoproteins.
Fig. 1 Golgi-associated N-glycoprotein processing and ST6GAL1-catalyzed α2,6-sialylation. (A) N-glycoproteins initiate glycosylation in the endoplasmic reticulum and undergo sequential trimming, extension, and terminal sialylation during trafficking through the Golgi apparatus before delivery to the cell surface. (B) ST6GAL1 catalyzes the transfer of sialic acid from CMP-sialic acid to terminal galactose residues on N-glycans, generating α2,6-linked sialic acid.¹1
The biological functions of ST6GAL1 are focused on sialic‑acid moiety catalytic transfer, alpha‑2,6‑glycan linkage formation and nascent glycoprotein modification:
Creative Biolabs offers purified ST6GAL1 protein samples via standardized preparation workflows, including full length ST6GAL1 constructs and isolated luminal catalytic domain variants. Isolated catalytic domain fragments may not support complete membrane‑anchored physiological context‑dependent modification behaviours, while full length constructs may be suited for Golgi‑associated sialyltransferase‑mediated glycan‑modification research. All samples receive routine quality screening, and functional relevant observation may only be carried out with full length samples under appropriate simulated molecular environments. All sample batches follow unified processing standards to maintain consistent structural features for comparative laboratory analysis across separate test groups.
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Creative Biolabs provides adjustable ST6GAL1 expression cell models with varied expression levels, applicable to Golgi‑resident sialyltransferase structural characteristic observation and glycoprotein sialylation‑related research. Sample evaluation includes sustained target expression detection and preliminary substrate‑interaction associated observation, which can support comparative analysis of enzyme relevant behaviours under different expression statuses. These cell systems can be matched with diverse laboratory analysis schemes to observe changes of glycan‑modification‑associated efficiency under different target expression abundances.
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Antibody reagents targeting ST6GAL1 are generated via mature protein preparation workflows, compatible with multiple routine laboratory detection methods for subcellular localization profiling and molecular complex identification, to support systematic analysis of ST6GAL1 distribution and glycan modification relevant molecular complexes across diverse laboratory research setups. The antibody series can cooperate with other common laboratory detection reagents to complete multi dimensional observation of target distribution inside tissue samples.
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Beyond catalog products, Creative Biolabs offers specialized custom services for ST6GAL1 research:
ST6GAL1 may function as Golgi‑resident sialyltransferase and participate in alpha‑2,6‑linked sialic‑acid transfer onto nascent glycoprotein glycan termini.
ST6GAL1 functional status may influence glycoprotein alpha‑2,6‑sialylation profiles, serving as a major regulatory mediator of glycan‑modification‑related biological processes.
No, all ST6GAL1 related products and services are strictly for research use only, not intended for clinical related operations. All material designs and functional tests are only optimized for basic laboratory research scenarios, without matching clinical application standards.
Offerings include full length ST6GAL1 protein, target specific recombinant antibodies and adjustable expression cell research models, supporting sialylation glycan modification research.
Laboratory observation schemes may include glycan‑acceptor‑dependent sialic‑acid transfer related tests to analyse enzyme‑relevant behaviours under simulated molecular environments.
