Recombinant Rat Synaptotagmin-2 (SYT2) Protein (His)

Beta LifeScience SKU/CAT #: BLC-02023P
Greater than 85% as determined by SDS-PAGE.
Greater than 85% as determined by SDS-PAGE.

Recombinant Rat Synaptotagmin-2 (SYT2) Protein (His)

Beta LifeScience SKU/CAT #: BLC-02023P
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Product Overview

Description Recombinant Rat Synaptotagmin-2 (SYT2) Protein (His) is produced by our E.coli expression system. This is a full length protein.
Purity Greater than 85% as determined by SDS-PAGE.
Uniprotkb P29101
Target Symbol SYT2
Synonyms (Synaptotagmin II)(SytII)
Species Rattus norvegicus (Rat)
Expression System in vitro E.coli expression system
Tag N-10His
Target Protein Sequence MRNIFKRNQEPIVAPATTTATMPLAPAAPADNSTESTGTGESQEDMFAKLKDKFFNEINKIPLPPWALIAMAVVAGLLLLTCCFCICKKCCCKKKKNKKEKGKGMKNAMNMKDMKGGQDDDDAETGLTEGEGEGEEEKEPENLGKLQFSLDYDFQANQLTVGVLQAAELPALDMGGTSDPYVKVFLLPDKKKKYETKVHRKTLNPAFNETFTFKVPYQELGGKTLVMAIYDFDRFSKHDIIGEVKVPMNTVDLGQPIEEWRDLQGGEKEEPEKLGDICTSLRYVPTAGKLTVCILEAKNLKKMDVGGLSDPYVKIHLMQNGKRLKKKKTTVKKKTLNPYFNESFSFEIPFEQIQKVQVVVTVLDYDKLGKNEAIGKIFVGSNATGTELRHWSDMLANPRRPIAQWHSLKPEEEVDALLGKNK
Expression Range 1-422aa
Protein Length Full Length
Mol. Weight 48.7 kDa
Research Area Neuroscience
Form Liquid or Lyophilized powder
Buffer Liquid form: default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. Lyophilized powder form: the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution Briefly centrifuged the vial prior to opening to bring the contents to the bottom. Reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL. It is recommended to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. The default final concentration of glycerol is 50%.
Storage 1. Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. 2. Avoid repeated freeze-thaw cycles. 3. Store working aliquots at 4°C for up to one week. 4. In general, protein in liquid form is stable for up to 6 months at -20°C/-80°C. Protein in lyophilized powder form is stable for up to 12 months at -20°C/-80°C.
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Target Details

Target Function Exhibits calcium-dependent phospholipid and inositol polyphosphate binding properties. May have a regulatory role in the membrane interactions during trafficking of synaptic vesicles at the active zone of the synapse. Plays a role in dendrite formation by melanocytes.; (Microbial infection) Receptor for C.botulinum neurotoxin type B (BoNT/B, botB); unlike the case with BoNT/B interaction is not improved in the presence of gangliosides. The toxin binds to the vesicular domain of Syt2 (residues 1-61).; (Microbial infection) Receptor for C.botulinum neurotoxin type G (BoNT/G, botG); unlike the case with BoNT/B interaction is not improved in the presence of gangliosides. The toxin binds to the vesicular domain of Syt2 (residues 1-61).
Subcellular Location Cytoplasmic vesicle, secretory vesicle, synaptic vesicle membrane; Single-pass membrane protein. Cytoplasmic vesicle, secretory vesicle, chromaffin granule membrane; Single-pass membrane protein. Cytoplasm.
Protein Families Synaptotagmin family
Database References
Tissue Specificity Predominantly expressed in brain regions such as the spinal cord, brain stem and cerebellum.

Gene Functions References

  1. Crystal structure of the rat Syt2 protein botulinum neurotoxin DC complex. PMID: 23932591
  2. Data suggest that immature medial nucleus of the trapezoid body terminals may contain two populations of synaptic vesicles, one expressing VGLUT3 with synaptotagmin 2 and another expressing VGLUT3 with synaptotagmin 1. PMID: 21456023
  3. Synaptotagmin II is critical for the delivery of internalized cargo for degradation. One consequence of Synaptotagmin II suppression is a delay in PKCalpha downregulation, resulting in its prolonged signaling. PMID: 12118064
  4. syts I and II can function as protein receptors for Botulinum neurotoxin b and mediate its entry PMID: 14504267
  5. both synaptotagmins I and II can interact with the syntaxin/synaptosomal-associated protein of 25 kDa (SNAP-25) dimer PMID: 14709554
  6. The results indicated that Syt2 played a negative regulation in exocytosis of lysosomes in RBL-2H3 cells. PMID: 16212888
  7. the structure of a BoNT in complex with its protein receptor: the receptor-binding domain of botulinum neurotoxin serotype B (BoNT/B) bound to the luminal domain of synaptotagmin II, determined at 2.15 A resolution PMID: 17167421
  8. An overexpressed mutation in Syt2 leaves intrinsic calcium sensitivity of synaptic vesicles intact while it destabilizes the readily releasable pool of vesicles. PMID: 19709630

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.

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