|Datasheet||Specific References||Reviews||Related Products||Protocols|
|Vector Type||Mammalian Expression Vector|
|Expression Method||Constiutive, Stable / Transient|
|Selection In Mammalian Cells||Hygromycin|
Human influenza hemagglutinin (HA) is a surface glycoprotein required for the infectivity of the human virus. The HA tag is derived from the HA-molecule corresponding to amino acids 98-106 has been extensively used as a general epitope tag in expression vectors. Many recombinant proteins have been engineered to express the HA tag, which does not appear to interfere with the bioactivity or the biodistribution of the recombinant protein. This tag facilitates the detection, isolation, and purification of the proteins.
The actual HA tag is as follows: 5' TAC CCA TAC GAT GTT CCA GAT TAC GCT 3' or 5' TAT CCA TAT GAT GTT CCA GAT TAT GCT 3' The amino acid sequence is: YPYDVPDYA.
|Human CST1 ORF mammalian expression plasmid, C-GFPSpark tag||HG11568-ACG|
|Human CST1 ORF mammalian expression plasmid, C-OFPSpark / RFP tag||HG11568-ACR|
|Human CST1 ORF mammalian expression plasmid, C-Flag tag||HG11568-CF|
|Human CST1 ORF mammalian expression plasmid, C-His tag||HG11568-CH|
|Human CST1 ORF mammalian expression plasmid, C-Myc tag||HG11568-CM|
|Human CST1 ORF mammalian expression plasmid, C-HA tag||HG11568-CY|
|Human CST1 Gene cDNA clone plasmid||HG11568-M|
|Human CST1 ORF mammalian expression plasmid, N-Flag tag||HG11568-NF|
|Human CST1 ORF mammalian expression plasmid, N-His tag||HG11568-NH|
|Human CST1 ORF mammalian expression plasmid, N-Myc tag||HG11568-NM|
|Human CST1 ORF mammalian expression plasmid, N-HA tag||HG11568-NY|
|Human CST1 natural ORF mammalian expression plasmid||HG11568-UT|
|Learn more about expression Vectors|
Cystatin-SN, also known as Cystain-SA-I, Cystatin-1, Salivary cystatin-SA-1 and CST1, is a secreted protein which belongs to the cystatin family. The cystatin superfamily encompasses proteins that contain multiple cystatin-like sequences. Some of the members are active cysteine protease inhibitors, while others have lost or perhaps never acquired this inhibitory activity. Cystatin-SN / CST1 is expressed in submandibular and sublingual saliva but not in parotid saliva (at protein level). Cystatin-SN / CST1 is also expressed in saliva, tears, urine and seminal fluid. Human saliva appears to contain several cysteine proteinase inhibitors that are immunologically related to cystatin S but that differ in their specificity due to amino acid sequence differences. Human salivary cystatins include Cystatin-S, Cystatin-S1, Cystatin-S2, Cystatin- SA, Cystatin-SN, Cystatin-C and Cystatin-D. Cystatin-SN is a much better inhibitor of papain and dipeptidyl peptidase I than is cystatin-S, although both inhibit ficin equally well.