Collagen alpha-1 (XII) chain (COL12A1), partial, human, recombinant

Organism: Homo sapiens (Human). Source: E.coli. Expression Region: 140-316aa. Protein Length: Partial. Tag Info: N-terminal 6xHis-tagged. Target Protein Sequence: DLVFLVDGSW SVGRNNFKYI LDFIAALVSA FDIGEEKTRV GVVQYSSDTR TEFNLNQYYQ RDELLAAIKK IPYKGGNTMT GDAIDYLVKN TFTESAGARV GFPKVAIIIT DGKSQDEVEI PARELRNVGV EVFSLGIKAA DAKELKQIAS TPSLNHVFNV ANFDAIVDIQ NEIISQV. Purity: Greater than 90% as determined by SDS-PAGE. Endotoxin: Not test. Biological Activity: n/a. Form: Liquid or Lyophilized powder. Buffer: If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0. Reconstitution: We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20 °C/-80 °C. Our default final concentration of glycerol is 50%. Customers could use it as reference. Storage: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20 °C/-80 °C. The shelf life of lyophilized form is 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. Relevance: Type XII collagen interacts with type I collagen-containing fibrils, the COL1 domain could be associated with the surface of the fibrils, and the COL2 and NC3 domains may be localized in the perifibrillar matrix. Reference: "Complete primary structure of two splice variants of collagen XII, and assignment of alpha 1(XII) collagen (COL12A1), alpha 1(IX) collagen (COL9A1), and alpha 1(XIX) collagen (COL19A1) to human chromosome 6q12-q13."Gerecke D.R., Olson P.F., Koch M., Knoll J.H.M., Taylor R., Hudson D.L., Champliaud M.-F., Olsen B.R., Burgeson R.E.Genomics 41:236-242(1997). Function: Type XII collagen interacts with type I collagen-containing fibrils, the COL1 domain could be associated with the surface of the fibrils, and the COL2 and NC3 domains may be localized in the perifibrillar matrix.