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Zymogen Granule Membrane Protein 16 Human E. coli

  • Regulatory status:RUO
  • Type:Recombinant protein
  • Source:E. coli
  • Other names:ZG16, Secretory lectin ZG16
  • Species:Human
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Cat. No. Size Price


RD172229100 0.1 mg
PubMed Product Details
Technical Data

Type

Recombinant protein

Description

Total 161 AA. MW: 17.9 kDa (calculated). UniProtKB acc.no. O60844. N-Terminal His-tag (10 extra AA)

Amino Acid Sequence

MKHHHHHHASNAIQARSSSYSGEYGSGGGKRFSHSGNQLDGPITALRVRVNTYYIVGLQVRYGKVWSDYVGGRNGDLEEIFLHPGESVIQVSGKYKWYLKKLVFVTDKGRYLSFGKDSGTSFNAVPLHPNTVLRFISGRSGSLIDAIGLHWDVYPTSCSRC

Source

E. coli

Purity

Purity as determined by densitometric image analysis: >95%

SDS-PAGE Gel

14% SDS-PAGE separation of Human ZG16
1. M.W. marker – 97, 66, 45, 31, 21, 14 kDa
2. reduced and boiled sample, 5μg/lane
3. non-reduced and non-boiled sample, 5μg/lane

Endotoxin

<1.0 EU/ug

Formulation

Filtered (0,4 μm) and lyophilized in 0.5 mg/mL in 0.05 M phosphate buffer, 0.075 M NaCl, pH 7.4

Reconstitution

Add deionized water to prepare a working stock solution of approximately 0.5 mg/mL and let the lyophilized pellet dissolve completely. Filter sterilize your culture media/working solutions containing this non-sterile product before using in cell culture.

Applications

Western blotting, ELISA

Shipping

At ambient temperature. Upon receipt, store the product at the temperature recommended below.

Storage/Expiration

Store lyophilized protein at –80°C. Lyophilized protein remains stable until the expiry date when stored at –80°C. Aliquot reconstituted protein to avoid repeated freezing/thawing cycles and store at –80°C for long term storage. Reconstituted protein can be stored at 4°C for a week.

Quality Control Test

BCA to determine quantity of the protein.

SDS PAGE to determine purity of the protein.

LAL to determine quantity of endotoxin.

Summary

Research topic

Oncology, Others

Summary

Zymogen granule membrane protein 16 (ZG16) is a 16 kDa protein first identified by immunoscreening of a rat pancreatic cDNA expression library with a polyspecific antiserum raised against purified zymogen granule membranes (ZGM). ZG16 displays sequence homology especially in the carbohydrate recognition domain to the plant lectin jacalin, which recognizes terminal galactose attached to N-acetylgalactosamine by a β1–3 linkage. According to its sequence homology with this lectin, ZG16 was considered a secretory lectin ZG16. Sequence analyses uncovered that ZG16 is highly conserved amongst mammals but also appears in many other species. Rat ZG16 was found to be highly expressed in pancreas, colon, and duodenum, where the protein was localized in the zymogen granule of pancreas. The previous reports indicated that rat ZG16 took part in the formation of zymogen granule by mediating the digested enzymes to the zymogen granule membrane in pancreatic acinar cells. Human ZG16 was shown to be highly expressed in adult liver and moderately expressed in intestine (jejunum, ileum) and colon. Moreover, ZG16 is also weakly expressed in pedunculus cerebellaris but not in other brain’s regions. Owing to the specific expression pattern in human liver, ZG16 was evaluated in hepatocellular carcinoma (HCC), a common cancer worldwide (it was found that human ZG16 was significantly down-regulated in HCC). ZG16 protein took part also in several secretions of glycoproteins (the secretion of human ZG16 would be affected when the synthesis of glycans was inhibited with inhibitor or without glucose in cell culture).

Summary References (7)

References to Zymogen granule membrane protein 16

  • Kanagawa M, Satoh T, Ikeda A, Nakano Y, Yagi H, Kato K, Kojima-Aikawa K, Yamaguchi Y. Crystal structures of human secretory proteins ZG16p and ZG16b reveal a Jacalin-related beta-prism fold. Biochem Biophys Res Commun. 2011 Jan 7;404 (1):201-5
  • Kleene R, Dartsch H, Kern HF. The secretory lectin ZG16p mediates sorting of enzyme proteins to the zymogen granule membrane in pancreatic acinar cells. Eur J Cell Biol. 1999 Feb;78 (2):79-90
  • Schmidt K, Dartsch H, Linder D, Kern HF, Kleene R. A submembranous matrix of proteoglycans on zymogen granule membranes is involved in granule formation in rat pancreatic acinar cells. J Cell Sci. 2000 Jun;113 ( Pt 12):2233-42
  • Schmidt K, Schrader M, Kern HF, Kleene R. Regulated apical secretion of zymogens in rat pancreas. Involvement of the glycosylphosphatidylinositol-anchored glycoprotein GP-2, the lectin ZG16p, and cholesterol-glycosphingolipid-enriched microdomains. J Biol Chem. 2001 Apr 27;276 (17):14315-23
  • Tateno H, Yabe R, Sato T, Shibazaki A, Shikanai T, Gonoi T, Narimatsu H, Hirabayashi J. Human ZG16p recognizes pathogenic fungi through non-self polyvalent mannose in the digestive system. Glycobiology. 2012 Feb;22 (2):210-20
  • Wasle B, Edwardson JM. The regulation of exocytosis in the pancreatic acinar cell. Cell Signal. 2002 Mar;14 (3):191-7
  • Zhou YB, Cao JB, Yang HM, Zhu H, Xu ZG, Wang KS, Zhang X, Wang ZQ, Han ZG. hZG16, a novel human secreted protein expressed in liver, was down-regulated in hepatocellular carcinoma. Biochem Biophys Res Commun. 2007 Apr 13;355 (3):679-86
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