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11S globulin family
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Family of globulin proteins
11S globulin family is a family of globulin proteins chiefly found in seeds of legumes (legumin-like), along with 7S family, often found in a protein fraction within a protein isolate. They are used as storage of important nutrients for plant growth, and therefore hardy enough to pass through the human digestive system unscathed. One common example of an 11S globulin includes glycinin derived from soy.
Name
The term 11S refers to the sedimentation coefficient, with a range of 10.5–13 versus the vicilin-like globulins (7S family) with coefficients of 7.0–9.0Michael C. Lawrence Seed Proteins 517–541 10.1007/978-94-011-4431-5_22 Structural Relationships of 7S and 11S Globulins 1999 978-94-010-5904-6
Characteristics
It is characterized by a hexamer (with hexagonal shape). Several residues are conserved among 11S family.
Like other globulins, they are not completely digested and broken into amino acids and have the potential to bind to various proteins in the body and can exert effects independent of their amino acids constituents, even after consumption.Crystal structure of soybean 11S globulin : Glycinin A3B4 homohexamer Motoyasu Adachi Jiro Kanamori Taro Masuda Kazuhiro Yagasaki Keisuke Kitamura Bunzo Mikami Shigeru Utsumi 10.1073/pnas.0832158100 12771376 100 12 Proceedings of the National Academy of Sciences 7395–7400 165886 2003 2003PNAS..100.7395A free They tend to have high emulsifying effects.http://www.pulsecanada.com/uploads/72/47/7247a8ce5222733d6ef7da7ace146a01/Pulse-Protein.pdf Pulse Proteins Pulsecanada.com 2017-02-26 https://web.archive.org/web/20170305001042/http://www.pulsecanada.com/uploads/72/47/7247a8ce5222733d6ef7da7ace146a01/Pulse-Protein.pdf 2017-03-05 dead
References
External links
Power of Soy Part 1 : Anti aging Soy Protein - Medical Frontiers NHK
Category:Seed storage proteins
Category:Protein families