ヘプトース
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2015/06/12 09:41:55」(JST)
[Wiki en表示]
|
This article does not cite any references or sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (December 2009) |
A heptose is a monosaccharide with seven carbon atoms.
They have either an aldehyde functional group in position 1 (aldoheptoses) or a ketone functional group in position 2 (ketoheptoses).
There are few examples of C-7 sugars in nature, among which are:
- Sedoheptulose or D-altro-heptulose (a ketose), an early intermediate in lipid A biosynthesis
- Mannoheptulose, found in avocados
- L-glycero-D-manno-heptose (an aldose), a late intermediate in lipid A biosynthesis.
Ketoheptoses have 4 chiral centers, whereas aldoheptoses have 5.
References
Types of carbohydrates
|
|
General |
- Aldose
- Ketose
- Furanose
- Pyranose
|
|
Geometry |
- Anomer
- Cyclohexane conformation
- Mutarotation
|
|
Monosaccharides |
Dioses |
|
|
Trioses |
|
|
Tetroses |
|
|
Pentoses |
- Aldopentoses
- Arabinose
- Lyxose
- Ribose
- Xylose
- Ketopentoses
- Deoxy sugars
|
|
Hexoses |
- Aldohexoses
- Allose
- Altrose
- Galactose
- Glucose
- Gulose
- Idose
- Mannose
- Talose
- Ketohexoses
- Fructose
- Psicose
- Sorbose
- Tagatose
- Deoxy sugars
|
|
Heptoses |
- Ketoheptoses
- Mannoheptulose
- Sedoheptulose
|
|
Above 7 |
|
|
|
Multiple |
Disaccharides |
- Cellobiose
- Isomaltose
- Lactose
- Lactulose
- Maltose
- Sucrose
- Trehalose
- Turanose
|
|
Trisaccharides |
- Maltotriose
- Melezitose
- Raffinose
|
|
Tetrasaccharides |
|
|
Other
oligosaccharides |
- Acarbose
- Fructooligosaccharide (FOS)
- Galactooligosaccharide (GOS)
- Isomaltooligosaccharide (IMO)
- Maltodextrin
- Mannan-oligosaccharides (MOS)
|
|
Polysaccharides |
- Beta-glucan
- Lentinan
- Sizofiran
- Zymosan
- Cellulose
- Chitin
- Dextrin / Dextran
- Fructose / Fructan
- Galactose / Galactan
- Glucose / Glucan
- Levan beta 2→6
- Mannan
- Starch
|
|
|
Index of biochemical families
|
|
Carbohydrates |
- Alcohols
- Glycoproteins
- Glycosides
|
|
Lipids |
- Eicosanoids
- Fatty acids
- Glycerides
- Phospholipids
- Sphingolipids
- Steroids
|
|
Nucleic acids |
|
|
Proteins |
|
|
Other |
|
|
|
English Journal
- Global and targeted lipid analysis of Gemmata obscuriglobus reveals the presence of lipopolysaccharide, a signature of the classical Gram-negative outer membrane.
- Mahat R1, Seebart C1, Basile F2, Ward NL2.
- Journal of bacteriology.J Bacteriol.2015 Oct 19. pii: JB.00517-15. [Epub ahead of print]
- Planctomycete bacteria possess many unusual cellular properties, contributing to a cell plan long considered to be unique among the Bacteria. However, data from recent studies are more consistent with a modified Gram-negative cell plan. A key feature of the Gram- negative plan is the presence of an
- PMID 26483522
- Cloning and expression of 3-deoxy-d-manno-oct-2-ulosonic acid α-ketoside hydrolase from oyster hepatopancreas†.
- Nakagawa T1, Shimada Y1, Pavlova NV1, Li SC1, Li YT2.
- Glycobiology.Glycobiology.2015 Sep 11. pii: cwv074. [Epub ahead of print]
- We have previously reported that oyster hepatopancreas contained three unusual α-ketoside hydrolases: (i) a 3-deoxy-d-manno-oct-2-ulosonic acid α-ketoside hydrolase (α-Kdo-ase), (ii) a 3-deoxy-d-glycero-d-galacto-non-2-ulosonic acid α-ketoside hydrolase and (iii) a bifunctional ketoside hydrolas
- PMID 26362869
- Interaction of human mannose-binding lectin (MBL) with Yersinia enterocolitica lipopolysaccharide.
- Kasperkiewicz K1, Swierzko AS2, Bartlomiejczyk MA2, Cedzynski M3, Noszczynska M1, Duda KA4, Michalski M2, Skurnik M5.
- International journal of medical microbiology : IJMM.Int J Med Microbiol.2015 Sep;305(6):544-52. doi: 10.1016/j.ijmm.2015.07.001. Epub 2015 Jul 8.
- The lipopolysaccharide (LPS) is involved in the interaction between Gram-negative pathogenic bacteria and host. Mannose-binding lectin (MBL), complement-activating soluble pattern-recognition receptor targets microbial glycoconjugates, including LPS. We studied its interactions with a set of Yersini
- PMID 26188838
Japanese Journal
- Synthesis of a Spacer-Linked Derivative of Heptopyranosyl(α1-3)heptopyranose Expressed in Lipooligosaccharide and Lipopolysaccharide
- YAMASAKI Ryohei,NAGAHARA Kaori,KISHIMOTO Katsuya [他],TAKAJYO Akihiko
- Bioscience, biotechnology, and biochemistry 76(4), 772-777, 2012-04-23
- … The resulting α1-3-linked heptose disaccharide was converted to a tricholoroacetaimidate derivative containing a benzoyl group at C-2. …
- NAID 10030751887
- Characterization of the carbohydrate backbone of Vibrio parahaemolyticus O6 lipopolysaccharides
- 一色 恭徳,近藤 誠一
- Microbiology and Immunology 55(8), 539-551, 2011-08
- … The carbohydrate backbone isolated from O6 LPS by sequential derivatization, that is, dephosphorylation, O-deacylation, pyridylamination, N-deacylation and N-acetylation, is a nonasaccharide consisting of 3 mol of D-glucosamine (GlcN) (of which one is pyridylaminated), 2 mol of L-glycero-D-manno-heptose (Hep), and 1 mol each of D-galactose (Gal), D-glucose (Glc), D-glucuronic acid (GlcA) and 3-deoxy-D-manno-oct-2-ulosonic acid (Kdo). …
- NAID 120005352517
- Heat Deterioration of Phospholipids. IV. Thermally Deteriorated Products from Phosphatidylethanolamine and Several Sugars
- Hamaguchi Nobutoshi,Yokoyama Yosuke,Kasahara Yoshihito [他],HAYASHI Akihito,SONO Ryoji,TEBAYASHI Shin-ichi,KIM Chul-Sa,KOH Hen-Sik
- Journal of Oleo Science 55(12), 607-613, 2006
- … Therefore, several pentoses, a heptose and 2-deoxysugars besides hexoses were examined. … On the other hand, two 2,3-dihydro-1H-imidazo[1,2-a]pyridine-4-ylium derivatives with 1,2-dihydroxyethyl group at 6 position on the ring were formed when a heptose was reacted with PE in DSSL fr. …
- NAID 130000055587
Related Links
- Heptose definition, any monosaccharide containing seven carbon atoms. See more. Dictionary.com Word of the Day Translate Games Blog Thesaurus.com Apps Favorites Log Out Log In follow Dictionary.com Dictionary.com ...
- heptose [hep´tōs] a sugar whose molecule contains seven carbon atoms. hep·tose (hep'tōs), A sugar with seven carbon atoms in its molecule; for example, sedoheptulose. heptose /hep·tose/ (hep´tōs) a sugar whose molecule ...
★リンクテーブル★
[★]
- 英
- heptose
- 関
- 七炭糖