Search Tips:

Searching Normal Compounds

To search all records in the selected category, just press the [search] button without any input.

Keyword search finds records based on case-insensitive, substring matching algorithm. Combination of the following boolean operators are available, but only one "!" (it means "not") is allowed per query. Search options (including check boxes) function in the `AND' condition.

operator command example
AND  use a comma     dog, cat  
OR   use a vertical bar |     dog | cat  
NOT   use an exclamation mark     ! dog , cat  

Numeric fields such as the number of carbon atoms, double bonds, or chemical groups are self-explanatory.

operator example
=   equals    1 = carbon  
<   bigger than    1 < carbon  
>   less than    3 > carbon  

Searching Sugar-containing Compounds in Glycosphingolipid

For fatty acids, use abbreviation such as C18:0 or C22:1. For hydroxy fatty acid and omega hydroxy fatty acid, use `h' and `omega', respectively. For long chain bases, use d18:1 (dihydroxy) and t18:0 (trihydroxy).

How to input the carbohydrate structure? reducing

Example: NeuAca-3(S6)Galb-4(Fuca-3)(S6)GlcNAcb-3Galb-4Glcb-Cer
  1. Sugar residues and substituents: use abbreviations (see below).
  2. Anomeric designator: a (alpha), b (beta)
  3. Sugar linkage: -3, -6 etc. (not 1-3 or 1-6 etc.)
  4. Non-sugar substituents: abbreviation + position, e.g. S6 represents HSO3-6
  5. Branched structures are described with parenthesis ( ).
    If multiple branches exist, describe all of them in the order of the number of linkage position (smaller to larger).
  6. Anomer and linkage position may become unspecified by using "?".
    Gal?-4Glcbanomer unspecified
    Galb-?Glcblinkage position unspecified
    Gal?-?Glcbboth unspecified
  7. There are two options for the search (using radio button).

    Note 1: Non-reducing end search will also find "core structure", i.e., the structure generated by detaching fucose and neuraminic acid from original sugar chain if any. For example, if you input the structure "Galb-3GalNAcb-4Gal" and check "non-reducing end" you will get Galb-3GalNAcb-4Gal-R and Fuca-2Galb-3GalNAcb-4Gal-R.

    Note 2: If you input a structure including -Cer, you will get the same result with "reducing end search".

Abbreviation of sugars
Glucose Glc
Galactose Gal
Glucosamine GlcN
Galactosamine GalN
Fucose Fuc
Xylose Xyl
Mannose Man
N-acetylglucosamine GlcNAc
N-acetylgalactosamine GalNAc
N-acetylmannosamine ManNAc
N-acetylneuraminic acid NeuAc
(deacetyl) NeuNH
N-glycolylneuraminic acid NeuGc
Glucuronic acid GlcU
Galacturonic acid GalU
Inositol Ino
Rhamnose Rha
2-keto-3-deoxy-D-glycero-D-galacto-nononic acid KDN
Heptose Hep
Quinovose Qui
Diacylglycerol AAG
Dialkylglycerol EEG
Alkyl-acyl-glycerol EAG
Abbreviation of non-sugar substituents
Ceramide Cer
Sphingosine Sph
Acetyl Ac
Acyl Ay
Methyl Me
2-Aminoethylphosphonyl 2AEPn
2-Aminoethylphosphoryl 2AEPr
N-Methyl-2-aminoethyl-phosphonyl NMAEP
Abbreviation of sugars (lipopolysaccharides)
6-Deoxy-altrose 6dAlt
4-Amino-4-deoxy-arabinose Ara4N
3,6,10-trideoxy-4-C-(D-glycero-1-hydroxyethyl)-D-erythro-D-gluco-decose(Caryophyllose) Car
Colitose (3,6-dideoxy-galactose) Col
Fucosamine (2-Amino-2,6-dideoxy-galactose) FucN
3-Amino-3,6-dideoxy-galactose Fuc3N
4-Amino-4,6-dideoxy-galactose Fuc4N
Galacturonic acid GalA
2-Amino-2-deoxy-galacturonic acid GalNA
2,3-Diamino-2,3-dideoxy-galacturonic acid GalN3NA
Glucuronic acid GlcA
2,3-Diamino-2,3-dideoxy-glucronic acid GlcN3NA
2-Amino-2-deoxy guluronic acid GulNA
2,3-Diamino-2,3-dideoxy-guluronic acid GulN3NA
6-Deoxy-altro-heptose 6daltHep
3-deoxy-D-manno-octulonic acid Kdo
2-Amino-2-deoxy-mannuronic acid ManNA
2,3-Diamino-2,3-dideoxy-mannuronic acid ManN3NA
Pseudaminic acid (5,7-diamino-3,5,7,9-tetradeoxy -L-glycero-L-manno-D-galacturonic acid) Pse
Quinovosamine (2-Amino-2,6-dideoxy-glucose) QuiN
3-Amino-3,6-dideoxy-glucose Qui3N
4-Amino-4,6-dideoxy-glucose Qui4N
2,4-Diamino-2,4,6-trideoxy-glucose (Bacillosamine) QuiN4N
4-Amino-4,6-dideoxy-mannose (Perosamine) Rha4N
2,3-Diamino-2,3,6-trideoxy-mannose RhaN3N
6-Deoxy-talose 6dTal
5,7-diacetamido-3,5,7,9-tetradeoxy-L-glycero-L-manno-nonulosonic acid NonA

Last updated June 19, 2007. Copyright © 1989-2007 Japanese Conference on the Biochemistry of Lipids (JCBL). All rights reserved.