Category:LBS

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Sphingolipid

Class Overview

Sphingosine & Ceramide

Sphingosine is synthesized from decarboxylating condensation of palmitoyl CoA with serine. It is a 18-carbon amino alcohol (16 carbons from palmitic acid and 2 from serine) with one unsaturated bond (2-amino-4-octadecene-1,3-diol). Sphingosine is further acylated to form ceramide, an important component of cell membranes.
The Sphingolipid category (LBS) in this database includes glycosphingolipid, phosphosphingolipid, and ceramide.

スフィンゴシンはパルミトイルCoAがアミノ酸セリンと脱炭酸縮合して生成します。炭素を18個含むアミノアルコール(16個がパルミチン酸、2個がセリン由来)で不飽和結合を1つ含んでいます (2-amino-4-octadecene-1,3-diol)。 スフィンゴシンがアシル化したものが、細胞膜の重要な成分であるセラミドです。
このデータベースにおけるスフィンゴ脂質カテゴリー (LBS) には、スフィンゴ糖脂質 (glycosphingolipid)、スフィンゴリン脂質 (phosphosphingolipid) 、セラミド (ceramide) が含まれています。

Abbreviations

Template:BilingualID番号 (ページタイトル) の設計

L B S s1 s2 s3 n1 n2 x1 y1 c1 c1

s1 ∼ s3 ... Structure code

The first letter s1 is:
Z for Galβ1-4Glcβ1-1Cer root, prevalent in higher animals
Y for GlcNAcβ1-3Manβ1-4Glcβ1-1Cer root (Arthro type)
0 to Q for the 1st sugar as explained below.
The 2nd and 3rd letters s2 and s3 are:
0 to Q for the 3rd and 4th sugars for Z class
0 to Q for the 4rd and 5th sugars for Y class
0 to Q for the 2rd and 3th sugars for others


Classification

By the Number of Sugars 糖の個数

For glycosphingolipid, 2 digits following LBS stand for the number of attached sugars. For phosphosphingolipid, the code of phosphorylation, PP.

スフィンゴ糖脂質は結合している糖の総数をLBSに続く2桁の数字で、スフィンゴリン脂質は数字の代わりにリン酸化修飾を示す記号PPで分類しています。

Sphingolipid Overview

Glycosphingolipid
スフィンゴ糖脂質: LBSnn
LBSnn.png

Phosphosphingolipid
スフィンゴリン脂質: LBSPP
LBSPP.png

Table 1. Classification by the Number of Sugars
 
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Polysaccharide Chain

Table 1. Glycosphingolipids and Phosphosphingolipids

Glycosphingolipids (Abbr. R = Galβ1-4Glcβ1-Cer)

Ganglio [Gg] (??)
GalNAcβ1-4R
Lacto [Lc] (??)
GlcNAcβ1-3R
Globo [Gb] (??)
Galα1-4R
Root [R] (??)
derivatives of R
3rd saccharide
3rd saccharide
Lacto? GlcNAcβ1-3 R
Lacto Galβ1-3GlcNAcβ1-3 R
Neolacto Galβ1-4GlcNAcβ1-3 R
3rd saccharide
[Galα1-3]n Galα1-4 R
Galβ1-3GalNAcβ1-3 Galα1-4 R
GlcNAcβ1-6GalNAcβ1-3 Galα1-4 R
GalNAcβ1-3 Galα1-4 R
structure
hemato SAs (GM3,GD3,GT3)
Isoganglio [IG] (??)
GalNAcβ1-3R
Lacto with β1-6 [L6] (??)
GlcNAcβ1-6R
Isoglobo [IB] (??)
Galα1-3R

Lactoganglio [LG]

GalNAcβ1-4
GlcNAcβ1-3

R
Isogloboganglio [BG]

GalNAcβ1-4
Galα1-3

R
Table 1. Glycosphingolipids and Phosphosphingolipids

Glycosphingolipids without ROOT

Glc-Cer (??)
Glcβ1-Cer
Gal-Cer (??)
Galβ1-Cer
2nd saccharide
Glc-Cer Glcβ1-Cer
Arthro GlcNAcβ1-3Manβ1-4Glcβ1-Cer
Mollu Manα1-3Manβ1-4Glcβ1-Cer
Muco Galβ1-4Galβ1-4Glcβ1-Cer
2nd saccharide
Gala Galα1-4(6)Galβ1-Cer
??? Galβ1-4(6)Galβ1-Cer
Spirometo Galβ1-4Glcβ1-3Galβ1-Cer
NeuAcα2-3Galβ1-Cer
Phospho (??)
Ino-P-Cer
Others (??)
2nd saccharide
2nd saccharide

Subcategories

This category has the following 4 subcategories, out of 4 total.