Category:LBS/Biosynthesis/GIPC: Difference between revisions

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{| style="text-align:center" cellspacing="0"
{| style="text-align:center;border-spacing:0;border-collapse:collapse;"
|-
| style="background:darkseagreen;border-radius: 20px 0px 0px 20px" | palmitoyl (16:0)-CoA<br/>+<br/>serine
| style="background:darkseagreen;border-radius: 20px 0px 0px 20px" | palmitoyl (16:0)-CoA<br/>+<br/>serine
| style="background:darkseagreen" | SPT<br/>[[File:Arrow00r.png]]<br/>
| style="background:darkseagreen" | SPT<br/>[[File:Arrow00r.png]]<br/>
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|-
|-
| colspan="4"|  
| colspan="4"|  
| style="background:darkseagreen" | {{Map/ReactionDown|LCFA-CoA||CS I<ref>CS can utilize a range of FA-CoAs (C16-24) but not hydroxy-FA-CoAs. See Sperling P, Heinz E. (2003) Biochim Biophys Acta 1632:1-15.PMID 12782146</ref>}}
| style="background:darkseagreen" | {{Map/ReactionDown|LCFA-CoA||CS I<ref>CS can utilize a range of FA-CoAs (C16-24) but not hydroxy-FA-CoAs. See Sperling P, Heinz E. “Plant sphingolipids: structural diversity, biosynthesis, first genes and functions” Biochim Biophys Acta. 2003 10;1632:1-15. PMID 12782146</ref>}}
| rowspan="4" style="background:darkseagreen; font-weight: 600; text-shadow:black 3px 3px 5px; color: white; font-size: large"| Lumen of endoplasmic<br/> reticulum (ER)
| rowspan="4" style="background:darkseagreen; font-weight: 600; text-shadow:black 3px 3px 5px; color: white; font-size: large"| Lumen of endoplasmic<br/> reticulum (ER)
| style="background:darkseagreen" | {{Map/ReactionDown|VLCFA-CoA||CS II}}
| style="background:darkseagreen" | {{Map/ReactionDown|VLCFA-CoA||CS II}}
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|colspan="4" rowspan="7"|  
|colspan="4" rowspan="7"|  
{| class="wikitable"
{| class="wikitable"
|'''Abbreviations'''<br/>SPT: serine palmitoyltransferase<br/>KSR: 3-ketosphinganine reductase<br/>LCB: long-chain base<br/>GCS: glucosylceramide synthase<br/>CS I/II: (dihydro)ceramide synthase I/II<br/>DES: desaturase<br/>FA OHase: Fatty-acid hydroxylase<br/>MT: methyltransferase<br/>LCFA: long-chain fatty acid<br/>VLCFA: very long-chain fatty acid<br/>IPCS: inositol phosphoceramide synthase<br/>PI: phosphatidylinositol<br/>DAG: diacylglycerol
!colspan="2"|Abbreviations
|-
| CS I/II || (dihydro)ceramide synthase I/II
|-
| DAG || diacylglycerol
|-
| DES || desaturase
|-
| FA OHase || Fatty-acid hydroxylase
|-
| GCS || glucosylceramide synthase
|-
| IPCS || inositol phosphoceramide synthase
|-
| KSR || 3-ketosphinganine reductase
|-
| LCB || long-chain base
|-
| LCFA || long-chain fatty acid
|-
| MT || methyltransferase
|-
| PI || phosphatidylinositol
|-
| SPT || serine palmitoyltransferase
|-
| VLCFA || very long-chain fatty acid
|}
|}
| style="background:darkseagreen" | '''d18:0-LCFA'''
| style="background:darkseagreen" | '''d18:0-LCFA'''
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|colspan="2" rowspan="3" valign="top"| '''Glc-ceramide'''<br/>Glc-d18:2 4E,8E/Z-hLCFA<br/>Glc-d18:1 8E/Z-hLCFA<br/>Glc-t18:1-hVLCFA
|colspan="2" rowspan="3" valign="top"| '''Glc-ceramide'''<br/>Glc-d18:2 4E,8E/Z-hLCFA<br/>Glc-d18:1 8E/Z-hLCFA<br/>Glc-t18:1-hVLCFA
|rowspan="3" style="background:darkturquoise;border-radius: 20px 0px 0px 20px;font-weight: 600; text-shadow:black 3px 3px 5px; color: white; font-size: large"| Golgi
|rowspan="3" style="background:darkturquoise;border-radius: 20px 0px 0px 20px;font-weight: 600; text-shadow:black 3px 3px 5px; color: white; font-size: large"| Golgi
| style="background:darkturquoise;border-radius: 0px 20px 0px 0px"| '''t18:1&Delta;8E/Z-hVLCFA'''<br/>(in Golgi)
| style="background:darkturquoise;border-radius: 0px 20px 0px 0px"| '''t18:1&Delta;8E/Z-hVLCFA'''<br/>
|-  
|-  
| style="background:darkturquoise"| {{Map/ReactionDown|PI|DAG|IPCS<ref>Activity of IPCS is high in Fabaceae. See Bromley PE, Li YO, Murphy SM, Sumner CM, Lynch DV (2003) Archiv Biochem Biophys 417:219-226 PMID 12941304</ref>}}
| style="background:darkturquoise"| {{Map/ReactionDown|PI|DAG|IPCS<ref>Activity of IPCS is high in Fabaceae. See Bromley PE, Li YO, Murphy SM, Sumner CM, Lynch DV. “Complex sphingolipid synthesis in plants: characterization of inositolphosphorylceramide synthase activity in bean microsomes” Arch Biochem Biophys. 2003 15;417:219-26. PMID 12941304</ref>}}
|-
|-
| style="background:darkturquoise;border-radius: 0px 0px 20px 0px"| '''GIPC''' (in Golgi)
| style="background:darkturquoise;border-radius: 0px 0px 20px 0px"| '''GIPC'''
|}
|}


<references/>
<references/>

Latest revision as of 23:56, 19 December 2017

palmitoyl (16:0)-CoA
+
serine
SPT
Arrow00r.png
3-keto sphinganine KSR
Arrow00r.png
sphinganine
d18:0
LCB C-4 OHase
Arrow00r.png
phytosphinganine
t18:0
Arrow1ld35.png
LCFA-CoA
CS I[1]
Lumen of endoplasmic
reticulum (ER)
Arrow1ld35.png
VLCFA-CoA
CS II
Abbreviations
CS I/II (dihydro)ceramide synthase I/II
DAG diacylglycerol
DES desaturase
FA OHase Fatty-acid hydroxylase
GCS glucosylceramide synthase
IPCS inositol phosphoceramide synthase
KSR 3-ketosphinganine reductase
LCB long-chain base
LCFA long-chain fatty acid
MT methyltransferase
PI phosphatidylinositol
SPT serine palmitoyltransferase
VLCFA very long-chain fatty acid
d18:0-LCFA t18:0-VLCFA
Arrow00d35.png
Δ8 DES
Δ4 DES
FA-αOHase
(C-9 MT in fungi)
Arrow00d35.png
Δ8 DES
FA-αOHase
Bold font = ceramides
d18:1Δ8E/Z-hLCFA t18:1Δ8E/Z-hVLCFA
Arrow00dr35.png +UDP-Glc +UDP-Glc Arrow00dl35.png transport Arrow00dr35.png
Glc-ceramide
Glc-d18:2 4E,8E/Z-hLCFA
Glc-d18:1 8E/Z-hLCFA
Glc-t18:1-hVLCFA
Golgi t18:1Δ8E/Z-hVLCFA
Arrow3ld.png
PI
IPCS[2]
DAG
GIPC
  1. CS can utilize a range of FA-CoAs (C16-24) but not hydroxy-FA-CoAs. See Sperling P, Heinz E. “Plant sphingolipids: structural diversity, biosynthesis, first genes and functions” Biochim Biophys Acta. 2003 10;1632:1-15. PMID 12782146
  2. Activity of IPCS is high in Fabaceae. See Bromley PE, Li YO, Murphy SM, Sumner CM, Lynch DV. “Complex sphingolipid synthesis in plants: characterization of inositolphosphorylceramide synthase activity in bean microsomes” Arch Biochem Biophys. 2003 15;417:219-26. PMID 12941304

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