Acyl carrier protein
From Proteopedia
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<StructureSection load='' size='350' side='right' caption='Structure of E. coli acyl carrier protein complex with thioester, Zn+2 (grey) and Na+ (purple) ions (PDB code [[2fad]]).' scene='59/592131/Cv/1'> | <StructureSection load='' size='350' side='right' caption='Structure of E. coli acyl carrier protein complex with thioester, Zn+2 (grey) and Na+ (purple) ions (PDB code [[2fad]]).' scene='59/592131/Cv/1'> | ||
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== Function == | == Function == | ||
'''Acyl carrier protein''' (ACP) is a component of the fatty acid biosynthesis cycle. ACP catalyzes the addition of a thioester to a phosphopantetheine moiety. The phosphopantetheine moiety is added post-translationally to ACP serine residue by ACP synthetase (ACPS). The phosphopantetheine contains a free SH group which binds acyl groups in the fatty acid biosynthesis as thioesters. The acyl groups from acetyl-CoA and malonyl-CoA are transferred to ACP. There are 2 types of ACP. '''ACP I''' is a multifunctional polypeptide found in yeast and mammals while '''ACP II''' is a monomeric protein found in bacteria and plants.<ref>PMID:18059524</ref> | '''Acyl carrier protein''' (ACP) is a component of the fatty acid biosynthesis cycle. ACP catalyzes the addition of a thioester to a phosphopantetheine moiety. The phosphopantetheine moiety is added post-translationally to ACP serine residue by ACP synthetase (ACPS). The phosphopantetheine contains a free SH group which binds acyl groups in the fatty acid biosynthesis as thioesters. The acyl groups from acetyl-CoA and malonyl-CoA are transferred to ACP. There are 2 types of ACP. '''ACP I''' is a multifunctional polypeptide found in yeast and mammals while '''ACP II''' is a monomeric protein found in bacteria and plants.<ref>PMID:18059524</ref> | ||
| - | See also [[Molecular Playground/ACP apo]] | + | See also: |
| + | *[[Molecular Playground/ACP apo]] | ||
| + | *[[Acyl carrier protein synthase]] | ||
| + | *[[Lipid metabolism]] | ||
| + | *[[Fatty acid synthesis]] | ||
== Structural highlights == | == Structural highlights == | ||
<scene name='59/592131/Cv/11'>Biological Assembly of E. coli acyl carrier protein</scene> ([[2fad]]). <scene name='59/592131/Cv/9'>Active site</scene> of ''E. coli'' acyl carrier protein. Water molecules are shown as red spheres. | <scene name='59/592131/Cv/11'>Biological Assembly of E. coli acyl carrier protein</scene> ([[2fad]]). <scene name='59/592131/Cv/9'>Active site</scene> of ''E. coli'' acyl carrier protein. Water molecules are shown as red spheres. | ||
The <scene name='59/592131/Cv/10'>thioester - heptanethioate - is bound to ACP serine residue</scene> (colored in darkmagenta) in an expandable hydrophobic cavity.<ref>PMID:17059829</ref> | The <scene name='59/592131/Cv/10'>thioester - heptanethioate - is bound to ACP serine residue</scene> (colored in darkmagenta) in an expandable hydrophobic cavity.<ref>PMID:17059829</ref> | ||
| - | *<scene name='59/592131/Cv/ | + | *<scene name='59/592131/Cv/15'>Na coordination site</scene>. |
| - | *<scene name='59/592131/Cv/ | + | *<scene name='59/592131/Cv/16'>Active site hydrophobic cavity with thioester heptanethioate</scene>. |
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==3D structures of acyl carrier protein== | ==3D structures of acyl carrier protein== | ||
| + | [[Acyl carrier protein 3D structures]] | ||
| - | + | </StructureSection> | |
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== References == | == References == | ||
<references/> | <references/> | ||
[[Category:Topic Page]] | [[Category:Topic Page]] | ||
Current revision
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References
- ↑ Byers DM, Gong H. Acyl carrier protein: structure-function relationships in a conserved multifunctional protein family. Biochem Cell Biol. 2007 Dec;85(6):649-62. PMID:18059524 doi:http://dx.doi.org/10.1139/o07-109
- ↑ Roujeinikova A, Simon WJ, Gilroy J, Rice DW, Rafferty JB, Slabas AR. Structural studies of fatty acyl-(acyl carrier protein) thioesters reveal a hydrophobic binding cavity that can expand to fit longer substrates. J Mol Biol. 2007 Jan 5;365(1):135-45. Epub 2006 Sep 23. PMID:17059829 doi:10.1016/j.jmb.2006.09.049

