Carbon assimilation C4 pathway (Zea mays)
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Description
C4 carbon fixation is the CO2 fixation mechanism used by the maize plant which harbors a kranz anatomy in its leaves. In maize it is carried out in two types of cells namely the mesophyll cell where Carbonic anhydrase fixes diffused CO2 to HCO3 and the enzyme PEP carboxylase converts HCO3 into oxaloacetic acid. Malate dehydrogenase catalyzes the conversion of oxaloacetic acid into malate in the mesophyll chloroplast. Malate is transported to the bundle sheath cell cytoplasm followed by the bundle sheath chloroplast where it is broken down into pyruvate and the CO2. This CO2 molecule is now fixed into 3-phosphoglycerate molecule by the active Rubisco enzyme. This process is different from the C3-carbon assimilation in rice which occurs only in the bundle sheath cells.
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Bibliography
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- Majeran W, Zybailov B, Ytterberg AJ, Dunsmore J, Sun Q, van Wijk KJ; ''Consequences of C4 differentiation for chloroplast membrane proteomes in maize mesophyll and bundle sheath cells.''; Mol Cell Proteomics, 2008 PubMed Europe PMC Scholia
- Friso G, Majeran W, Huang M, Sun Q, van Wijk KJ; ''Reconstruction of metabolic pathways, protein expression, and homeostasis machineries across maize bundle sheath and mesophyll chloroplasts: large-scale quantitative proteomics using the first maize genome assembly.''; Plant Physiol, 2010 PubMed Europe PMC Scholia
- Chastain CJ, Botschner M, Harrington GE, Thompson BJ, Mills SE, Sarath G, Chollet R; ''Further analysis of maize C(4) pyruvate,orthophosphate dikinase phosphorylation by its bifunctional regulatory protein using selective substitutions of the regulatory Thr-456 and catalytic His-458 residues.''; Arch Biochem Biophys, 2000 PubMed Europe PMC Scholia
- Ayala-Ochoa A, Vargas-Suárez M, Loza-Tavera H, León P, Jiménez-GarcÃa LF, Sánchez-de-Jiménez E; ''In maize, two distinct ribulose 1,5-bisphosphate carboxylase/oxygenase activase transcripts have different day/night patterns of expression.''; Biochimie, 2004 PubMed Europe PMC Scholia
- Tausta SL, Coyle HM, Rothermel B, Stiefel V, Nelson T; ''Maize C4 and non-C4 NADP-dependent malic enzymes are encoded by distinct genes derived from a plastid-localized ancestor.''; Plant Mol Biol, 2002 PubMed Europe PMC Scholia
- Sánchez de Jiménez E, Medrano L, MartÃnez-Barajas E; ''Rubisco activase, a possible new member of the molecular chaperone family.''; Biochemistry, 1995 PubMed Europe PMC Scholia
- ''''; , PubMed Europe PMC Scholia
- Vargas-Suárez M, Ayala-Ochoa A, Lozano-Franco J, GarcÃa-Torres I, DÃaz-Quiñonez A, OrtÃz-Navarrete VF, Sánchez-de-Jiménez E; ''Rubisco activase chaperone activity is regulated by a post-translational mechanism in maize leaves.''; J Exp Bot, 2004 PubMed Europe PMC Scholia
- Li P, Ponnala L, Gandotra N, Wang L, Si Y, Tausta SL, Kebrom TH, Provart N, Patel R, Myers CR, Reidel EJ, Turgeon R, Liu P, Sun Q, Nelson T, Brutnell TP; ''The developmental dynamics of the maize leaf transcriptome.''; Nat Genet, 2010 PubMed Europe PMC Scholia
- Majeran W, van Wijk KJ; ''Cell-type-specific differentiation of chloroplasts in C4 plants.''; Trends Plant Sci, 2009 PubMed Europe PMC Scholia
- Majeran W, Cai Y, Sun Q, van Wijk KJ; ''Functional differentiation of bundle sheath and mesophyll maize chloroplasts determined by comparative proteomics.''; Plant Cell, 2005 PubMed Europe PMC Scholia
- Chris J. Chastain, Raymond Chollet; ''Regulation of pyruvate, orthophosphate dikinase by ADP-/Pi-dependent reversible phosphorylation in C3 and C4 plants''; Plant Physiology and Biochemistry; Volume 41, Issues 6-7, June 2003, Pages 523-532, 2003 DOI Scholia
- Majeran W, Friso G, Ponnala L, Connolly B, Huang M, Reidel E, Zhang C, Asakura Y, Bhuiyan NH, Sun Q, Turgeon R, van Wijk KJ; ''Structural and metabolic transitions of C4 leaf development and differentiation defined by microscopy and quantitative proteomics in maize.''; Plant Cell, 2010 PubMed Europe PMC Scholia
- Chastain CJ, Lee ME, Moorman MA, Shameekumar P, Chollet R; ''Site-directed mutagenesis of maize recombinant C4-pyruvate,orthophosphate dikinase at the phosphorylatable target threonine residue.''; FEBS Lett, 1997 PubMed Europe PMC Scholia
- Slack CR, Hatch MD, Goodchild DJ; ''Distribution of enzymes in mesophyll and parenchyma-sheath chloroplasts of maize leaves in relation to the C4-dicarboxylic acid pathway of photosynthesis.''; Biochem J, 1969 PubMed Europe PMC Scholia
- Slack CR, Hatch MD; ''Comparative studies on the activity of carboxylases and other enzymes in relation to the new pathway of photosynthetic carbon dioxide fixation in tropical grasses.''; Biochem J, 1967 PubMed Europe PMC Scholia
History
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External references
DataNodes
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Name | Type | Database reference | Comment |
---|---|---|---|
1,3-diphosphateglycerate | Metabolite | 1981-49-3 (CAS) | |
2-Ketoglutaric acid | Metabolite | CHEBI:30915 (ChEBI) | 2-oxoglutaric acid |
2-oxoglutarate/malate translocator | GeneProduct | 2-Oxoglutarate/malate translocator; DIT1 | |
3-phosphoglycerate | Metabolite | CHEBI:17050 (ChEBI) | |
AC147602.5_FG003 | GeneProduct | AC147602.5_FG003 (Gramene Maize) | |
ADP | Metabolite | CHEBI:16761 (ChEBI) | |
AMP | Metabolite | CHEBI:16027 (ChEBI) | |
ATP/ADP translocator | GeneProduct | glucose-6-phosphate transporter | |
ATP | Metabolite | CHEBI:15422 (ChEBI) | |
Active Pyruvate, phosphate dikinase | GeneProduct | 2.7.9.1 (Enzyme Nomenclature) | Active PPDK found in light conditions has a phosphorylated Histitine and a hydroxy Threonine residue. |
Aldolase | GeneProduct | 4.1.2. (Enzyme Nomenclature) | |
Aspartate aminotransferase | GeneProduct | 2.6.1.1 (Enzyme Nomenclature) | ASPTS |
CO2 | Metabolite | CHEBI:16526 (ChEBI) | |
Carbonic anhydrase | GeneProduct | 4.2.1.1 (Enzyme Nomenclature) | CA |
D-erythrose-4-phosphate | Metabolite | CHEBI:16897 (ChEBI) | |
D-fructose-1,6-phosphate | Metabolite | CHEBI:16905 (ChEBI) | |
D-fructose-6-phosphate | Metabolite | CHEBI:15946 (ChEBI) | |
D-glyceraldehyde-3-phosphate | Metabolite | CHEBI:29052 (ChEBI) | |
D-ribose-5-phosphate | Metabolite | CHEBI:16988 (ChEBI) | |
D-ribulose-1,5-bisphosphate | Metabolite | CHEBI:16710 (ChEBI) | |
D-ribulose-5-phosphate | Metabolite | CHEBI:17363 (ChEBI) | |
D-sedoheptulose-7-phosphate | Metabolite | CHEBI:15721 (ChEBI) | |
D-sedophetulose-1,7-bisphosphate | Metabolite | CHEBI:17969 (ChEBI) | |
D-xylulose-5-phosphate | Metabolite | CHEBI:16332 (ChEBI) | |
GPT | GeneProduct | glucose-6-phosphate transporter | |
GRMZM2G001696 | GeneProduct | GRMZM2G001696 (Gramene Maize) | |
GRMZM2G002807 | GeneProduct | GRMZM2G002807 (Gramene Maize) | |
GRMZM2G007263 | GeneProduct | GRMZM2G007263 (Gramene Maize) | |
GRMZM2G011507 | GeneProduct | GRMZM2G011507 (Gramene Maize) | |
GRMZM2G013900 | GeneProduct | GRMZM2G013900 (Gramene Maize) | |
GRMZM2G018177 | GeneProduct | GRMZM2G018177 (Gramene Maize) | |
GRMZM2G026024 | GeneProduct | GRMZM2G026024 (Gramene Maize) | |
GRMZM2G026807 | GeneProduct | GRMZM2G026807 (Gramene Maize) | |
GRMZM2G030784 | GeneProduct | GRMZM2G030784 (Gramene Maize) | |
GRMZM2G033208 | GeneProduct | GRMZM2G033208 (Gramene Maize) | |
GRMZM2G039345 | GeneProduct | GRMZM2G039345 (Gramene Maize) | |
GRMZM2G039723 | GeneProduct | GRMZM2G039723 (Gramene Maize) | |
GRMZM2G042146 | GeneProduct | GRMZM2G042146 (Gramene Maize) | |
GRMZM2G046284 | GeneProduct | GRMZM2G046284 (Gramene Maize) | |
GRMZM2G051630 | GeneProduct | GRMZM2G051630 (Gramene Maize) | |
GRMZM2G066413 | GeneProduct | GRMZM2G066413 (Gramene Maize) | |
GRMZM2G071423 | GeneProduct | GRMZM2G071423 (Gramene Maize) | |
GRMZM2G077222 | GeneProduct | GRMZM2G077222 (Gramene Maize) | |
GRMZM2G083016 | GeneProduct | GRMZM2G083016 (Gramene Maize) | |
GRMZM2G083841 | GeneProduct | GRMZM2G083841 (Gramene Maize) | |
GRMZM2G085019 | GeneProduct | GRMZM2G085019 (Gramene Maize) | |
GRMZM2G092678 | GeneProduct | GRMZM2G092678 (Gramene Maize) | |
GRMZM2G094165 | GeneProduct | GRMZM2G094165 (Gramene Maize) | |
GRMZM2G095287 | GeneProduct | GRMZM2G095287 (Gramene Maize) | |
GRMZM2G097457 | GeneProduct | GRMZM2G097457 (Gramene Maize) | |
GRMZM2G098520 | GeneProduct | GRMZM2G098520 (Gramene Maize) | |
GRMZM2G104070 | GeneProduct | GRMZM2G104070 (Gramene Maize) | |
GRMZM2G109708 | GeneProduct | GRMZM2G109708 (Gramene Maize) | |
GRMZM2G113033 | GeneProduct | GRMZM2G113033 (Gramene Maize) | |
GRMZM2G121878 | GeneProduct | GRMZM2G121878 (Gramene Maize) | |
GRMZM2G122479 | GeneProduct | GRMZM2G122479 (Gramene Maize) | |
GRMZM2G127591 | GeneProduct | GRMZM2G127591 (Gramene Maize) | |
GRMZM2G129513 | GeneProduct | GRMZM2G129513 (Gramene Maize) | |
GRMZM2G134544 | GeneProduct | GRMZM2G134544 (Gramene Maize) | |
GRMZM2G138258 | GeneProduct | GRMZM2G138258 (Gramene Maize) | |
GRMZM2G146677 | GeneProduct | GRMZM2G146677 (Gramene Maize) | |
GRMZM2G155253 | GeneProduct | GRMZM2G155253 (Gramene Maize) | |
GRMZM2G162200 | GeneProduct | GRMZM2G162200 (Gramene Maize) | |
GRMZM2G162282 | GeneProduct | GRMZM2G162282 (Gramene Maize) | |
GRMZM2G162529 | GeneProduct | GRMZM2G162529 (Gramene Maize) | |
GRMZM2G166424 | GeneProduct | GRMZM2G166424 (Gramene Maize) | |
GRMZM2G174107 | GeneProduct | GRMZM2G174107 (Gramene Maize) | |
GRMZM2G178960 | GeneProduct | GRMZM2G178960 (Gramene Maize) | |
GRMZM2G305851 | GeneProduct | GRMZM2G305851 (Gramene Maize) | |
GRMZM2G306732 | GeneProduct | GRMZM2G306732 (Gramene Maize) | |
GRMZM2G337113 | GeneProduct | GRMZM2G337113 (Gramene Maize) | |
GRMZM2G348512 | GeneProduct | GRMZM2G348512 (Gramene Maize) | |
GRMZM2G359038 | GeneProduct | GRMZM2G359038 (Gramene Maize) | |
GRMZM2G414528 | GeneProduct | GRMZM2G414528 (Gramene Maize) | |
GRMZM2G469150 | GeneProduct | GRMZM2G469150 (Gramene Maize) | |
H+ | Metabolite | CHEBI:15378 (ChEBI) | |
H2O | Metabolite | CHEBI:15377 (ChEBI) | |
HCO3 | Metabolite | CHEBI:17544 (ChEBI) | |
Inactive Pyruvate, phosphate dikinase | GeneProduct | 2.7.9.1 (Enzyme Nomenclature) | Inactive PPDK found in dark conditions has a phosphorylated Histitine and a phosphorylated threonine residue. |
L-Aspartate | Metabolite | CHEBI:29993 (ChEBI) | OAA |
L-Glutamate | Metabolite | CHEBI:29988 (ChEBI) | |
MEP1 | GeneProduct | ||
MEP3 | GeneProduct | ||
Malate dehydrogenase (NADP) | GeneProduct | 1.1.1.82 (Enzyme Nomenclature) | |
Malate | Metabolite | CHEBI:15595 (ChEBI) | |
Mg2+ | Metabolite | CHEBI:18420 (ChEBI) | |
NAD(P)-dependent Glyceraldehyde-3-phosphate dehydrogenase | GeneProduct | 1.2.1.59 (Enzyme Nomenclature) | |
NADP-malic enzyme | GeneProduct | 1.1.1.40 (Enzyme Nomenclature) | |
NADP | Metabolite | CHEBI:18009 (ChEBI) | |
NADPH | Metabolite | CHEBI:16474 (ChEBI) | |
Oxaloacetic acid | Metabolite | CHEBI:30744 (ChEBI) | OAA |
PO4 | Metabolite | CHEBI:18367 (ChEBI) | |
PPDK-regulatory protein | GeneProduct | PPDK | |
PPi | Metabolite | CHEBI:29888 (ChEBI) | |
Phosphoenol Pyruvate (PEP) Carboxylase | GeneProduct | 4.1.1.31 (Enzyme Nomenclature) | PEPCase |
Phosphoenolpyruvate transporter | GeneProduct | PEPT | |
Phosphoenolpyruvate | Metabolite | CHEBI:18021 (ChEBI) | PEP |
Phosphoglycerate kinase | GeneProduct | 2.7.2.3 (Enzyme Nomenclature) | |
Phosphoribulokinase | GeneProduct | 2.7.1.19 (Enzyme Nomenclature) | Also called as ribulose 5-phosphate kinase |
Pi-triose phosphate antiporter | GeneProduct | phosphate/triose-phosphate translocator | |
Pyruvate | Metabolite | CHEBI:15361 (ChEBI) | |
RBCL | GeneProduct | ||
Ribose-5-phosphate isomerase | GeneProduct | 5.3.1.6 (Enzyme Nomenclature) | |
Ribulose phosphate 3-epimerase | GeneProduct | 5.1.3.1 (Enzyme Nomenclature) | |
Ribulose-bisphosphate carboxylase | Complex | 4.1.1.39 (Enzyme Nomenclature) | |
Rubisco activase | Complex | ||
Sedoheptulose 1,7-bisphosphatase | GeneProduct | 3.1.3.37 (Enzyme Nomenclature) | |
Transketolase | GeneProduct | 2.2.1.1 (Enzyme Nomenclature) | |
Triosephosphate isomerase | GeneProduct | 5.3.1.1 (Enzyme Nomenclature) | |
dihydroxy-acetone-phosphate | Metabolite | CHEBI:16108 (ChEBI) | |
fructose 1,6-bisphosphatase | GeneProduct | 3.1.3.11 (Enzyme Nomenclature) | |
fructose-bisphosphate aldolase | GeneProduct | 4.1.2.13 (Enzyme Nomenclature) | |
phosphoenolpyruvate carboxykinase (ATP) | GeneProduct | 4.1.1.49 (Enzyme Nomenclature) | PEPCK |
Annotated Interactions
No annotated interactions