H W Heldt

Author PubWeight™ 177.09‹?›

Top papers

Rank Title Journal Year PubWeight™‹?›
1 The inner membrane of the chloroplast envelope as the site of specific metabolite transport. Biochim Biophys Acta 1971 9.73
2 The role of pH in the regulation of carbon fixation in the chloroplast stroma. Studies on CO2 fixation in the light and dark. Biochim Biophys Acta 1975 7.88
3 Metabolite levels during induction in the chloroplast and extrachloroplast compartments of spinach protoplasts. Biochim Biophys Acta 1980 6.20
4 Specific transport of inorganic phosphate, 3-phosphoglycerate and triosephosphates across the inner membrane of the envelope in spinach chloroplasts. Biochim Biophys Acta 1978 5.39
5 Accumulation of bicarbonate in intact chloroplasts following a pH gradient. Biochim Biophys Acta 1972 5.24
6 Enzymic determination of metabolites in the subcellular compartments of spinach protoplasts. Plant Physiol 1980 5.22
7 Adenine nucleotide levels in the cytosol, chloroplasts, and mitochondria of wheat leaf protoplasts. Plant Physiol 1982 5.05
8 A role for fructose 2,6-bisphosphate in the regulation of sucrose synthesis in spinach leaves. Plant Physiol 1983 4.93
9 Subcellular Metabolite Levels in Spinach Leaves : Regulation of Sucrose Synthesis during Diurnal Alterations in Photosynthetic Partitioning. Plant Physiol 1987 4.93
10 Measurement of subcellular metabolite levels in leaves by fractionation of freeze-stopped material in nonaqueous media. Plant Physiol 1984 4.32
11 The distribution of metabolites between spinach chloroplasts and medium during photosynthesis in vitro. Biochim Biophys Acta 1977 4.24
12 The mechanism of the control of carbon fixation by the pH in the chloroplast stroma. Studies with nitrite-mediated proton transfer across the envelope. Biochim Biophys Acta 1978 3.88
13 Control of Photosynthetic Sucrose Synthesis by Fructose 2,6-Bisphosphate : II. Partitioning between Sucrose and Starch. Plant Physiol 1984 3.35
14 Amino Acid and sucrose content determined in the cytosolic, chloroplastic, and vacuolar compartments and in the Phloem sap of spinach leaves. Plant Physiol 1991 3.30
15 Control of Photosynthetic Sucrose Synthesis by Fructose 2,6-Bisphosphate : I. Coordination of CO(2) Fixation and Sucrose Synthesis. Plant Physiol 1984 3.27
16 Regulation of Sucrose Synthesis by Cytoplasmic Fructosebisphosphatase and Sucrose Phosphate Synthase during Photosynthesis in Varying Light and Carbon Dioxide. Plant Physiol 1983 3.20
17 Light-dependent changes of the Mg2+ concentration in the stroma in relation to the Mg2+ dependency of CO2 fixation in intact chloroplasts. Biochim Biophys Acta 1976 3.11
18 Limitation of Photosynthesis by Carbon Metabolism : II. O(2)-Insensitive CO(2) Uptake Results from Limitation Of Triose Phosphate Utilization. Plant Physiol 1986 3.10
19 Fructose-and sedoheptulosebisphosphatase. The sites of a possible control of CO2 fixation by lightdependent changes of the stromal Mg2+ concentration. Biochim Biophys Acta 1977 2.59
20 Rapid fractionation of wheat leaf protoplasts using membrane filtration : the determination of metabolite levels in the chloroplasts, cytosol, and mitochondria. Plant Physiol 1982 2.57
21 Dicarboxylate transport across the inner membrane of the chloroplast envelope. Biochim Biophys Acta 1978 2.47
22 Redox Transfer across the Inner Chloroplast Envelope Membrane. Plant Physiol 1991 2.35
23 Subcellular metabolite concentrations. Dependence of mitochondrial and cytosolic ATP systems on the metabolic state of perfused rat liver. Eur J Biochem 1978 2.30
24 Phloem Transport of Amino Acids in Relation to their Cytosolic Levels in Barley Leaves. Plant Physiol 1992 2.25
25 Control of Photosynthetic Sucrose Synthesis by Fructose 2,6-Bisphosphate : III. Properties of the Cytosolic Fructose 1,6-Bisphosphatase. Plant Physiol 1984 2.25
26 Physiological rates of starch breakdown in isolated intact spinach chloroplasts. Plant Physiol 1981 2.24
27 On the Role of Mitochondrial Oxidative Phosphorylation in Photosynthesis Metabolism as Studied by the Effect of Oligomycin on Photosynthesis in Protoplasts and Leaves of Barley (Hordeum vulgare). Plant Physiol 1991 2.11
28 Unspecific permeation and specific exchange of adenine nucleotides in liver mitochondria. Biochim Biophys Acta 1965 2.00
29 Specific labelling of a protein involved in phosphate transport of chloroplasts by pyridoxal-5'-phosphate. FEBS Lett 1977 1.78
30 Adenine nucleotide translocation of mitochondria. Kinetics of the adenine nucleotide exchange. Eur J Biochem 1969 1.75
31 Apoplastic expression of yeast-derived invertase in potato : effects on photosynthesis, leaf solute composition, water relations, and tuber composition. Plant Physiol 1992 1.74
32 Energy charge, phosphorylation potential and proton motive force in chloroplasts. Biochim Biophys Acta 1980 1.74
33 On the Participation of Phosphoribulokinase in the Light Regulation of CO(2) Fixation. Plant Physiol 1982 1.67
34 Balance between Metabolite Accumulation and Transport in Relation to Photosynthesis by Isolated Spinach Chloroplasts. Plant Physiol 1980 1.65
35 Measurement of the ATP/ADP ratio in mitochondria and in the extramitochondrial compartment by fractionation of freeze-stopped liver tissue in non-aqueous media. Hoppe Seylers Z Physiol Chem 1974 1.61
36 Transport of hexoses across the liver-cell membrane. Eur J Biochem 1977 1.53
37 Metabolite diffusion into bundle sheath cells from c(4) plants: relation to c(4) photosynthesis and plasmodesmatal function. Plant Physiol 1988 1.53
38 The activation of ribulose 1,5-bisphosphate carboxylase/oxygenase. Basic Life Sci 1978 1.52
39 Differences between the ATP-ADP ratios in the mitochondrial matrix and in the extramitochondrial space. Eur J Biochem 1972 1.49
40 Control of Photosynthetic Sucrose Synthesis by Fructose 2,6-Bisphosphate : V. Modulation of the Spinach Leaf Cytosolic Fructose 1,6-Bisphosphatase Activity in Vitro by Substrate, Products, pH, Magnesium, Fructose 2,6-Bisphosphate, Adenosine Monophosphate, and Dihydroxyacetone Phosphate. Plant Physiol 1985 1.48
41 Synthesis, storage, and stability of [4-14C]oxaloacetic acid. Anal Biochem 1985 1.47
42 Control of Photosynthetic Sucrose Synthesis by Fructose 2,6-Bisphosphate : VI. Regulation of the Cytosolic Fructose 1,6-Bisphosphatase in Spinach Leaves by an Interaction between Metabolic Intermediates and Fructose 2,6-Bisphosphate. Plant Physiol 1985 1.43
43 Assay of nucleotides and other phosphate-containing compounds in isolated chloroplasts by ion exchange chromatography. Anal Biochem 1980 1.42
44 The participation of GTP-AMP-P transferase in substrate level phosphate transfer of rat liver mitochondria. Eur J Biochem 1967 1.37
45 Inorganic pyrophosphate: formation in bacterial photophosphorylation. Science 1966 1.37
46 Differences between the reactivity of endogenous and exogenous adenine nucleotides in mitochondria as studied at low temperature. Eur J Biochem 1968 1.33
47 High activity of creatine kinase in mitochondria from muscle and brain and evidence for a separate mitochondrial isoenzyme of creatine kinase. Biochem Biophys Res Commun 1964 1.30
48 The response of the respiratory chain and adenine nucleotide system to oxidative phosphorylation in yeast mitochondria. Eur J Biochem 1967 1.24
49 Antisense repression of the chloroplast triose phosphate translocator affects carbon partitioning in transgenic potato plants. Proc Natl Acad Sci U S A 1993 1.22
50 Porins from plants. Molecular cloning and functional characterization of two new members of the porin family. J Biol Chem 1994 1.19
51 Coarse control of sucrose-phosphate synthase in leaves: Alterations of the kinetic properties in response to the rate of photosynthesis and the accumulation of sucrose. Planta 1988 1.17
52 Purification, molecular cloning, and sequence analysis of sucrose-6F-phosphate phosphohydrolase from plants. Proc Natl Acad Sci U S A 2000 1.15
53 On the regulation of spinach nitrate reductase. Plant Physiol 1990 1.15
54 A Two-Translocator Model for the Transport of 2-Oxoglutarate and Glutamate in Chloroplasts during Ammonia Assimilation in the Light. Plant Physiol 1987 1.13
55 Decrease of Nitrate Reductase Activity in Spinach Leaves during a Light-Dark Transition. Plant Physiol 1992 1.12
56 Subcellular distribution of di- and tricarboxylates and pH gradients in perfused rat liver. Hoppe Seylers Z Physiol Chem 1980 1.09
57 Specific labelling of the active site of the phosphate translocator in spinach chloroplasts by 2,4,6-trinitrobenzene sulfonate. Biochem Biophys Res Commun 1978 1.09
58 On the inhibition of the adenine nucleotide translocation by bongkrekic acid. Biochem Biophys Res Commun 1970 1.07
59 Identification of a protein involved in phosphate transport of chloroplasts. FEBS Lett 1976 1.04
60 The simultaneous determination of carbon dioxide release and oxygen uptake in suspensions of plant leaf mitochondria oxidizing glycine. Plant Physiol 1987 1.02
61 Permeability properties of the porin of spinach leaf peroxisomes. Eur J Biochem 1998 0.99
62 The membrane of leaf peroxisomes contains a porin-like channel. J Biol Chem 1995 0.96
63 Binding of guanine nucleotides to the outer surface of the inner membrane of guinea pig brown fat mitochondria in correlation with the thermogenic activity of the tissue. FEBS Lett 1976 0.95
64 Oxaloacetate and malate transport by plant mitochondria. Plant Physiol 1988 0.93
65 Compartmentation studies on spinach leaf peroxisomes : evidence for channeling of photorespiratory metabolites in peroxisomes devoid of intact boundary membrane. Plant Physiol 1991 0.92
66 Solute accumulation and decreased photosynthesis in leaves of potato plants expressing yeast-derived invertase either in the apoplast, vacuole or cytosol. Planta 1997 0.91
67 N-ammonia assimilation, 2-oxoglutarate transport, and glutamate export in spinach chloroplasts in the presence of dicarboxylates in the light. Plant Physiol 1987 0.91
68 Phosphate Translocator of Mesophyll and Bundle Sheath Chloroplasts of a C(4) Plant, Panicum miliaceum L. : Identification and Kinetic Characterization. Plant Physiol 1989 0.89
69 A specific porin is involved in the malate shuttle of leaf peroxisomes. Biochem Soc Trans 1996 0.89
70 Effects of inorganic phosphate on the light dependent thylakoid energization of intact spinach chloroplasts. Plant Physiol 1989 0.88
71 [Quantitative determination of reduced and oxidized pyridine nucleotides by ion exchange chromatography]. Biochem Z 1965 0.87
72 A comparative study of metabolite levels in plant leaf material in the dark. Planta 1985 0.86
73 Transfer of substrates across the chloroplast envelope. Horiz Biochem Biophys 1976 0.86
74 Changes in the subcellular distribution of metabolites due to ethanol oxidation in the perfused rat liver. Hoppe Seylers Z Physiol Chem 1981 0.86
75 Protein organization in the matrix of leaf peroxisomes. A multi-enzyme complex involved in photorespiratory metabolism. Eur J Biochem 1994 0.86
76 Alanine synthesis by bundle sheath cells of maize. Plant Physiol 1991 0.85
77 Comparison of the kinetic properties, inhibition and labelling of the phosphate translocators from maize and spinach mesophyll chloroplasts. Planta 1990 0.84
78 Identification of two general diffusion channels in the outer membrane of pea mitochondria. Biochim Biophys Acta 1992 0.83
79 Endogenous nucleotides of mitochondria participating in phosphate transfer reactions as studied with 32P labelled orthophosphate and ultramicro scale ion exchange chromatography. Biochem Z 1965 0.83
80 Regulation of sedoheptulose-1,7-bisphosphatase by sedoheptulose-7-phosphate and glycerate, and of fructose-1,6-bisphosphatase by glycerate in spinach chloroplasts. Planta 1990 0.83
81 On the problem of acid-labile triphosphopyridine nucleotide in biological material. J Biol Chem 1965 0.81
82 Inter- and intracellular distribution of amino acids and other metabolites in maize (Zea mays L.) leaves. Planta 1992 0.81
83 Metabolite measurements in mitochondria and in the extramitochondrial compartment by fractionation of freeze-stopped liver tissue in nonaqueous media. Methods Enzymol 1979 0.81
84 Involvement of na in active uptake of pyruvate in mesophyll chloroplasts of some c(4) plants : na/pyruvate cotransport. Plant Physiol 1990 0.80
85 Adenine nucleotide translocation in mitochondria. Quantitative evaluation of the correlation between the phosphorylation of endogenous and exogenous ADP in mitochondria. Eur J Biochem 1969 0.78
86 Control of photosynthetic sucrose synthesis by fructose-2,6-bisphosphate : Intercellular metabolite distribution and properties of the cytosolic fructosebisphosphatase in leaves of Zea mays L. Planta 1985 0.78
87 Control of CO2 fixation regulation of stromal fructose-1,6-bisphosphatase in spinach by pH and Mg(2+) concentration. Planta 1986 0.76
88 The mechanism of the control of carbon fixation by the pH in the chloroplast stroma : Studies with acid mediated proton transfer across the envelope. Planta 1980 0.76
89 Evidence for the expression of the triosephosphate translocator gene in green and non-green tissue of tomato and potato. Plant Mol Biol 1996 0.75
90 Differences between the phosphorylation potentials of adenosine triphosphate inside and outside the mitochondria. Biochem J 1970 0.75
91 [Adenine nucleotide translocation in spinach chloroplasts]. Hoppe Seylers Z Physiol Chem 1969 0.75
92 Characteristics of 2-oxoglutarate and glutamate transport in spinach chloroplasts : Studies with a double-silicone-layer centrifugation technique and in liposomes. Planta 1988 0.75
93 [Measurement of the ATP-ADP quotients in mitochondria and extramitochondrial space by fractionation of freeze stopped liver tissue using nonliquid media]. Hoppe Seylers Z Physiol Chem 1972 0.75
94 Proceedings: Metabolite uptake into isolated liver cells as measured by silicone layer filtering centrifugation. Hoppe Seylers Z Physiol Chem 1974 0.75
95 Dependence of mitochondrial and cytosolic ATP systems on the metabolic state of perfused rat liver. Adv Exp Med Biol 1980 0.75
96 Energy metabolism in mitochondria. Angew Chem Int Ed Engl 1972 0.75
97 Synthesis of glutamine and glutamate by intact bundle-sheath cells of maize (Zea mays L.). Planta 1992 0.75
98 Distribution of metabolites between mitochondria and cytosol of cultured fibroblastoid rat heart cells. FEBS Lett 1979 0.75