Literature summary for 1.5.1.11 extracted from

  • Lagana, G.; Barreca, D.; Giacobbe, S.; Bellocco, E.
    Anaerobiosis and metabolic plasticity of Pinna nobilis biochemical and ecological features (2014), Biochem. Syst. Ecol., 56, 138-143 .
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
additional information the enzyme activity in adductor muscle increases following the marine-brackish gradient Pinna nobilis

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
L-arginine + pyruvate + NADH + H+ Pinna nobilis
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N2-(D-1-carboxyethyl)-L-arginine + NAD+ + H2O
-
?

Organism

Organism UniProt Comment Textmining
Pinna nobilis
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collected in the straits of Messina area (central Mediterranean) between May and June of 2011, from two nearby marine and brackish-water sites, two populations
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Source Tissue

Source Tissue Comment Organism Textmining
additional information enzyme tissue distribution and expression analysis Pinna nobilis
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gill
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Pinna nobilis
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hepatopancreas very low enzyme content Pinna nobilis
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mantle
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Pinna nobilis
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adductor muscle ODH is the major opine dehydrogenase in the adductor muscle Pinna nobilis
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Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-arginine + pyruvate + NADH + H+
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Pinna nobilis N2-(D-1-carboxyethyl)-L-arginine + NAD+ + H2O
-
?

Synonyms

Synonyms Comment Organism
ODH
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Pinna nobilis

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
25
-
assay at Pinna nobilis

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
assay at Pinna nobilis

Cofactor

Cofactor Comment Organism Structure
NAD+
-
Pinna nobilis
NADH
-
Pinna nobilis

General Information

General Information Comment Organism
metabolism bivalves have evolved diverse and highly specialised strategies for surviving in hypoxic episodes including pathways that are efficient both in terms of ATP production, and in minimising H+ and toxic end product accumulation. Under these circumstances, glycogen is metabolized to pyruvate and the cytosolic NADH/NAD+ redox ratio is balanced by the reduction of pyruvate to lactate. Alternatively, NAD+ can be recycled more efficiently by coupling an amino acid to pyruvate, with formation of opines such as alanopine, tauropine, octopine, and strombine. Specimens utilizing the octopine rather than the alanopine pathway will increase energy flow rapidly, developing a major ability to counteract environmental variations. The high ratio between malate dehydrogenase/lactate dehydrogenase is due to the ability of Pinna nobilis to turn on anaerobic metabolism as a consequence of environmental or anthropogenic stresses. Anaerobic pathways are not all equivalent in terms of energy production based upon maximum rates for ATP output (lactate > octopine > alanopine = strombine). The ODH pathway is probably able to realize a higher rate of energy production than either the SDH or ADH pathways Pinna nobilis
additional information comparisons of opine dehydrogenases activities (octopine dehydrogenase, alanopine dehydrogenase, strombine dehydrogenase, and tauropine dehydrogenase) in the adductor muscle, overview. The ODH activity in adductor muscle increases following the marine-brackish gradient, while the one of ADH, SDH and TDH decreases following the same gradient Pinna nobilis