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Amino acids in sandal (Santalum album L) with special reference to cis-4-hydroxy-l-proline and sym. homospermidine.

Kuttan R, Panikkar B, Binitha PP - Springerplus (2015)

Bottom Line: Sandal also contains sym. homospermidine which is not present in any other plants till today.Moreover sandal leaves contain γ-glutamyl derivative of the lachrymatory precursor of onion, γ-glutamyl-S-propenyl cysteine superoxide.This review summarizes the studies on the amino acids in sandal.

View Article: PubMed Central - PubMed

Affiliation: Amala Cancer Research Centre, Amala Nagar, Thrissur, Kerala 680555 India.

ABSTRACT
Sandal (Santalum album L) contains several interesting amino acids and amines which are not seen in other plants. This includes cis-4-hydroxy-l-proline in free form in leaves, flowers and seeds while trans-4-hydroxy-l-proline in bound form. Traces of 3, 4 dehydroproline is also detected in sandal leaves. Biosynthesis of cis-4-hydroxy proline indicates that hydroxylation taken place at proline present in peptidyl form especially bound to glutamic acid and aspartic acid. Pyrrolizidine-2-carboxylic acid an interesting isatin positive heterocyclic compound is also present in sandal leaves. Sandal also contains sym. homospermidine which is not present in any other plants till today. Biosynthesis of sym. homospermidine goes by a unique pathway of putrescine oxidation, Schiff base formation, condensation and reduction. Moreover sandal leaves contain γ-glutamyl derivative of the lachrymatory precursor of onion, γ-glutamyl-S-propenyl cysteine superoxide. This review summarizes the studies on the amino acids in sandal.

No MeSH data available.


Related in: MedlinePlus

Production of lachrymatory factor from γ-glutamyl-s-propenyl-l-cysteine Sulfoxide
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Fig8: Production of lachrymatory factor from γ-glutamyl-s-propenyl-l-cysteine Sulfoxide

Mentions: The sulfoxide diasterioisomer of GPCS had previously been isolated from onion (Allium cepa) by Virtanen and Matikkala (Virtanen and Matikkala 1961), who showed that cleavage of the glutamyl peptide bond with a beef kidney preparation, yielded the so called lachrymatory precursor, also found in the onion. When lachrymatory precursor was exposed to an enzyme released from crushed onion, pyruvate, ammonia and the onion lachrymatory factor are formed (Fig. 8).Fig. 8


Amino acids in sandal (Santalum album L) with special reference to cis-4-hydroxy-l-proline and sym. homospermidine.

Kuttan R, Panikkar B, Binitha PP - Springerplus (2015)

Production of lachrymatory factor from γ-glutamyl-s-propenyl-l-cysteine Sulfoxide
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4582034&req=5

Fig8: Production of lachrymatory factor from γ-glutamyl-s-propenyl-l-cysteine Sulfoxide
Mentions: The sulfoxide diasterioisomer of GPCS had previously been isolated from onion (Allium cepa) by Virtanen and Matikkala (Virtanen and Matikkala 1961), who showed that cleavage of the glutamyl peptide bond with a beef kidney preparation, yielded the so called lachrymatory precursor, also found in the onion. When lachrymatory precursor was exposed to an enzyme released from crushed onion, pyruvate, ammonia and the onion lachrymatory factor are formed (Fig. 8).Fig. 8

Bottom Line: Sandal also contains sym. homospermidine which is not present in any other plants till today.Moreover sandal leaves contain γ-glutamyl derivative of the lachrymatory precursor of onion, γ-glutamyl-S-propenyl cysteine superoxide.This review summarizes the studies on the amino acids in sandal.

View Article: PubMed Central - PubMed

Affiliation: Amala Cancer Research Centre, Amala Nagar, Thrissur, Kerala 680555 India.

ABSTRACT
Sandal (Santalum album L) contains several interesting amino acids and amines which are not seen in other plants. This includes cis-4-hydroxy-l-proline in free form in leaves, flowers and seeds while trans-4-hydroxy-l-proline in bound form. Traces of 3, 4 dehydroproline is also detected in sandal leaves. Biosynthesis of cis-4-hydroxy proline indicates that hydroxylation taken place at proline present in peptidyl form especially bound to glutamic acid and aspartic acid. Pyrrolizidine-2-carboxylic acid an interesting isatin positive heterocyclic compound is also present in sandal leaves. Sandal also contains sym. homospermidine which is not present in any other plants till today. Biosynthesis of sym. homospermidine goes by a unique pathway of putrescine oxidation, Schiff base formation, condensation and reduction. Moreover sandal leaves contain γ-glutamyl derivative of the lachrymatory precursor of onion, γ-glutamyl-S-propenyl cysteine superoxide. This review summarizes the studies on the amino acids in sandal.

No MeSH data available.


Related in: MedlinePlus