Cannabis Compound Database: Showing Compound Card for L-Isoleucine (CDB000132)

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Record Information

Version

1.0

Created at

2020-03-18 23:25:58 UTC

Updated at

2022-12-13 23:36:23 UTC

CannabisDB ID

CDB000132

Secondary Accession Numbers

Not Available

Cannabis Compound Identification

Common Name

L-Isoleucine

Description

L-isoleucine or isoleucine, abbreviated as Ile or I, is one of the essential amino acids used in the biosynthesis of proteins. It contains an Œ±-amino group (which is in the protonated ‚àíNH3+ form under biological conditions), an Œ±-carboxylic acid group (which is in the deprotonated ‚àíCOO‚àí form under biological conditions), and a hydrocarbon side chain with a branch (a central carbon atom bound to three other carbon atoms). It is classified as a non-polar, uncharged (at physiological pH), branched-chain, aliphatic amino acid. In plants and microorganisms, it is synthesized via several steps, starting from pyruvate and alpha-ketobutyrate. Isoleucine is one of the three branched chain amino acids (BCAA), together with leucine and valine. Branched chain amino acids (BCAA) are essential amino acids whose carbon structure is marked by a branch point. Isoleucine is less concentrated in foods compared to leucine and valine. A cup of milk contains 800 mg of leucine and only 500 mg of isoleucine and valine. A cup of wheat germ has about 1.6 g of leucine and 1 g of isoleucine and valine. Eggs and cheese have about equal amounts of the BCAA and contain about 400 mg of leucine and 400 mg of valine and isoleucine. Pork contains 7 to 8 g of leucine and 3 to 4 g of isoleucine and valine. L-isoleucine is also found in Cannabis plants (PMID: 6991645 ). These BCAA are critical to human life and are particularly involved in stress, energy and muscle metabolism. BCAA supplementation as therapy, both oral and intravenous, in human health and disease holds great promise. Despite their structural similarities, the branched amino acids have different metabolic routes, with valine going solely to carbohydrates, leucine solely to fats and isoleucine to both. The different metabolism accounts for different requirements for these essential amino acids in humans: 12 mg/kg, 14 mg/kg and 16 mg/kg of valine, leucine, and isoleucine, respectively. Furthermore, these amino acids have different deficiency symptoms. Valine deficiency is marked by neurological defects in the brain, while isoleucine deficiency is marked by muscle tremors. BCAA are decreased in patients with liver disease, such as hepatitis, hepatic coma, cirrhosis, extrahepatic biliary atresia or portacaval shunt; aromatic amino acids (AAA)-tyrosine, tryptophan and phenylalanine, as well as methionine-are increased in these conditions. Valine has been established as a useful supplemental therapy to the ailing liver. All the BCAA probably compete with AAA for absorption into the brain. Supplemental BCAA with vitamin B6 and zinc help normalize the BCAA:AAA ratio. The BCAA are not without side effects. Leucine alone, for example, exacerbates pellagra and can cause psychosis in pellagra patients by increasing excretion of niacin in the urine. Leucine may lower brain serotonin and dopamine whereas isoleucine may have potential as an antipsychotic treatment. A dose of 3 g of isoleucine added to the niacin regime cleared leucine-aggravated psychosis in schizophrenic patients. Moreover, L-isoleucine is associated with maple syrup urine disease (MSUD; PMID: 10234605 ), which is an inborn error of metabolism, so named for the sweet, maple syrup smell of urine. MSUD is an autosomal recessive disorder that affects the metabolism of the BCAA. Mutations occur in the 4 genes that comprise the branched-chain alpha-keto acid dehydrogenase complex, which breaks down the BCAA.

Structure

MOL SDF 3D-SDF PDB SMILES InChI View 3D Structure

Synonyms

Value	Source
(2S,3S)-2-Amino-3-methylpentanoic acid	ChEBI
2-Amino-3-methylvaleric acid	ChEBI
alpha-Amino-beta-methylvaleric acid	ChEBI
I	ChEBI
Ile	ChEBI
ISOLEUCINE	ChEBI
(2S,3S)-2-Amino-3-methylpentanoate	Generator
2-Amino-3-methylvalerate	Generator
a-Amino-b-methylvalerate	Generator
a-Amino-b-methylvaleric acid	Generator
alpha-Amino-beta-methylvalerate	Generator
Α-amino-β-methylvalerate	Generator
Α-amino-β-methylvaleric acid	Generator
(2S,3S)-2-Amino-3-methyl-pentanoate	HMDB
(2S,3S)-2-Amino-3-methyl-pentanoic acid	HMDB
(2S,3S)-a-Amino-b-methyl-N-valerate	HMDB
(2S,3S)-a-Amino-b-methyl-N-valeric acid	HMDB
(2S,3S)-a-Amino-b-methylvalerate	HMDB
(2S,3S)-a-Amino-b-methylvaleric acid	HMDB
(2S,3S)-Alph-amino-beta-methylvalerate	HMDB
(2S,3S)-Alph-amino-beta-methylvaleric acid	HMDB
(2S,3S)-alpha-Amino-beta-merthyl-N-valerate	HMDB
(2S,3S)-alpha-Amino-beta-merthyl-N-valeric acid	HMDB
(2S,3S)-alpha-Amino-beta-merthylvalerate	HMDB
(2S,3S)-alpha-Amino-beta-merthylvaleric acid	HMDB
(2S,3S)-alpha-Amino-beta-methyl-N-valerate	HMDB
(2S,3S)-alpha-Amino-beta-methyl-N-valeric acid	HMDB
(2S,3S)-alpha-Amino-beta-methylvalerate	HMDB
(2S,3S)-alpha-Amino-beta-methylvaleric acid	HMDB
(S)-Isoleucine	HMDB
(S,S)-Isoleucine	HMDB
2-Amino-3-methylpentanoate	HMDB
2-Amino-3-methylpentanoic acid	HMDB
2S,3S-Isoleucine	HMDB
Erythro-L-isoleucine	HMDB
Iso-leucine	HMDB
L-(+)-Isoleucine	HMDB
L-Ile	HMDB
[S-(R,r)]-2-amino-3-methylpentanoate	HMDB
[S-(R,r)]-2-amino-3-methylpentanoic acid	HMDB
Isoleucine, L-isomer	HMDB
Alloisoleucine	HMDB
Isoleucine, L isomer	HMDB
L-Isomer isoleucine	HMDB
2S-Amino-3S-methylpentanoate	HMDB
L-Isoleucine	KEGG

Chemical Formula

C₆H₁₃NO₂

Average Molecular Weight

131.17

Monoisotopic Molecular Weight

131.0946

IUPAC Name

(2S,3S)-2-amino-3-methylpentanoic acid

Traditional Name

L-isoleucine

CAS Registry Number

73-32-5

SMILES

CC[C@H](C)[C@H](N)C(O)=O

InChI Identifier

InChI=1S/C6H13NO2/c1-3-4(2)5(7)6(8)9/h4-5H,3,7H2,1-2H3,(H,8,9)/t4-,5-/m0/s1

InChI Key

AGPKZVBTJJNPAG-WHFBIAKZSA-N

Chemical Taxonomy

Description

Belongs to the class of organic compounds known as isoleucine and derivatives. Isoleucine and derivatives are compounds containing isoleucine or a derivative thereof resulting from reaction of isoleucine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom.

Kingdom

Organic compounds

Super Class

Organic acids and derivatives

Class

Carboxylic acids and derivatives

Sub Class

Amino acids, peptides, and analogues

Direct Parent

Isoleucine and derivatives

Alternative Parents

Substituents

Isoleucine or derivatives
Alpha-amino acid
L-alpha-amino acid
Branched fatty acid
Methyl-branched fatty acid
Fatty acid
Fatty acyl
Amino acid
Monocarboxylic acid or derivatives
Carboxylic acid
Organic oxide
Organopnictogen compound
Primary amine
Organooxygen compound
Organonitrogen compound
Primary aliphatic amine
Carbonyl group
Organic oxygen compound
Amine
Organic nitrogen compound
Hydrocarbon derivative
Aliphatic acyclic compound

Molecular Framework

Aliphatic acyclic compounds

External Descriptors

aspartate family amino acid (CHEBI:17191 )
proteinogenic amino acid (CHEBI:17191 )
L-alpha-amino acid (CHEBI:17191 )
isoleucine (CHEBI:17191 )
Common amino acids (C00407 )
Amino fatty acids (LMFA01100047 )

Ontology

Heart failure

Cancer:

Leukemia

Disposition

Route of exposure:

Enteral:

Ingestion

Source:

Food

Synthetic:

Personal care product

Biological:

Animal

Plant:

Biological location:

Tissue and substructures:

Organ and components:

Prostate

Biofluid and excreta:

Subcellular:

Cell and elements:

Extracellular

Role

Industrial application:

Pharmaceutical industry:

Pharmaceutical

Biological role:

Essential amino acid

Physical Properties

State

Solid

Experimental Properties

Property	Value	Reference
Melting Point	285.5 °C	Not Available
Boiling Point	Not Available	Not Available
Water Solubility	35 mg/mL	Human Metabolome Project
logP	-1.70	HANSCH,C ET AL. (1995)

Predicted Properties

Property	Value	Source
logP	-1.7	ALOGPS
logP	-1.5	ChemAxon
logS	-0.06	ALOGPS
pKa (Strongest Acidic)	2.79	ChemAxon
pKa (Strongest Basic)	9.59	ChemAxon
Physiological Charge	0	ChemAxon
Hydrogen Acceptor Count	3	ChemAxon
Hydrogen Donor Count	2	ChemAxon
Polar Surface Area	63.32 Å²	ChemAxon
Rotatable Bond Count	3	ChemAxon
Refractivity	34.09 m³·mol⁻¹	ChemAxon
Polarizability	14.11 Å³	ChemAxon
Number of Rings	0	ChemAxon
Bioavailability	Yes	ChemAxon
Rule of Five	Yes	ChemAxon
Ghose Filter	No	ChemAxon
Veber's Rule	No	ChemAxon
MDDR-like Rule	No	ChemAxon

Spectra

EI-MS/GC-MS

Type	Description	Splash Key	View
EI-MS	Mass Spectrum (Electron Ionization)	splash10-004r-9000000000-34d4d4cb7042da231eb4	2014-09-20	View Spectrum
GC-MS	L-Isoleucine, 2 TMS, GC-MS Spectrum	splash10-0a4i-0930000000-e78f845bb2a8d4736476	Spectrum
GC-MS	L-Isoleucine, 2 TMS, GC-MS Spectrum	splash10-0a4i-0910000000-de9162d149073d0e2a37	Spectrum
GC-MS	L-Isoleucine, 2 TMS, GC-MS Spectrum	splash10-0a4i-0920000000-599e61f8ccdb6525c7a9	Spectrum
GC-MS	L-Isoleucine, non-derivatized, GC-MS Spectrum	splash10-0a4i-0910000000-742e44c426c0d6c2a9ac	Spectrum
GC-MS	L-Isoleucine, 2 TMS, GC-MS Spectrum	splash10-05fr-8910000000-dbb33e0f02ac2ca5fedd	Spectrum
GC-MS	L-Isoleucine, non-derivatized, GC-MS Spectrum	splash10-0a4i-0920000000-37690f426455ac41e2c2	Spectrum
GC-MS	L-Isoleucine, non-derivatized, GC-MS Spectrum	splash10-0a4i-0930000000-e78f845bb2a8d4736476	Spectrum
GC-MS	L-Isoleucine, non-derivatized, GC-MS Spectrum	splash10-0a4i-0910000000-de9162d149073d0e2a37	Spectrum
GC-MS	L-Isoleucine, non-derivatized, GC-MS Spectrum	splash10-0a4i-0920000000-599e61f8ccdb6525c7a9	Spectrum
GC-MS	L-Isoleucine, non-derivatized, GC-MS Spectrum	splash10-0a4i-0910000000-742e44c426c0d6c2a9ac	Spectrum
GC-MS	L-Isoleucine, non-derivatized, GC-MS Spectrum	splash10-0udi-2392000000-74cca1eb265b8e3d7f43	Spectrum
GC-MS	L-Isoleucine, non-derivatized, GC-MS Spectrum	splash10-05fr-8910000000-dbb33e0f02ac2ca5fedd	Spectrum
GC-MS	L-Isoleucine, non-derivatized, GC-MS Spectrum	splash10-000i-9100000000-27891dff695c5db53796	Spectrum
GC-MS	L-Isoleucine, non-derivatized, GC-MS Spectrum	splash10-0a4i-0910000000-43ec1890f6dbd6aea657	Spectrum
Predicted GC-MS	L-Isoleucine, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positive	splash10-00b9-9100000000-40bc9ef43da5f18be883	Spectrum
Predicted GC-MS	L-Isoleucine, 1 TMS, Predicted GC-MS Spectrum - 70eV, Positive	splash10-000i-9200000000-ae8694c0f3e4dcc608f9	Spectrum
Predicted GC-MS	L-Isoleucine, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	L-Isoleucine, TMS_1_2, Predicted GC-MS Spectrum - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	L-Isoleucine, TBDMS_1_1, Predicted GC-MS Spectrum - 70eV, Positive	Not Available	Spectrum
Predicted GC-MS	L-Isoleucine, TBDMS_1_2, Predicted GC-MS Spectrum - 70eV, Positive	Not Available	Spectrum

MS/MS

Type	Description	Splash Key	View
MS/MS	LC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)	splash10-000i-9300000000-8a23b3e62231eb65f80f	2012-07-24	View Spectrum
MS/MS	LC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)	splash10-00ko-9000000000-ac7e71578d7e1d0e8ce9	2012-07-24	View Spectrum
MS/MS	LC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)	splash10-052f-9000000000-2586d4a089921dd977ed	2012-07-24	View Spectrum
MS/MS	LC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positive	splash10-001i-0900000000-5b11521ff6a631376d2b	2012-08-31	View Spectrum
MS/MS	LC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positive	splash10-000i-9000000000-3c352f229e4067fcd489	2012-08-31	View Spectrum
MS/MS	LC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positive	splash10-000i-9000000000-8a7ef48fc0c1b6f845c2	2012-08-31	View Spectrum
MS/MS	LC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positive	splash10-0002-0920000000-2e11aa1c7a5defc386db	2012-08-31	View Spectrum
MS/MS	LC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positive	splash10-001i-0900000000-b63ac9cf06eda4c54a81	2012-08-31	View Spectrum
MS/MS	LC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positive	splash10-000i-9000000000-e5b0c8c6b09f541d6dbf	2012-08-31	View Spectrum
MS/MS	LC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positive	splash10-000i-9000000000-d89d16d5c2242e44ec63	2012-08-31	View Spectrum
MS/MS	LC-MS/MS Spectrum - LC-ESI-ITFT (LTQ Orbitrap XL, Thermo Scientfic) , Positive	splash10-000i-9000000000-5de583142c7bdb381c8f	2012-08-31	View Spectrum
MS/MS	LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 10V, Negative	splash10-001i-0900000000-8c75bde35c4a4073ee65	2012-08-31	View Spectrum
MS/MS	LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 20V, Negative	splash10-001i-0900000000-233a9862f616afea2d17	2012-08-31	View Spectrum
MS/MS	LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 30V, Negative	splash10-001i-1900000000-375f35065b82b13e6d6e	2012-08-31	View Spectrum
MS/MS	LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 40V, Negative	splash10-00dl-9000000000-d0d4a9f90fe2aca74483	2012-08-31	View Spectrum
MS/MS	LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 50V, Negative	splash10-0006-9000000000-0018f47571feaf232ff8	2012-08-31	View Spectrum
MS/MS	LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 10V, Positive	splash10-001r-7900000000-278dc67396114be331ba	2012-08-31	View Spectrum
MS/MS	LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 20V, Positive	splash10-000i-9000000000-e26c042aa6231eeca071	2012-08-31	View Spectrum
MS/MS	LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 30V, Positive	splash10-014r-9000000000-b6c1752fd3fbccb3d1c5	2012-08-31	View Spectrum
MS/MS	LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 40V, Positive	splash10-05mo-9000000000-0569c3162621252ed0a8	2012-08-31	View Spectrum
MS/MS	LC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 50V, Positive	splash10-052f-9000000000-3d52b5d56d3fab45276e	2012-08-31	View Spectrum
MS/MS	LC-MS/MS Spectrum - CE-ESI-TOF (CE-system connected to 6210 Time-of-Flight MS, Agilent) , Positive	splash10-001i-0900000000-720554d58264a9cfdb67	2012-08-31	View Spectrum
Predicted MS/MS	Predicted LC-MS/MS Spectrum - 10V, Positive	splash10-0019-9500000000-00268b2694cde281641b	2016-09-12	View Spectrum
Predicted MS/MS	Predicted LC-MS/MS Spectrum - 20V, Positive	splash10-000i-9000000000-4014793e17e0290790a4	2016-09-12	View Spectrum
Predicted MS/MS	Predicted LC-MS/MS Spectrum - 40V, Positive	splash10-0a4i-9000000000-eb9a97a14461e524e76e	2016-09-12	View Spectrum

NMR

Type	Description	View
1D NMR	¹H NMR Spectrum (1D, 600 MHz, H₂O, experimental)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 125 MHz, H₂O, experimental)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 22.5 MHz, D₂O, experimental)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 100 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 100 MHz, D₂O, predicted)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 200 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 200 MHz, D₂O, predicted)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 300 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 300 MHz, D₂O, predicted)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 400 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 400 MHz, D₂O, predicted)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 500 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 500 MHz, D₂O, predicted)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 600 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 600 MHz, D₂O, predicted)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 700 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 700 MHz, D₂O, predicted)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 800 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 800 MHz, D₂O, predicted)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 900 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 900 MHz, D₂O, predicted)	Spectrum
1D NMR	¹H NMR Spectrum (1D, 1000 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 1000 MHz, D₂O, predicted)	Spectrum
1D NMR	¹³C NMR Spectrum (1D, 400 MHz, H₂O, experimental)	Spectrum
2D NMR	[¹H, ¹H]-TOCSY. Unexported temporarily by An Chi on Oct 15, 2021 until json or nmrML file is generated. 2D NMR Spectrum (experimental)	Spectrum
2D NMR	[¹H, ¹³C]-HSQC NMR Spectrum (2D, 600 MHz, H₂O, experimental)	Spectrum

Pathways

Name	SMPDB/Pathwhiz	KEGG
Valine, Leucine and Isoleucine Degradation
Transcription/Translation	Not Available	Not Available
Beta-Ketothiolase Deficiency		Not Available
2-Methyl-3-Hydroxybutryl CoA Dehydrogenase Deficiency		Not Available
Propionic Acidemia		Not Available

Protein Targets

Enzymes

Protein Name	Gene Name	Locus	Uniprot ID	Details
Branched-chain-amino-acid aminotransferase, cytosolic	BCAT1	12p12.1	P54687	details
Branched-chain-amino-acid aminotransferase, mitochondrial	BCAT2	19q13	O15382	details
Isoleucine--tRNA ligase, cytoplasmic	IARS	9q21	P41252	details
Short/branched chain specific acyl-CoA dehydrogenase, mitochondrial	ACADSB	10q26.13	P45954	details
L-amino-acid oxidase	IL4I1	19q13.3-q13.4	Q96RQ9	details
Isoleucine--tRNA ligase, mitochondrial	IARS2	1q41	Q9NSE4	details

Transporters

Protein Name	Gene Name	Locus	Uniprot ID	Details
Monocarboxylate transporter 10	SLC16A10	6q21-q22	Q8TF71	details

Metal Bindings

Not Available

Receptors

Not Available

Transcriptional Factors

Not Available

Concentrations Data

Cannabis Cultivar	Status	Value	Reference	Details
Alien Dawg	Detected and Quantified	0.416 mg/g dry wt	David S. Wishart,...	details
Gabriola	Detected and Quantified	0.191 mg/g dry wt	David S. Wishart,...	details
Island Honey	Detected and Quantified	0.429 mg/g dry wt	David S. Wishart,...	details
Quadra	Detected and Quantified	0.331 mg/g dry wt	David S. Wishart,...	details
Sensi Star	Detected and Quantified	0.0613 mg/g dry wt	David S. Wishart,...	details
Tangerine Dream	Detected and Quantified	0.120 mg/g dry wt	David S. Wishart,...	details

External Links

HMDB ID

HMDB0000172

DrugBank ID

DB00167

Phenol Explorer Compound ID

Not Available

FoodDB ID

KNApSAcK ID

Chemspider ID

KEGG Compound ID

BioCyc ID

BiGG ID

Wikipedia Link

METLIN ID

PubChem Compound

PDB ID

Not Available

ChEBI ID

17191

References

General References

Turner CE, Elsohly MA, Boeren EG: Constituents of Cannabis sativa L. XVII. A review of the natural constituents. J Nat Prod. 1980 Mar-Apr;43(2):169-234. doi: 10.1021/np50008a001. [PubMed:6991645 ]
Podebrad F, Heil M, Reichert S, Mosandl A, Sewell AC, Bohles H: 4,5-dimethyl-3-hydroxy-2[5H]-furanone (sotolone)--the odour of maple syrup urine disease. J Inherit Metab Dis. 1999 Apr;22(2):107-14. doi: 10.1023/a:1005433516026. [PubMed:10234605 ]

Enzymes

Enzyme Details

1. Branched-chain-amino-acid aminotransferase, cytosolic

General function:: Involved in catalytic activity
Specific function:: Catalyzes the first reaction in the catabolism of the essential branched chain amino acids leucine, isoleucine, and valine.
Gene Name:: BCAT1
Uniprot ID:: P54687
Molecular weight:: 38644.77

Enzyme Details

2. Branched-chain-amino-acid aminotransferase, mitochondrial

General function:: Involved in catalytic activity
Specific function:: Catalyzes the first reaction in the catabolism of the essential branched chain amino acids leucine, isoleucine, and valine. May also function as a transporter of branched chain alpha-keto acids.
Gene Name:: BCAT2
Uniprot ID:: O15382
Molecular weight:: 33776.315

Enzyme Details

3. Isoleucine--tRNA ligase, cytoplasmic

General function:: Involved in nucleotide binding
Specific function:: Not Available
Gene Name:: IARS
Uniprot ID:: P41252
Molecular weight:: 144496.915

Enzyme Details

4. Short/branched chain specific acyl-CoA dehydrogenase, mitochondrial

General function:: Involved in acyl-CoA dehydrogenase activity
Specific function:: Has greatest activity toward short branched chain acyl-CoA derivative such as (s)-2-methylbutyryl-CoA, isobutyryl-CoA, and 2-methylhexanoyl-CoA as well as toward short straight chain acyl-CoAs such as butyryl-CoA and hexanoyl-CoA. Can use valproyl-CoA as substrate and may play a role in controlling the metabolic flux of valproic acid in the development of toxicity of this agent.
Gene Name:: ACADSB
Uniprot ID:: P45954
Molecular weight:: 47485.035

Enzyme Details

5. L-amino-acid oxidase

General function:: Involved in oxidoreductase activity
Specific function:: Lysosomal L-amino-acid oxidase with highest specific activity with phenylalanine. May play a role in lysosomal antigen processing and presentation (By similarity).
Gene Name:: IL4I1
Uniprot ID:: Q96RQ9
Molecular weight:: 65327.26

Enzyme Details

6. Isoleucine--tRNA ligase, mitochondrial

General function:: Involved in nucleotide binding
Specific function:: Not Available
Gene Name:: IARS2
Uniprot ID:: Q9NSE4
Molecular weight:: 113790.565

Transporters

Enzyme Details

1. Monocarboxylate transporter 10

General function:: Involved in transmembrane transport
Specific function:: Sodium-independent transporter that mediates the update of aromatic acid. Can function as a net efflux pathway for aromatic amino acids in the basosolateral epithelial cells
Gene Name:: SLC16A10
Uniprot ID:: Q8TF71
Molecular weight:: 55492.1

Showing Compound Card for L-Isoleucine (CDB000132)

Structure for CDB000132 (L-Isoleucine)

Enzymes

Transporters