Version 2.77


Isoleucine is one of the 20 basic amino acids, and forms part of the structure of almost all proteins. It is coded for in DNA. Its chemical composition is identical to that of leucine, but the arrangement of its atoms is slightly different, resulting in different properties. Nutritionally, in humans, isoleucine is an essential amino acid. Isoleucine is a hydrophobic amino acid. Its three letter code is ILE and its one letter code is I. Isoleucine has two chiral centers; therefore there are four possible stereoisomers of isoleucine and two possible diastereomers of L-isoleucine. However, isoleucine present in nature exists in one enantiomeric form, (2 S ,3 S)-2-amino-3-methylpentanoic acid. Rich sources of isoleucine are eggs, chicken, pork, mutton, pulses, soya beans, cottage cheese, milk, piyal seeds, cashew nuts, and cereal grains. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See for details. Source: Wikipedia, Isoleucine (Wikipedia)

An essential, branched-chain aliphatic amino acid found in many proteins. It is an isomer of leucine. It is important in hemoglobin synthesis, the regulation of blood sugar and in maintaining energy levels. Source: National Library of Medicine, MeSH 2006

Isoleucine is an essential nonpolar hydrophobic amino acid. It is increased with Hartnup Disease and Maple Syrup Urine Disease (MSUD). (Information from ARUP Laboratories 9/14/06) Source: Regenstrief Institute

Basic Part Properties

Part Display Name
Part Type
Component (Describes the core component or analyte measured)
Created On
Construct for LOINC Short Name

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup$lookup?system=
ConceptMap translate$translate?system=

Language Variants Get Info

Tag Language Translation
zh-CN Chinese (China) 异亮氨酸
Synonyms: Ile;异白氨酸
fr-CA French (Canada) Isoleucine
et-EE Estonian (Estonia) Isoleutsiin
es-ES Spanish (Spain) Isoleucina
it-IT Italian (Italy) Isoleucina
tr-TR Turkish (Turkey) İzolösin
ru-RU Russian (Russian Federation) Изолейцин
nl-NL Dutch (Netherlands) isoleucine
fr-BE French (Belgium) Isoleucine