(redirected from ELN)
Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Acronyms, Wikipedia.


An elastic protein composing the principal component of elastic fibers.



the scleroprotein that is the chief constituent of elastic fibers of connective tissue. Elastin is especially abundant in the cervical ligaments and the aortic walls (about 40 percent of the dry mass). The amount of elastin in lung tissue increases with age from 0.05 to 15 percent of the dry mass. Elastin is insoluble (even when heated) in water, dilute saline solutions, acids, and alkalies. It contain a large number of amino acid radicals with nonpolar side chains, which appear to be responsible for the high elasticity of its fibers. Like collagen, elastin is rich in glycine and proline.

Elastin can be broken down only with difficulty by proteolytic enzymes. It is digested in the digestive tract mainly as a result of the action of the enzyme elastase. Elastin is found in all vertebrates except cyclostomes; it is absent in invertebrates.


Haurowitz, F. Khimiia i funktsii belkov, 2nd ed. Moscow, 1965. (Translated from English.)
Elastin and Elastic Tissue. New York–London, 1977.
References in periodicals archive ?
Tres de los seis candidatos punteros: Sergio Fajardo, Gustavo Petro y Humberto de la Calle, respaldan los acuerdos de paz con las FARC y la continuidad de los dialogos con el ELN.
Access to a suitable ELN would provide a means to both engage with technology and collaborate in open science.
Marc Smith, Knowledge Management System Project Leader at Lonza's Mammalian Development Services unit in Slough, UK, echoes Spirk when he says, "Jumping into the ELN needs to be managed.
The absence of ELN second-in-command Antonio Garcia, present in other rounds as head of the group's delegation, led to conjectures that no serious progress would occur during the sixth round of talks.
Rolled out in March 2005, the ELN is now used by 50 chemists at Arena, which is developing drugs to treat metabolic, cardiovascular, inflammatory and central nervous system diseases.
El doctor Uribe pidio la colaboracion de Fox para adelantar los pasos de un acuerdo de paz con los senores del ELN.
Since 1992, the FARC and ELN have kidnapped 51 United States citizens and murdered ten.
When Bogota officials announced on February 17 that they were prepared to hand over the area to the ELN, paramilitary groups responded with a drunken spree through nearby villages, killing forty-five peasants.
El Estado colombiano y el ELN anunciaron el pasado 31 de marzo el inicio en Ecuador de una fase publica de dialogos de paz, pero hasta ahora las conversaciones no han comenzado.
The 2,000-strong ELN has increased oil pipeline bombings in recent months and continued kidnappings, in what many see as an attempt to pressure the government into talks.
Asi lo exponen a Proceso estudiosos de la guerra interna colombiana, quienes consideran que, con el ELN en la mesa de negociaciones y la guerrilla de las Fuerzas Armadas Revolucionarias de Colombia (FARC) a punto de firmar un acuerdo de paz con el gobierno, el pais tiene la posibilidad, por primera vez desde que se inicio la guerra interna hace medio siglo, de incorporar a los grupos insurgentes activos a la vida politica legal.