Complex I

Complex I
NADH-Dehydrogenase

NADH-Dehydrogenase

Schematische Darstellung von Complex I in der Zellmembran
Bezeichner
Gen-Name(n) NDH
Transporter-Klassifikation
TCDB 3.D.1
Bezeichnung Protonenverschiebende NADH-Dehydrogenase
Enzymklassifikation
EC, Kategorie 1.6.5.3  Oxidoreduktase
Reaktionsart Redoxreaktion
Substrat NADH + Ubichinon
Produkte NAD+ + Ubichinol

NADH-Dehydrogenase, genauer NADH-Ubichinon-Oxidoreduktase (systematischer Name), ist ein Enzymkomplex, der Elektronentransfer in Mitochondrien mit dem Membrantransport von Protonen oder Natrium koppelt. Er kommt in allen Tieren vor, ähnliche Transporter gibt es jedoch in allen Lebewesen. Er wird auch Komplex I der mitochondrialen Atmungskette genannt.

Das Enzym katalysiert in einer gekoppelten Reaktion die Oxidation von NADH mit der Reduktion von Coenzym Q und dem Transport von Protonen oder Natrium aus dem Mitochondrium hinaus:[1][2]

NADH + Ubichinon + 4 H+innen → NAD+ + Ubichinol + 4 H+außen

Inhaltsverzeichnis

Inhibitoren

Siehe auch

Weitere Enzym-Komplexe der mitochondrialen Atmungskette:

Einzelnachweise

  1. Homologene-Eintrag
  2. TCDB: 3.D.1 The Proton-translocating NADH Dehydrogenase (NDH) Family
  • Sazanov, L.A. & Hinchliffe, P. (2006): Structure of the hydrophilic domain of respiratory complex I from Thermus thermophilus. In: Science. Bd. 311, S. 1430-1436. PMID 16469879
  • Brandt, U. (2006): Energy converting NADH:quinone oxidoreductase (complex I). In: Annu. Rev. Biochem. Bd. 75, S. 69-92. PMID 16756485.
  • Flemming, D. & Friedrich, T. (2005): Die modulare Evolution eines Enzymkomplexes. In: Bioforum. Jg. 2005, Nr. 6. PDF

Weblinks


Wikimedia Foundation.

Игры ⚽ Поможем сделать НИР

Schlagen Sie auch in anderen Wörterbüchern nach:

  • Complex.h — Saltar a navegación, búsqueda complex.h es un archivo de cabecera de la Biblioteca estándar de C, en el que se definen fuinciones para el manejo de números complejos, introducida en la revisión C99 del leguaje C. A diferencia del archivo… …   Wikipedia Español

  • complex.h — es un archivo de cabecera de la Biblioteca estándar de C, en el que se definen funciones para el manejo de números complejos, introducida en la revisión C99 del lenguaje C. A diferencia del archivo <complex> de la Biblioteca estándar de C++ …   Wikipedia Español

  • complex — COMPLÉX, Ă, complecşi, xe, adj., s.n. 1. adj. Format din mai multe părţi; care îmbrăţişează, care întruneşte în sine mai multe laturi sau elemente diferite. ♦ (mat.) Număr complex = număr alcătuit prin însumarea unui număr real cu un număr… …   Dicționar Român

  • complex — adj Complex, complicated, intricate, involved, knotty are comparable when they mean having parts or elements that are more or less confusingly interrelated. Something is complex which is made up of so many different interrelated or interacting… …   New Dictionary of Synonyms

  • complex — 1. The noun is familiar as a term in psychology meaning ‘a group of repressed feelings or thoughts which cause abnormal behaviour or mental states’, usually with some qualifying word, e.g. inferiority complex, Oedipus complex, and persecution… …   Modern English usage

  • Complex — Com plex (k[o^]m pl[e^]ks), a. [L. complexus, p. p. of complecti to entwine around, comprise; com + plectere to twist, akin to plicare to fold. See {Plait}, n.] 1. Composed of two or more parts; composite; not simple; as, a complex being; a… …   The Collaborative International Dictionary of English

  • Complex.h — is a header file in the standard library of the C programming language that defines functionality for complex arithmetic. These functions use the built in type complex which was introduced with the C99 revision of C. Function… …   Wikipedia

  • Complex.h — Стандартная библиотека языка программирования С assert.h complex.h ctype.h errno.h fenv.h float.h inttypes.h iso646.h limits.h locale.h math.h setjmp.h signal.h stdarg.h stdbool.h stddef.h stdint.h stdio.h …   Википедия

  • Complex — Com plex, n. [L. complexus] Assemblage of related things; collection; complication. [1913 Webster] This parable of the wedding supper comprehends in it the whole complex of all the blessings and privileges exhibited by the gospel. South. [1913… …   The Collaborative International Dictionary of English

  • complex — I adjective abstruse, bewildering, chaotic, circuitous, complicated, confused, convoluted, difficult, elaborated, enigmatic, entangled, flexuous, impenetrable, implicated, inextricable, inscrutable, interlaced, interwoven, intricate, involuted,… …   Law dictionary

  • Complex EP — by Rifle Sport Released 1985 Recorded …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”