A protein complex which is capable of GABA receptor activity. Upon binding of gamma-aminobutyric acid (GABA) it transmits the signal from one side of the membrane to the other to initiate a change in cell activity. Major inhibitory receptor in vertebrate brain. Also found in other vertebrate tissues, invertebrates and possibly in plants. Effective benzodiazepine receptor.

A protein complex which is capable of G protein-coupled GABA receptor activity. In human, it is usually a heterodimer composed of GABA-B receptor subunits 1 and 2.

A protein complex which is capable of GABA-A receptor activity. In human, it is usually composed of either two alpha, two beta and one gamma chain of the GABA-A receptor subunits or 5 chains of the GABA-A receptor subunits rho1-3 (formally known as GABA-C receptor).

Any cell cortex that is part of a growing cell tip.

OBSOLETE. Any process that modulates the frequency, rate or extent of sequestering of copper ion.

OBSOLETE. Any process that modulates the frequency, rate or extent of sequestering of iron ion.

OBSOLETE. The process of binding or confining copper ions in an extracellular area such that they are separated from other components of a biological system.

Catalysis of the reaction: H(2)O + O(2) + spermine = 1,3-diaminopropane + H(2)O(2) + N-(3-aminopropyl)-4-aminobutanal.

Catalysis of the reaction: H(2)O + O(2) + spermidine = 3-aminopropanal + H(2)O(2) + putrescine.

Catalysis of the reaction: H(2)O + O(2) + spermine = 3-aminopropanal + H(2)O(2) + spermidine.

Catalysis of the reaction: 4 S-adenosyl-L-methionine + adenine(1518)/adenine(1519) in 16S rRNA = 4 S-adenosyl-L-homocysteine + N(6)-dimethyladenine(1518)/N(6)-dimethyladenine(1519) in 16S rRNA.

Catalysis of the reaction: S-adenosyl-L-methionine + adenine(1618) in 23S rRNA = S-adenosyl-L-homocysteine + rRNA containing N(6)-methyladenine(1618) in 23S rRNA.

Catalysis of the reaction: 4 S-adenosyl-L-methionine + adenine(1779)/adenine(1780) in 18S rRNA = 4 S-adenosyl-L-homocysteine + N(6)-dimethyladenine(1779)/N(6)-dimethyladenine(1780) in 18S rRNA.

Catalysis of the reaction: H(2)O + N(1)-acetylspermidine + O(2) = 3-acetamidopropanal + H(2)O(2) + putrescine.

Catalysis of the reaction: H(2)O + N(1)-acetylspermine + O(2) = 3-acetamidopropanal + H(2)O(2) + spermidine.

Catalysis of the reaction: S-adenosyl-L-methionine + guanine(37) in tRNA = N(1)-methylguanine(37) in tRNA + S-adenosyl-L-homocysteine.