The lipid bilayer and associated glycoproteins that surround many types of virus particle.

The chemical reactions involving polyisoprenoids, acyclic polymers containing a large number of isoprene subunits, usually unsaturated.

Catalysis of the reaction: NADPH + H+ + quinone = NADP+ + semiquinone.

Targeting of a vesicle to a specific destination membrane.

Catalysis of the reaction: ATP + RNA 3'-terminal-phosphate = AMP + diphosphate + RNA terminal-2',3'-cyclic-phosphate.

The initial attachment of a vesicle membrane to a target membrane, mediated by proteins protruding from the membrane of the vesicle and the target membrane, during exocytosis.

Catalysis of the reaction: deoxynucleoside triphosphate + DNA(n) = diphosphate + DNA(n+1). Catalyzes RNA-template-directed extension of the 3'- end of a DNA strand by one deoxynucleotide at a time.

Fusion of the membrane of a transport vesicle with its target membrane.

The process whereby phagocytes engulf external particulate material. The particles are initially contained within phagocytic vacuoles (phagosomes), which then fuse with primary lysosomes to effect digestion of the particles.

A structure composed of a very long molecule of DNA and associated proteins (e.g. histones) that carries hereditary information.

Catalysis of the reaction: NAD+ + (ADP-D-ribosyl)(n)-acceptor = nicotinamide + (ADP-D-ribosyl)(n+1)-acceptor.

Catalysis of the reaction: ATP + NAD+ = ADP + NADP+.

Catalysis of the reaction: ATP + deamido-NAD+ + L-glutamine + H2O = AMP + diphosphate + NAD+ + L-glutamate.

Catalysis of the reaction: NAD+ + H2O = nicotinamide + ADP-ribose.

Any process which produces a nucleotide, a nucleobase linked to either beta-D-ribofuranose (ribonucleoside) or 2-deoxy-beta-D-ribofuranose, (a deoxyribonucleotide),from derivatives of it without de novo synthesis.

Catalysis of the reaction: NADH + H+ + acceptor = NAD+ + reduced acceptor.

Catalysis of the reaction: NAD(P)H + H+ + acceptor = NAD(P)+ + reduced acceptor.

Interacting selectively with any organic compound that is weakly basic in character and contains an amino or a substituted amino group.