Rsk ribosomal protein S6 kinase

RT reverse transcriptase

RTK receptor tyrosine kinase

RT-PCR reverse transcriptase-polymerase chain reaction

Ru ruthenium

RVD regulatory volume decrease

RVI regulatory volume increase

s sigma

S sulfur

SAG Schwann cell membrane associated glycoprotein

SAG Schwann cell membrane associated glycoprotein

SAH S-adenosylhomocysteine

Sal I restriction endonuclease

SAM S-adenosylmethionine

SAP synapse associated protein

SAPAP synapse associated protein (SAP) associated Protein

SAPK stress activated protein kinase

SAR systemic acquired resistance

Sb antimony (L. stibium)

SBP serotonin binding protein

Sca slow component a (of axonal transport)

SCAD short chain acyl-CoA dehydrogenase

SCAMP secretory carrier membrane protein

Scb slow component b (of axonal transport)

scFv single-chain variable fragment

SCG superior cervical ganglion

SCHAD short chain 3-hydroxyacyl-CoA dehydrogenase

SCIP suppressed cyclic AMP-inducible POU domain protein

SCN suprachiasmatic nuclei

ScTX scorpion toxin

SDA semidehydroascorbate

SDS sodium dodecylsulfate

SDS-PAGE sodium dodecylsulfate-polyacrylamide gel electrophoresis

SE status epilepticus

Se selenium

SEK stress activated protein kinase kinase

SER smooth endoplasmic reticulum

Ser serine

SERCA smooth endoplasmic reticulum C++ antiporter

SERT serotonin transporter

SGPG sulfate-3-glucuronyl paragloboside

SH src homology domain

SHC src homology collagen-like protein

SHIP src homology inositol phosphatase

SHMT serine hydroxymethyltransferase

SHP SH2 domain containing protein tyrosine phosphatase

Si silicon

SIF small, intensely fluorescent (cells)

SIM selected ion monitoring

Sm samarium

S-MAG short MAG

SMAP small G protein regulator associated protein

SMC sensorimotor cortex

SMDF sensory and motor neuron-derived growth factor

SMG Schwann cell myelin protein

SMP Schwann cell myelin protein

Sn tin (L. stannum)

SNAP soluble NSF attachment protein

SNAP S-nitroso-N-acetyl-penicillamine

SNc substantia nigra pars compacta

SNE subacute necrotizing encephalomyelopathy

SNP single nucleotide polymorphisms

SNr substantia nigra pars reticulata

SNT suc-associated neurotrophic factor-induced tyrosine-phosphorylated target

SOD superoxide dismutase

SOS son of sevenless (a G protein)

SPECT single photon emission computerized tomography

SR sarcoplasmic rfeticulum

Sr strontium

SRF serum responsive factor

SRP signal recognition particle

SRS-A slow-reacting substance A

SSADH succinic semialdehyde dehydrogenase

SSPE subacute sclerosing panencephalomyelitis

SSRI selective serotonin reuptake inhibitor

SSV small secretory vesicles

ST striatum

STE stop transfer effector

STN subthalamic nucleus

STP standard temperature and pressure

Str striatum

STT scapho-trapezoi-trapezoid

Sv40 simian virus 40

SVZ subventricular zones

SWD spike and wave discharges

t tau

T temperature

Ta tantalum

Tb terbium

TBA thiobarbituric acid

TBPS t-butyl bicyclophosphorothionate

Tc transition temperature

TC transcobalamin

Tc technetium

TCA tricarboxylic acid cycle or tricyclic antidepressant

TCA trichloroacetic acid

TCDD 2,3,7,8-tetrachlorodibenzo-p-dioxin

TCh total cholesterol

TCHQ tetrachlorohydroquinone

TCR T cell receptor

Te tellurium

TEXAN toxin extruding antiporter

TG triglycerides

TGF transforming growth factor

TGFB transformng growth factor B

TGF-b1 transforming growth factor beta 1

TH tyrosine hydroxylase

Th thorium

THIP 4,5,6,7-tetrahydroisoxazolo-[5,4-c]-pyridine-3-ol

THPROG 3a, 5a-pregnan-3a-ol-20-one

Thr threonine

Ti titanium

TIMP tissue inhibitor of metalloproteinases

TK transketolase

TLC thin-layer-chromatography

TM transmembranae spanning domain

Tm melting temperature

TM transmembrane

TMD transmembranae spanning domain

t-MH tele-methylhistamine

t-MIAA tele-methylimidazole acetic acid

TNF tumor necrosis factor

TP trifunctional protein

TPA tissue plasminogen activator

TRE 12-d-tetradecanoyl phorbol-13-acetate response element

TRH thyrotropin-releasing hormone

Trp tryptophan

TSA thiol-specific antioxidant

TSE transmissilble spongiform encephalopathy

TSH thyroid stimulating hormone

TTP thiamine triphosphate

TTX tetrodotoxin

TXA2 thromboxane A2

TXB2 thromboxane B2

Tyr tyrosine

u upsilon

U uranium

Ub ubiquitin

UDP uridilne 5'-diphosphate

UDP-glucose uridine diphosphoglucose