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