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  • The following terms were not found in MeSH: DRSC, S2-DRSC.

Receptors, Serotonin, 5-HT2

A subclass of G-protein coupled SEROTONIN receptors that couple preferentially to the GQ-G11 G-PROTEINS resulting in increased intracellular levels of INOSITOL PHOSPHATES and free CALCIUM.

Year introduced: 2004


Somatosensory Cortex

Area of the parietal lobe concerned with receiving sensations such as movement, pain, pressure, position, temperature, touch, and vibration. It lies posterior to the central sulcus.

Year introduced: 1971


PD-S2 protein, Phytolacca dioica [Supplementary Concept]

type 1 ribosome inactivating protein: S2 from seeds of Phytolacca dioica is MW 29,586 with 265 residues (4 more than PAP-S of P. americana); sequence identity 80% with PAP-1 and 76% with PAP-S and 33% with ricin A chain; L isoform from leaves

Date introduced: April 11, 1997


self-incompatibility glycoprotein, Nicotiana [Supplementary Concept]

SI gene has 3 alleles, S2, S3 & S6 with overall 56% homology; the self-incompatibility (SI) system is controlled by a single S-gene; from Nicotiana alata; amino acid sequence given in first source; RN refers to S2

Date introduced: October 14, 1992


presurface protein 2, hepatitis B surface antigen [Supplementary Concept]

226 amino acid product of hepatitis B virus S gene + 55 amino acids; may be important in virion assembly & infectivity

Date introduced: January 2, 1987


pyrite [Supplementary Concept]

air pollutant dust; inert model; RN given refers to cpd with MF of Fe-S2

Date introduced: January 1, 1976


Spike Glycoprotein, Coronavirus

A class I viral fusion protein that forms the characteristic spikes, or peplomers, found on the viral surface that mediate virus attachment, fusion, and entry into the host cell. During virus maturation, it is cleaved into two subunits: S1, which binds to receptors in the host cell, and S2, which mediates membrane fusion.

Year introduced: 2014


S2 protein, Equine infectious anemia virus [Supplementary Concept]

amino acid sequence in first source

Date introduced: January 7, 2000


casocidin I [Supplementary Concept]

a 39-amino-acid-containing peptide; from bovine milk; amino acid sequence given in first source

Date introduced: November 9, 1995


4-thioanisyl-2-biphenylyl-3-hydroxypropionic acid [Supplementary Concept]

structure given in first source; RN given refers to th (2:R*,R*3:(+-))-isomer

Date introduced: July 23, 1992


4-trifluoromethylphenyl-2-biphenylyl-3-hydroxypropionic acid [Supplementary Concept]

structure given in first source; RN given refers to the (1:S2:R*,S*)-isomer

Date introduced: July 23, 1992


ribosomal protein S2 [Supplementary Concept]

Date introduced: June 16, 1981


Pudendal Nerve

A nerve which originates in the sacral spinal cord (S2 to S4) and innervates the PERINEUM, the external GENITALIA, the external ANAL SPHINCTER and the external urethral sphincter. It has three major branches: the perineal nerve, inferior anal nerves, and the dorsal nerve of penis or clitoris.

Year introduced: 2012


Tibial Nerve

The medial terminal branch of the sciatic nerve. The tibial nerve fibers originate in lumbar and sacral spinal segments (L4 to S2). They supply motor and sensory innervation to parts of the calf and foot.

Year introduced: 1972(1971)



A condition characterized by pain radiating from the back into the buttock and posterior/lateral aspects of the leg. Sciatica may be a manifestation of SCIATIC NEUROPATHY; RADICULOPATHY (involving the SPINAL NERVE ROOTS; L4, L5, S1, or S2, often associated with INTERVERTEBRAL DISK DISPLACEMENT); or lesions of the CAUDA EQUINA.



A condition characterized by recurrent episodes of daytime somnolence and lapses in consciousness (microsomnias) that may be associated with automatic behaviors and AMNESIA. CATAPLEXY; SLEEP PARALYSIS, and hypnagogic HALLUCINATIONS frequently accompany narcolepsy. The pathophysiology of this disorder includes sleep-onset rapid eye movement (REM) sleep, which normally follows stage III or IV sleep. (From Neurology 1998 Feb;50(2 Suppl 1):S2-S7)

Year introduced: 1967(1963)



A mixture of related phosphoproteins occurring in milk and cheese. The group is characterized as one of the most nutritive milk proteins, containing all of the common amino acids and rich in the essential ones.

Year introduced: 1982


mycolactone S2 [Supplementary Concept]

from Mycobacterium ulcerans; structure in first source

Date introduced: March 25, 2013


Rps2 protein, S pombe [Supplementary Concept]

has been sequenced

Date introduced: November 27, 2008

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