cysteine

(redirected from E910)
Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

cysteine

 [sis-te´ēn]
a sulfur-containing amino acid, one of the nonessential amino acids, produced by enzymatic or acid hydrolysis of proteins; it is readily oxidized to cystine and is sometimes found in urine.

cys·te·ine (C, Cys),

(sis-tē'in), Do not confuse this word with cystine.
l-isomer of this acid is found in most proteins; especially abundant in keratin.

cysteine

/cys·te·ine/ (sis-te´ēn) a sulfur-containing, nonessential amino acid produced by enzymatic or acid hydrolysis of proteins, readily oxidized to cystine; sometimes found in urine. Symbols Cys and C.

cysteine

(sĭs′tə-ēn′, -ĭn, -tē-)
n.
An amino acid, C3H7O2NS, derived from cystine and found in most proteins.

cysteine (Cys)

[sis′tēn]
an amino acid containing a polar side chain found in many proteins in the body, including keratin. It is a metabolic precursor of cystine and an important source of sulfur for various body functions. Compare cystine.
enlarge picture
Chemical structure of cysteine

cys·te·ine

(C, Cys) (sis-tē'in)
An amino acid found in most proteins; especially abundant in keratin.

cysteine

An AMINO ACID present in most body proteins.
Cysteineclick for a larger image
Fig. 125 Cysteine . Molecular structure.

cysteine (C, Cys)

one of 20 AMINO ACIDS common in proteins that has a polar ‘R’ structure and is water-soluble. See Fig. 125 . The R group contains a sulphydryl (SH) group which is vital for the formation of DISULPHIDE BRIDGES in proteins. Disulphide bridges hold polypeptides together and give stability, especially in molecules such as KERATIN and IMMUNOGLOBULINS. The ISOELECTRIC POINT of cysteine is 5.1.

cysteine

amino acid present in most proteins, but especially abundant in keratin

cys·te·ine

(C) (sis-tē'in) Do not confuse this word with cystine.
l-isomer of this acid is found in most proteins; especially abundant in keratin.

cysteine (sis´təēn´),

n a nonessential amino acid found in many proteins in the body.

cysteine

a sulfur-containing amino acid produced by enzymatic or acid hydrolysis of proteins, readily oxidized to cystine; sometimes found in urine.