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Related to serine: Amino acids, threonine


a naturally occurring, nonessential amino acid, used as a dietary supplement, in biological studies and tests, and in culture media.

ser·ine (S, Ser),

2-Amino-3-hydroxypropanoic acid; the l-isomer is one of the amino acids occurring in proteins.


/ser·ine/ (Ser) (S) (sēr´ēn) a naturally occurring nonessential amino acid present in many proteins.


An amino acid, C3H7NO3, that is a common constituent of many proteins.

serine (Ser)

a nonessential amino acid found in many proteins in the body (e.g., casein, vitellin). It is synthesized from glycine or threonin and a precursor of the amino acids purine, cysteine, and others. It can be found in urine. See also amino acid, protein.
enlarge picture
Chemical structure of serine


A gene on chromosome 11q12-q13.1 that encodes a highly glycosylated plasma protein which regulates the complement cascade by inhibiting activated C1r and C1s, thereby preventing complement activation.

Molecular pathology
C1-INH/SERPING1 deficiency is associated with hereditary angioneurotic oedema (HANE).


(S) (sĕr'ēn)
One of the amino acids occurring in proteins.


A non-essential amino acid found as a component of most proteins. It is a precursor of choline, glucine, cysteine and pyruvate. Serine is present in most diets but most of the body serine is synthesized.
Serineclick for a larger image
Fig. 282 Serine . Molecular structure.

serine (S, Ser)

one of 20 AMINO ACIDS common in proteins. It has a polar ‘R’ group structure and is soluble in water. See Fig. 282 . The ISOELECTRIC POINT of serine is 5.7.


One of the amino acids occurring in proteins.

serine (Ser) (serēn´),

n a nonessential amino acid found in many proteins in the body. It is a precursor of the amino acids glycine and cysteine.


Ser; a naturally occurring amino acid.
References in periodicals archive ?
To evaluate the off-target effect, soybean pod borer serine protease mRNA levels were determined and compared between the dsRNA serine protease treated insects and the controls.
21Kcal/mol and best binding pose to its targeted Serine 276 phosphorylation structural pocket of NFB.
Finally, physiologic lipid formulations with a low pH cause a decrease in serine protease activity.
This is where NSP4 differs from the other three known neutrophil serine proteases, which are similar in molecular structure, but have a different recognition motif.
2011) Functional genomics reveal that the serine synthesis pathway is essential in breast cancer.
The new plant, which has an annual amino acid production capacity of 2,500 tons, manufactures 12 different amino acids including arginine, histidine and serine for transfusions.
analyzed all 20 natural amino acids and found that only serine forms highly chemically stable clusters.
Compounds from this patent estate also have the potential to inhibit serine and cysteine protease enzymes.
The enzymes, chymotrypsin, trypsin, and lysozyme, exhibited rate enhancement values greater by several orders of magnitude than those of the individual amino acids, serine, histidine, tyrosine, and lysine.
It contains Phosphatidyl serine (PS) which is found in all human cells and concentrated in nerves.
Active Ingredient: Phosphatidyl serine (PS), a fat-like substance extracted from soybeans that is also found naturally in brain cells, where it may help the flow of nerve impulses.

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