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66902 Ensembl ENSG00000099810 ENSMUSG00000062937 UniProt Q13126 Q9CQ65 RefSeq (mRNA) NM_002451 NM_024433 RefSeq (protein) NP_002442 NP_077753 Location (UCSC) Chr 9: 21.8 – 21.94 Mb Chr 4: 89.06 – 89.1 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse S-methyl-5'-thioadenosine phosphorylase (MTAP) is an enzyme responsible for polyamine metabolism. In humans, it is encoded by the ...
In enzymology, a S-methyl-5'-thioadenosine phosphorylase (EC 2.4.2.28) is an enzyme that catalyzes the chemical reaction S-methyl-5'-thioadenosine + phosphate ⇌ {\displaystyle \rightleftharpoons } adenine + S-methyl-5-thio-alpha-D-ribose 1-phosphate
is the linear combination of vectors and such that = +. In mathematics, a linear combination or superposition is an expression constructed from a set of terms by multiplying each term by a constant and adding the results (e.g. a linear combination of x and y would be any expression of the form ax + by, where a and b are constants).
One may thus replace the field of scalars by a ring R, and this gives the structure called a module over R, or R-module. The concepts of linear independence, span, basis, and linear maps (also called module homomorphisms) are defined for modules exactly as for vector spaces, with the essential difference that, if R is not a field, there are ...
In mathematics, the linear span (also called the linear hull [1] or just span) of a set of elements of a vector space is the smallest linear subspace of that contains . It is the set of all finite linear combinations of the elements of S , [ 2 ] and the intersection of all linear subspaces that contain S . {\displaystyle S.}
Linear programming (LP), also called linear optimization, is a method to achieve the best outcome (such as maximum profit or lowest cost) in a mathematical model whose requirements and objective are represented by linear relationships. Linear programming is a special case of mathematical programming (also known as mathematical optimization).
As a human activity, the practice of mathematics has a social side, which includes education, careers, recognition, popularization, and so on. In education, mathematics is a core part of the curriculum and forms an important element of the STEM academic disciplines.
A module that has a basis is called a free module. Free modules play a fundamental role in module theory, as they may be used for describing the structure of non-free modules through free resolutions. A module over the integers is exactly the same thing as an abelian group. Thus a free module over the integers is also a free abelian group.