Data Mining in Bioinformatics

Front Cover
Jason T. L. Wang
Springer Science & Business Media, 2005 - Computers - 340 pages
8. 1. 1 Protein Subcellular Location The life sciences have entered the post-genome era where the focus of biologicalresearchhasshiftedfromgenomesequencestoproteinfunctionality. Withwhole-genomedraftsofmouseandhumaninhand,scientistsareputting more and more e?ort into obtaining information about the entire proteome in a given cell type. The properties of a protein include its amino acid sequences, its expression levels under various developmental stages and in di?erenttissues,its3Dstructureandactivesites,itsfunctionalandstructural binding partners, and its subcellular location. Protein subcellular location is important for understanding protein function inside the cell. For example, the observation that the product of a gene is localized in mitochondria will support the hypothesis that this protein or gene is involved in energy metabolism. Proteins localized in the cytoskeleton are probably involved in intracellular tra?cking and support. The context of protein functionality is well represented by protein subcellular location. Proteins have various subcellular location patterns [250]. One major category of proteins is synthesized on free ribosomes in the cytoplasm. Soluble proteins remain in the cytoplasm after their synthesis and function as small factories catalyzing cellular metabolites. Other proteins that have a target signal in their sequences are directed to their target organelle (such as mitochondria) via posttranslational transport through the organelle membrane. Nuclear proteins are transferred through pores on the nuclear envelope to the nucleus and mostly function as regulators. The second major category of proteins is synthesized on endoplasmic reticulum(ER)-associated ribosomes and passes through the reticuloendothelial system, consisting of the ER and the Golgi apparatus.
 

Contents

III
7
VI
8
VII
12
VIII
13
XI
16
XII
20
XIII
25
XIV
28
LV
136
LVI
141
LVII
145
LVIII
147
LX
148
LXI
151
LXII
190
LXIII
193

XV
29
XVI
32
XVII
35
XVIII
39
XIX
45
XX
47
XXIII
49
XXIV
51
XXV
52
XXVI
55
XXVII
57
XXVIII
60
XXIX
63
XXXII
64
XXXIII
71
XXXV
75
XXXVI
80
XXXVII
87
XXXVIII
89
XLI
92
XLII
98
XLIII
106
XLIV
109
XLVII
110
XLVIII
114
XLIX
121
L
128
LI
131
LIV
133
LXVI
195
LXVII
197
LXVIII
200
LXIX
208
LXX
217
LXXI
221
LXXIII
223
LXXIV
226
LXXV
228
LXXVI
233
LXXVII
234
LXXVIII
238
LXXX
243
LXXXI
244
LXXXII
247
LXXXIV
250
LXXXVI
252
LXXXVII
256
LXXXVIII
271
LXXXIX
275
XC
279
XCIII
281
XCIV
284
XCV
287
XCVI
299
XCVII
301
XCVIII
307
XCIX
331
Copyright

Other editions - View all

Common terms and phrases