Carbohydrate Uptake and Metabolism

Carbohydrate Uptake and Metabolism
复制标题

碳水化合物的吸收和代谢

DOI:
10.1128/9781555817992.ch11
复制
发表时间:
2002
影响因子:
3.2
通讯作者:
I. Martin
I. Martin
中科院分区:
生物学3区
文献类型:
--
作者:
J. Deutscher;A. Galinier;I. Martin

文献摘要

参考文献

被引文献

相似文献

编码多糖水解酶的基因通常与编码催化细胞外水解产物的摄取和其催化剂中的第一个细胞内步骤的酶的基因一起组织在操纵子或调节子中。枯草杆菌基因组编码约23种二级碳水化合物转运蛋白和11种ATP结合盒(ABC)碳水化合物转运蛋白。主要易化剂超家族(MFS)包括八个B。枯草杆菌蛋白的未知碳水化合物特异性,表现出显着的相似性,以GalP/XylE亚家族。编码多糖水解酶的基因通常与编码催化细胞外水解产物的摄取和其催化剂中的第一个细胞内步骤的酶的基因一起组织在操纵子或调节子中。糖酵解是生物体中最保守的代谢途径之一。为了保存细胞资源,只有当生长培养基中存在相应的碳水化合物时,才诱导数百种碳水化合物催化剂基因中的大多数的表达。抗终止子控制的基因或操纵子的表达通常发生在组成型启动子上;转录终止于位于这些基因和操纵子前导区的终止子,提供非常短的转录物。在革兰氏阳性和革兰氏阴性细菌中起作用的碳水化合物运输系统非常相似,并且很可能在进化早期发展起来。
The genes encoding the polysaccharide-hydrolyzing enzymes are often organized in an operon or regulon together with genes that encode the enzymes catalyzing the uptake of the extracellular hydrolytic products and the first intracellular steps in their catabolism. The Bacillus subtilis genome encodes about 23 secondary and 11 ATP-binding cassette (ABC) carbohydrate transporters. The major facilitator superfamily (MFS) comprises eight B. subtilis proteins of unknown carbohydrate specificity exhibiting significant similarity to the GalP/XylE subfamily. The genes encoding the polysaccharide-hydrolyzing enzymes are often organized in an operon or regulon together with genes that encode the enzymes catalyzing the uptake of the extracellular hydrolytic products and the first intracellular steps in their catabolism. Glycolysis is one of the most conserved metabolic pathways in living organisms. To conserve cellular resources, expression of most of the hundreds of carbohydrate catabolism genes is induced only when the corresponding carbohydrate is present in the growth medium. Expression of antiterminator-controlled genes or operons usually occurs from a constitutive promoter; transcription stops at a terminator located in the leader region of these genes and operons, providing very short transcripts. The carbohydrate transport systems operative in gram-positive and gram-negative bacteria are very similar and most likely developed early in evolution.
DOI: 10.1073/pnas.87.16.6238
发表时间: 1990-08
影响因子: 11.1
作者:
M. Weickert;G. Chambliss
通讯作者: M. Weickert;G. Chambliss
DOI: 10.1006/jmbi.1999.3420
发表时间: 2000-01-28
影响因子: 5.6
作者:
Jourlin-Castelli, C;Mani, N;Sonenshein, AL
通讯作者: Sonenshein, AL
常见的结构变化伴随着丝氨酰磷酸化或丝氨酸至天冬氨酸取代引起的 HPr 功能失活。
DOI: 10.1021/bi00452a005
发表时间: 1989
期刊: Biochemistry
影响因子: 2.9
作者:
Wittekind,M;Reizer,J;Deutscher,J;Saier,MH;Klevit,RE
通讯作者: Klevit,RE
DOI: 10.1016/0022-2836(87)90204-x
发表时间: 1987-12-20
影响因子: 5.6
作者:
NICHOLSON, WL;PARK, YK;CHAMBLISS, GH
通讯作者: CHAMBLISS, GH
枯草芽孢杆菌和大肠杆菌的磷酸烯醇丙酮酸:糖磷酸转移酶系统的蛋白质之间的功能相互作用。
DOI: --
发表时间: 1992
期刊: The Journal of biological chemistry
影响因子: --
作者:
Reizer,J;Sutrina,SL;Wu,LF;Deutscher,J;Reddy,P;SaierJr,MH
通讯作者: SaierJr,MH