| Structural highlights
Disease
PGK1_HUMAN Defects in PGK1 are the cause of phosphoglycerate kinase 1 deficiency (PGK1D) [MIM:300653. It is a condition with a highly variable clinical phenotype that includes hemolytic anemia, rhabdomyolysis, myopathy and neurologic involvement. Patients can express one or more of these manifestations.[1] [2] [3] [4] [5] [6] [7] [8] [9]
Function
PGK1_HUMAN In addition to its role as a glycolytic enzyme, it seems that PGK-1 acts as a polymerase alpha cofactor protein (primer recognition protein).
Publication Abstract from PubMed
Cancer cells are able to survive in difficult conditions, reprogramming their metabolism according to their requirements. Under hypoxic conditions they shift from oxidative phosphorylation to aerobic glycolysis, a behavior known as Warburg effect. In the last years, glycolytic enzymes have been identified as potential targets for alternative anticancer therapies. Recently, phosphoglycerate kinase 1 (PGK1), an ubiquitous enzyme expressed in all somatic cells that catalyzes the seventh step of glycolysis which consists of the reversible phosphotransfer reaction from 1,3-bisphosphoglycerate to ADP, has been discovered to be overexpressed in many cancer types. Moreover, several somatic variants of PGK1 have been identified in tumors. In this study we analyzed the effect of the single nucleotide variants found in cancer tissues on the PGK1 structure and function. Our results clearly show that the variants display a decreased catalytic efficiency and/or thermodynamic stability and an altered local tertiary structure, as shown by the solved X-ray structures. The changes in the catalytic properties and in the stability of the PGK1 variants, mainly due to the local changes evidenced by the X-ray structures, suggest also changes in the functional role of PGK to support the biosynthetic need of the growing and proliferating tumour cells.
The phosphoglycerate kinase 1 variants found in carcinoma cells display different catalytic activity and conformational stability compared to the native enzyme.,Fiorillo A, Petrosino M, Ilari A, Pasquo A, Cipollone A, Maggi M, Chiaraluce R, Consalvi V PLoS One. 2018 Jul 11;13(7):e0199191. doi: 10.1371/journal.pone.0199191., eCollection 2018. PMID:29995887[10]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Yoshida A, Twele TW, Dave V, Beutler E. Molecular abnormality of a phosphoglycerate kinase variant (PGK-Alabama). Blood Cells Mol Dis. 1995;21(3):179-81. PMID:8673469 doi:S1079-9796(85)70020-4
- ↑ Cohen-Solal M, Valentin C, Plassa F, Guillemin G, Danze F, Jaisson F, Rosa R. Identification of new mutations in two phosphoglycerate kinase (PGK) variants expressing different clinical syndromes: PGK Creteil and PGK Amiens. Blood. 1994 Aug 1;84(3):898-903. PMID:8043870
- ↑ Ookawara T, Dave V, Willems P, Martin JJ, de Barsy T, Matthys E, Yoshida A. Retarded and aberrant splicings caused by single exon mutation in a phosphoglycerate kinase variant. Arch Biochem Biophys. 1996 Mar 1;327(1):35-40. PMID:8615693 doi:https://dx.doi.org/10.1006/abbi.1996.0089
- ↑ Valentin C, Birgens H, Craescu CT, Brodum-Nielsen K, Cohen-Solal M. A phosphoglycerate kinase mutant (PGK Herlev; D285V) in a Danish patient with isolated chronic hemolytic anemia: mechanism of mutation and structure-function relationships. Hum Mutat. 1998;12(4):280-7. PMID:9744480 doi:<280::AID-HUMU10>3.0.CO;2-V 10.1002/(SICI)1098-1004(1998)12:4<280::AID-HUMU10>3.0.CO;2-V
- ↑ Maeda M, Yoshida A. Molecular defect of a phosphoglycerate kinase variant (PGK-Matsue) associated with hemolytic anemia: Leu----Pro substitution caused by T/A----C/G transition in exon 3. Blood. 1991 Mar 15;77(6):1348-52. PMID:2001457
- ↑ Maeda M, Bawle EV, Kulkarni R, Beutler E, Yoshida A. Molecular abnormalities of a phosphoglycerate kinase variant generated by spontaneous mutation. Blood. 1992 May 15;79(10):2759-62. PMID:1586722
- ↑ Fujii H, Kanno H, Hirono A, Shiomura T, Miwa S. A single amino acid substitution (157 Gly----Val) in a phosphoglycerate kinase variant (PGK Shizuoka) associated with chronic hemolysis and myoglobinuria. Blood. 1992 Mar 15;79(6):1582-5. PMID:1547346
- ↑ Fujii H, Chen SH, Akatsuka J, Miwa S, Yoshida A. Use of cultured lymphoblastoid cells for the study of abnormal enzymes: molecular abnormality of a phosphoglycerate kinase variant associated with hemolytic anemia. Proc Natl Acad Sci U S A. 1981 Apr;78(4):2587-90. PMID:6941312
- ↑ Fujii H, Yoshida A. Molecular abnormality of phosphoglycerate kinase-Uppsala associated with chronic nonspherocytic hemolytic anemia. Proc Natl Acad Sci U S A. 1980 Sep;77(9):5461-5. PMID:6933565
- ↑ Fiorillo A, Petrosino M, Ilari A, Pasquo A, Cipollone A, Maggi M, Chiaraluce R, Consalvi V. The phosphoglycerate kinase 1 variants found in carcinoma cells display different catalytic activity and conformational stability compared to the native enzyme. PLoS One. 2018 Jul 11;13(7):e0199191. doi: 10.1371/journal.pone.0199191., eCollection 2018. PMID:29995887 doi:https://dx.doi.org/10.1371/journal.pone.0199191
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