T. Takubo et al., AN ENZYME-LINKED-IMMUNOSORBENT-ASSAY AND REFERENCE RANGES FOR BISPHOSPHOGLYCERATE MUTASE IN HUMAN ERYTHROCYTES, Journal of clinical laboratory analysis, 12(5), 1998, pp. 263-267
We established an enzyme-linked immunosorbent assay (ELISA) system for
the determination of human bisphosphoglycerate mutase (BPGM) protein
content in human erythrocytes using a polyclonal anti-BPGM antibody, w
e determined reference ranges for BPGM protein content, synthase activ
ity, and specific activity in human erythrocytes. We produced a recomb
inant human BPGM (rBPGM) by gene manipulation using E. coli and then o
btained the polyclonal antibody by immunizing rabbits with purified rB
PGM. The reproducibility of the ELISA was in an acceptable range with
a coefficient of variation under 1.5%. The ELISA was reliable in the r
ange of 0.1 to 10 ng/mL. The polyclonal anti-rBPGM antibody did not sh
ow any cross-reaction with recombinant human B type phosphoglycerate m
utase, which is highly homologous to rBPGM. The ELISA was found to be
practical for the determination of BPGM protein content in human eryth
rocytes. The mean BPGM protein content was 56.3 +/- 9.7 mu g/mL in who
le blood (mean +/- SD, n = 50). The ELISA can be used to examine vario
us hematologic disorders with abnormal red cell size and cell counts,
and to detect BPGM enzymopathy in human erythrocytes. J. Clin. Lab. An
al. 12:263-267, 1998. (C) 1998 Wiley-Liss, Inc.