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. 1997 Jun;63(6):2449–2453. doi: 10.1128/aem.63.6.2449-2453.1997

Catalytic properties of the cellulose-binding endoglucanase F from Fibrobacter succinogenes S85.

S R Malburg 1, L M Malburg Jr 1, T Liu 1, A H Iyo 1, C W Forsberg 1
PMCID: PMC168539  PMID: 9172367

Abstract

The celF gene from the predominant cellulolytic ruminal bacterium Fibrobacter succinogenes encodes a 118.3-kDa cellulose-binding endoglucanase, endoglucanase F (EGF). This enzyme possesses an N-terminal cellulose-binding domain and a C-terminal catalytic domain. The purified catalytic domain displayed an activity profile typical of an endoglucanase, with high catalytic activity on carboxymethyl cellulose and barley beta-glucan. Immunoblotting of EGF and the formerly characterized endoglucanase 2 (EG2) from F. succinogenes with antibodies prepared against each of the enzymes demonstrated that EGF and EG2 contain cross-reactive epitopes. This data in conjunction with evidence that the proteins are the same size, share a 19-residue internal amino acid sequence, possess similar catalytic properties, and both bind to cellulose allows the conclusion that celF codes for EG2.

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Selected References

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  1. Altschul S. F., Gish W., Miller W., Myers E. W., Lipman D. J. Basic local alignment search tool. J Mol Biol. 1990 Oct 5;215(3):403–410. doi: 10.1016/S0022-2836(05)80360-2. [DOI] [PubMed] [Google Scholar]
  2. Denman S., Xue G. P., Patel B. Characterization of a Neocallimastix patriciarum cellulase cDNA (celA) homologous to Trichoderma reesei cellobiohydrolase II. Appl Environ Microbiol. 1996 Jun;62(6):1889–1896. doi: 10.1128/aem.62.6.1889-1896.1996. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Gilkes N. R., Henrissat B., Kilburn D. G., Miller R. C., Jr, Warren R. A. Domains in microbial beta-1, 4-glycanases: sequence conservation, function, and enzyme families. Microbiol Rev. 1991 Jun;55(2):303–315. doi: 10.1128/mr.55.2.303-315.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Huang L., Forsberg C. W. Purification and Comparison of the Periplasmic and Extracellular Forms of the Cellodextrinase from Bacteroides succinogenes. Appl Environ Microbiol. 1988 Jun;54(6):1488–1493. doi: 10.1128/aem.54.6.1488-1493.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Lever M. A new reaction for colorimetric determination of carbohydrates. Anal Biochem. 1972 May;47(1):273–279. doi: 10.1016/0003-2697(72)90301-6. [DOI] [PubMed] [Google Scholar]
  6. Malburg L. M., Jr, Iyo A. H., Forsberg C. W. A novel family 9 endoglucanase gene (celD), whose product cleaves substrates mainly to glucose, and its adjacent upstream homolog (celE) from Fibrobacter succinogenes S85. Appl Environ Microbiol. 1996 Mar;62(3):898–906. doi: 10.1128/aem.62.3.898-906.1996. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. McGavin M., Forsberg C. W. Catalytic and substrate-binding domains of endoglucanase 2 from Bacteroides succinogenes. J Bacteriol. 1989 Jun;171(6):3310–3315. doi: 10.1128/jb.171.6.3310-3315.1989. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. McGavin M., Forsberg C. W. Isolation and characterization of endoglucanases 1 and 2 from Bacteroides succinogenes S85. J Bacteriol. 1988 Jul;170(7):2914–2922. doi: 10.1128/jb.170.7.2914-2922.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Mitsumori M., Minato H., Sekizaki T., Uchida I., Ito H. Cloning, nucleotide sequence and expression of the gene encoding the cellulose-binding protein 1 (CBP1) of Fibrobacter succinogenes S85. FEMS Microbiol Lett. 1996 May 15;139(1):43–50. doi: 10.1111/j.1574-6968.1996.tb08177.x. [DOI] [PubMed] [Google Scholar]
  10. Neu H. C., Heppel L. A. The release of enzymes from Escherichia coli by osmotic shock and during the formation of spheroplasts. J Biol Chem. 1965 Sep;240(9):3685–3692. [PubMed] [Google Scholar]
  11. Ozcan N., Cunningham C., Harris W. J. Cloning of a cellulase gene from the rumen anaerobe Fibrobacter succinogenes SD35 and partial characterization of the gene product. Lett Appl Microbiol. 1996 Jan;22(1):85–89. doi: 10.1111/j.1472-765x.1996.tb01114.x. [DOI] [PubMed] [Google Scholar]
  12. Shima S., Igarashi Y., Kodama T. Nucleotide sequence analysis of the endoglucanase-encoding gene, celCCD, of Clostridium cellulolyticum. Gene. 1991 Jul 31;104(1):33–38. doi: 10.1016/0378-1119(91)90461-j. [DOI] [PubMed] [Google Scholar]
  13. Tomme P., Warren R. A., Gilkes N. R. Cellulose hydrolysis by bacteria and fungi. Adv Microb Physiol. 1995;37:1–81. doi: 10.1016/s0065-2911(08)60143-5. [DOI] [PubMed] [Google Scholar]
  14. Warren R. A. Microbial hydrolysis of polysaccharides. Annu Rev Microbiol. 1996;50:183–212. doi: 10.1146/annurev.micro.50.1.183. [DOI] [PubMed] [Google Scholar]
  15. Yagüe E., Béguin P., Aubert J. P. Nucleotide sequence and deletion analysis of the cellulase-encoding gene celH of Clostridium thermocellum. Gene. 1990 Apr 30;89(1):61–67. doi: 10.1016/0378-1119(90)90206-7. [DOI] [PubMed] [Google Scholar]

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