C0897
Citrate Lyase from Klebsiella pneumoniae
lyophilized powder, ≥0.20 unit/mg solid
Synonym(s):
Citrate oxaloacetate lyase
form
lyophilized powder
Quality Level
specific activity
≥0.20 unit/mg solid
mol wt
>5 kDa
storage temp.
2-8°C
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Application
Citrate Lyase from Klebsiella pneumoniae has been used in the digestion of low molecular weight human milk fraction (>5 kDa referred to as 5kF).
Biochem/physiol Actions
Citrate lyase is found in several microorganisms and catalyzes the first step of citrate degradation, forming acetate and oxaloacetate. The enzyme contains 3 polypeptide subunits, α-subunit (a transferase), β-subunit (acyl lyase) and γ-subunit (acyl-carrier protein).
Physical form
Lyophilized powder containing bovine serum albumin, sucrose, and MgSO4
Other Notes
One unit will convert 1.0 μmole of citrate to oxalacetate per min at pH 7.6 at 25 °C.
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Regulatory Information
含少量动物源组分生物产品
常规特殊物品
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Víctor S Blancato et al.
Journal of bacteriology, 190(22), 7419-7430 (2008-09-23)
The genome of the gram-positive bacterium Enterococcus faecalis contains the genes that encode the citrate lyase complex. This complex splits citrate into oxaloacetate and acetate and is involved in all the known anaerobic bacterial citrate fermentation pathways. Although citrate fermentation
Djamel Drider et al.
Genetics and molecular research : GMR, 3(2), 273-281 (2004-07-22)
Citrate is present in many natural substrates, such as milk, vegetables and fruits, and its metabolism by lactic acid bacteria (LAB) plays an important role in food fermentation. The industrial importance of LAB stems mainly from their ability to convert
M Hupperich et al.
European journal of biochemistry, 192(1), 161-166 (1990-08-28)
The primary structure of the beta-subunit (acyl lyase subunit) of citrate lyase from Klebsiella pneumoniae (ATCC 13,882) was determined with protein chemical methods. The polypeptide chain consists of 289 amino acid residues and has a molecular mass of 31,352 Da.
Loïc Rivière et al.
Proceedings of the National Academy of Sciences of the United States of America, 106(31), 12694-12699 (2009-07-25)
Acetyl-CoA produced in mitochondria from carbohydrate or amino acid catabolism needs to reach the cytosol to initiate de novo synthesis of fatty acids. All eukaryotes analyzed so far use a citrate/malate shuttle to transfer acetyl group equivalents from the mitochondrial
M Martín et al.
FEMS microbiology letters, 174(2), 231-238 (1999-05-26)
The citMCDEFGRP cluster from Leuconostoc paramesenteroides involved in citrate utilization was cloned and its nucleotide sequence determined. Homology of the inferred gene products with characterized enzymes reveals that citP encodes the citrate permease P, citC the citrate ligase and citDEF
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