Milk provides nutritional, immunological and developmental components
for newborns. Whereas identification of such components has been per-formed by targeting proteins and free oligosaccharides, structural and func-tional analyses of the N-glycome of milk glycoproteins are scarce.
Tuyển tập các báo cáo nghiên cứu về bệnh học thý y được đăng trên tạp chí Acta Veterinaria Scandinavica cung cấp cho các bạn kiến thức về bệnh thú y đề tài: A study of bovine mastitis, milking procedures and management practices on 25 Estonian dairy herds...
Tuyển tập các báo cáo nghiên cứu về bệnh học thý y được đăng trên tạp chí Acta Veterinaria Scandinavica cung cấp cho các bạn kiến thức về bệnh thú y đề tài: Bovine renal lipofuscinosis: Prevalence, genetics and impact on milk production and weight at slaughter in Danish cattle...
Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học quốc tế đề tài: Mapping of a milk production quantitative trait locus to a 1.056 Mb region on bovine chromosome 5 in the Fleckvieh dual purpose cattle breed
Lactoferrin (LF) is an iron-binding glycoprotein of the
innate host defence system. To elucidate the role ofN-linked
glycosylation in protection of LF against proteolysis, we
compared the tryptic susceptibility of human LF (hLF)
variants from human milk, expressed in human 293(S) cells
or in the milk of transgenic mice and cows. The analysis
revealed that recombinant hLF (rhLF) with mutations
Ile130fiThr and Gly404fiCys was about twofold more
susceptible than glycosylated and unglycosylated variants
with the naturally occurring Ile130 and Gly404....
The present work reports isolation and characterization of a highly glycosylated protein from bovine milk fat globule membranes, known as PAS III. Partial amino-acid sequencing of the puriﬁed protein allowed construction of degenerate oligonucleotide primers, enabling isolation of a full-length cDNA encoding a protein of 330 amino-acid residues. N-terminal amino-acid sequencing of derived peptides and the puriﬁed protein conﬁrmed 76% of the sequence and demonstrated presence of a cleavable signal peptide of 23 residues, leaving a mature protein of 307 amino acids.
b-lactoglobulin (LG) is a major bovine milk protein, containing a central
calyx and a second exosite beyond the calyx to bind vitamin D; however,
the biological function of LG in transporting vitamin D remains elusive.
Crystallographic findings from our previous study showed the exosite to be
located at the pocket between the a-helix and b-strand I.
Previous work from this laboratory has shown that the
spectral and functional properties of a prokaryotic xanthine
dehydrogenase fromComamonas acidovoransshow some
similarities to those of the well-characterized eukaryotic
enzymes isolated from bovine milk and from chicken liver
[Xiang, Q. & Edmondson, D.E. (1996) Biochemistry35,
5441–5450]. Therefore, this system was chosen to study the
factors involved in the expression of functional recombinant
enzyme in Escherichia colito provide insights into the
assembly of the functional Mo-pyranopterin center....
Th i s book wi 11 be of great interest to anyone
concerned with animal feeds and feeding programs whether
one is studying bovine, porcine, equine, avian or lower
vertebrate (fish and eel) nutrition. This information
is critical to the success of an animal feeding program.
Somet imes the di fference between a successful and a
failing program can be traced to mineral deficiencies
which cause either abnormal growth, reduced milk
production, interrupted fertility and breeding,
compromised immune system integrity and/or decrement in
normal hemoglobin concentration.