Results 221 to 230 of about 675,301 (233)

[46] C3, C5 components and C3a, C4a, and C5a fragments of the complement system

1988
Publisher Summary The proteins C3 and C5 are two components of the complement system, whose apparent main function is to help to defend the human body against bacteria, viruses, yeast, and other foreign particles or substances. These proteins are precursors of several fragments that can serve as ligands for specific receptors present on blood and ...
openaire   +3 more sources

Deficiencies in C4A and C4B isotypes of human complement revealed by isoelectrofocusing and chemical reactivity of activated forms

Russian Journal of Bioorganic Chemistry, 2007
An approach is proposed to detect deficiencies in isotypes A and B of the C4 component of human complement, based on the calculation of the ratio of their IEA activities and the ratio of their quantities determined by isoelectrofocusing of their desialated forms with chemiluminescent detection in an immunoblot.
Lakhtin Mv, Lakhtin Vm, D'iakov Vl, Kozlov Lv   +3 more
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Complement C4a inhibits the secretion of hepatitis B virus screened by surface‐enhanced laser desorption ionization time‐flight mass spectrometry‐based ProteinChip analysis

PROTEOMICS - Clinical Applications, 2015
Ya-nan Song, Gui-biao Zhang, Xue-qing Hu, Yiyu Lu, Yu Zhao, Yang Yang, Yi‐Fu Yang, Yongyu Zhang, Yi-Yang Hu, S. Su   +9 more
semanticscholar   +1 more source

Definitive RFLPs to distinguish between the human complement C4A/C4B isotypes and the major Rodgers/Chido determinants: Application to the study of C4 null alleles

Immunogenetics, 2004
C. Y. Yu, R. Campbell
semanticscholar   +2 more sources

Does complement component C4A protect from autoimmune diseases

Immunology Today, 1997
Diana M. Robins, Frank J. Beurskens, Hans van Dijk   +2 more
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Unravelling the nature of postexertional malaise in myalgic encephalomyelitis/chronic fatigue syndrome: the role of elastase, complement C4a and interleukin‐1β

Journal of Internal Medicine, 2010
Jo Nijs, J. Oosterwijck, M. Meeus, Luc Lambrecht, K. Metzger, M. Frémont, Lorna Paul   +6 more
semanticscholar   +1 more source

An immunoassay for the quantitation of complement fragment Ba in vitro

Molecular Immunology, 2010
L. Gomez, L. Shiraki, P. Sexton, N. DeForest, K. Shaw, D. Baker, R.J. DeTorres   +6 more
openaire   +2 more sources

Complete deficiencies of complement C4A and C4B including 2-bp insertion in codon 1213 are genetic risk factors of systemic lupus erythematosus in Thai populations.

Journal of Autoimmunity, 2005
W. Ittiprasert, S. Kantachuvesiri, K. Pavasuthipaisit, Orawan Verasertniyom, Lulin Chaomthum, K. Totemchokchyakarn, Y. Kitiyanant   +6 more
semanticscholar   +1 more source

Sensitive and specific real-time PCR assays to accurately determine gene copy-number variations (CNVs) of human complement C4A, C4B, C4-Long, C4-Short and RCCX modules: Elucidation of C4 GCNVs in 50 consanguineous subjects with defined HLA genotypes

, 2007
Yee-Ling Wu, S. Savelli, Yan Yang, Bi Zhou, B. Rovin, Dan Birmingham, H. Nagaraja, L. Hebert, C. Y. Yu   +8 more
semanticscholar   +1 more source

The human complement C4B/steroid 21-hydroxylase (CYP21) and complement C4A/21-hydroxylase pseudogene (CYP21P) intergenic sequences: comparison and identification of possible regulatory elements.

Biochemical and Biophysical Research Communications - BBRC, 1992
P. Donohoue, M. Collins
semanticscholar   +1 more source