scholarly journals Two-dimensional electrophoresis of plasma membranes, showing differences among wild-type and abnormal ascospore mutant strains of Neurospora crassa.

1983 ◽  
Vol 155 (3) ◽  
pp. 1393-1398 ◽  
Author(s):  
J B Nasrallah ◽  
A M Srb
1988 ◽  
Vol 34 (10) ◽  
pp. 1166-1170 ◽  
Author(s):  
Harry J. Flint ◽  
Janis McKormick

Two-dimensional electrophoresis was used to examine the pattern of polypeptide synthesis in Neurospora crassa mycelium of an arg-6 strain grown in the presence of [14C]arginine. Reduction in the arginine supply rate led to amino acid limited growth, and to major alterations in the pattern of polypeptide synthesis. Strains carrying wild-type (cpc-1+) or mutant (cpc-1) alleles at a locus governing cross-pathway control of amino acid synthetic enzymes differed markedly with respect to their pattern of polypeptide synthesis under limitation conditions, but differed little during arginine sufficient growth. Among 160 abundant polypeptide species classified for their response to limitation in two dimensional fluorographs, 31 were induced by limitation only in a cpc-1+ strain, 13 only in a cpc-1 strain, and 9 showed induction in both strains.


1982 ◽  
Vol 47 (01) ◽  
pp. 019-021 ◽  
Author(s):  
Cemal Kuyas ◽  
André Haeberli ◽  
P Werner Straub

SummaryHuman fibrinogen was compared with asialofibrinogen by two-dimensional electrophoresis to evaluate the contribution of sialic acid to the heterogeneity of the γ- and Bβ-polypeptide chains.Reduced fibrinogen showed three major variants for both the γ- and Bβ-chains. In addition two minor γ-bands with a more acidic isoelectric point than the normal γ-chains were observed. Electrophoresis in the second dimension (SDS) suggests that these most acidic bands are γ-chain-variants with a higher molecular weight. In asialofibrinogen only two predominant variants with more alkaline isoelectric points were present in each chain type.It is concluded that enzymatic removal of sialic acid partially reduces the heterogeneity of the γ- and Bβ-polypeptide chains of human fibrinogen, but additional sources producing charge heterogeneity must be sought.


2012 ◽  
Vol 18 (5) ◽  
pp. 819 ◽  
Author(s):  
Yanhua YANG ◽  
Weitong CUI ◽  
Xiaoyong LIU ◽  
Keming ZHU ◽  
Keping CHEN

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