scholarly journals Studies on the high-sulphur proteins of reduced mohair. The isolation and amino acid sequence of protein scmkb-m1.2

1975 ◽  
Vol 145 (3) ◽  
pp. 459-467 ◽  
Author(s):  
D Parris ◽  
L S Swart

The complete amino acid sequence of mohair protein, SCMKB-M1.2 (97 residues), was determined. The protein was isolated from reduced and carboxymethylated mohair by chromatography on DEAE-cellulose phosphate. Peptides for sequence determination were obtained by digestion with trypsin, pepsin, chymotrypsin, thermolysin and papain, and were fractionated by DEAE-cellulose chromatography, paper chromatography and electrophoresis. The sequence of the peptides were determined by the Edman degradation method (by use of both the Beckman Sequence and a non-automatic procedure), and by partial acid hydrolysis. The protein is closely homologous to wool protein SCMKB-IIIB2, and also contains acetylated alanine as N-terminal amino acid.

1972 ◽  
Vol 27 (2) ◽  
pp. 157-159 ◽  
Author(s):  
Walter Vötsch ◽  
F. Alfred Anderer

The N-terminal amino acid sequence of residues 1—50 of sheep heart myoglobin was determined using the automatic Edman degradation procedure. The amino acid phenyl-thiohydantoins were identified by thin layer chromatography and/or by mass spectrometry.


1982 ◽  
Vol 47 (2) ◽  
pp. 535-542 ◽  
Author(s):  
Ladislav Morávek ◽  
Josef Borvák ◽  
Karel Grüner ◽  
Bedřich Meloun ◽  
Petr Štrop ◽  
...  

A simplified procedure was developed for the preparation of hemopexin from Cohn fraction IV obtained from partially hemolyzed pooled samples of serum. The method is based on precipitation with rivanol, chromatography on DEAE-cellulose, and gel filtration; it permits large quantities of the material to be treated on a laboratory scale. The preparation of heme-rich hemopexin obtained was characterized by amino acid analysis and the following N-terminal amino acid sequence: Thr-Pro-Leu-Pro-Arg-Gly-Ser-Ala-His-Gly-Asn-Val-Ala-Glu-Gly-Glu-Thr(Thr)Thr-Asn-Pro-Asp-Val-(Gly)(Leu).


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