High mobility group (HMG) proteins in the tammar wallaby Macropus eugenii: quantitative variations between tissues and testis-specific co-extracted proteins.
1. Tammar wallaby (Macropus eugenii, Marsupialia) proteins with similar electrophoretic mobilities to calf non-histone chromosomal proteins HMG 1, 2, 14 and 17 are perchloric acid extracted from whole tissues (liver, kidney, spleen, brain and testis) and purified liver nuclei (using PCA or 0.35 M NaCl). 2. Tammar and calf HMG 1 have similar amino acid compositions. 3. Two testis-specific basic proteins co-extracting with HMG-like proteins from both tammar and red kangaroo (Megaleia rufa) are found in whole testis, purified testis nuclei, but not epididymis. 4. Tammar HMG 2 separates into two components on both acid urea and SDS gels. The larger, more basic protein, HMG 2b, is relatively abundant in proliferating tissues (testis, spleen).
D000596:Amino Acids / Q000032:analysis; D000818:Animals; D001923:Brain Chemistry; D002467:Cell Nucleus / Q000032:analysis; D004591:Electrophoresis, Polyacrylamide Gel; D004822:Epididymis / Q000032:analysis; D006609:High Mobility Group Proteins / Q000032:analysis*; D007668:Kidney / Q000032:analysis; D008099:Liver / Q000032:analysis; D007614:Macropodidae / Q000378:metabolism*; D008297:Male; D008394:Marsupialia / Q000378:metabolism*; D013154:Spleen / Q000032:analysis; D013737:Testis / Q000032:analysis* / Q000648:ultrastructure
D000596:Amino Acids; D006609:High Mobility Group Proteins