The quantitative changes of the high mobility group (HMG) nonhistone
chromosomal proteins in nondividing, differentiated peritoneal exudate
neutrophils were identified by their solubility, electrophoretic mobility on
both SDS and acetic acid gels, densitometric traces and elution profile on
CM-sephadex. The results indicated that in neutrophils, HMGl undergoes
a considerable reduction (80%) compared to thymus proteins, However,
HMG2 and HMG17 remain constant. Also, HMG14 was not detectable
in neutrophils implying the possible role of the HMG proteins in genome