PMID- 14646506 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20031223 LR - 20191108 IS - 1360-8185 (Print) IS - 1360-8185 (Linking) VI - 3 IP - 2 DP - 1998 Mar TI - cDNA cloning of human DNase gamma: chromosomal localization of its gene and enzymatic properties of recombinant protein. PG - 89-95 AB - We report here on the nucleotide sequence of the cDNA encoding human DNase gamma, which is a candidate for an apoptotic endonuclease. The cDNA clone isolated from a human spleen cDNA library is composed of a 918 bp open reading frame encoding a 305 amino acid precursor protein for DNase gamma. Northern blot analysis reveals that the expression of a single transcript of 1.5 kb DNase gamma mRNA is detected in the spleen and liver. The chromosomal localization of DNase gamma gene is mapped to chromosome 3 at region p21.1-p14.2 by fluorescence in situ hybridization (FISH). Characterization of thioredoxin-DNase gamma fusion protein (Trx-hDNase gamma) shows that the recombinant protein has a Ca(2+)/Mg(2+)- or Mn(2+)-dependent endonuclease activity that cleaves chromatin DNA to nucleosomal units. The optimum pH is around 7.2. Zn(2+) and aurintricarboxylic acid (ATA) inhibits the activity in dose-dependent manners. These properties are identical to those of purified DNase gamma. FAU - Shiokawa, D AU - Shiokawa D AD - Department of Biochemistry, Faculty of Pharmaceutical Sciences, Science University of Tokyo, Shinjuku-ku, Tokyo, Japan. FAU - Hirai, M AU - Hirai M FAU - Tanuma, S AU - Tanuma S LA - eng PT - Journal Article PL - Netherlands TA - Apoptosis JT - Apoptosis : an international journal on programmed cell death JID - 9712129 EDAT- 2003/12/04 05:00 MHDA- 2003/12/04 05:01 CRDT- 2003/12/04 05:00 PHST- 2003/12/04 05:00 [pubmed] PHST- 2003/12/04 05:01 [medline] PHST- 2003/12/04 05:00 [entrez] AID - 282252 [pii] AID - 10.1023/a:1009692807692 [doi] PST - ppublish SO - Apoptosis. 1998 Mar;3(2):89-95. doi: 10.1023/a:1009692807692.