background: the human aml1 gene, located on chromosome 21, can be fused to the aml1- eight-twenty-one (eto) oncoprotein on chromosome eight, resulting in a t(8;21)(q22;q22) translocation. acute myeloid leukemia (aml) associated with this translocation is considered a distinct aml with a favorable prognosis. due to the various incidences of the translocation, which is associated with geographic ...

A case mongolism due to "hereditary trans­location ·· is presented and discussed. The mother of the patient showed a Karyogram with 45-XX and G/D translocation. She had no stigmata. She had an abortio when she was 19 years old.  In the second pregnancy the amniotic fluid was gained by amniocentesis. The Karyogram showed G/D translocation mongolism. The Karyo­gram of the child's father was norm...

Maturation of Physarum mitochondrial RNA involves the highly specific insertion of nonencoded nucleotides at multiple locations. To investigate the mechanism(s) by which this occurs, we previously developed an isolated mitochondrial system in which run-on transcripts are accurately and efficiently edited by nucleotide insertion. Here we show that under limiting concentrations of exogenous nucle...

25 26 Rapidly increasing fungal genome sequences call for efficient ways of generating mutants to 27 translate quickly gene sequences into their functions. A reverse genetic strategy via targeted 28 gene replacement (TGR) has been inefficient in many filamentous fungi due to dominant 29 production of undesirable ectopic transformants. Although a large-scale random insertional 30 mutagenesis via...

Allelic differences at any one of at least 11 heterokaryon incompatibility (het) loci in Neurospora crassa trigger an incompatibility response: localized cell death at sites of hyphal anastomosis. We have isolated spontaneous and insertional suppressor mutants that are heterokaryon-compatible in spite of allelic differences at one or at several het loci. Some intra- and extragenic mutants toler...

Cancer is one of the leading causes of death in the world. Approximately one fifth of deaths in the western industrial nations are caused by cancer. Every year several hundreds of thousands of new patients are diagnosed with cancer and several thousands die of cancer. Scientists have been conducting research from different angles for effective prevention, diagnosis and cure of Cancer. Ever sinc...

Haemophilus influenzae requires heme for growth and can utilize hemoglobin and hemoglobin-haptoglobin as heme sources. We previously identified two hemoglobin- and hemoglobin-haptoglobin-binding proteins, HgpA and HgpB, in H. influenzae HI689. Insertional mutation of hgpA and hgpB, either singly or together, did not abrogate the ability to utilize or bind either hemoglobin or the hemoglobin-hap...