Histone III. VI. Two forms of calf thymus histone III.

Microheterogeneity in the amino acid sequence of pea embryo histone III at residue 96 has been established previously. It has been indicated that calf-thymus contains two forms of histone III, with 1 or 2 residues of cysteine, respectively. Evidence is presented here that these two forms are also due to microheterogeneity at residue 96 with one form containing a cysteine residue and the other a serine residue.     

Chromium(III) interactions with nucleotides. III

Some new derivatives of Cr(III) with 5′AMP, 5′ATP, 5′CMP, 5′GMP, 5′IMP and 5′UMP have been obtained by reaction of the starting complexes cis and trans-[Cr(en)₂Cl₂]Cl with the above nucleotides.The complexes were characterized by elemental analysis, conductivity, infrared and electronic spectroscopy, and EPR for the 5′UMP derivative.In all cases, chlorine has been substituted and one ethylenediamine eliminated. The interaction of Cr(III) with the nucleotide seems to occur through the phosphate group and additional interaction through the heterocyclic ring especially for the 5′GMP and 5′IMP derivatives.The 5′UMP complex seems to be a dimer and the other complexes are polymer.     

Addenda Clavariacea. III

1. The following noveltiea are described, with notes on otherspecies of their genera : Aphelaria subgen. Tremellodendropsis for the A. tuberosa alliancewith subtremellaceous basidia: A. amboinensis (Lév.)comb. nov. Chaetotyphula gelatinosa sp. nov. and C. tetraspora sp. nov.from Tropical America, whence C. hyalina (Jungh.) Corner isalso recorded. Clavariadelphus junceus (Fr.) Corner is recorded from Brazil. Mucronella flava sp. nov. from Iowa. Phaeoapheloria austra1iensis gen. et sp. nov. is intermediatebetween Aphelaria and stereoid fungi. Pistillaria trispora sp. nov. from Iowa: P. tucumanensis (Speg.)comb. nov. for Typhula tucumanensis Speg. Phistillina calyx Heim is excluded as marasmioid. 2. The Physalacria-subseriea is reviewed, and the followingare described aa new: Hormomitaria albidula sp. nov. from Brazil Pseudotyhula gen. nov. from West Africa: P. ochracea sp. nov.as the typespecies : P. tenuipes (Lloyd) comb. nov. (= Mucronellatenuipes Lloyd).     

Teratologische Notizen. III

Ohne ZusammenfassungVgl. diese Zeitschrift, Jahrgang 1922, S. 224–226, Jahrg. 1924, S. 58–60.