منابع مشابه
Metallothionein Gene Family in the Sea Urchin Paracentrotus lividus: Gene Structure, Differential Expression and Phylogenetic Analysis
Metallothioneins (MT) are small and cysteine-rich proteins that bind metal ions such as zinc, copper, cadmium, and nickel. In order to shed some light on MT gene structure and evolution, we cloned seven Paracentrotus lividus MT genes, comparing them to Echinodermata and Chordata genes. Moreover, we performed a phylogenetic analysis of 32 MTs from different classes of echinoderms and 13 MTs from...
متن کاملStructure and developmental expression of a sea urchin fibrillar collagen gene.
We have isolated and characterized cDNA and genomic clones that specify a Paracentrotus lividus procollagen chain. The cDNAs code for 160 uninterrupted Gly-Xaa-Yaa triplets and a 252-amino acid carboxyl propeptide. Analysis of the deduced amino acid sequences indicated that the sea urchin polypeptide exhibits structural features that are characteristic of the fibril-forming class of collagen mo...
متن کاملStructure and expression of a second sea urchin U1 RNA gene repeat.
There are two tandemly repeated sets of U1 RNA genes in the sea urchin L. variegatus. Each of these genes is present in a 1.4 kb repeat defined by a HindIII site about 450 bases 5' to the gene. The sequences of a member of both repeating units (U1.1 and U1.2) has been determined. The repeats are nearly identical for 550 nucleotides 5' to the gene but show great divergence starting 30 nucleotide...
متن کاملNMR structure of the sea urchin (Strongylocentrotus purpuratus) metallothionein MTA.
The three-dimensional structure of [(113)Cd7]-metallothionein-A (MTA) of the sea urchin Strongylocentrotus purpuratus was determined by homonuclear(1)H NMR experiments and heteronuclear [(1)H, (113)Cd]-correlation spectroscopy. MTA is composed of two globular domains, an N-terminal four-metal domain of the amino acid residues 1 to 36 and a Cd4Cys11cluster, and a C-terminal three-metal domain in...
متن کاملStructure of sea urchin sperm chromatin core particle.
Sea urchin sperm chromatin contains forms of H1, H2A, and H2B which differ from those present in adult tissues. We have delineated some effects of the variant H2A and H2B on chromatin by study of the structure of the core particle from Strongylocentrotus purpuratus sperm. The particle contains 145 base pairs of DNA and equal amounts of the four smaller histones. It sediments at 11 S and has a c...
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ژورنال
عنوان ژورنال: European Journal of Biochemistry
سال: 1989
ISSN: 0014-2956,1432-1033
DOI: 10.1111/j.1432-1033.1989.tb15223.x