期刊名称:Proceedings of the National Academy of Sciences
印刷版ISSN:0027-8424
电子版ISSN:1091-6490
出版年度:1986
卷号:83
期号:24
页码:9512-9516
DOI:10.1073/pnas.83.24.9512
语种:English
出版社:The National Academy of Sciences of the United States of America
摘要:Protein 4.1 is an important structural protein that is expressed in erythroid and in a variety of non-erythroid tissues. In mammalian erythrocytes, it plays a key role in regulating membrane physical properties of mechanical stability and deformability by stabilizing spectrin-actin interaction. We report here the molecular cloning and characterization of human erythrocyte protein 4.1 cDNA and the complete amino acid sequence of the protein derived from the nucleotide sequence. Probes prepared from the cloned erythrocyte protein 4.1 cDNA hybridized with distinct mRNA species from a wide variety of non-erythroid tissues, including brain, liver, placenta, pancreas, and intestine, implying substantial homology between erythroid and non-erythroid protein 4.1. The availability of cloned erythrocyte protein 4.1 cDNA should facilitate the study of the functional characteristics of this protein in erythroid as well as non-erythroid cells.