Lamin Definition Biology

Lamins a and c 70 and 60 kd respectively have c terminal sequences homologous to the head and tail domains of keratins their peptide maps are similar and significantly different from that of lamin b 67 kd.
Lamin definition biology. Supplement lamin b2 is a protein coupled laminopathies that has been mapped to the g negative subtelomeric band of chromosome 19 that contains 12 exons. Mutations in lamin genes can result in several genetic laminopathies which may be life threatening. In eukaryotic cell the nucleus is the organelle responsible for maintaining the integrity of dna and for controlling cellular activities such as metabolism growth and reproduction by regulating gene expression. It is a double membraned organelle containing nuclear structures such as chromatin nuclear bodies and nuclear matrix the nuclear matrix is the network of fibers.
Definition noun intermediate filament proteins that make up the lattice like matrix in the inner face of the nuclear membrane that lie behind the nuclear envelop. Lamin proteinase in the largest biology dictionary online. Lamina propria structure the lamina propria varies in chemical composition from animal to animal and from organ to organ. Lamin proteins are involved in the disassembling and reforming of the nuclear envelope during mitosis the positioning of nuclear pores and programmed cell death.
Lamin b2 is missing during the follicle center stage of b cell differentiation where nuclear lamin is cleaved by caspase. Lamins proteins that form the nuclear lamina a polymeric structure intercalated between chromatin and the inner nuclear envelope. Lamina definition is a thin plate or scale. Lamins a group of intermediate filament proteins that form the fibrous network nuclear lamina on the inner surface of the nuclear envelope.
How to use lamina in a sentence. Definition noun an intermediate filament protein comprises a lattice like matrix that encodes b type nuclear lamins. Free learning resources for students covering all major areas of biology.