Any complex of pre-rRNAs, ribosomal proteins, and associated proteins formed during ribosome biogenesis.

The process whose specific outcome is the progression of the nephrostome over time, from its formation to the mature structure. The nephrostome is the opening of the pronephros into the body cavity.

Catalysis of the reaction: 1-amino-1-deoxy-scyllo-inositol 4-phosphate + L-arginine = 1-guanidino-1-deoxy-scyllo-inositol 4-phosphate + L-ornithine.

Catalysis of the reversible transfer of an amidino group to an acceptor.

Synthesis and deposition of a chitin-based noncellular, hardened, or membranous secretion from an epithelial sheet. An example of this process is found in Drosophila melanogaster.

The chemical reactions and pathways resulting in the formation of a cuticle, the outer layer of some animals and plants, which acts to prevent water loss.

The process whose specific outcome is the progression of the pronephric nephron over time, from its formation to the mature structure. A pronephric nephron is the functional unit of the pronephros.

The process whose specific outcome is the progression of the nephron over time, from its formation to the mature structure. A nephron is the functional unit of the kidney.

Any complex of pre-rRNAs, ribosomal proteins, and associated proteins formed in the nucleolus during ribosome biogenesis.

Attaching of a collagen and cuticulin-based cuticle to the epithelium underlying it. An example of this process is found in Caenorhabditis elegans.

The process whose specific outcome is the progression of the pronephric sinus over time, from its formation to the mature structure. The pronephric sinus is an ill-defined capillary network that lies between the pronephric tubules.

Catalysis of the transfer of a one-carbon group from one compound (donor) to another (acceptor).

The process in which the anatomical structures of a pronephric nephron distal tubule are generated and organized. A pronephric nephron tubule is an epithelial tube that is part of the pronephros.

The process in which the anatomical structures of a distal tubule are generated and organized. The distal tubule is a nephron tubule that begins at the macula densa and extends to the connecting tubule.

Catalysis of the reaction: L-arginine + glycine = L-ornithine + guanidinoacetate.

The multiplication or reproduction of cells, resulting in the expansion of the population in the pronephros.

The multiplication or reproduction of cells, resulting in the expansion of the population in the kidney.

Binds to and stops, prevents or reduces the activity of alpha-amylase.

OBSOLETE. An opsin with maximal absorption above 500 nm.