- H zone
A relatively pale zone traversing the center of the A band of a sarcomere, visible in relaxed muscle fibers; consists of the central portion of thick (myosin) filaments that are not overlapped by thin (actin) filaments.
- ilicicolin H biosynthetic process
The chemical reactions and pathways resulting in the formation of ilicicolin H, a 4-hydroxy-2-pyridone alkaloid that has potent and broad antifungal activities by inhibiting the mitochondrial respiration chain.
- obsolete cathepsin H activity
OBSOLETE. Catalysis of the hydrolysis of peptide bonds, acting as an aminopeptidase (notably, cleaving Arg-Xaa bonds) as well as an endopeptidase.
- obsolete cyclin H-CDK7 complex
OBSOLETE. A protein complex consisting of cyclin H and cyclin-dependent kinase 7 (CDK7). Cyclins are characterized by periodicity in protein abundance throughout the cell cycle. Cyclin-dependent kinases represent a family of serine/threonine protein kinases that become active upon binding to a cyclin regulatory partner.
- H-NS complex
A multimer of H-NS proteins that is involved in bacterial nucleoid condensation and negative regulation of global gene expression by directly binding to promoter regions. Recognizes both structural and sequence-specific motifs in double-stranded DNA and has binding preference for bent DNA.