Macromolecule Annotations for the Entities in PDB 1K8R

Protein Family Annotation Pfam Database Homepage

Chains Pfam Accession Pfam Identifier Pfam Description Type Source
A PF00071 Ras Ras family Domain Includes sub-families Ras, Rab, Rac, Ral, Ran, Rap Ypt1 and more. Shares P-loop motif with GTP_EFTU, arf and myosin_head. See Pfam:PF00009 Pfam:PF00025, Pfam:PF00063. As regards Rab GTPases, these are important regulators of vesicle formation, motility and fusion. They share a fold in common with all Ras GTPases: this is a six-stranded beta-sheet surrounded by five alpha-helices [1]. PFAM PF00071
B PF14847 Ras_bdg_2 Ras-binding domain of Byr2 Domain This domain is the binding/interacting region of several protein kinases, such as the Schizosaccharomyces pombe Byr2. Byr2 is a Ser/Thr-specific protein kinase acting as mediator of signals for sexual differentiation in S. pombe by initiating a MAPK module, which is a highly conserved element in eukaryotes. Byr2 is activated by interacting with Ras, which then translocates the molecule to the plasma membrane. Ras proteins are key elements in intracellular signaling and are involved in a variety of vital processes such as DNA transcription, growth control, and differentiation. They function like molecular switches cycling between GTP-bound 'on' and GDP-bound 'off' states [1]. PFAM PF14847

Gene Product Annotation Gene Ontology Consortium Homepage

Chains Polymer Molecular Function Biological Process Cellular Component
A Transforming protein P21/H-RAS-1 (1K8R:A)
B Protein kinase byr2 (1K8R:B)
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Protein Modification Annotation

Type PDB Residue Nr. Description