Conserved Protein Domain Family

cl09099: P-loop_NTPase Superfamily (this model, PSSM-Id:214148 is obsolete)
P-loop containing Nucleoside Triphosphate Hydrolases
Members of the P-loop NTPase domain superfamily are characterized by a conserved nucleotide phosphate-binding motif, also referred to as the Walker A motif (GxxxxGK[S/T], where x is any residue), and the Walker B motif (hhhh[D/E], where h is a hydrophobic residue). The Walker A and B motifs bind the beta-gamma phosphate moiety of the bound nucleotide (typically ATP or GTP) and the Mg2+ cation, respectively. The P-loop NTPases are involved in diverse cellular functions, and they can be divided into two major structural classes: the KG (kinase-GTPase) class which includes Ras-like GTPases and its circularly permutated YlqF-like; and the ASCE (additional strand catalytic E) class which includes ATPase Binding Cassette (ABC), DExD/H-like helicases, 4Fe-4S iron sulfur cluster binding proteins of NifH family, RecA-like F1-ATPases, and ATPases Associated with a wide variety of Activities (AAA). Also included are a diverse set of nucleotide/nucleoside kinase families.
Taxonomy: root
PubMed: 1018 links
Protein: Related Protein
Related Structure
Accession: cl09099
PSSM Id: 214148
Name: P-loop_NTPase
Created: 8-Feb-2008
Updated: 29-Oct-2012
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