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N-terminal domain of adenylylcyclase associated protein, CAP superfamily
SCOP classification
Superfamily statistics
Functional annotation
| General category | Regulation |
| Detailed category | Other regulatory function |
Document: Function annotation of SCOP domain superfamilies
InterPro annotation
| Cross references | IPR013992 SSF101278 Protein matches |
| Abstract | Cyclase-associated protein (CAP) is a conserved two-domain protein that helps to activate the catalytic activity of adenylyl cyclase in
the cyclase-bound state through interaction with Ras, which binds to the cyclase in a different region. With its other domain, CAP can
bind monomeric actin and therefore also carries a cytoskeletal function. The protein is thus involved in Ras/cAMP-dependent signal
transduction and most likely serves as an adapter protein translocating the adenylyl cyclase complex to the actin cytoskeleton [ 1550959, 7962207].
Structurally, CAP is a protein of 474 to 551 residues. The N- and C-terminal domains of CAP are connected by an intermediate section which contains a proline-rich region. In the yeast protein, this domain has
been further divided into the P1 and P2 regions. While the P1 region is constituted by a 14 amino-acid sequence of unknown function, the P2 region exhibits a
consensus SH3-binding motif (PXXP) and is necessary to target CAP to cortical actin patches. Dictyostelium CAP is a phosphatidylinositol 4,5-biphosphate (PIP2) regulated G-actin sequestering protein, which is present in the cytosol and shows
enrichment at plasma-membrane regions. The cortical translocation is mediated by the N-terminal domain [12351838]. |
InterPro database
PDBeMotif information about ligands, sequence and structure motifs
PDBeMotif resource
Jump to [ Top of page · SCOP classification · InterPro annotation · PDBeMotif links · Functional annotation ]
Internal database links
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Browse genome assignments for this superfamily. The SUPERFAMILY hidden Markov model library has been used to carry
out SCOP domain assignments to all genomes at the superfamily level.
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Alignments of sequences to 1 models
in this superfamily are available by clicking on the 'Alignments' icon above. PDB sequences less than 40% identical
are shown by default, but any other sequence(s) may be aligned. Select PDB sequences, genome sequences, or paste in or upload your own sequences.
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Browse and view proteins in genomes which have
different domain combinations including a N-terminal domain of adenylylcyclase associated protein, CAP domain.
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Examine the distribution of domain superfamilies, or families, across the major taxonomic kingdoms or genomes within a kingdom. This gives an immediate impression of how superfamilies, or families, are restricted to certain kingdoms of life.
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Explore domain occurrence network where nodes represent genomes and edges are domain architectures (shared between genomes) containing the superfamily of interest.
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There are 1 hidden Markov models representing the N-terminal domain of adenylylcyclase associated protein, CAP superfamily. Information on how the models are built, and plots showing hydrophobicity, match emmission probabilities and insertion/deletion probabilities can be inspected.
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Jump to [ Top of page · SCOP classification · InterPro annotation · PDBeMotif links · Functional annotation · Internal database links ]
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