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- * Natriuretic peptides receptors signature *
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-
- Natriuretic peptides are hormones involved in the regulation of fluid and
- electrolyte homeostasis. These hormones stimulate the intracellular production
- of cyclic GMP as a second messenger.
-
- Currently, three types of natriuretic peptide receptors are known [1,2]. Two
- express guanylate cyclase activity: GC-A (or ANP-A) which seems specific to
- atrial natriuretic peptide (ANP), and GC-B (or ANP-B) which seems to be
- stimulated more effectively by brain natriuretic peptide (BNP) than by ANP.
- The third receptor (ANP-C) is probably responsible for the clearance of ANP
- from the circulation and does not play a role in signal transduction.
-
- GC-A and GC-B are plasma membrane-bound proteins that share the following
- topology: an N-terminal extracellular domain which acts as the ligand binding
- region, then a transmembrane domain followed by a large cytoplasmic C-
- terminal region that can be subdivided into two domains: a protein kinase-like
- domain that appears important for proper signalling and a cyclase catalytic
- domain (for more details see the entry describing the pattern for guanylate
- cyclases). The topology of ANP-C is different: like GC-A and -B it possesses
- an extracellular ligand-binding region and a transmembrane domain, but its
- cytoplasmic domain is very short.
-
- We developed a pattern from the ligand-binding region of natriuretic peptide
- receptors based on a highly conserved region located in the N-terminal part of
- the domain.
-
- -Consensus pattern: G-P-x-C-x-Y-x-A-A-x-V-x-R-x(3)-H-W
- -Sequences known to belong to this class detected by the pattern: ALL.
- -Other sequence(s) detected in SWISS-PROT: NONE.
- -Last update: May 1991 / First entry.
-
- [ 1] Garbers D.L.
- New Biol. 2:499-504(1990).
- [ 2] Schulz S., Chinkers M., Garbers D.L.
- FASEB J. 2:2026-2035(1989).
-