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0SHAN2_HUMAN*   SwissProt (?) | Description Local Annotation Link Reference
General Information
DescriptionSh3 and multiple ankyrin repeat domains protein 2 (shank2).
SpeciesHomo sapiens (NCBI taxonomy ID: 9606)
GO0030160 GKAP/Homer scaffold activity (NAS)
0005515 protein binding (IPI)
0007242 intracellular signaling cascade (NAS)

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schematic display of those terms with internal associations, click the node and browse the corresponding GO term
Domain Architecture (Details)
InterPro domains unassigned to SynO:
The sterile alpha motif (SAM) domain is a putative protein interaction module present in a wide variety of proteins involved in many biological processes. The SAM domain that spreads over around 70 residues is found in diverse eukaryotic organisms . SAM domains have been shown to homo- and hetero-oligomerise.orming multiple self-association architectures and also binding to various non-SAM domain-containing proteins .evertheless with a low affinity constant . SAM domains also appear to possess the ability to bind RNA . Smaug a protein that helps to establish a morphogen gradient in Drosophila embryos by repressing the translation of nanos (nos) mRNA binds to the 3 untranslated region (UTR) of nos mRNA via two similar hairpin structures. The 3D crystal structure of the Smaug RNA-binding region shows a cluster of positively charged residues on the Smaug-SAM domain.hich could be the RNA-binding surface. This electropositive potential is unique among all previously determined SAM-domain structures and is conserved among Smaug-SAM homologs. These results suggest that the SAM domain might have a primary role in RNA binding. Structural analyses show that the SAM domain is arranged in a small five-helix bundle with two large interfaces . In the case of the SAM domain of EphB2.ach of these interfaces is able to form dimers. The presence of these two distinct intermonomers binding surface suggest that SAM could form extended polymeric structures .
  IPR001660:Sterile alpha motif SAM
PDZ domains are found in diverse signaling proteins in bacteria.easts.lants.nsects and vertebrates . PDZ domains can occur in one or multiple copies and are nearly always found in cytoplasmic proteins. They bind either the carboxyl-terminal sequences of proteins or internal peptide sequences . In most cases.nteraction between a PDZ domain and its target is constitutive.ith a binding affinity of 1 to 10 ┬ÁM. However.gonist-dependent activation of cell surface receptors is sometimes required to promote interaction with a PDZ protein. PDZ domain proteins are frequently associated with the plasma membrane. compartment where high concentrations of phosphatidylinositol 4.-bisphosphate (PIP2) are found. Direct interaction between PIP2 and a subset of class II PDZ domains (syntenin.ASK.iam-1) has been demonstrated. PDZ domains consist of 80 to 90 amino acids comprising six beta-strands (betaA to betaF) and two alpha-helices. and B.ompactly arranged in a globular structure. Peptide binding of the ligand takes place in an elongated surface groove as an antiparallel beta-strand interacts with the betaB strand and the B helix. The structure of PDZ domains allows binding to a free carboxylate group at the end of a peptide through a carboxylate-binding loop between the betaA and betaB strands.
Sterile alpha motif (SAM) domains are known to be involved in diverse protein-protein interactions.ssociating with both SAM-containing and non-SAM-containing proteins pathway . SAM domains exhibit a conserved structure.onsisting of a 4-5-helical bundle of two orthogonally packed alpha-hairpins. However SAM domains display a diversity of function.eing involved in interactions with proteins.NA and RNA . The name sterile alpha motif arose from its presence in proteins that are essential for yeast sexual differentiation. The SAM domain has had various names.ncluding SPM.TN (pointed).EP (yeast sterility.ts-related.cG proteins).CR (N-terminal conserved region) and HLH (helix-loop-helix) domain.ll of which are related and can be classified as SAM domains. SAM domains occur in eukaryotic and in some bacterial proteins. Structures have been determined for several proteins that contain SAM domains.ncluding Ets-1 transcription factor.hich plays a role in the development and invasion of tumour cells by regulating the expression of matrix-degrading proteases ; Etv6 transcription factor.ene rearrangements of which have been demonstrated in several malignancies ; EphA4 receptor tyrosine kinase.hich is believed to be important for the correct localization of a motoneuron pool to a specific position in the spinal cord ; EphB2 receptor.hich is involved in spine morphogenesis via intersectin.dc42 and N-Wasp ; p73. p53 homologue involved in neuronal development ; and polyhomeotic.hich is a member of the Polycomb group of genes (Pc-G) required for the maintenance of the spatial expression pattern of homeotic genes .
  IPR013761:Sterile alpha motif-type
This entry represents domains with an immunoglobulin-like (Ig-like) fold.hich consists of a beta-sandwich of seven or more strands in two sheets with a Greek-key topology. Ig-like domains are one of the most common protein modules found in animals.ccurring in a variety of different proteins. These domains are often involved in interactions.ommonly with other Ig-like domains via their beta-sheets . Domains within this fold-family share the same structure.ut can diverge with respect to their sequence. Based on sequence.g-like domains can be classified as V-set domains (antibody variable domain-like).1-set domains (antibody constant domain-like).2-set domains.nd I-set domains (antibody intermediate domain-like). Proteins can contain more than one of these types of Ig-like domains. For example.n the human T-cell receptor antigen CD2.omain 1 (D1) is a V-set domain.hile domain 2 (D2) is a C2-set domain.oth domains having the same Ig-like fold .Domains with an Ig-like fold can be found in many.iverse proteins in addition to immunoglobulin molecules. For example.g-like domains occur in several different types of receptors (such as various T-cell antigen receptors).everal cell adhesion molecules.HC class I and II antigens.s well as the hemolymph protein hemolin.nd the muscle proteins titin.elokin and twitchin.
  IPR013783:Immunoglobulin-like fold
SequencesProtein: SHAN2_HUMAN (1253 aa)
mRNA: NM_012309
Local Annotation
Synapse Ontology
introduce the substructure of the synapse and the location where the molecule can be seen. It will contain all the constructive special organelle and molecule we known.
sdb:0001 Structure/Biochemistry of synapse  (Evidence:keywords)
Postsynaptic compartment is represented by a patch of plasma membrane containing a packed array of neurotransmitter receptors and by an underlying dense matrix, the postsynaptic density (PSD).
sdb:0005 Postsynaptic compartment  (Evidence:keywords)
the plasma membrane of the postsynaptic neuron. It apposes with presynaptic actiove zone.
sdb:0108 postsynaptic plasma membrane  (Evidence:keywords)
sdb:0297 NMDA receptor  (Evidence:keywords)
KO assignmentNot mapped to KEGG
Loci Structure (Details)Loci index, Chromosomal location, Length, Possible relational loci clusterExon1: 1862 residues, 69991609-69997192Exon2: 804 residues, 70009066-70011473Exon3: 9 residues, 70013080-70013101Exon4: 39 residues, 70014028-70014140Exon5: 45 residues, 70016087-70016218Exon6: 5 residues, 70025675-70025684Exon7: 29 residues, 70025958-70026039Exon8: 47 residues, 70026548-70026684Exon9: 43 residues, 70183580-70183705Exon10: 59 residues, 70185348-70185520Exon11: 2 residues, -Jump to SHAN2_HUMAN  
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