Reviewed,
UniProtKB/Swiss-Prot P97836 (DLGP1_RAT)
Last modified
November 25, 2008.
Version 65.
History...
Clusters with 100%,
90%,
50% identity |
Documents (1) |
Third-party data |
Customize display | text xml rdf/xml gff fasta |
Names and origin
| Protein names | Recommended name: Disks large-associated protein 1 Short name=DAP-1 Alternative name(s): Guanylate kinase-associated protein Short name=rGKAP SAP90/PSD-95-associated protein 1 Short name=SAPAP1 PSD-95/SAP90-binding protein 1 | ||||
| Gene names |
| ||||
| Organism | Rattus norvegicus (Rat) | ||||
| Taxonomic identifier | 10116 [NCBI] | ||||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Sciurognathi › Muroidea › Muridae › Murinae › Rattus |
Protein attributes
| Sequence length | 992 AA. |
| Sequence status | Complete. |
| Sequence processing | The displayed sequence is not processed. |
| Protein existence | Evidence at protein level. |
General annotation (Comments)
| Function | Part of the postsynaptic scaffold in neuronal cells. |
| Subunit structure | Interacts with guanylate kinase-like domain of DLG1, DLG2, DLG3, DLG4 and AIP1. Interacts with the PDZ domain of SHANK1, SHANK2 and SHANK3. Found in a complex with DLG4 and SHANK1, SHANK2 or SHANK3. Found in a complex with DLG4 and BEGAIN. Interacts with DYL2 and LRFN1. |
| Subcellular location | Cell membrane; Peripheral membrane protein. Cell junction › synapse › postsynaptic cell membrane › postsynaptic density. Cell junction › synapse. Note= Found in postsynaptic density of neuronal cells. |
| Tissue specificity | Expressed in brain and testis. |
| Developmental stage | Highest level of isoform 1 in the brain of newborn rats. Increasing levels of isoforms 2, 3, 4, and 5 in the brain of newborn rats from birth to 6 weeks of postnatal development. Increasing but low level of isoform 6 is expressed in the brain from 2 to 6 weeks of postnatal development. |
| Sequence similarities | Belongs to the SAPAP family. |
Ontologies
Keywords | |
|---|---|
| Cellular component | Cell junction Cell membrane Membrane Postsynaptic cell membrane Synapse |
| Coding sequence diversity | Alternative splicing |
| PTM | Phosphoprotein |
Gene Ontology (GO) | |
| Biological process | cell-cell signaling Inferred from electronic annotation. Source: InterPro |
| Cellular component | cell junction Inferred from electronic annotation. Source: UniProtKB-KW postsynaptic membraneInferred from electronic annotation. Source: UniProtKB-KW |
| Molecular function | protein binding Ref.3 Ref.6 Inferred from physical interaction. Source: IntAct |
| Complete GO annotation... | |
Binary interactions
With | Entry | #Exp. | IntAct | Notes |
|---|---|---|---|---|
| Dlg4 | P31016 | 3 | EBI-80901,EBI-375655 | |
| Grip1 | P97879 | 1 | EBI-80901,EBI-936113 | |
| Shank1 | Q9WV48 | 3 | EBI-80901,EBI-80909 |
Alternative products
| This entry describes 6 isoforms produced by alternative splicing. [Align] [Select] | ||||||
| Isoform 1 (identifier: P97836-1) Also known as: SAPAP1; This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. | ||||||
| Isoform 2 (identifier: P97836-4) Also known as: GKAP C; 2A; The sequence of this isoform differs from the canonical sequence as follows: 1-298: Missing. 299-325: QKASVNMDQAVVKSEACQQERSCQYLQ → MIDLFKAEWVSSVCVQVSRNGRTDQVW | ||||||
| Isoform 3 (identifier: P97836-5) Also known as: GKAP A; GKAP1a; The sequence of this isoform differs from the canonical sequence as follows: 1-298: Missing. 299-325: QKASVNMDQAVVKSEACQQERSCQYLQ → MIDLFKAEWVSSVCVQVSRNGRTDQVW 547-574: Missing. | ||||||
| Isoform 4 (identifier: P97836-6) Also known as: GKAP B; 2C; The sequence of this isoform differs from the canonical sequence as follows: 1-298: Missing. 299-325: QKASVNMDQAVVKSEACQQERSCQYLQ → MIDLFKAEWVSSVCVQVSRNGRTDQVW 537-546: Missing. | ||||||
| Isoform 5 (identifier: P97836-7) Also known as: 2B; The sequence of this isoform differs from the canonical sequence as follows: 1-298: Missing. 299-324: QKASVNMDQAVVKSEACQQERSCQYL → MIDLFKAEWVSSVCVQVSRNGRTD | ||||||
| Isoform 6 (identifier: P97836-8) Also known as: 2D; The sequence of this isoform differs from the canonical sequence as follows: 1-298: Missing. 299-325: QKASVNMDQAVVKSEACQQERSCQYLQ → MNLIFHKDILFGVSATK |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 992 | 992 | Disks large-associated protein 1 | PRO_0000174290 | |||||
Regions | |||||||||
| Region | 665 – 676 | 12 | Interaction with DYL2 | ||||||
| Region | 687 – 698 | 12 | Interaction with DYL2 | ||||||
| Motif | 990 – 992 | 3 | PDZ-binding | ||||||
Amino acid modifications | |||||||||
| Modified residue | 123 | 1 | Phosphotyrosine By similarity | ||||||
| Modified residue | 134 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 352 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 362 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 389 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 412 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 421 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 436 | 1 | Phosphothreonine By similarity | ||||||
| Modified residue | 437 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 446 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 499 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 509 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 516 | 1 | Phosphoserine By similarity | ||||||
| Modified residue | 947 | 1 | Phosphoserine By similarity | ||||||
Natural variations | |||||||||
| Alternative sequence | 1 – 298 | 298 | Missing in isoform 2, isoform 3, isoform 4, isoform 5 and isoform 6. | VSP_015415 | |||||
| Alternative sequence | 299 – 325 | 27 | QKASV…CQYLQ → MIDLFKAEWVSSVCVQVSRN GRTDQVW in isoform 2, isoform 3 and isoform 4. | VSP_015416 | |||||
| Alternative sequence | 299 – 325 | 27 | QKASV…CQYLQ → MNLIFHKDILFGVSATK in isoform 6. | VSP_015417 | |||||
| Alternative sequence | 299 – 324 | 26 | QKASV…SCQYL → MIDLFKAEWVSSVCVQVSRN GRTD in isoform 5. | VSP_015418 | |||||
| Alternative sequence | 537 – 546 | 10 | Missing in isoform 4. | VSP_015419 | |||||
| Alternative sequence | 547 – 574 | 28 | Missing in isoform 3. | VSP_015420 | |||||
Experimental info | |||||||||
| Mutagenesis | 990 | 1 | T → A: Abolishes interaction with SHANK1 | ||||||
| Mutagenesis | 991 | 1 | R → D: Abolishes interaction with SHANK1 | ||||||
| Mutagenesis | 992 | 1 | L → A: Abolishes interaction with SHANK1 | ||||||
| Sequence conflict | 636 | 1 | S → T Ref.1 Ref.2 | ||||||
Sequences
| ||||||||||||||||||||||||||||||||||||||||||||||||
References
| [1] | "GKAP, a novel synaptic protein that interacts with the guanylate kinase-like domain of the PSD-95/SAP90 family of channel clustering molecules." Kim E., Naisbitt S., Hsueh Y.-P., Rao A., Rothschild A., Craig A.M., Sheng M. J. Cell Biol. 136:669-678(1997) [PubMed: 9024696] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 2; 3 AND 4), INTERACTION WITH DLG1; DLG2; DLG3 AND DLG4. Tissue: Brain. |
| [2] | "Differential expression of isoforms of PSD-95 binding protein (GKAP/SAPAP1) during rat brain development." Kawashima N., Takamiya K., Sun J., Kitabatake A., Sobue K. FEBS Lett. 418:301-304(1997) [PubMed: 9428732] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 2; 4; 5 AND 6), DEVELOPMENTAL STAGE. |
| [3] | "SAPAPs. A family of PSD-95/SAP90-associated proteins localized at postsynaptic density." Takeuchi M., Hata Y., Hirao K., Toyoda A., Irie M., Takai Y. J. Biol. Chem. 272:11943-11951(1997) [PubMed: 9115257] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1). Tissue: Brain. |
| [4] | "BEGAIN (brain-enriched guanylate kinase-associated protein), a novel neuronal PSD-95/SAP90-binding protein." Deguchi M., Hata Y., Takeuchi M., Ide N., Hirao K., Yao I., Irie M., Toyoda A., Takai Y. J. Biol. Chem. 273:26269-26272(1998) [PubMed: 9756850] [Abstract] Cited for: INTERACTION WITH BEGAIN AND DLG4. |
| [5] | "Proline-rich synapse-associated proteins ProSAP1 and ProSAP2 interact with synaptic proteins of the SAPAP/GKAP family." Boeckers T.M., Winter C., Smalla K.-H., Kreutz M.R., Bockmann J., Seidenbecher C., Garner C.C., Gundelfinger E.D. Biochem. Biophys. Res. Commun. 264:247-252(1999) [PubMed: 10527873] [Abstract] Cited for: INTERACTION WITH DLG4 AND SHANK PROTEINS. |
| [6] | "Synamon, a novel neuronal protein interacting with synapse-associated protein 90/postsynaptic density-95-associated protein." Yao I., Hata Y., Hirao K., Deguchi M., Ide N., Takeuchi M., Takai Y. J. Biol. Chem. 274:27463-27466(1999) [PubMed: 10488079] [Abstract] Cited for: INTERACTION WITH DLG4 AND SHANK1. Tissue: Brain. |
| [7] | "Shank, a novel family of postsynaptic density proteins that binds to the NMDA receptor/PSD-95/GKAP complex and cortactin." Naisbitt S., Kim E., Tu J.C., Xiao B., Sala C., Valtschanoff J., Weinberg R.J., Worley P.F., Sheng M. Neuron 23:569-582(1999) [PubMed: 10433268] [Abstract] Cited for: INTERACTION WITH SHANK PROTEINS, MUTAGENESIS OF THR-990; ARG-991 AND LEU-992. |
| [8] | "A novel multiple PDZ domain-containing molecule interacting with N-methyl-d-aspartate receptors and neuronal cell adhesion proteins." Hirao K., Hata Y., Ide N., Takeuchi M., Irie M., Yao I., Deguchi M., Toyoda A., Suedhof T.C., Takai Y. J. Biol. Chem. 273:21105-21110(1998) [PubMed: 9694864] [Abstract] Cited for: INTERACTION WITH AIP1. |
| [9] | "Proteomic identification of brain proteins that interact with dynein light chain LC8." Navarro-Lerida I., Martinez Moreno M., Roncal F., Gavilanes F., Albar J.P., Rodriguez-Crespo I. Proteomics 4:339-346(2004) [PubMed: 14760703] [Abstract] Cited for: INTERACTION WITH DYL2. |
| [10] | "SALM synaptic cell adhesion-like molecules regulate the differentiation of excitatory synapses." Ko J., Kim S., Chung H.S., Kim K., Han K., Kim H., Jun H., Kaang B.-K., Kim E. Neuron 50:233-245(2006) [PubMed: 16630835] [Abstract] Cited for: INTERACTION WITH LRFN1. |
Cross-references
Sequence databases | |
|---|---|
| U67987 mRNA. Translation: AAC53054.1. AB003594 mRNA. Translation: BAA24265.1. U67137 mRNA. Translation: AAB48587.1. | |
| PIR | T00025. |
| RefSeq | NP_075235.2. |
| UniGene | Rn.90059 |
3D structure databases | |
| ModBase | Search... |
Protein-protein interaction databases | |
| IntAct | P97836. |
PTM databases | |
| PhosphoSite | P97836. |
Genome annotation databases | |
| Ensembl | ENSRNOG00000016196. Rattus norvegicus. [Contig view] |
| GeneID | 65040. |
| KEGG | rno:65040. |
Organism-specific databases | |
| RGD | 620223. Dlgap1. |
Phylogenomic databases | |
| HOVERGEN | P97836. |
Gene expression databases | |
| ArrayExpress | P97836. |
| GermOnline | ENSRNOG00000016196. Rattus norvegicus. |
Family and domain databases | |
| InterPro | IPR005026. GKAP. [Graphical view] |
| Pfam | PF03359. GKAP. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Other Resources | |
| NextBio | 613856. |
Entry information
| Entry name | DLGP1_RAT | ||||||||
| Accession | Primary (citable) accession number: P97836 Secondary accession number(s): O54773, P97841 | ||||||||
| Entry history |
| ||||||||
| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation project | HPI (Human Proteome Initiative) | ||||||||

Clusters with


