UniProtKB - P97546 (NPTN_RAT)
Neuroplastin
Nptn
Functioni
Probable homophilic and heterophilic cell adhesion molecule involved in long term potentiation at hippocampal excitatory synapses through activation of p38MAPK (PubMed:10759566, PubMed:16925595).
May also regulate neurite outgrowth by activating the FGFR1 signaling pathway (PubMed:10759566, PubMed:16925595).
May play a role in synaptic plasticity (PubMed:10759566, PubMed:16925595).
Also acts as a chaperone for ATP2B1; stabilizes ATP2B1 and increases its ATPase activity. Promotes localization of XKR8 at the cell membrane (By similarity).
By similarity2 PublicationsGO - Molecular functioni
- cell adhesion molecule binding Source: HGNC-UCL
- cell-cell adhesion mediator activity Source: GO_Central
- transmembrane transporter binding Source: RGD
- type 1 fibroblast growth factor receptor binding Source: UniProtKB
GO - Biological processi
- axon guidance Source: GO_Central
- cellular calcium ion homeostasis Source: RGD
- dendrite self-avoidance Source: GO_Central
- excitatory synapse assembly Source: RGD
- homophilic cell adhesion via plasma membrane adhesion molecules Source: HGNC-UCL
- long-term synaptic potentiation Source: UniProtKB
- modulation of chemical synaptic transmission Source: RGD
- negative regulation of cytokine production Source: UniProtKB
- positive regulation of cytosolic calcium ion concentration Source: UniProtKB
- positive regulation of ERK1 and ERK2 cascade Source: RGD
- positive regulation of fibroblast growth factor receptor signaling pathway Source: UniProtKB
- positive regulation of long-term neuronal synaptic plasticity Source: HGNC-UCL
- positive regulation of long-term synaptic potentiation Source: RGD
- positive regulation of neuron projection development Source: UniProtKB
- positive regulation of protein localization Source: RGD
- positive regulation of protein phosphorylation Source: UniProtKB
- regulation of cell adhesion Source: HGNC-UCL
- regulation of receptor localization to synapse Source: RGD
- synapse organization Source: RGD
- trans-synaptic signaling by trans-synaptic complex, modulating synaptic transmission Source: SynGO
- visual learning Source: RGD
Keywordsi
Biological process | Cell adhesion, Neurogenesis |
Names & Taxonomyi
Protein namesi | Recommended name: NeuroplastinAlternative name(s): Glycoprotein 55/65 Short name: gp55/65 Stromal cell-derived receptor 1 Short name: SDR-1 |
Gene namesi | Name:Nptn Synonyms:Sdfr1, Sdr1 |
Organismi | Rattus norvegicus (Rat) |
Taxonomic identifieri | 10116 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Myomorpha › Muroidea › Muridae › Murinae › Rattus |
Proteomesi |
|
Organism-specific databases
RGDi | 620296, Nptn |
Subcellular locationi
Plasma membrane
- Cell membrane Curated; Single-pass type I membrane protein Curated
Other locations
- postsynaptic density 1 Publication
Plasma Membrane
- immunological synapse Source: UniProtKB
- integral component of postsynaptic density membrane Source: SynGO
- integral component of presynaptic active zone membrane Source: SynGO
- plasma membrane Source: GO_Central
- postsynaptic membrane Source: HGNC-UCL
- presynaptic membrane Source: HGNC-UCL
- synaptic membrane Source: RGD
Other locations
- axon Source: GO_Central
- cell surface Source: RGD
- dendrite Source: RGD
- GABA-ergic synapse Source: SynGO
- glutamatergic synapse Source: SynGO
- inhibitory synapse Source: RGD
- integral component of membrane Source: BHF-UCL
- postsynaptic density Source: RGD
- Schaffer collateral - CA1 synapse Source: SynGO
Topology
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Topological domaini | 29 – 338 | ExtracellularSequence analysisAdd BLAST | 310 | |
Transmembranei | 339 – 359 | HelicalBy similarityAdd BLAST | 21 | |
Topological domaini | 360 – 393 | CytoplasmicSequence analysisAdd BLAST | 34 |
Keywords - Cellular componenti
Cell junction, Cell membrane, Membrane, SynapsePTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Signal peptidei | 1 – 28 | By similarityAdd BLAST | 28 | |
ChainiPRO_0000394472 | 29 – 393 | NeuroplastinAdd BLAST | 365 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Disulfide bondi | 52 ↔ 116 | PROSITE-ProRule annotation | ||
Disulfide bondi | 169 ↔ 217 | PROSITE-ProRule annotation1 Publication | ||
Glycosylationi | 170 | N-linked (GlcNAc...) asparagine1 Publication | 1 | |
Glycosylationi | 196 | N-linked (GlcNAc...) asparagineCombined sources | 1 | |
Glycosylationi | 228 | N-linked (GlcNAc...) asparagineCombined sources1 Publication | 1 | |
Disulfide bondi | 258 ↔ 315 | PROSITE-ProRule annotation1 Publication | ||
Glycosylationi | 283 | N-linked (GlcNAc...) asparagine1 Publication | 1 | |
Glycosylationi | 295 | N-linked (GlcNAc...) asparagine1 Publication | 1 | |
Glycosylationi | 316 | N-linked (GlcNAc...) asparagineSequence analysis | 1 |
Post-translational modificationi
Keywords - PTMi
Disulfide bond, GlycoproteinProteomic databases
jPOSTi | P97546 |
PaxDbi | P97546 |
PRIDEi | P97546 |
PTM databases
GlyGeni | P97546, 6 sites, 35 N-linked glycans (2 sites) |
iPTMneti | P97546 |
PhosphoSitePlusi | P97546 |
SwissPalmi | P97546 |
Expressioni
Tissue specificityi
Developmental stagei
Gene expression databases
Bgeei | ENSRNOG00000009029, Expressed in frontal cortex and 21 other tissues |
Genevisiblei | P97546, RN |
Interactioni
Subunit structurei
Interacts with ATP2B1; this interaction stabilizes ATP2B1 and increases ATPase activity; this interaction controls T cell calcium homeostasis following T cell activation.
Interacts with XKR8; promoting its localization at the cell membrane.
By similarityGO - Molecular functioni
- cell adhesion molecule binding Source: HGNC-UCL
- cell-cell adhesion mediator activity Source: GO_Central
- transmembrane transporter binding Source: RGD
- type 1 fibroblast growth factor receptor binding Source: UniProtKB
Protein-protein interaction databases
BioGRIDi | 248557, 1 interactor |
IntActi | P97546, 1 interactor |
MINTi | P97546 |
STRINGi | 10116.ENSRNOP00000012091 |
Structurei
Secondary structure
3D structure databases
AlphaFoldDBi | P97546 |
SMRi | P97546 |
ModBasei | Search... |
PDBe-KBi | Search... |
Miscellaneous databases
EvolutionaryTracei | P97546 |
Family & Domainsi
Domains and Repeats
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Domaini | 29 – 134 | Ig-like 1Add BLAST | 106 | |
Domaini | 148 – 234 | Ig-like 2Add BLAST | 87 | |
Domaini | 237 – 327 | Ig-like 3Add BLAST | 91 |
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 149 – 161 | Narpin; mediates binding with FGFR1 and has antidepressant-like activityAdd BLAST | 13 | |
Regioni | 366 – 393 | DisorderedSequence analysisAdd BLAST | 28 |
Domaini
Keywords - Domaini
Immunoglobulin domain, Repeat, Signal, Transmembrane, Transmembrane helixPhylogenomic databases
eggNOGi | ENOG502QPKN, Eukaryota |
GeneTreei | ENSGT00940000156195 |
HOGENOMi | CLU_058449_1_1_1 |
InParanoidi | P97546 |
OMAi | HPTWTWH |
OrthoDBi | 1021787at2759 |
PhylomeDBi | P97546 |
Family and domain databases
Gene3Di | 2.60.40.10, 3 hits |
InterProi | View protein in InterPro IPR043204, Basigin-like IPR007110, Ig-like_dom IPR036179, Ig-like_dom_sf IPR013783, Ig-like_fold IPR003599, Ig_sub IPR003598, Ig_sub2 IPR027112, Neuroplastin |
PANTHERi | PTHR10075, PTHR10075, 1 hit PTHR10075:SF5, PTHR10075:SF5, 1 hit |
SMARTi | View protein in SMART SM00409, IG, 3 hits SM00408, IGc2, 2 hits |
SUPFAMi | SSF48726, SSF48726, 3 hits |
PROSITEi | View protein in PROSITE PS50835, IG_LIKE, 3 hits |
s (3+)i Sequence
Sequence statusi: Complete.
: The displayed sequence is further processed into a mature form. Sequence processingi
This entry describes 3 produced by isoformsialternative splicing. AlignAdd to basketThis entry has 3 described isoforms and 3 potential isoforms that are computationally mapped.Show allAlign All
This isoform has been chosen as the sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry. canonicali
10 20 30 40 50
MSGSSLPGAL ALSLLLVSGS LLPGPGAAQN AGFVKSPMSE TKLTGDAFEL
60 70 80 90 100
YCDVVGSPTP EIQWWYAEVN RAESFRQLWD GARKRRVTVN TAYGSNGVSV
110 120 130 140 150
LRITRLTLED SGTYECRASN DPKRNDLRQN PSITWIRAQA TISVLQKPRI
160 170 180 190 200
VTSEEVIIRD SLLPVTLQCN LTSSSHTLMY SYWTKNGVEL TATRKNASNM
210 220 230 240 250
EYRINKPRAE DSGEYHCVYH FVSAPKANAT IEVKAAPDIT GHKRSENKNE
260 270 280 290 300
GQDAMMYCKS VGYPHPEWMW RKKENGVFEE ISNSSGRFFI INKENYTELN
310 320 330 340 350
IVNLQITEDP GEYECNATNS IGSASVSTVL RVRSHLAPLW PFLGILAEII
360 370 380 390
ILVVIIVVYE KRKRPDEVPD AGPMKTNSTN NHKDKNLRQR NTN
Computationally mapped potential isoform sequencesi
There are 3 potential isoforms mapped to this entry.BLASTAlignShow allAdd to basketA0A8I5ZLH4 | A0A8I5ZLH4_RAT | Neuroplastin | Nptn | 171 | Annotation score: | ||
A0A8I5ZN34 | A0A8I5ZN34_RAT | Neuroplastin | Nptn | 193 | Annotation score: | ||
A0A8I6AT28 | A0A8I6AT28_RAT | Neuroplastin | Nptn | 362 | Annotation score: |
Alternative sequence
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Alternative sequenceiVSP_039258 | 31 – 147 | AGFVK…SVLQK → E in isoform 1 and isoform 3. 2 PublicationsAdd BLAST | 117 | |
Alternative sequenceiVSP_039259 | 370 | D → DDDEP in isoform 1. 1 Publication | 1 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | X99337 mRNA Translation: CAA67711.1 X99338 mRNA Translation: CAA67712.1 BC070947 mRNA Translation: AAH70947.1 |
RefSeqi | NP_062253.1, NM_019380.1 [P97546-2] XP_006243236.1, XM_006243174.3 [P97546-1] XP_008764552.1, XM_008766330.2 [P97546-3] |
Genome annotation databases
GeneIDi | 56064 |
KEGGi | rno:56064 |
UCSCi | RGD:620296, rat [P97546-2] |
Keywords - Coding sequence diversityi
Alternative splicingSimilar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | X99337 mRNA Translation: CAA67711.1 X99338 mRNA Translation: CAA67712.1 BC070947 mRNA Translation: AAH70947.1 |
RefSeqi | NP_062253.1, NM_019380.1 [P97546-2] XP_006243236.1, XM_006243174.3 [P97546-1] XP_008764552.1, XM_008766330.2 [P97546-3] |
3D structure databases
Select the link destinations: PDBei RCSB PDBi PDBji Links Updated | PDB entry | Method | Resolution (Å) | Chain | Positions | PDBsum |
2WV3 | X-ray | 1.95 | A | 148-333 | [»] | |
AlphaFoldDBi | P97546 | |||||
SMRi | P97546 | |||||
ModBasei | Search... | |||||
PDBe-KBi | Search... |
Protein-protein interaction databases
BioGRIDi | 248557, 1 interactor |
IntActi | P97546, 1 interactor |
MINTi | P97546 |
STRINGi | 10116.ENSRNOP00000012091 |
PTM databases
GlyGeni | P97546, 6 sites, 35 N-linked glycans (2 sites) |
iPTMneti | P97546 |
PhosphoSitePlusi | P97546 |
SwissPalmi | P97546 |
Proteomic databases
jPOSTi | P97546 |
PaxDbi | P97546 |
PRIDEi | P97546 |
Genome annotation databases
GeneIDi | 56064 |
KEGGi | rno:56064 |
UCSCi | RGD:620296, rat [P97546-2] |
Organism-specific databases
CTDi | 27020 |
RGDi | 620296, Nptn |
Phylogenomic databases
eggNOGi | ENOG502QPKN, Eukaryota |
GeneTreei | ENSGT00940000156195 |
HOGENOMi | CLU_058449_1_1_1 |
InParanoidi | P97546 |
OMAi | HPTWTWH |
OrthoDBi | 1021787at2759 |
PhylomeDBi | P97546 |
Miscellaneous databases
EvolutionaryTracei | P97546 |
PROi | PR:P97546 |
Gene expression databases
Bgeei | ENSRNOG00000009029, Expressed in frontal cortex and 21 other tissues |
Genevisiblei | P97546, RN |
Family and domain databases
Gene3Di | 2.60.40.10, 3 hits |
InterProi | View protein in InterPro IPR043204, Basigin-like IPR007110, Ig-like_dom IPR036179, Ig-like_dom_sf IPR013783, Ig-like_fold IPR003599, Ig_sub IPR003598, Ig_sub2 IPR027112, Neuroplastin |
PANTHERi | PTHR10075, PTHR10075, 1 hit PTHR10075:SF5, PTHR10075:SF5, 1 hit |
SMARTi | View protein in SMART SM00409, IG, 3 hits SM00408, IGc2, 2 hits |
SUPFAMi | SSF48726, SSF48726, 3 hits |
PROSITEi | View protein in PROSITE PS50835, IG_LIKE, 3 hits |
MobiDBi | Search... |
Entry informationi
Entry namei | NPTN_RAT | |
Accessioni | P97546Primary (citable) accession number: P97546 Secondary accession number(s): P97547, Q6IRE8 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | January 10, 2006 |
Last sequence update: | June 15, 2010 | |
Last modified: | May 25, 2022 | |
This is version 154 of the entry and version 2 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Chordata Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
3D-structure, Direct protein sequencing, Reference proteomeDocuments
- PDB cross-references
Index of Protein Data Bank (PDB) cross-references