Tag Content
UniProt Accession
Theoretical PI
Molecular Weight
20830 Da  
Genbank Nucleotide ID
Genbank Protein ID
Gene Name
Gene Synonyms/Alias
Pbp, Pebp 
Protein Name
Phosphatidylethanolamine-binding protein 1 Hippocampal cholinergic neurostimulating peptide 
Protein Synonyms/Alias
PEBP-1 HCNPpp;Contains:HCNP 
Mus musculus (Mouse) 
NCBI Taxonomy ID
Chromosome Location
View in Ensembl genome browser  
Function in Stage
Function in Cell Type
Probability (GAS) of Function in Spermatogenesis
The probability was calculated by GAS algorithm, ranging from 0 to 1. The closer it is to 1, the more possibly it functions in spermatogenesis.
Temporarily unavailable 
Abstract of related literatures
1. Hippocampal cholinergic neurostimulating peptide stimulates cholinergic phenotype development by inducing choline acetyltransferase in the rat medial septal nucleus in vitro. Adult senescence-accelerated-prone mice/8, a substrain of the senescence-accelerated-prone mouse, show a remarkable age-accelerated deterioration in learning and memory. We cloned mouse hippocampal cholinergic neurostimulating peptide precursor protein complementary DNA. The deduced amino acid sequence showed that the neurostimulating peptide itself is the same as that found in the rat. In situ hybridization revealed that the highest expression of the precursor protein messenger RNA was in hippocampal pyramidal neurons. Compared with a strain of senescence-accelerated-resistant mouse (control mouse), adult senescence-accelerated-prone mice/8 showed increased expression of both the precursor messenger RNA and the neurostimulating peptide-related immunodeposits in the hippocampal CA1 field. The deposits were intensely and diffusely precipitated in neuropils throughout the strata oriens and radiatum in senescence-accelerated-prone mice/8, but not in control mice. The neurostimulating peptide content in the hippocampus was higher in senescence-accelerated-prone mice/8 than in control mice, while its precursor protein itself was not different between the two strains. Furthermore, our previous and present data show that the medial septal and hippocampal choline acetyltransferase activity was significantly lower in senescence-accelerated-prone mice/8 than in control mice. The data suggest that, in hippocampal neurons in adult senescence-accelerated-prone mice/8, the production of hippocampal cholinergic neurostimulating peptide precursor protein in neuronal somata, which is associated with an increased expression of its messenger RNA in the CA1 field, occurs as a consequence of low activity in their presynaptic cholinergic neurons. This is followed by accelerated processing to generate bioactive peptide and transport to its functional fields. However, certain mechanisms reduce the release of the peptide and lead to its accumulation in the neuropil. These disturbances of the septohippocampal cholinergic system might be the biochemical mechanism underlying the characteristic deterioration of senescence-accelerated-prone mice/8. PMID: [10051191] 

2. Serine proteases are involved in many processes in the nervous system and specific inhibitors tightly control their proteolytic activity. Thrombin is thought to play a role in tissue development and homeostasis. To date, protease nexin-1 is the only known endogenous protease inhibitor that specifically interferes with thrombotic activity and is expressed in the brain. In this study, we report the detection of a novel thrombin inhibitory activity in the brain of protease nexin-1(-/-) mice. Purification and subsequent analysis by tandem mass spectrometry identified this protein as the phosphatidylethanolamine-binding protein (PEBP). We demonstrate that PEBP exerts inhibitory activity against several serine proteases including thrombin, neuropsin, and chymotrypsin, whereas trypsin, tissue type plasminogen activator, and elastase are not affected. Since PEBP does not share significant homology with other serine protease inhibitors, our results define it as the prototype of a novel class of serine protease inhibitors. PEBP immunoreactivity is found on the surface of Rat-1 fibroblast cells and although its sequence contains no secretion signal, PEBP-H(6) can be purified from the conditioned medium upon recombinant expression. PMID: [11034991] 

3. This study describes comprehensive polling of transcription start and termination sites and analysis of previously unidentified full-length complementary DNAs derived from the mouse genome. We identify the 5' and 3' boundaries of 181,047 transcripts with extensive variation in transcripts arising from alternative promoter usage, splicing, and polyadenylation. There are 16,247 new mouse protein-coding transcripts, including 5154 encoding previously unidentified proteins. Genomic mapping of the transcriptome reveals transcriptional forests, with overlapping transcription on both strands, separated by deserts in which few transcripts are observed. The data provide a comprehensive platform for the comparative analysis of mammalian transcriptional regulation in differentiation and development. PMID: [16141072] 

4. The National Institutes of Health's Mammalian Gene Collection (MGC) project was designed to generate and sequence a publicly accessible cDNA resource containing a complete open reading frame (ORF) for every human and mouse gene. The project initially used a random strategy to select clones from a large number of cDNA libraries from diverse tissues. Candidate clones were chosen based on 5'-EST sequences, and then fully sequenced to high accuracy and analyzed by algorithms developed for this project. Currently, more than 11,000 human and 10,000 mouse genes are represented in MGC by at least one clone with a full ORF. The random selection approach is now reaching a saturation point, and a transition to protocols targeted at the missing transcripts is now required to complete the mouse and human collections. Comparison of the sequence of the MGC clones to reference genome sequences reveals that most cDNA clones are of very high sequence quality, although it is likely that some cDNAs may carry missense variants as a consequence of experimental artifact, such as PCR, cloning, or reverse transcriptase errors. Recently, a rat cDNA component was added to the project, and ongoing frog (Xenopus) and zebrafish (Danio) cDNA projects were expanded to take advantage of the high-throughput MGC pipeline. PMID: [15489334] 

5. Protein phosphorylation is a complex network of signaling and regulatory events that affects virtually every cellular process. Our understanding of the nature of this network as a whole remains limited, largely because of an array of technical challenges in the isolation and high-throughput sequencing of phosphorylated species. In the present work, we demonstrate that a combination of tandem phosphopeptide enrichment methods, high performance MS, and optimized database search/data filtering strategies is a powerful tool for surveying the phosphoproteome. Using our integrated analytical platform, we report the identification of 5,635 nonredundant phosphorylation sites from 2,328 proteins from mouse liver. From this list of sites, we extracted both novel and known motifs for specific Ser/Thr kinases including a "dipolar" motif. We also found that C-terminal phosphorylation was more frequent than at any other location and that the distribution of potential kinases for these sites was unique. Finally, we identified double phosphorylation motifs that may be involved in ordered phosphorylation. PMID: [17242355] 

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HCNP may be involved in the function of the presynapticcholinergic neurons of the central nervous system. HCNP increasesthe production of choline acetyltransferase but notacetylcholinesterase. Seems to be mediated by a specific receptor(By similarity). 
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Subcellular Location
Tissue Specificity
HCNP is expressed in brain. Increasedexpression in aged senescence-accelerated mice. 
Gene Ontology
GO IDGO termEvidence
GO:0045177 C:apical part of cell IEA:Compara.
GO:0043679 C:axon terminus IEA:Compara.
GO:0009986 C:cell surface IDA:MGI.
GO:0005615 C:extracellular space IEA:Compara.
GO:0005794 C:Golgi apparatus IEA:Compara.
GO:0005741 C:mitochondrial outer membrane IEA:Compara.
GO:0043025 C:neuronal cell body IEA:Compara.
GO:0005791 C:rough endoplasmic reticulum IEA:Compara.
GO:0005625 C:soluble fraction IEA:Compara.
GO:0008021 C:synaptic vesicle IEA:Compara.
GO:0019717 C:synaptosome IEA:Compara.
GO:0005524 F:ATP binding IEA:UniProtKB-KW.
GO:0008289 F:lipid binding IEA:UniProtKB-KW.
GO:0004867 F:serine-type endopeptidase inhibitor activity IEA:UniProtKB-KW.
GO:0007568 P:aging IEA:Compara.
GO:0007420 P:brain development IEA:Compara.
GO:0042755 P:eating behavior IEA:Compara.
GO:0000165 P:MAPK cascade IEA:Compara.
GO:0043409 P:negative regulation of MAPK cascade IEA:Compara.
GO:0001933 P:negative regulation of protein phosphorylation IEA:Compara.
GO:0060409 P:positive regulation of acetylcholine metabolic process IEA:Compara.
GO:0043950 P:positive regulation of cAMP-mediated signaling IEA:Compara.
GO:0045840 P:positive regulation of mitosis IEA:Compara.
GO:0001505 P:regulation of neurotransmitter levels IEA:Compara.
GO:0002026 P:regulation of the force of heart contraction IEA:Compara.
GO:0014823 P:response to activity IEA:Compara.
GO:0051592 P:response to calcium ion IEA:Compara.
GO:0051591 P:response to cAMP IEA:Compara.
GO:0051412 P:response to corticosterone stimulus IEA:Compara.
GO:0042493 P:response to drug IEA:Compara.
GO:0051602 P:response to electrical stimulus IEA:Compara.
GO:0045471 P:response to ethanol IEA:Compara.
GO:0009408 P:response to heat IEA:Compara.
GO:0014070 P:response to organic cyclic compound IEA:Compara.
GO:0010243 P:response to organic nitrogen IEA:Compara.
GO:0006979 P:response to oxidative stress IEA:Compara.
GO:0009636 P:response to toxin IEA:Compara.
GO:0009611 P:response to wounding IEA:Compara.
GO:0048240 P:sperm capacitation IDA:MGI.
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IPR001858;    Phosphotidylethanolamine-bd_CS.
IPR008914;    PtdEtn-bd_prot_PEBP.
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PF01161;    PBP;    1.
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PS01220;    PBP;    1.
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Created Date
Record Type
GAS predicted 
Sequence Annotation
INIT_MET      1      1       Removed.
CHAIN         2    187       Phosphatidylethanolamine-binding protein
PEPTIDE       2     12       Hippocampal cholinergic neurostimulating
REGION       93    134       Interaction with RAF1 (By similarity).
MOD_RES       2      2       N-acetylalanine; in peptide hippocampal
                             cholinergic neurostimulating (By
MOD_RES      42     42       Phosphothreonine (By similarity).
MOD_RES      51     51       Phosphoserine.
MOD_RES      52     52       Phosphoserine.
MOD_RES      54     54       Phosphoserine.
CONFLICT    116    116       G -> S (in Ref. 1; AAB06983).
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Nucleotide Sequence
Length: 1180 bp   Go to nucleotide: FASTA
Protein Sequence
Length: 187 bp   Go to amino acid: FASTA
The verified Protein-Protein interaction information
Gene Symbol Ref Databases
Other Protein-Protein interaction resources
String database  
View Microarray data