Human Gene APBA1 (ENST00000265381.7) from GENCODE V44
  Description: Homo sapiens amyloid beta precursor protein binding family A member 1 (APBA1), mRNA. (from RefSeq NM_001163)
RefSeq Summary (NM_001163): The protein encoded by this gene is a member of the X11 protein family. It is a neuronal adapter protein that interacts with the Alzheimer's disease amyloid precursor protein (APP). It stabilizes APP and inhibits production of proteolytic APP fragments including the A beta peptide that is deposited in the brains of Alzheimer's disease patients. This gene product is believed to be involved in signal transduction processes. It is also regarded as a putative vesicular trafficking protein in the brain that can form a complex with the potential to couple synaptic vesicle exocytosis to neuronal cell adhesion. [provided by RefSeq, Jul 2008].
Gencode Transcript: ENST00000265381.7
Gencode Gene: ENSG00000107282.9
Transcript (Including UTRs)
   Position: hg38 chr9:69,427,532-69,672,371 Size: 244,840 Total Exon Count: 13 Strand: -
Coding Region
   Position: hg38 chr9:69,431,327-69,517,210 Size: 85,884 Coding Exon Count: 12 

Page IndexSequence and LinksUniProtKB CommentsPrimersMalaCardsCTD
RNA-Seq ExpressionMicroarray ExpressionRNA StructureProtein StructureOther SpeciesGO Annotations
mRNA DescriptionsPathwaysOther NamesMethods
Data last updated at UCSC: 2023-08-18 00:09:47

-  Sequence and Links to Tools and Databases
 
Genomic Sequence (chr9:69,427,532-69,672,371)mRNA (may differ from genome)Protein (837 aa)
Gene SorterGenome BrowserOther Species FASTAGene interactionsTable SchemaAlphaFold
BioGPSEnsemblEntrez GeneExonPrimerGencodeGeneCards
HGNCHPRDLynxMalacardsMGIneXtProt
OMIMPubMedReactomeUniProtKBWikipediaBioGrid CRISPR DB

-  Comments and Description Text from UniProtKB
  ID: APBA1_HUMAN
DESCRIPTION: RecName: Full=Amyloid beta A4 precursor protein-binding family A member 1; AltName: Full=Adapter protein X11alpha; AltName: Full=Neuron-specific X11 protein; AltName: Full=Neuronal Munc18-1-interacting protein 1; Short=Mint-1;
FUNCTION: Putative function in synaptic vesicle exocytosis by binding to Munc18-1, an essential component of the synaptic vesicle exocytotic machinery. May modulate processing of the beta- amyloid precursor protein (APP) and hence formation of beta-APP.
SUBUNIT: Part of a multimeric complex containing Munc18-1 and syntaxin-1. Also part of the brain-specific heterotrimeric complex LIN-10/X11-alpha, LIN-2/CASK, and LIN7. Binds to the cytoplasmic domain of amyloid protein (APP). Interacts (via PDZ 1 and 2 domains) with FSPB.
INTERACTION: P05067:APP; NbExp=3; IntAct=EBI-368690, EBI-77613;
SUBCELLULAR LOCATION: Nucleus.
TISSUE SPECIFICITY: Brain and spinal cord.
DOMAIN: Composed of an N-terminal domain that binds Munc18-1 and LIN-2/CASK, a middle phosphotyrosine-binding domain (PID/PTB) that mediates binding with the cytoplasmic domain of the beta-amyloid precursor protein, and two C-terminal PDZ domains thought to attach proteins to the plasma membrane.
DOMAIN: The Autoinhibitory helix linker occludes the APP binding site (By similarity).
SIMILARITY: Contains 2 PDZ (DHR) domains.
SIMILARITY: Contains 1 PID domain.

-  Primer design for this transcript
 

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Click here to load the transcript sequence and exon structure into Primer3Plus

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Click here to open Exonprimer with this transcript

To design primers for a non-coding sequence, zoom to a region of interest and select from the drop-down menu: View > In External Tools > Primer3


-  MalaCards Disease Associations
  MalaCards Gene Search: APBA1
Diseases sorted by gene-association score: alzheimer disease (4), neuronal intranuclear inclusion disease (2), rectal neoplasm (2)

-  Comparative Toxicogenomics Database (CTD)
  The following chemicals interact with this gene           more ... click here to view the complete list

-  RNA-Seq Expression Data from GTEx (53 Tissues, 570 Donors)
  Highest median expression: 29.10 RPKM in Brain - Cortex
Total median expression: 336.91 RPKM



View in GTEx track of Genome Browser    View at GTEx portal     View GTEx Body Map

+  Microarray Expression Data
  Press "+" in the title bar above to open this section.

-  mRNA Secondary Structure of 3' and 5' UTRs
 
RegionFold EnergyBasesEnergy/Base
Display As
5' UTR -165.70288-0.575 Picture PostScript Text
3' UTR -1282.703795-0.338 Picture PostScript Text

The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.

-  Protein Domain and Structure Information
  InterPro Domains: Graphical view of domain structure
IPR001478 - PDZ
IPR011993 - PH_like_dom
IPR006020 - PTyr_interaction_dom

Pfam Domains:
PF00595 - PDZ domain (Also known as DHR or GLGF)
PF00640 - Phosphotyrosine interaction domain (PTB/PID)

Protein Data Bank (PDB) 3-D Structure
MuPIT help
1AQC - X-ray MuPIT 1U37 - NMR MuPIT 1U38 - NMR MuPIT 1U39 - NMR MuPIT 1U3B - NMR MuPIT 1X11 - X-ray MuPIT 1X45 - NMR MuPIT 1Y7N - NMR MuPIT


ModBase Predicted Comparative 3D Structure on Q02410
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-  Orthologous Genes in Other Species
  Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
MouseRatZebrafishD. melanogasterC. elegansS. cerevisiae
Genome BrowserGenome BrowserGenome BrowserGenome BrowserNo orthologNo ortholog
Gene Details     
Gene Sorter     
MGIRGDEnsemblEnsembl  
Protein SequenceProtein SequenceProtein SequenceProtein Sequence  
AlignmentAlignmentAlignmentAlignment  

-  Gene Ontology (GO) Annotations with Structured Vocabulary
  Molecular Function:
GO:0001540 beta-amyloid binding
GO:0005515 protein binding

Biological Process:
GO:0001701 in utero embryonic development
GO:0006886 intracellular protein transport
GO:0007155 cell adhesion
GO:0007268 chemical synaptic transmission
GO:0007269 neurotransmitter secretion
GO:0007399 nervous system development
GO:0007626 locomotory behavior
GO:0008088 axo-dendritic transport
GO:0010468 regulation of gene expression
GO:0014047 glutamate secretion
GO:0014051 gamma-aminobutyric acid secretion
GO:0015031 protein transport
GO:0035264 multicellular organism growth
GO:0065003 macromolecular complex assembly

Cellular Component:
GO:0005634 nucleus
GO:0005737 cytoplasm
GO:0005794 Golgi apparatus
GO:0005829 cytosol
GO:0008021 synaptic vesicle
GO:0016020 membrane
GO:0043005 neuron projection
GO:0048471 perinuclear region of cytoplasm


-  Descriptions from all associated GenBank mRNAs
  L04953 - Human x11 protein (x11) mRNA, 3' end.
AF029106 - Homo sapiens Mint1 mRNA, complete cds.
AF047347 - Homo sapiens adaptor protein X11alpha mRNA, complete cds.
BC156047 - Synthetic construct Homo sapiens clone IMAGE:100062341, MGC:190470 amyloid beta (A4) precursor protein-binding, family A, member 1 (APBA1) mRNA, encodes complete protein.
BC157030 - Synthetic construct Homo sapiens clone IMAGE:100063302, MGC:190732 amyloid beta (A4) precursor protein-binding, family A, member 1 (APBA1) mRNA, encodes complete protein.
AL713639 - Homo sapiens mRNA; cDNA DKFZp761L1121 (from clone DKFZp761L1121).
LF211285 - JP 2014500723-A/18788: Polycomb-Associated Non-Coding RNAs.
MA446862 - JP 2018138019-A/18788: Polycomb-Associated Non-Coding RNAs.
LF345239 - JP 2014500723-A/152742: Polycomb-Associated Non-Coding RNAs.
MA580816 - JP 2018138019-A/152742: Polycomb-Associated Non-Coding RNAs.
JD151110 - Sequence 132134 from Patent EP1572962.
JD441609 - Sequence 422633 from Patent EP1572962.
JD202727 - Sequence 183751 from Patent EP1572962.
JD332123 - Sequence 313147 from Patent EP1572962.
JD473415 - Sequence 454439 from Patent EP1572962.
JD241741 - Sequence 222765 from Patent EP1572962.
JD564974 - Sequence 545998 from Patent EP1572962.
JD116365 - Sequence 97389 from Patent EP1572962.
JD189090 - Sequence 170114 from Patent EP1572962.
JD209058 - Sequence 190082 from Patent EP1572962.
JD285666 - Sequence 266690 from Patent EP1572962.
JD372982 - Sequence 354006 from Patent EP1572962.
CQ873788 - Sequence 207 from Patent WO2004076622.
DD413625 - Regulation of Mammalian Cells.
JD443905 - Sequence 424929 from Patent EP1572962.
JD140895 - Sequence 121919 from Patent EP1572962.
JD222830 - Sequence 203854 from Patent EP1572962.

-  Biochemical and Signaling Pathways
  Reactome (by CSHL, EBI, and GO)

Protein Q02410 (Reactome details) participates in the following event(s):

R-HSA-5336443 LIN7, CASK and APBA1 bind
R-HSA-6794352 NRXNs binds CASK tripartite complex
R-HSA-6794353 NRXNs binds MUNC18
R-HSA-212676 Dopamine Neurotransmitter Release Cycle
R-HSA-6794361 Neurexins and neuroligins
R-HSA-112310 Neurotransmitter release cycle
R-HSA-6794362 Protein-protein interactions at synapses
R-HSA-112315 Transmission across Chemical Synapses
R-HSA-112316 Neuronal System

-  Other Names for This Gene
  Alternate Gene Symbols: APBA1_HUMAN, ENST00000265381.1, ENST00000265381.2, ENST00000265381.3, ENST00000265381.4, ENST00000265381.5, ENST00000265381.6, MINT1, NM_001163, O14914, O60570, Q02410, Q5VYR8, uc004ahh.1, uc004ahh.2, uc004ahh.3, uc004ahh.4, X11
UCSC ID: ENST00000265381.7
RefSeq Accession: NM_001163
Protein: Q02410 (aka APBA1_HUMAN or APB1_HUMAN)
CCDS: CCDS6630.1

-  Methods, Credits, and Use Restrictions
  Click here for details on how this gene model was made and data restrictions if any.