AAPT1 Antibody

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Description

Introduction to AAPT1 Antibody

AAPT1 (CHPT1) is a 406-amino-acid multi-pass membrane protein localized to the Golgi apparatus. It catalyzes the final step of phosphatidylcholine synthesis by transferring choline phosphate from CDP-choline to diacylglycerol (DAG), critical for vesicular membrane formation and maintenance . The AAPT1 antibody is a polyclonal rabbit-derived reagent used to study CHPT1 in research settings .

Antibody Characteristics

Key properties of the AAPT1 antibody include:

PropertyDetail
TargetCHPT1 (UniProt ID: Q8WUD6; Entrez Gene ID: 56994)
ReactivityHuman, Mouse, Rat
HostRabbit
ClonalityPolyclonal
ApplicationsWestern Blot (WB), Immunofluorescence (IF), Immunohistochemistry (IHC)
ImmunogenKLH-conjugated synthetic peptide (human CHPT1, AA 7-33)
PurificationProtein A

Biological Role

  • CHPT1 is highly expressed in testis, small intestine, heart, and cancerous breast cells .

  • It is upregulated in breast cancer cell lines compared to normal tissues, suggesting a role in oncogenesis .

  • Mustard gas exposure downregulates CHPT1, potentially contributing to acute respiratory distress syndrome (ARDS) .

Clinical Implications

Study FocusKey Observation
Cancer BiologyIncreased CHPT1 expression correlates with tumor progression .
Environmental ToxicityCHPT1 suppression by mustard gas links to ARDS pathogenesis .
Therapeutic TargetsCHPT1’s role in membrane synthesis highlights its potential in drug development .

Data Validation

  • Western Blot: AAPT1 antibody detects a ~37 kDa band in human, mouse, and rat lysates .

  • Immunofluorescence: Nuclear localization confirmed in HCT116 (colorectal carcinoma) and NIH/3T3 (fibroblast) cells .

  • Flow Cytometry: Specific binding observed in permeabilized NIH/3T3 cells .

Comparative Analysis

FeatureAAPT1 Antibody (ab189474)CHPT1 Antibody (PA5-23695)
Host SpeciesRabbit Rabbit
ApplicationsWB, IF, IHC WB, Flow Cytometry
Immunogen RegionAA 7-33 (human) Full-length protein (UniProt Q8WUD6)

Product Specs

Buffer
Preservative: 0.03% ProClin 300; Constituents: 50% Glycerol, 0.01M PBS, pH 7.4
Form
Liquid
Lead Time
14-16 week lead time (made-to-order)
Synonyms
AAPT1 antibody; At1g13560 antibody; F13B4.5 antibody; Choline/ethanolaminephosphotransferase 1 antibody; EC 2.7.8.1 antibody; EC 2.7.8.2 antibody; Aminoalcohol phosphotransferase 1 antibody; AtAAPT1 antibody
Target Names
AAPT1
Uniprot No.

Target Background

Function
This antibody targets AAPT1, an enzyme that catalyzes the biosynthesis of both phosphatidylcholine and phosphatidylethanolamine from CDP-choline and CDP-ethanolamine, respectively. It exhibits greater cholinephosphotransferase activity than ethanolaminephosphotransferase activity.
Database Links

KEGG: ath:AT1G13560

STRING: 3702.AT1G13560.1

UniGene: At.14784

Protein Families
CDP-alcohol phosphatidyltransferase class-I family
Subcellular Location
Membrane; Multi-pass membrane protein.

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