• Featured Product
  • KD/KO Validated

IBA1 Polyclonal antibody

IBA1 Polyclonal Antibody for FC, IF, IHC, WB, ELISA

Host / Isotype

Rabbit / IgG


human, mouse, rat and More (3)





Cat no : 10904-1-AP


AIF 1, AIF1, G1, IBA1, IRT 1, Protein G1

Tested Applications

Positive WB detected inTHP-1 cells
Positive IHC detected inrat brain tissue, human tonsillitis tissue, mouse brain tissue, human liver tissue, human brain tissue
Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0
Positive IF detected inrat brain tissue
Positive FC detected inTHP-1 cells
Planning an IF experiment? We recommend our CoraLite®488 and CoraLite®594 conjugated versions of this antibody.

Recommended dilution

Western Blot (WB)WB : 1:500-1:2000
Immunohistochemistry (IHC)IHC : 1:400-1:1600
Immunofluorescence (IF)IF : 1:50-1:500
Sample-dependent, check data in validation data gallery

Product Information

10904-1-AP targets IBA1 in WB, IHC, IF, FC, ELISA applications and shows reactivity with human, mouse, rat samples.

Tested Reactivity human, mouse, rat
Cited Reactivityhuman, mouse, rat, hamster, pig, zebrafish
Host / Isotype Rabbit / IgG
Class Polyclonal
Type Antibody
Immunogen IBA1 fusion protein Ag1363
Full Name allograft inflammatory factor 1
Calculated molecular weight 17 kDa
GenBank accession numberBC009474
Gene symbol AIF1
Gene ID (NCBI) 199
Conjugate Unconjugated
Form Liquid
Purification Method Antigen affinity purification
Storage Buffer PBS with 0.02% sodium azide and 50% glycerol pH 7.3.
Storage ConditionsStore at -20°C. Stable for one year after shipment. Aliquoting is unnecessary for -20oC storage.

Background Information

What is the molecular weight of IBA1?

The molecular weight of IBA1 is 16.7 kD.

 What is IBA1?

Ionized calcium-binding adaptor molecule 1 (IBA1), also known as Allograft inflammatory factor-1 (AIF-1), is an inflammation-responsive scaffold protein expressed and secreted from macrophages. Microglia response factor (MRF-1) and daintain are also similar, and likely identical, proteins (PMIDs: 29749461, 9630473, 23792284).

 What is the function of IBA1?

IBA1 is necessary for macrophage survival, and it is also a key molecule in proinflammatory activity (PMID: 29749461).

 Where is IBA1 localized?

IBA1 is a cytoplasmic protein, often expressed in immunocytes, macrophages, and microglia. It can be used as a marker for normal (not 'dark') microglia in brain tissue, as IBA1 is expressed by all microglial cell subpopulations (PMIDs: 29749461, 11943136, 26847266, 9630473).

 Is IBA1 upregulated in active immunophages?

Yes; its expression is associated with inflammatory activity (PMID: 29749461).

 How do IBA1-positive microglia differ from microglia that express less or no IBA1?

'Dark' microglia is a recently described phenotype associated with Alzheimer's disease pathology and chronic stress; these dark microglia express decreased IBA1 (often punctiform), and show distinct ultrastructural differences from 'normal' microglia as well as condensed and electron-dense cytoplasm and nucleoplasm. Normal microglia generally display strong, diffuse expression of IBA1. IBA1-positive microglial processes in normal conditions also have a strong tendency to exclusively contact synaptic elements, such as axon terminals, dendritic spines, and synaptic clefts (PMIDs: 29992181, 26847266).

 How is IBA1 related to Alzheimer's disease and pain?

Exacerbated immunoactivity of IBA1, particularly in proximity to amyloid plaques, is prominently featured in AD pathology. IBA1, along with other microglial markers, are also associated with pain, and robust microglial reactions often follow spinal cord injury (PMIDs: 29992181, 23792284).


Product Specific Protocols
WB protocol for IBA1 antibody 10904-1-APDownload protocol
IHC protocol for IBA1 antibody 10904-1-APDownload protocol
IF protocol for IBA1 antibody 10904-1-APDownload protocol
Standard Protocols
Click here to view our Standard Protocols



Toxicol Sci

Targeting Smox is neuroprotective and ameliorates brain inflammation in cerebral ischemia/reperfusion rats.

Authors - Jiawei Fan

Front Cell Neurosci

Targeting MAPK Pathways by Naringenin Modulates Microglia M1/M2 Polarization in Lipopolysaccharide-Stimulated Cultures.

Authors - Bei Zhang

Nat Commun

The SIAH2-NRF1 axis spatially regulates tumor microenvironment remodeling for tumor progression.

Authors - Biao Ma

Int J Mol Sci

PMID: 30845718

Authors - Syed Zahid Ali Shah

ACS Nano

Redox Trimetallic Nanozyme with Neutral Environment Preference for Brain Injury.

Authors - Xiaoyu Mu

Cell Death Dis

Microglia as modulators of exosomal alpha-synuclein transmission.

Authors - Yun Xia