Rabbit polyclonal C1QBP antibody (A1883)


Reactivity: Human,Mouse,Rat
Applications: WB,IHC,IF
Conjugation: Unconjugated
Supplier: ABclonal Inc.

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Rabbit polyclonal C1QBP antibody (A1883)

Supplier: ABclonal Inc.

Recommended applications: WB,IHC,IF

Recommended dilution:

WB 1:500 – 1:2000 IHC 1:50 – 1:200 IF 1:50 – 1:200

Recommended protocols: check protocols

Image descriptions:

Click or hover above images to see image description for Rabbit polyclonal C1QBP antibody.

Alternative names:

Check alternative names for the antibody


p32 antibody, HABP1 antibody, gC1qR antibody, GC1QBP antibody, SF2p32 antibody, gC1Q-R antibody
ASF/SF2 associated protein p32 antibody|C1q globular domain binding protein antibody|C1qBP antibody|C1QBP_HUMAN antibody|Complement component 1 q subcomponent binding protein antibody|Complement component 1 Q subcomponent binding protein mitochondrial antibody|Complement component 1 Q subcomponent-binding protein, mitochondrial antibody|GC1Q R antibody|GC1q R protein antibody|GC1q-R protein antibody|GC1QBP antibody|GC1QR antibody|globular domain of, C1q, receptor for antibody|Glycoprotein gC1qBP antibody|HABP 1 antibody|HABP1 antibody|Hyaluronan binding protein 1 antibody|Hyaluronan-binding protein 1 antibody|Mitochondrial matrix protein p32 antibody|p32 antibody|p32 splicing factor antibody|p33 antibody|Pre mrna splicing factor SF2 P32 subunit precursor antibody|SF2p32 antibody|Splicing factor SF2 associated protein antibody|Anti-GC1q R antibody [60.11] (ab24733)

SCBT cat No: sc-70471|sc-136433|sc-23884|sc-23885|sc-271201|sc-10259|sc-10258|sc-48795|sc-271200|sc-10257|sc-23278|


Rabbit polyclonal C1QBP antibody

Catalogue No.



Human, Mouse, Rat


Recombinant protein of human C1QBP





Recommended dilution

WB 1:500 – 1:2000
IHC 1:50 – 1:200
IF 1:50 – 1:200







Molecular weight

Predicted: 31kDa/Observed: Refer to Figures


C1QBP antibody was tube-contained.
Buffer: PBS with 0.02% sodium azide, 50% glycerol, pH7.3.


C1QBP antibody was purified using affinity purification.


Store at -20 Celsius degree. Avoid freeze / thaw cycles.

Alternative antibody names

p32 antibody, HABP1 antibody, gC1qR antibody, GC1QBP antibody, SF2p32 antibody, gC1Q-R antibody

Database links

Human UniProt/Swiss-Prot:Q07021

Protein names

p32, HABP1, gC1qR, GC1QBP, SF2p32, gC1Q-R

Protein function

Is believed to be a multifunctional and multicompartmental protein involved in inflammation and infection processes, ribosome biogenesis, regulation of apoptosis, transcriptional regulation and pre-mRNA splicing. At the cell surface is thought to act as an endothelial receptor for plasma proteins of the complement and kallikrein-kinin cascades. Putative receptor for C1q; specifically binds to the globular “heads” of C1q thus inhibiting C1; may perform the receptor function through a complex with C1qR/CD93. In complex with cytokeratin-1/KRT1 is a high affinity receptor for kininogen-1/HMWK. Can also bind other plasma proteins, such as coagulation factor XII leading to its autoactivation. May function to bind initially fluid kininogen-1 to the cell membrane. The secreted form may enhance both extrinsic and intrinsic coagulation pathways. It is postulated that the cell surface form requires docking with transmembrane proteins for downstream signaling which might be specific for a cell-type or response. By acting as C1q receptor is involved in chemotaxis of immature dendritic cells and neutrophils and is proposed to signal through CD209/DC-SIGN on immature dendritic cells, through integrin alpha-4/beta-1 during trophoblast invasion of the decidua, and through integrin beta-1 during endothelial cell adhesion and spreading. Signaling involved in inhibition of innate immune response is implicating the PI3K-AKT/PKB pathway. In mitochondrial translation may be involved in formation of functional 55S mitoribosomes; the function seems to involve its RNA-binding activity. May be involved in the nucleolar ribosome maturation process; the function may involve the exchange of FBL for RRP1 in the association with pre-ribosome particles. Involved in regulation of RNA splicing by inhibiting the RNA-binding capacity of SRSF1 and its phosphorylation. Is required for the nuclear translocation of splicing factor U2AF1L4. Involved in regulation of CDKN2A- and HRK-mediated apoptosis. Stabilizes mitochondrial CDKN2A isoform smARF. May be involved in regulation of FOXC1 transcriptional activity and NFY/CCAAT-binding factor complex-mediated transcription. In infection processes acts as an attachment site for microbial proteins, including Listeria monocytogenes internalin B and Staphylococcus aureus protein A. May play a role in antibacterial defense as it can bind to cell surface hyaluronan and inhibit Streptococcus pneumoniae hyaluronate lyase. Involved in replication of Rubella virus. May be involved in modulation of the immune response; ligation by HCV core protein is resulting in suppresion of interleukin-12 production in monocyte-derived dendritic cells. Involved in regulation of antiviral response by inhibiting DDX58- and IFIH1-mediated signaling pathways probably involving its association with MAVS after viral infection. Involved in HIV-1 replication, presumably by contributing to splicing of viral RNA.

Protein tissue specificity

Expressed on cell surface of peripheral blood cells (at protein level); Surface expression is reported for macrophages and monocyte-derived dendritic cells.

Protein sequence and domain

Belongs to the MAM33 family.

Protein cellular localization

Mitochondrion matrix. Nucleus. Cell membrane; Peripheral membrane protein; Extracellular side. Secreted. Cytoplasm. Nucleus, nucleolus. Note: Seems to be predominantly localized to mitochondria. Secreted by activated lymphocytes.


C1QBP, also referred to as p32, p33, gC1q receptor (gC1qR), and hyaluronic acid binding protein 1 (HABP1), was originally identified via its binding interactions with Splicing Factor (SF-2) (1). Multiple, diverse binding partners of C1QBP were subsequently identified, including the globular heads of complement component C1q, hyaluronic acid, selected protein kinases (2), the tumor suppressor ARF (3-5), and multiple antigens of bacterial and viral origin (6). Research studies have shown that C1QBP is overexpressed in a number of cancer cell types (7), and has been implicated in the Warburg effect, whereby cancer cells shift their metabolism from oxidative phosphorylation to glycolysis (7). C1QBP has also been shown to inhibit the Mitochondrial Permeability Transition (MPT) pore, possibly serving a protective function against damage from oxidative stress (8).

Research area

All research areas>Lymphocyte Signaling>C1QBP
(View all antibody categories related to Lymphocyte Signaling)


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Product type

Primary antibody


ABclonal Inc.


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