CRB3 Polyclonal antibody

CRB3 Polyclonal Antibody for IHC, ELISA

Host / Isotype

Rabbit / IgG







Cat no : 12315-1-AP


CRB3, crumbs homolog 3 (Drosophila), Crumbs protein homolog 3

Tested Applications

Positive IHC detected inhuman pancreas tissue, human skeletal muscle tissue
Note: suggested antigen retrieval with TE buffer pH 9.0; (*) Alternatively, antigen retrieval may be performed with citrate buffer pH 6.0

Recommended dilution

Immunohistochemistry (IHC)IHC : 1:50-1:500
It is recommended that this reagent should be titrated in each testing system to obtain optimal results.
Sample-dependent, Check data in validation data gallery.

Product Information

12315-1-AP targets CRB3 in IHC, ELISA applications and shows reactivity with human samples.

Tested Reactivity human
Host / Isotype Rabbit / IgG
Class Polyclonal
Type Antibody
Immunogen CRB3 fusion protein Ag2968
Full Name crumbs homolog 3 (Drosophila)
Calculated Molecular Weight 123 aa, 13 kDa
GenBank Accession NumberBC018409
Gene Symbol CRB3
Gene ID (NCBI) 92359
Conjugate Unconjugated
Form Liquid
Purification MethodAntigen 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. 20ul sizes contain 0.1% BSA.

Background Information

Crumbs is an apical transmembrane protein crucial for epithelial morphogenesis in Drosophila melanogaster embryos. Three isoforms of mammalian Crumbs have been identified, and two have been characterized. Crumbs1 (CRB1) is expressed primarily in the central nervous system, whereas Crumbs3 (CRB3) is mainly expressed in epithelial tissues and skeletal muscles. CRB3 is an N-glycosylated, small transmembrane protein. CRB3 has a conserved cytoplasmic domain containing the two motives GTY and ERLI found in Crumbs, but exhibits a very short extracellular domain without the EGF- and laminin A-like G repeats present in the other Crumbs. Through its cytoplasmic domain and its interactors (e.g., Pals1 and Par6), CRB3 plays a role in apical membrane morphogenesis and tight junction regulation. (PMID: 14718572; 12527193; 15976445)


Product Specific Protocols
IHC protocol for CRB3 antibody 12315-1-APDownload protocol
Standard Protocols
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