Specification
| Description | Recombinant protein from the full-length sequence of Homo sapiens calcium release activated channel regulator 2A (CRACR2A), transcript variant 3 (NM_032680). |
| Organism | Homo sapiens (Human) |
| Expression Host | Human Cells |
| Tag Info | His or DYKDDDDK. Please contact us if you need further information or require specific designed tag. |
| Purity | Greater than 90% by SDS-PAGE gel |
| Uniprot ID | Q9BSW2 |
| Entry Name | EFC4B_HUMAN |
| Gene Names | CRACR2A EFCAB4B RAB46 |
| Alternative Gene Names | EFCAB4B RAB46 |
| Alternative Protein Names | EF-hand calcium-binding domain-containing protein 4B (Calcium release-activated calcium channel regulator 2A) (CRAC channel regulator 2A) (Calcium release-activated channel regulator 2A) (Ras-related protein Rab-46) |
| Application | Antigens, Western, ELISA and other in vitro binding or in vivo functional assays, and protein-protein interaction studies; For research & development use only! |
| Buffer | Purified protein formulated in a sterile solution of PBS buffer, pH7.2, without any preservatives |
| Endotoxin | Endotoxin level is < 0.1 ng/µg of protein (<1EU /µg) |
| Length | 731 |
| Molecular Weight(Da) | 83193 |
| Protein Sequence | (The sequence of expressed protein may have some variation from the sequence shown below. Please contact us for the exact sequence.) MAAPDGRVVSRPQRLGQGSGQGPKGSGACLHPLDSLEQKETQEQTSGQLVMLRKAQEFFQTCDAEGKGFIARKDMQRLHKELPLSLEELEDVFDALDADGNGYLTPQEFTTGFSHFFFSQNNPSQEDAGEQVAQRHEEKVYLSRGDEDLGDMGEDEEAQFRMLMDRLGAQKVLEDESDVKQLWLQLKKEEPHLLSNFEDFLTRIISQLQEAHEEKNELECALKRKIAAYDEEIQHLYEEMEQQIKSEKEQFLLKDTERFQARSQELEQKLLCKEQELEQLTQKQKRLEGQCTALHHDKHETKAENTKLKLTNQELARELERTSWELQDAQQQLESLQQEACKLHQEKEMEVYRVTESLQREKAGLLKQLDFLRERNKHLRDERDICFQKNKAAKANTAASRASWKKRSGSVIGKYVDSRGILRSQSEEEEEVFGIPRRSSLGLSGYPLTEEEPGTGEPGPGGPYPRPLRRIISVEEDPLPQLLDGGFEQPLSKCSEEEEVSDQGVQGQIPEAPPLKLTPTSPRGQPVGKEALCKEESSPSAPDRLFKIVFVGNSAVGKTSFLRRFCEDRFSPGMAATVGIDYRVKTLNVDNSQVALQLWDTAGQERYRCITQQFFRKADGVIVMYDLTDKQSFLSVRRWLSSVEEAVGDRVPVLLLGNKLDNEKEREVPRGLGEQLATENNLIFYECSAYSGHNTKESLLHLARFLKEQEDTVREDTIQVGHPAKKKSCCG |
Background
| Function | FUNCTION: [Isoform 1]: Ca(2+)-binding protein that plays a key role in store-operated Ca(2+) entry (SOCE) in T-cells by regulating CRAC channel activation. Acts as a cytoplasmic calcium-sensor that facilitates the clustering of ORAI1 and STIM1 at the junctional regions between the plasma membrane and the endoplasmic reticulum upon low Ca(2+) concentration. It thereby regulates CRAC channel activation, including translocation and clustering of ORAI1 and STIM1. Upon increase of cytoplasmic Ca(2+) resulting from opening of CRAC channels, dissociates from ORAI1 and STIM1, thereby destabilizing the ORAI1-STIM1 complex. {ECO:0000269|PubMed:20418871, ECO:0000269|PubMed:27016526}.; FUNCTION: [Isoform 2]: Rab GTPase that mediates the trafficking of Weibel-Palade bodies (WPBs) to microtubule organizing center (MTOC) in endothelial cells in response to acute inflammatory stimuli (PubMed:31092558). During histamine (but not thrombin) stimulation of endothelial cells, the dynein-bound form induces retrograde transport of a subset of WPBs along microtubules to the MTOC in a Ca(2+)-independent manner and its GTPase activity is essential for this function (PubMed:31092558). Ca(2+)-regulated dynein adapter protein that activates dynein-mediated transport and dynein-dynactin motility on microtubules and regulates endosomal trafficking of CD47 (PubMed:30814157). Acts as an intracellular signaling module bridging two important T-cell receptor (TCR) signaling pathways, Ca(2+)-NFAT and JNK, to affect T-cell activation (PubMed:27016526). In resting T-cells, is predominantly localized near TGN network in a GTP-bound form, upon TCR stimulation, localizes at the immunological synapse via interaction with VAV1 to activate downstream Ca(2+)-NFAT and JNK signaling pathways (PubMed:27016526). Plays a role in T-helper 1 (Th1) cell differentiation and T-helper 17 (Th17) cell effector function (PubMed:29987160). Plays a role in store-operated Ca(2+) entry (SOCE) in T-cells by regulating CRAC channel activation (PubMed:27016526). {ECO:0000269|PubMed:27016526, ECO:0000269|PubMed:29987160, ECO:0000269|PubMed:30814157, ECO:0000269|PubMed:31092558}. |
| Pathway | |
| Protein Families | EFCAB4 family |
| Tissue Specificity | [Isoform 1]: Expressed in the Jurkat T-cell line. {ECO:0000269|PubMed:27016526}.; TISSUE SPECIFICITY: [Isoform 2]: Expressed in endothelial cells (PubMed:25475730). Expressed in Weibel-Palade bodies (which are P-selectin/SELP negative) in endothelial cells (PubMed:31092558). Expressed in the Jurkat T-cell line (PubMed:30814157, PubMed:27016526). {ECO:0000269|PubMed:25475730, ECO:0000269|PubMed:27016526, ECO:0000269|PubMed:30814157, ECO:0000269|PubMed:31092558}. |
QC Data
| Note | Please contact us for QC Data |
| Product Image (Reference Only) |  |