SARS-CoV-2 Spike S1 Protein (T19R & T95I & G142D & Y145H & E156G & 157-158 deletion & A222V & L452R & T478K & D614G & P681R, His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 76.29 kDa and the accession number is YP_009724390.1.

SARS-CoV-2 Spike S1 Protein (T19R & V70F & E156G & 157-158 deletion & A222V & K417N & L452R & T478K & D614G & P681R, His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 76.28 kDa and the accession number is A0A6G7K2L4.

SARS-CoV-2 Spike S1+S2 Protein (T19R & V70F & E156G & 157-158 deletion & A222V & K417N & L452R & T478K & D614G & P681R & D950N, His) is expressed in Baculovirus insect cells with His tag. The predicted molecular weight is 134.20 kDa and the accession number is A0A6G7K2L4.

Sorcin was originally identified in multidrug-resistant cells. It is a calcium-binding protein. Sorcin modulates excitation-contraction coupling in the heart, contributes to calcium homeostasis in the heart sarcoplasmic reticulum. Sorcin is overexpressed in the multi-drug resistant chinese hamster ovary cell line CHRC5 and a variety of multidrug-resistant tumor cell lines, but overexpression is not a sufficient or necessary condition for the acquisition of the multidrug-resistant phenotype. Sorcin/SRI Protein, Human, Recombinant is expressed in Baculovirus insect cells. The predicted molecular weight is 21.8 kDa and the accession number is P30626.

Sorcin was originally identified in multidrug-resistant cells. It is a calcium-binding protein. Sorcin modulates excitation-contraction coupling in the heart, contributes to calcium homeostasis in the heart sarcoplasmic reticulum. Sorcin is overexpressed in the multi-drug resistant chinese hamster ovary cell line CHRC5 and a variety of multidrug-resistant tumor cell lines, but overexpression is not a sufficient or necessary condition for the acquisition of the multidrug-resistant phenotype. Sorcin/SRI Protein, Human, Recombinant (His & GST) is expressed in Baculovirus insect cells with His and GST tag. The predicted molecular weight is 49.5 kDa and the accession number is P30626.

Natural killer cell receptor 2B4 (2B4/CD244)is a 66 kDa type I transmembrane glycoprotein in the SLAM subgroup of the CD2 protein family. SLAM family proteins have an extracellular domain (ECD) with two or four Ig-like domains and at least two cytoplasmic immunoreceptor tyrosine-based switch motifs (ITSMs). 2B4 interacts with CD48, while other SLAM family proteins interact in a homophilic manner. The mouse 2B4 cDNA encodes a 397 amino acid (aa) precursor that includes a 19 aa signal sequence, a 207 aa ECD with one Ig-like V-type and one C2-type Ig-like domain, a 21 aa transmembrane segment, and a 150 aa cytoplasmic domain with four ITSMs. Within the ECD, mouse 2B4 shares 46% and 68% aa sequence identity with human and rat 2B4, respectively. 2B4/CD48 signaling cooperates with other receptor systems to either promote or inhibit NK and CD8+ T cell activation. The inhibitory activities are distinct from those of MHC I restricted inhibitory NK cell receptors. Ligation of 2B4 with antibodies or CD48 constructs can directly trigger inhibitory signaling or disrupt an inhibitory interaction, leading to cellular activation. 2B4 can also induce signaling through CD48.