CD33 (NM_001772) Human Recombinant Protein

CAT#: TP307023

Recombinant protein of human CD33 molecule (CD33), transcript variant 1

Product Images

Coomassie blue staining of purified CD33 protein (Cat# TP307023). The protein was produced from HEK293T cells transfected with CD33 cDNA clone (Cat# RC207023) using MegaTran 2.0 (Cat# TT210002).

Specifications

Product Data

• Species: Human
• Expression Host: HEK293T
• Expression cDNA Clone or AA Sequence:
  Protein Sequence

  >RC207023 protein sequence
  Red=Cloning site Green=Tags(s)
  
  MPLLLLLPLLWAGALAMDPNFWLQVQESVTVQEGLCVLVPCTFFHPIPYYDKNSPVHGYWFREGAIISGD
  SPVATNKLDQEVQEETQGRFRLLGDPSRNNCSLSIVDARRRDNGSYFFRMERGSTKYSYKSPQLSVHVTD
  LTHRPKILIPGTLEPGHSKNLTCSVSWACEQGTPPIFSWLSAAPTSLGPRTTHSSVLIITPRPQDHGTNL
  TCQVKFAGAGVTTERTIQLNVTYVPQNPTTGIFPGDGSGKQETRAGVVHGAIGGAGVTALLALCLCLIFF
  IVKTHRRKAARTAVGRNDTHPTTGSASPKHQKKSKLHGPTETSSCSGAAPTVEMDEELHYASLNFHGMNP
  SKDTSTEYSEVRTQ
  
  TRTRPLEQKLISEEDLAANDILDYKDDDDKV
• Tag: C-Myc/DDK
• Predicted MW: 38 kDa
• Concentration: >50 ug/mL as determined by microplate BCA method
• Purity: > 80% as determined by SDS-PAGE and Coomassie blue staining
• Buffer: 25 mM Tris.HCl, pH 7.3, 100 mM glycine, 10% glycerol
• Bioactivity: Association in cell culture (PMID: 27757305)
• Preparation: Recombinant protein was captured through anti-DDK affinity column followed by conventional chromatography steps.
• Note: For culture applications, please filter before use. Note that you may experience some loss of protein during the filtration process.
• Storage: Store at -80°C.
• Stability: Stable for 12 months from the date of receipt of the product under proper storage and handling conditions. Avoid repeated freeze-thaw cycles.

Reference Data

• RefSeq: NP_001763
• Locus ID: 945
• UniProt ID: P20138, Q546G0
• Cytogenetics: 19q13.41
• Refseq Size: 1466
• Refseq ORF: 1092
• Synonyms: p67; SIGLEC-3; SIGLEC3
• Summary: Sialic-acid-binding immunoglobulin-like lectin (Siglec) that plays a role in mediating cell-cell interactions and in maintaining immune cells in a resting state (PubMed:10611343, PubMed:15597323, PubMed:11320212). Preferentially recognizes and binds alpha-2,3- and more avidly alpha-2,6-linked sialic acid-bearing glycans (PubMed:7718872). Upon engagement of ligands such as C1q or syalylated glycoproteins, two immunoreceptor tyrosine-based inhibitory motifs (ITIMs) located in CD33 cytoplasmic tail are phosphorylated by Src-like kinases such as LCK (PubMed:28325905, PubMed:10887109). These phosphorylations provide docking sites for the recruitment and activation of protein-tyrosine phosphatases PTPN6/SHP-1 and PTPN11/SHP-2 (PubMed:10556798, PubMed:10206955, PubMed:10887109). In turn, these phosphatases regulate downstream pathways through dephosphorylation of signaling molecules (PubMed:10206955, PubMed:10887109). One of the repressive effect of CD33 on monocyte activation requires phosphoinositide 3-kinase/PI3K (PubMed:15597323).[UniProtKB/Swiss-Prot Function]
• Protein Families: Druggable Genome, Transmembrane
• Protein Pathways: Hematopoietic cell lineage