Product Details

Purity

Greater than 90% as determined by SDS-PAGE.

Target Names

CD300LF

Uniprot No.

Q8TDQ1

Research Area

Immunology

Alternative Names

CD300 antigen like family member; CD300 antigen-like family member F; CD300 molecule like family member f; CD300f; CD300LF; CLM; CLM-1; CLM1; CLM1_HUMAN; CMRF35-like molecule 1; IGSF; IgSF13; Immune receptor expressed on myeloid cells 1; immune receptor expressed on myeloid cells; immunoglobin superfamily member; Immunoglobulin superfamily member 13; Immunoglobulin superfamily member; Inhibitory receptor IREM1; IREM; IREM-1; IREM1; Nepmucin; NK inhibitory receptor; NKIR; TREM; triggering receptors expressed on myeloid cells; UNQ3105/PRO10111

Species

Homo sapiens (Human)

Source

E.coli

Expression Region

20-156aa

Target Protein Sequence

TQITGPTTVNGLERGSLTVQCVYRSGWETYLKWWCRGAIWRDCKILVKTSGSEQEVKRDRVSIKDNQKNRTFTVTMEDLMKTDADTYWCGIEKTGNDLGVTVQVTIDPAPVTQEETSSSPTLTGHHLDNRHKLLKLS
Note: The complete sequence may include tag sequence, target protein sequence, linker sequence and extra sequence that is translated with the protein sequence for the purpose(s) of secretion, stability, solubility, etc.
If the exact amino acid sequence of this recombinant protein is critical to your application, please explicitly request the full and complete sequence of this protein before ordering.

Mol. Weight

19.5kDa

Protein Length

Extracellular Domain

Tag Info

N-terminal 6xHis-tagged

Form

Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.

Buffer

If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.
Note: If you have any special requirement for the glycerol content, please remark when you place the order.
If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose.

Reconstitution

We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.

Troubleshooting and FAQs

Protein FAQs

Storage Condition

Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.

Shelf Life

The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.

Lead Time

3-7 business days

Notes

Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.

Datasheet & COA

Please contact us to get it.

Description

The first step in producing the recombinant Human CD300LF protein is to construct a plasmid that encodes the Human CD300LF protein (20-156aa). The next is to transform this plasmid into e.coli cells, select positive e.coli cells, from which positive cells can be screened and cultured to express the protein. A N-terminal 6xHis tag is fused to the protein. The recombinant Human CD300LF protein is purified through affinity purification from the cell lysate. Its purity is greater than 90%, determined by the SDS-PAGE analysis.

Target Background

Function

Acts as an inhibitory receptor for myeloid cells and mast cells. Positively regulates the phagocytosis of apoptotic cells (efferocytosis) via phosphatidylserine (PS) recognition; recognizes and binds PS as a ligand which is expressed on the surface of apoptotic cells. Plays an important role in the maintenance of immune homeostasis, by promoting macrophage-mediated efferocytosis and by inhibiting dendritic cell-mediated efferocytosis. Negatively regulates Fc epsilon receptor-dependent mast cell activation and allergic responses via binding to ceramide and sphingomyelin which act as ligands. May act as a coreceptor for interleukin 4 (IL-4). Associates with and regulates IL-4 receptor alpha-mediated responses by augmenting IL-4- and IL-13-induced signaling. Negatively regulates the Toll-like receptor (TLR) signaling mediated by MYD88 and TRIF through activation of PTPN6/SHP-1 and PTPN11/SHP-2. Inhibits osteoclast formation. Induces macrophage cell death upon engagement.

Gene References into Functions

this study demonstrates the role of CD300f in governing innate immune eosinophil activities in pediatric Crohn's disease patients and in active ulcerative colitis patients PMID: 27118491
findings suggest that two rare heterozygous truncating variations (RPS24 Q191X and CD300LF P261fsX266) are risk candidates for autism spectrum disorder. PMID: 25601189
The data suggest that the neuroprotective role of CD300f would be the result of a complex network of cell interactions. PMID: 21951326
peptides containing ITIM-like sequences of IREM-1 (CD300F) differentially regulate MyD88 and TRIF-mediated TLR signalling PMID: 22288587
CD300f blocked the activation of cells induced by all TLR ligands PMID: 22043923
Data indicate that CD300F is an active regulator of TLR-mediated macrophage activation through association with SHP-1 involving MyD88 and/or TRIF. PMID: 21536801
Findings indicate that IREM-1 exerted its inhibitory effect on BAFF-medicated signalling through ITIM-mediated regulation of ERK activities in THP-1 cells. PMID: 20646006
IgSF13 was identified from dendritic cells; preferentially expressed in myelo-monocytic cells, including monocytes, monocyte-derived DC and monocyte-related cell lines; may be involved in the negative regulation of specific leukocyte population [IgSF13] PMID: 15184070
a novel inhibitory receptor of the Ig superfamily in myeloid cells. (IREM-1 = immune receptor expressed on myeloid cells-1) PMID: 15549731
reveal a putative functional duality of the IREM-1 myeloid cell receptor PMID: 17202342

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Subcellular Location

Cell membrane; Single-pass type I membrane protein.

Protein Families

CD300 family

Tissue Specificity

Highly expressed in spleen, peripheral blood leukocyte and monocyte, and lung. Weakly expressed in thymus, heart, brain, placenta, liver, skeletal muscle, kidney, pancreas, prostate, testis, ovary, small intestine or colon. Expressed selectively in monocy

Database Links

HGNC: 29883

OMIM: 609807

KEGG: hsa:146722

STRING: 9606.ENSP00000327075

UniGene: Hs.567706

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Code	CSB-EP819470HU
Abbreviation	Recombinant Human CD300LF protein, partial
MSDS	MSDS Datasheet
Size	$224
	Order now
Image	(Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
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Recombinant Human CMRF35-like molecule 1 (CD300LF), partial

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