S1577

Stromal Cell-Derived Factor 1α/pre-B Cell Growth Stimulating Factor human

recombinant, expressed in E. coli, lyophilized powder, ≥97% (SDS-PAGE), suitable for cell culture

• 동의어(들): SDF-1, SDF1, SDF-1α
• UNSPSC 코드: 12352202
• NACRES: NA.32

속성

• 생물학적 소스: human
• Quality Level: 200
• 재조합: expressed in E. coli
• 분석: ≥97% (SDS-PAGE)
• 양식: lyophilized powder
• 효능: ≤50 ng/mL EC₅₀
• 포장: pkg of 10 μg
• 저장 조건: avoid repeated freeze/thaw cycles
• 기술: cell culture | mammalian: suitable
• 불순물: ≤1 EU/μg protein Endotoxin
• 색상: white
• UniProt 수납 번호: P48061
• 배송 상태: dry ice
• 저장 온도: −20°C
• 유전자 정보: human ... CXCL12((6387)

설명

일반 설명

Stromal Cell-Derived Factor 1α (SDF-1α) or pre-B Cell Growth Stimulation Factor (PBSF) is an 8 kDa chemokine peptide. SDF-1 was identified using signal sequence trap cloning. With this method, cDNAs have been cloned using mouse and human stromal cell lines. This cytokine is widely accepted as a CXC chemokine of the intercrine-macrophage inflammatory protein superfamily. The gene has been mapped to chromosome 10q and is encoded by 4 exons. Expression of the human SDF1 gene is abundant in the pancreas, spleen, ovary, and small intestine. The presence of a GC-rich sequence and the lack of a TATA box in the 5∅-flanking region of the gene are consistent with ubiquitous expression.

생화학적/생리학적 작용

SDF-1α functions as a pre-B cell growth factor in the presence of IL-7 (interleukin-7) and a potent chemoattractant for T-lymphocytes and monocytes. It has also been found to be a ligand for CXCR4 (chemokine receptor type 4) or the orphan receptor LESTR/fusin (putative chemokine receptor). By signaling through the receptor, SDF1 may serve as an inhibitor of HIV-1 (human immunodeficiency virus), which utilizes the LESTR/fusin receptor as a point of entry. The SDF-1/CXCR4 signalling pathway is associated with cancer cell proliferation, migration and survival. Overexpression of SDF1 is observed in breast carcinoma, ovarian carcinoma and papillary thyroid carcinoma. It enhances angiogenesis in the ischemic tissue. SDF1 offers CXCR4 mediated neuroprotection during post ischemic stroke.

물리적 형태

This product is lyophilized from a 0.2 μm-filtered solution containing 10 μg SDF-1α and 0.5 mg bovine serum albumin in PBS.

재구성

Reconstitute the contents of the vial using sterile buffer or medium containing a minimum of 0.1% BSA or HSA to a stock concentration of ≥10 μg/ml. Additional filtration of the stock solution is not recommended as this may result in loss of product due to adsorption onto the filter membrane.

안전성 정보

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable