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Gap 26 是一种连接蛋白 (connexin) 模拟肽,由连接蛋白 connexin 43 (gap junction 阻滞剂)。
编号:115270
CAS号:197250-15-0
单字母:H2N-VCYDKSFPISHVR-OH
Gap 26 TFA 是一种连接蛋白 (connexin) 模拟肽,由连接蛋白 connexin 43 (gap junction 阻滞剂)第一个胞外环的第 63-75 残基组成,包含SHVR氨基酸基序。
Gap 26 TFA is a connexin mimetic peptide, composed of residue numbers 63-75 of the first extracellular loop of connexin 43 (gap junction blocker), containing the SHVR amino acid motif.
背景
Gap26 (Val-Cys-Tyr-Asp-Lys-Ser-Phe-Pro-Ile-Ser-His-Val-Arg)是一种连接蛋白模拟肽,对应于connexin 43的63-75 aa,是间隙连接的阻断肽。
连接蛋白或间隙连接是一个结构相关的转膜蛋白家族。间隙连接包含允许离子和小分子穿过相邻细胞的通道。钙和磷酸肌醇是可以穿过间隙连接通道的第二信使[1]。据报道,gap26可以衰减兔动脉平滑肌的节律收缩活动,IC50值为28.4 mM。Gap26也可以阻断IP3诱导的ATP和Ca2+穿过连接蛋白半通道,即六聚通道,与相邻细胞对接从而形成间隙连接的管道[2]。
参考文献:
1. Boitano, S. and H. Evans Am. J. Physiol. Lung Cell Mol. Physiol. 279, L623 (2000).
2. T. Desplantez, V. Verma, L. Leybaert, W.H. Evans, R. Weingart, Gap26, a connexin mimetic peptide, inhibits currents carried by connexin43 hemichannels and gap junction channels, Pharmacological Research, Volume 65, Issue 5, May 2012, Pages 546-552.
13-mer connexin mimetic peptide, composed of residue numbers 63-75 of the first extracellular loop of connexin 43 (gap junction blocker), containing the SHVR amino acid motif.
43Gap 26,连接蛋白模拟肽,是人工合成的连接蛋白细胞外环模拟多肽,对间隙连接通讯至关重要。其序列可抑制连接蛋白通道功能,助力细胞间通讯研究。该多肽用于探究间隙连接在细胞同步化与组织稳态中的作用。研究者将其用于研究连接蛋白相关信号通路及疾病病理生理机制。
43Gap 26, Connexin Mimetic is a synthetic peptide that mimics the extracellular loop of connexins, essential for gap junction communication. The sequence supports the inhibition of connexin channel function, aiding the study of intercellular communication. It is used in experiments that explore the role of gap junctions in cellular synchronization and tissue homeostasis. Researchers use it to investigate connexin-related signaling and disease pathophysiology.
Gap 26 Gap 26 是一种连接蛋白 (connexin) 模拟肽,由连接蛋白 connexin 43 (gap junction 阻滞剂)第一个胞外环的第 63-75 残基组成,包含SHVR氨基酸基序。
| DOI | 名称 | |
|---|---|---|
| 10.1016/s0143-4160(02)00180-x | Photoliberating inositol-1,4,5-trisphosphate triggers ATP release that is blocked by the connexin mimetic peptide gap 26 | 下载 |
| 10.1111/j.1469-7793.1997.099bi.x | Peptides homologous to extracellular loop motifs of connexin 43 reversibly abolish rhythmic contractile activity in rabbit arteries | 下载 |





