别名 BCD541、Component of gems 1、Gemin-1 + [14] |
简介 The SMN complex catalyzes the assembly of small nuclear ribonucleoproteins (snRNPs), the building blocks of the spliceosome, and thereby plays an important role in the splicing of cellular pre-mRNAs (PubMed:9845364, PubMed:18984161). Most spliceosomal snRNPs contain a common set of Sm proteins SNRPB, SNRPD1, SNRPD2, SNRPD3, SNRPE, SNRPF and SNRPG that assemble in a heptameric protein ring on the Sm site of the small nuclear RNA to form the core snRNP (Sm core) (PubMed:18984161). In the cytosol, the Sm proteins SNRPD1, SNRPD2, SNRPE, SNRPF and SNRPG are trapped in an inactive 6S pICln-Sm complex by the chaperone CLNS1A that controls the assembly of the core snRNP (PubMed:18984161). To assemble core snRNPs, the SMN complex accepts the trapped 5Sm proteins from CLNS1A forming an intermediate (PubMed:18984161). Within the SMN complex, SMN1 acts as a structural backbone and together with GEMIN2 it gathers the Sm complex subunits (PubMed:21816274, PubMed:22101937, PubMed:17178713). Binding of snRNA inside 5Sm ultimately triggers eviction of the SMN complex, thereby allowing binding of SNRPD3 and SNRPB to complete assembly of the core snRNP (PubMed:31799625). Ensures the correct splicing of U12 intron-containing genes that may be important for normal motor and proprioceptive neurons development (PubMed:23063131). Also required for resolving RNA-DNA hybrids created by RNA polymerase II, that form R-loop in transcription terminal regions, an important step in proper transcription termination (PubMed:26700805). May also play a role in the metabolism of small nucleolar ribonucleoprotein (snoRNPs). |
靶点 |
作用机制 SMN1基因刺激剂 |
非在研适应症- |
最高研发阶段批准上市 |
首次获批国家/地区 美国 |
首次获批日期2019-05-24 |
作用机制 SMN1基因调节剂 [+1] |
非在研适应症- |
最高研发阶段临床2期 |
首次获批国家/地区- |
首次获批日期1800-01-20 |
靶点 |
作用机制 SMN1基因刺激剂 |
在研机构 北京锦篮基因科技有限公司初创企业 |
原研机构 北京锦篮基因科技有限公司初创企业 |
在研适应症 |
非在研适应症- |
最高研发阶段临床1/2期 |
首次获批国家/地区- |
首次获批日期1800-01-20 |
开始日期2024-10-20 |
申办/合作机构 |
开始日期2024-05-30 |
申办/合作机构 诺华中国 [+2] |
开始日期2024-05-10 |
申办/合作机构 北京锦篮基因科技有限公司初创企业 |