title: GSM5949461: Sarcoidosis number 1; Homo sapiens; ncRNA-Seq
library_construction_protocol: Total RNAs were extracted according to the manufacturer's instruction (Invitrogen, CA,USA). The purity and concentration of total RNA samples were determined with NanoDrop ND-1000. Then we did the following treatments to remove some RNA modifications which might interfere with small RNA-sequencing library construction: 3'-aminoacyl (charged) deacylation to 3'-OH (hydroxyl group) for 3' adaptor ligation, 3'-cP (2',3'-cyclic phosphate) removal to 3'-OH for 3' adaptor ligation, 5'-OH phosphorylation to 5'-P for 5'-adaptor ligation, N1-methyladenosine and N3-methylcytidine demethylation for efficient reverse transcription. All procedures were performed using rtStar tRF&tiRNA Pretreatment Kit (Arraystar) protocols.