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MirTarBase V 4.5   http://mirtarbase.mbc.nctu.edu.tw/php/download.php?ver=4.5&opt=show For human, It has  targets for 596 mature microRNA from mirBase. Mirbase 20 Number of precursor micorRNA:  1871 ID , 1870 Name (mir-511 has two id) Number of mature micorRNA:   2794 ID , 2576 Name. ID  Each precursor and mature microRNA has unique ID. If you work on ID that would be fine.  Name  -- > ID P recursor microRNA For each primary ID  there is 1 primary name, except one case hsa-mir-511. This name is common for two primary transcript chr10    .    miRNA_primary_transcript    17887107    17887193    .    +    .    ID=MI0003127;Alias=MI0003127;Name=hsa-mir-511 chr10    .    miRNA_primary_transcript    18134036    18134122    ...

1. Repository for annotation of  GO ID against genes download file (gene_association.goa_human.gz) from link: http://geneontology.org/gene-associations/gene_association.goa_human.gz http://geneontology.org/page/download-annotations 2. How to extract GO names/description from database from GO ID Option 1 : use the file   http://purl.obolibrary.org/obo/go.obo from   http://geneontology.org/page/download-ontology Option 2 :  use R package # load the GO library  library(GO.db)   write.table( goterms, sep="\t", file="goterms.txt") 3. How to do get all GO terms for a gene Option 1: Use the annotation database [BEST option you can dowload updated file and parse it based on UNIPROT ACC No ] http://geneontology.org/gene-associations/gene_association.goa_human.gz Option 2 : R package Ontologyzer [It can be used to show annotation at child and parent level also , scrool down below to check command] http://compbio.chari...