PR:P08047-1 transcription factor Sp1 isoform 1 (human) hSP1/iso:1|transcription factor Sp1 isoform Sp1a (human) located_in GO:0005634 nucleus PMID:2170018 IDA NCBITaxon:9606 UniProtKB:P08047-1 20080301 PRO:CNA