SP1
Sp1 transcription factor
Pathway candidate — not linked to PFS or PSSD by any record here
Gene summary
A protein-coding gene on chromosome 12 (cell signaling and transcription factors). The protein encoded by this gene is a zinc finger transcription factor that binds to GC-rich motifs of many promoters. The protein is involved in many cellular processes, including cell differentiation, cell growth, apoptosis, immune responses, response to DNA damage, and chromatin remodeling.
Source: NCBI Gene, accessed 2026-10-07.
Protein reference (UniProt)
- Protein
Transcription factor Sp1
- Function (excerpt)
Transcription factor that can activate or repress transcription in response to physiological and pathological stimuli. Binds with high affinity to GC-rich motifs and regulates the expression of a large number of genes involved in a variety of processes such as cell growth, apoptosis, differentiation and immune responses. Highly regulated by post-translational modifications (phosphorylations, sumoylation, proteolytic cleavage, glycosylation and acetylation). Also binds the PDGFR-alpha G-box promoter. May have a role in modulating the cellular response to DNA damage. Implicated in chromatin remodeling. Plays an essential role in the regulation of FE65 gene expression. In complex with ATF7IP, maintains telomerase activity in cancer cells by inducing TERT and TERC gene expression. Isoform 3 is a stronger activator of transcription than isoform 1. Positively regulates the transcription of the core clock component BMAL1. Plays a role in the recruitment of SMARCA4/BRG1 on the c-FOS promoter.
- Subcellular location
Nucleus; Cytoplasm.
- Tissue specificity
Up-regulated in adenocarcinomas of the stomach (at protein level). Isoform 3 is ubiquitously expressed at low levels.
Source: UniProtKB/Swiss-Prot P08047, release 2026_03, licensed CC BY 4.0. This is the protein’s normal biology, not evidence about post-drug syndromes; associated conditions are inherited disorders of the gene, not PFS, PSSD or PRSD.
Why its pathway is in the library
General signaling/transcription machinery; no direct post-drug-syndrome link established for most members — included for completeness of the panel.
Written for the whole signaling & transcription family, not for SP1 specifically.
Mentioned in 0 corpus records
No corpus record names SP1 directly yet. It is in the library because it sits in a pathway the corpus tracks (Signaling & transcription).
Also in cell signaling and transcription factors
All 52 genes- CLOCK
clock circadian regulator
chr 4· Signaling & transcription· Pathway candidate - CREB1
cAMP responsive element binding protein 1
chr 2· Signaling & transcription· Pathway candidate - FOXA1
forkhead box A1
chr 14· Nuclear receptors· Pathway candidate - FOXA2
forkhead box A2
chr 20· Signaling & transcription· Pathway candidate - FOXO1
forkhead box O1
chr 13· Signaling & transcription· Pathway candidate - FOXO3
forkhead box O3
chr 6· Signaling & transcription· Pathway candidate - FOXO4
forkhead box O4
chr X· Signaling & transcription· Pathway candidate - GATA2
GATA binding protein 2
chr 3· Signaling & transcription· Pathway candidate
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