Protein:POU1F1 |
Protein Summary |
 Gene summary |
| Gene name: POU1F1 | ASpdb.0 ID: 5449 | Gene | Gene symbol | POU1F1 | Gene ID | 5449 |
| Gene name | POU class 1 homeobox 1 |
| Synonyms | CPHD1|GHF-1|PIT1|POU1F1a|Pit-1 |
| Cytomap | 3p11.2 |
| Type of gene | protein-coding |
| Description | pituitary-specific positive transcription factor 1POU domain, class 1, transcription factor 1growth hormone factor 1pituitary transcript factor 1 |
| Modification date | 20240305 |
| UniProtAcc | P28069 |
| Gene ontology of this gene with evidence of Inferred from Direct Assay (IDA) from Entrez |
| Partner | Gene | GO ID | GO term | PubMed ID |
| Gene | POU1F1 | GO:0000981 | DNA-binding transcription factor activity, RNA polymerase II-specific | 9685346|26612202 |
| Gene | POU1F1 | GO:0003700 | DNA-binding transcription factor activity | 9482665|11301317 |
| Gene | POU1F1 | GO:0005634 | nucleus | 26612202 |
| Gene | POU1F1 | GO:0005654 | nucleoplasm | - |
| Gene | POU1F1 | GO:0005829 | cytosol | - |
| Gene | POU1F1 | GO:0006355 | regulation of DNA-templated transcription | 11301317 |
| Gene | POU1F1 | GO:0045944 | positive regulation of transcription by RNA polymerase II | 9482665|9685346|26612202 |
| Gene | POU1F1 | GO:1990837 | sequence-specific double-stranded DNA binding | 28473536 |
AS Summary |
| Information of the canonical protein with experimentally identified structure from PDB (2023). |
| UniProt Acc | File name | PDB ID | Method | Resolution | Chain | Start | End |
| P28069-1 | P28069-1_5wc9_A.pdb | 5WC9 | X-ray | 3.15 | A | 125 | 273 |
| ASpdb's canonical and alternatively spliced isoform information. |
| accession_id | gene_name | canonical_id | alternative_id | canonical_length | alternative_length | canonical_start | canonical_end | type | originalSEQ | variationSEQ | alternative_start | alternative_end |
| P28069 | POU1F1 | P28069-1 | P28069-2 | 291 | 317 | 47 | 47 | Substitution | T | TVPSILSLIQTPKCLCTHFSVTTLGNT | 47 | 73 |
| Multiple sequence alignment of our canonical and alternatively spliced POU1F1 |
| Matched gene isoform IDs with Ensembl and RefSeq of our canonical and alternative spliced genes of POU1F1 |
| UniProt-id | ENSG | ENST | ENSP |
| P28069-1 | ENSG00000064835.12 | ENST00000350375.7 | ENSP00000263781.2 |
| P28069-2 | ENSG00000064835.12 | ENST00000344265.8 | ENSP00000342931.3 |
| UniProt-id | NM ID | NP ID |
| P28069-1 | NM_000306.3 | NP_000297.1 |
| P28069-2 | NM_001122757.2 | NP_001116229.1 |
| Amino acid sequences of our canonical and alternatively spliced POU1F1 |
| accession_id | Protein sequence |
| P28069-1 | MSCQAFTSADTFIPLNSDASATLPLIMHHSAAECLPVSNHATNVMSTATGLHYSVPSCHYGNQPSTYGVMAGSLTPCLYKFPDHTLSHGF PPIHQPLLAEDPTAADFKQELRRKSKLVEEPIDMDSPEIRELEKFANEFKVRRIKLGYTQTNVGEALAAVHGSEFSQTTICRFENLQLSF KNACKLKAILSKWLEEAEQVGALYNEKVGANERKRKRRTTISIAAKDALERHFGEQNKPSSQEIMRMAEELNLEKEVVRVWFCNRRQREK |
| P28069-2 | MSCQAFTSADTFIPLNSDASATLPLIMHHSAAECLPVSNHATNVMSTVPSILSLIQTPKCLCTHFSVTTLGNTATGLHYSVPSCHYGNQP STYGVMAGSLTPCLYKFPDHTLSHGFPPIHQPLLAEDPTAADFKQELRRKSKLVEEPIDMDSPEIRELEKFANEFKVRRIKLGYTQTNVG EALAAVHGSEFSQTTICRFENLQLSFKNACKLKAILSKWLEEAEQVGALYNEKVGANERKRKRRTTISIAAKDALERHFGEQNKPSSQEI |
Protein Functional Features |
| Main function of this protein. (from UniProt) |
| POU1F1 (go to UniProt):P28069 |
| Retention analysis result of protein across 39 protein features of UniProt such as six molecule processing features, 13 region features, four site features, six amino acid modification features, two natural variation features, five experimental info features, and 3 secondary structure features. Here, because of limited space for viewing, we only show the protein feature retention information belong to the 13 regional features. All retention annotation result can be downloaded at * Minus value of BPloci means that the break pointn is located before the CDS. |
| - Retained protein feature among the 13 regional features. |
| Accession_id | Subsection | Start | End | Funcitonal feature | Splicing information |
Gene Isoform Structures and Expression Levels for POU1F1 |
| Gene structures of our canonical and alternative spliced genes of POU1F1 * Click on the image to open the UCSC genome browser with custom track showing this image in a new window. |
| Expression levels of gene isoforms across GTEx. |
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| Expression levels of gene isoforms across TCGA. |
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Protein Structures |
| PDB and CIF files of the predicted protein structures * Here we show the 3D structure of the proteins using Mol*. AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. Model confidence is shown from the pLDDT values per residue. pLDDT corresponds to the model’s prediction of its score on the local Distance Difference Test. It is a measure of local accuracy (from AlphfaFold website). To color code individual residues, we transformed individual PDB files into CIF format. |
| 3D view using mol* of P28069-1 |
| 3D view using mol* of P28069-2 |
pLDDT Score Distribution |
| pLDDT score distribution of the predicted protein structures from AlphaFold2 * AlphaFold produces a per-residue confidence score (pLDDT) between 0 and 100. |
| pLDDT distribution across the protein length of P28069-1 |
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| pLDDT distribution across the protein length of P28069-2 |
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Ramachandran Plot of Protein Structures |
| Ramachandran plot of the torsional angles - phi (φ)and psi (ψ) - of the residues (amino acids) contained in this protein peptide. |
| Ramachandran plot of P28069-1 |
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| Ramachandran plot of P28069-2 |
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Potential Active Site Information |
| The potential binding sites of these proteins were identified using SiteMap, a module of the Schrodinger suite. |
| UniProt-id | Site score | Size | D score | Volume | Exposure | Enclosure | Contact | Phobic | Philic | Balance | Don/Acc | Residues |
| P28069-1 | 0.949 | 137 | 0.992 | 381.073 | 0.614 | 0.587 | 0.825 | 0.435 | 0.92 | 0.473 | 1.194 | 146,148,152,155,156,158,159,160,162,163,164,193,19 6,197,200,201,204,205,206,207,208,209,210,211,212, 213,214,215 |
| P28069-2 | 1.014 | 122 | 1.065 | 562.177 | 0.673 | 0.657 | 0.851 | 0.714 | 0.827 | 0.863 | 0.954 | 150,155,156,158,159,198,202,203,204,205,206,209,24 3,244,245,246,247,252,256,282,283,286,287,290,291, 293,294,297,300,301,303,304,307,308 |
Protein Structure and Feature Comparision |
| Protein Structure Comparision Using Template Modeling Scores (TM-score). |
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| Protein Structure Comparision Visualization with mol*. between Canonical predicted structure (AF2)(orange) vs Canonical validated structure (PDB)(green) |
| 3D view using mol* of P28069-1_P28069-1_5wc9_A.pdb |
| Protein Structure Comparision Visualization with mol*. between Canonical validated structure (PDB)(orange) vs Alternative predicted structure (AF2)(green) |
| 3D view using mol* of P28069-1_5wc9_A_P28069-2.pdb |
| Protein Structure Comparision Visualization with mol*. between Canonical predicted structure (AF2)(orange) vs Alternative predicted structure (AF2)(green) |
| 3D view using mol* of P28069-1_P28069-2.pdb |
| Protein Feature Comparison of the protein sequendary structures among the protiens. |
| ./stats/secondary_structure/figure/P28069-1_vs_P28069-2.png |
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| Protein Feature Comparison of the relative accessible surface area (ASA) among the protiens. |
| ./stats/relative_asa/P28069-1_vs_P28069-2.png |
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Protein-Protein Interaction |
| Interactors from UniProt. |
| Accession_id | Subsection | Start | End | Funcitonal feature | Splicing information |
| Interactors from STRING. |
| Gene name | Interactors |
Related Drugs to POU1F1 |
| Drugs targeting this gene/protein. (DrugBank) |
| UniProt accession | Gene name | DrugBank ID | Drug name | Drug group | Actions |
Related Diseases to POU1F1 |
| Previous studies relating to the alternative splicing of POU1F1 and disease information from the MeSH term (PubMed) |
| Gene | PMID | Title | Abstract | MeSH ID | MeSH term |
| POU1F1 | 8027225 | Pit-1 gene expression in the human pituitary and pituitary adenomas. | The cellular basis for pituitary neoplasia is poorly understood. The POU domain protein Pit-1 is a pituitary-specific transcription factor involved in the generation, differentiation, and proliferation of three pituitary cell types: lactotrophs, somatotrophs, and thyrotrophs. In this study, we analyzed the expression of Pit-1 gene in a series of 15 different human pituitary tumors and compared it with that observed in normal tissue. Pit-1 transcripts, identical in size (2.4 and 4.5 kilobases) and sequence to those observed in normal tissue were evidenced in PRL-, GH-, and TSH-secreting tumors. Pit-1 is overexpressed (2.5- to 5-fold) in the PRL- and GH-secreting tumors, but to an extent consistent with the predominant cellular type of these adenomas. An isoform of Pit-1, with an insertion of 26 amino acids in the trans-activation domain as a result of alternative splicing, is also present in both normal and tumoral tissues. It is concluded that human pituitary tumorigenesis does not seem to be associated with a gross alteration of Pit-1 gene expression. | D000236 | Adenoma |
| POU1F1 | 8027225 | Pit-1 gene expression in the human pituitary and pituitary adenomas. | The cellular basis for pituitary neoplasia is poorly understood. The POU domain protein Pit-1 is a pituitary-specific transcription factor involved in the generation, differentiation, and proliferation of three pituitary cell types: lactotrophs, somatotrophs, and thyrotrophs. In this study, we analyzed the expression of Pit-1 gene in a series of 15 different human pituitary tumors and compared it with that observed in normal tissue. Pit-1 transcripts, identical in size (2.4 and 4.5 kilobases) and sequence to those observed in normal tissue were evidenced in PRL-, GH-, and TSH-secreting tumors. Pit-1 is overexpressed (2.5- to 5-fold) in the PRL- and GH-secreting tumors, but to an extent consistent with the predominant cellular type of these adenomas. An isoform of Pit-1, with an insertion of 26 amino acids in the trans-activation domain as a result of alternative splicing, is also present in both normal and tumoral tissues. It is concluded that human pituitary tumorigenesis does not seem to be associated with a gross alteration of Pit-1 gene expression. | D010911 | Pituitary Neoplasms |
Clinically important variants in POU1F1 |
| (ClinVar, 04/20/2024) |
| accession_id | uniprot_id | gene_name | Type | Variant | Clinical_significance |
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