Protein Variants | Comment | Organism |
---|---|---|
additional information | enzyme silencing by different siRNAs, overview | Homo sapiens |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
additional information | heparanase occupies regulatory regions of active genes in T cells | Homo sapiens | - |
- |
nucleus | nuclear heparanase preferentially associates with euchromatin in active and resting Jurkat T cells. Heparanase is recruited to both the promoter and transcribed regions of a distinct cohort of transcriptionally active genes. Endogenous heparanase forms a complex with RNAP II, histone H3 (a key nucleosome component) and the H3K9ac activation mark, in resting and activated T cells | Homo sapiens | 5634 | - |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
8000 | - |
1 * 53000 + 1 * 8000, active heterodimeric form, SDS-PAGE | Homo sapiens |
53000 | - |
1 * 53000 + 1 * 8000, active heterodimeric form, SDS-PAGE | Homo sapiens |
65000 | - |
1 * 65000, inactive pro-form, SDS-PAGE | Homo sapiens |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
additional information | Homo sapiens | heparanase is an endo-beta-glucuronidase that cleaves heparan sulfate and facilitates the passage of migrating cells through extracellular matrices, particularly basement membranes, as well as releasing heparan sulfate-bound growth factors from the extracellular matrices, whereby the released growth factors also aid wound healing and angiogenesis | ? | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Homo sapiens | - |
- |
- |
Source Tissue | Comment | Organism | Textmining |
---|---|---|---|
B-16 cell | - |
Homo sapiens | - |
blood platelet | - |
Homo sapiens | - |
JURKAT cell | - |
Homo sapiens | - |
MCF-7 cell | - |
Homo sapiens | - |
MDA-MB-231 cell | - |
Homo sapiens | - |
MOLT-4 cell | - |
Homo sapiens | - |
T-lymphocyte | heparanase occupies regulatory regions of active genes in T cells | Homo sapiens | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
additional information | heparanase is an endo-beta-glucuronidase that cleaves heparan sulfate and facilitates the passage of migrating cells through extracellular matrices, particularly basement membranes, as well as releasing heparan sulfate-bound growth factors from the extracellular matrices, whereby the released growth factors also aid wound healing and angiogenesis | Homo sapiens | ? | - |
? |
Subunits | Comment | Organism |
---|---|---|
heterodimer | 1 * 53000 + 1 * 8000, active heterodimeric form, SDS-PAGE | Homo sapiens |
monomer | 1 * 65000, inactive pro-form, SDS-PAGE | Homo sapiens |
Organism | Comment | Expression |
---|---|---|
Homo sapiens | phorbol 12-myristate 13-acetate/calcium ionomycin stimulation results in a substantial increase in nuclear heparanase in the 53 kDa active form | up |
General Information | Comment | Organism |
---|---|---|
malfunction | in siRNA treated T-cells, the repressing H3K9ac activation mark is reduced, with transcriptional repression of the CD69, IFNalpha and IL-2 genes and a concomitant decrease in H3K4me1 levels, accumulation of H3K4m2, not H3K4m3 | Homo sapiens |
additional information | endogenous heparanase forms a complex with RNAP II, histone H3 (a key nucleosome component) and the H3K9ac activation mark, in resting and activated T cells and with euchromatin | Homo sapiens |
physiological function | nuclear heparanase controls transcription of a distinct cohort of T-cell inducible genes. Since heparanase associates with active chromatin marks and RNAP II, the activated enzyme plays a role in gene transcription. The endoglycosidase heparanase enters the nucleus of T lymphocytes and modulates H3 methylation at actively transcribed genes via the interplay with key chromatin modifying enzymes. Chromatin-bound heparanase is a prerequisite for the transcription of a subset of inducible immune response genes in activated T-cells. The actions of heparanase seem to influence gene transcription by associating with the demethylase LSD1, preventing recruitment of the methylase MLL and thereby modifying histone H3 methylation patterns. Heparanase belongs to an emerging class of proteins that play an important role in regulating transcription in addition to their well-recognized extra-nuclear functions | Homo sapiens |