EC Number   |
Protein Variants |
Reference |
|---|
   3.4.24.7 | DELTA243-340 |
about 10% increase in turnover number and 9% increase in Km-value compared to wild-type enzyme with fTHP-3 as substrate |
654602 |
| 3.4.24.7 | DELTA243-450 |
the KM-value for the alpa1(I)772-786 triple-helical peptide is 3.3fold higher than that of the wild-type enzyme, the turnover number for this substrate is 2.5fold higher |
654919 |
| 3.4.24.7 | E200A |
catalytically inactive, but correctly folded mutant enzyme. MMP-1(Glu200Ala) has an intact HPX domain. The mutant can orient and help unwind the collagen triple helix, while the catalytic MMP-1 domain (MMP-1 CAT) cleaves the triple helix |
752420 |
| 3.4.24.7 | E219A |
inactive mutant |
698886 |
| 3.4.24.7 | L338A/H339A |
site-directed mutagenesis, the mutant shows an increased collagenase activity, the MMP-1 L338A/H339A mutant corresponds to the appearance of a unique anticorrelated motion and decreased correlated motions |
752420 |
| 3.4.24.7 | more |
acid sphingomyelinase-deficient human fibroblasts fail to phosphorylate extracellular signal-regulated kinase, ERK, or upregulate MMP-1 mRNA and protein expression upon stimulation with interleukin-1 beta, overview. Transfection of acid sphingomyelinase restores MMP-1 production, while inhibition of acid sphingomyelinase with imipramine completely abrogates MMP-1 induction |
708511 |
| 3.4.24.7 | more |
although increased MMP-1 levels are usually associated with angiogenesis in enabled proliferative endothelial cells, the exogenous addition of activated MMP-1 on lithium-arrested endothelial cells increases the number of endothelial cells positive for the senescent-associated-beta-galactosidase marker. Conversely, downregulation of MMP-1 expression by small interfering RNAs blunts the lithium-dependent increase in senescent-associated-beta-galactosidase positive cells. Lithium-induced MMP-1 expression is mediated neither by GSK3beta inhibition nor beta-catenin stabilization, lithium-dependent cell cycle arrest and the cell senescent phenotype in aortic endothelial cells are not triggered by inhibition of the inositol phosphate cycle. Induction molecular mechanism, overview |
709025 |
| 3.4.24.7 | more |
construction of a chimeric enzyme, the exon 5 chimera, consisting primarily of MMP-1, with the region coded for by exon 5 replaced with the equivalent region of MMP-3, a noncollagenolytic MMP. Unlike MMP-3, the exon 5 chimera is capable of cleaving type I collagen, but the activity is only 2.2% of the trypsin-activated MMP-1. The kinetics for exon 5 chimera cleavage of two synthetic substrates display an MMP-3 phenotype, however, cleavage of gelatin is slightly impaired as compared to the parent enzymes. The KI-values for the exon 5 chimera complexed with synthetic inhibitors and N-terminal TIMP-2 show a more MMP-3-like behaviour. The exon 5 mutant shows a 2.9fold in the ratio of turnover number to Km-value with (7-methoxycoumarin-4-yl)-acetyl-Pro-Leu-Gly-Leu-(3-(2,4-dinitrophenyl)-L-2,3-diaminopropionyl)-Ala-Arg-NH2 |
655414 |
| 3.4.24.7 | more |
development of a piezoelectric immunosensor for matrix metalloproteinase-1 detection based on multilayered ultra-thin films composed by precursor layers of cationic poly(dimethyldiallylammonium) chloride and anionic poly(styrenesulfonate) with bound monolayer of antibodies, Layer by Layer self assembly technique, evaluation, overview |
708231 |
| 3.4.24.7 | more |
disruption of the proximal AP-1-binding site in the promoter of MMP-1 severely impair MMP-1 transcription in response to bortezomib |
707313 |
