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  Tissue-type plasminogen activator

SourceRattus norvegicus (Norway rat)
Taxonomy Rattus norvegicus Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Sciurognathi; Muroidea; Muridae; Murinae; Rattus.
KeywordsCleavage on pair of basic residues; Disulfide bond; EGF-like domain; Glycoprotein; Hydrolase; Kringle; Plasminogen activation; Protease; Repeat; Secreted; Serine protease; Signal; Zymogen.
Details
Function: Converts the abundant, but inactive, zymogen plasminogen to plasmin by hydrolyzing a single Arg-Val bond in plasminogen. By controlling plasmin-mediated proteolysis, it plays an important role in tissue remodeling and degradation, in cell migration and many other physiopathological events.

Post-translational modification: The single chain, almost fully active enzyme, can be further processed into a two-chain fully active form by a cleavage after Arg-308 catalyzed by plasmin, tissue kallikrein or factor Xa.

Similarity: Belongs to the peptidase S1 family. Contains 1 EGF-like domain. Contains 1 fibronectin type-I domain. Contains 2 kringle domains. Contains 1 peptidase S1 domain.

Subcellular location: Secreted, extracellular space.

Subunit structure: Heterodimer of chain A and chain B held by a disulfide bond. Binds to fibrin with high affinity. This interaction leads to an increase in the catalytic efficiency of the enzyme due to an increase in affinity for plasminogen. Similarly, binding to heparin increases the activation of plasminogen. Binds to annexin A2, cytokeratin-8, fibronectin and laminin. Binds to mannose receptor and the low-density lipoprotein receptor-related protein (LRP1); these proteins are involved in TPA clearance. Binds LRP1B; binding is followed by internalization and degradation (By similarity).

Sequence length: 559 AA.

Sequence
MKGELLCVLLLCGVAFTLPDQGIHRRFRRGARSYRATCRDEQTQTTYQQHQSWLRPMLRG
NRVEYCRCNSGLAQCHSVPVRSCSEPRCFNGGTCQQALYFSDFVCQCPDGFVGKRCDIDT
RATCFEGQGITYRGTWSTAENGAECINWNSSALSQKPYSARRPNAIKLGLGNHNYCRNPD
RDVKPWCYVFKAGKYTTEFCSTPACPKGPTEDCYVGKGVTYRGTHSFTTSKASCLPWNSM
ILIGKTYTAWRANSQALGLGRHNYCRNPDGDAKPWCHVMKDRKLTWEYCDMSPCSTCGLR
QYKQPQFRIKGGLFTDITSHPWQAAIFVKNKRSPGERFLCGGVLISSCWVLSAAHCFVER
FPPHHLKVVLGRTYRVVPGEEEQTFEIEKYIVHKEFDDDTYDNDIALLQLRSDSSQCAQE
SSSVGTACLPDPDVQLPDWTECELSGYGKHEASSPFFSDRLKEAHVRLYPSSRCTSQHLF
NKTITSNMLCAGDTRTGGNQDVHDACQGDSGGPLVCMIDKRMTLLGIISWGLGCGQKDVP
GIYTKVTNYLNWIQDNMKQ
Accession NumberP19637 
PubMed ID3148445, 2105315, 15489334 
CTD DB25692
eggNOG DBroNOG14617
Ensembl DBENSRNOT00000025763
CATHG3DSA:2.10.70.10, G3DSA:2.40.20.10
GeneID DB25692
GermOnline DBENSRNOG00000019018
GO DB0005615, 0045202, 0004252, 0048514, 0048167, 0051591, 0051384, 0043434, 0035249
InterPro DBIPR016060, IPR006209, IPR006210, IPR013032, IPR000742, IPR000083, IPR000001, IPR013806, IPR018056, IPR018059, IPR018114, IPR001254, IPR001314, IPR009003
IPI DBIPI00332012
KEGGrno:25692
NCBIM23697, AAA41812, M31197, AAA42261, M31185, M31186, M31187, M31188, M31189, M31190, M31191, M31192, M31193, M31194, M31195, M31196, BC061565, AAH61565, NP_037283.2
OMATCGLRQY
OMIM105200, 134820, 202400, 134830, 202400, 134850, 202400, 176930, 601367, 134390, 188055, 227400, 600880, 601367, 612309, 227500, 134500, 306700, 300746, 306900, 227600, 176860, 188050, 612283, 612304, 176880, 612336, 264900, 612416, 234000, 610618, 610619, 229000, 612423, 107300, 188050, 134570, 134580, 193400, 277480, 228960, 612358, 176895, 173350, 188050, 217090
OrthoDBEOG9TQPVK
PfamPF00008, PF00039, PF00051, PF00089
PROSITE DBPS00022, PS01186, PS50026, PS01253, PS51091, PS00021, PS50070, PS50240, PS00134, PS00135
SMART DBSM00181, SM00058, SM00130, SM00020
UCSCNM_013151
UniGeneRn.107102



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