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P19637 (TPA_RAT) Reviewed, UniProtKB/Swiss-Prot

Last modified December 14, 2011. Version 112. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
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Names and origin

Protein namesRecommended name:
Tissue-type plasminogen activator

Short name=t-PA
Short name=t-plasminogen activator
Short name=tPA
EC=3.4.21.68
Gene names
Name:Plat
OrganismRattus norvegicus (Rat)
Taxonomic identifier10116 [NCBI]
Taxonomic lineageEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaSciurognathiMuroideaMuridaeMurinaeRattus

Protein attributes

Sequence length559 AA.
Sequence statusComplete.
Sequence processingThe displayed sequence is further processed into a mature form.
Protein existenceEvidence at transcript level

General annotation (Comments)

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.

Catalytic activity

Specific cleavage of Arg-|-Val bond in plasminogen to form plasmin.

Enzyme regulation

Inhibited by SERPINA5 By similarity.

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. Forms heterodimer with SERPINA5 By similarity.

Subcellular location

Secretedextracellular space.

Domain

Both FN1 and one of the kringle domains are required for binding to fibrin By similarity.

Both FN1 and EGF-like domains are important for binding to LRP1 By similarity.

The FN1 domain mediates binding to annexin A2 By similarity.

The second kringle domain is implicated in binding to cytokeratin-8 and to the endothelial cell surface binding site By similarity.

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.

Sequence similarities

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.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Signal peptide1 – 1717 Potential
Propeptide18 – 2912 By similarity
PRO_0000028357
Propeptide30 – 323Removed by plasmin
PRO_0000285917
Chain33 – 559527Tissue-type plasminogen activator By similarity
PRO_0000028358
Chain33 – 308276Tissue-type plasminogen activator chain A
PRO_0000028359
Chain309 – 559251Tissue-type plasminogen activator chain B
PRO_0000028360

Regions

Domain36 – 7843Fibronectin type-I
Domain79 – 11739EGF-like
Domain124 – 20582Kringle 1
Domain213 – 29482Kringle 2
Domain309 – 558250Peptidase S1
Region39 – 4911Important for binding to annexin A2 By similarity

Sites

Active site3551Charge relay system
Active site4041Charge relay system
Active site5101Charge relay system
Site991Important for binding to LRP1 By similarity
Site4621Important for single-chain activity By similarity
Site5091Important for single-chain activity By similarity

Amino acid modifications

Glycosylation1491N-linked (GlcNAc...) Potential
Glycosylation4811N-linked (GlcNAc...) Potential
Disulfide bond38 ↔ 68 By similarity
Disulfide bond66 ↔ 75 By similarity
Disulfide bond83 ↔ 94 By similarity
Disulfide bond88 ↔ 105 By similarity
Disulfide bond107 ↔ 116 By similarity
Disulfide bond124 ↔ 205 By similarity
Disulfide bond145 ↔ 187 By similarity
Disulfide bond176 ↔ 200 By similarity
Disulfide bond213 ↔ 294 By similarity
Disulfide bond234 ↔ 276 By similarity
Disulfide bond265 ↔ 289 By similarity
Disulfide bond297 ↔ 428Interchain (between A and B chains) By similarity
Disulfide bond340 ↔ 356 By similarity
Disulfide bond348 ↔ 417 By similarity
Disulfide bond442 ↔ 516 By similarity
Disulfide bond474 ↔ 490 By similarity
Disulfide bond506 ↔ 534 By similarity

Experimental info

Sequence conflict3801E → K in AAA41812. Ref.1

Sequences

Sequence LengthMass (Da)Tools
P19637 [UniParc].

Last modified November 1, 1991. Version 2.
Checksum: 7DBD3809C1D1C921

FASTA55962,903
        10         20         30         40         50         60 
MKGELLCVLL LCGVAFTLPD QGIHRRFRRG ARSYRATCRD EQTQTTYQQH QSWLRPMLRG 

        70         80         90        100        110        120 
NRVEYCRCNS GLAQCHSVPV RSCSEPRCFN GGTCQQALYF SDFVCQCPDG FVGKRCDIDT 

       130        140        150        160        170        180 
RATCFEGQGI TYRGTWSTAE NGAECINWNS SALSQKPYSA RRPNAIKLGL GNHNYCRNPD 

       190        200        210        220        230        240 
RDVKPWCYVF KAGKYTTEFC STPACPKGPT EDCYVGKGVT YRGTHSFTTS KASCLPWNSM 

       250        260        270        280        290        300 
ILIGKTYTAW RANSQALGLG RHNYCRNPDG DAKPWCHVMK DRKLTWEYCD MSPCSTCGLR 

       310        320        330        340        350        360 
QYKQPQFRIK GGLFTDITSH PWQAAIFVKN KRSPGERFLC GGVLISSCWV LSAAHCFVER 

       370        380        390        400        410        420 
FPPHHLKVVL GRTYRVVPGE EEQTFEIEKY IVHKEFDDDT YDNDIALLQL RSDSSQCAQE 

       430        440        450        460        470        480 
SSSVGTACLP DPDVQLPDWT ECELSGYGKH EASSPFFSDR LKEAHVRLYP SSRCTSQHLF 

       490        500        510        520        530        540 
NKTITSNMLC AGDTRTGGNQ DVHDACQGDS GGPLVCMIDK RMTLLGIISW GLGCGQKDVP 

       550 
GIYTKVTNYL NWIQDNMKQ 

« Hide

References

« Hide 'large scale' references
[1]"Cloning and characterization of a cDNA for rat tissue-type plasminogen activator."
Ny T., Leonardsson G., Hsueh A.J.W.
DNA 7:671-677(1988) [PubMed: 3148445] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [MRNA].
[2]"The structure of the TATA-less rat tissue-type plasminogen activator gene. Species-specific sequence divergences in the promoter predict differences in regulation of gene expression."
Feng P., Ohlsson M., Ny T.
J. Biol. Chem. 265:2022-2027(1990) [PubMed: 2105315] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
[3]"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)."
The MGC Project Team
Genome Res. 14:2121-2127(2004) [PubMed: 15489334] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
Tissue: Pituitary.
+Additional computationally mapped references.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
M23697 mRNA. Translation: AAA41812.1.
M31197 expand/collapse EMBL AC list , M31185, M31186, M31187, M31188, M31189, M31190, M31191, M31192, M31193, M31194, M31195, M31196 Genomic DNA. Translation: AAA42261.1.
BC061565 mRNA. Translation: AAH61565.1.
IPIIPI00332012.
PIRA35029.
RefSeqNP_037283.2. NM_013151.2.
UniGeneRn.107102.

3D structure databases

ProteinModelPortalP19637.
SMRP19637. Positions 33-123, 212-558.
ModBaseSearch...

Protein-protein interaction databases

MINTMINT-7138910.
STRINGP19637.

Protein family/group databases

MEROPSS01.232.

Proteomic databases

PRIDEP19637.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblENSRNOT00000025763; ENSRNOP00000025764; ENSRNOG00000019018.
GeneID25692.
KEGGrno:25692.
UCSCNM_013151. rat.

Organism-specific databases

CTD5327.
RGD3342. Plat.

Phylogenomic databases

eggNOGroNOG14617.
GeneTreeENSGT00570000078945.
HOVERGENHBG008633.
InParanoidP19637.
OMATCGLRQY.
OrthoDBEOG4BVRTC.
PhylomeDBP19637.

Enzyme and pathway databases

BRENDA3.4.21.68. 5301.

Gene expression databases

ArrayExpressP19637.
GenevestigatorP19637.
GermOnlineENSRNOG00000019018. Rattus norvegicus.

Family and domain databases

InterProIPR016060. Complement_control_module.
IPR006209. EGF.
IPR006210. EGF-like.
IPR013032. EGF-like_reg_CS.
IPR000742. EGF_3.
IPR000083. Fibronectin_type1.
IPR000001. Kringle.
IPR013806. Kringle-like.
IPR018056. Kringle_CS.
IPR009003. Pept_cys/ser_Trypsin-like.
IPR018114. Peptidase_S1/S6_AS.
IPR001254. Peptidase_S1_S6.
IPR001314. Peptidase_S1A.
[Graphical view]
Gene3DG3DSA:2.10.70.10. Complement_control_module. 1 hit.
G3DSA:2.40.20.10. Kringle. 2 hits.
KOK01343.
PfamPF00008. EGF. 1 hit.
PF00039. fn1. 1 hit.
PF00051. Kringle. 2 hits.
PF00089. Trypsin. 1 hit.
[Graphical view]
PRINTSPR00722. CHYMOTRYPSIN.
PR00018. KRINGLE.
SMARTSM00181. EGF. 1 hit.
SM00058. FN1. 1 hit.
SM00130. KR. 2 hits.
SM00020. Tryp_SPc. 1 hit.
[Graphical view]
SUPFAMSSF57440. Kringle-like. 2 hits.
SSF50494. Pept_Ser_Cys. 1 hit.
PROSITEPS00022. EGF_1. 1 hit.
PS01186. EGF_2. 1 hit.
PS50026. EGF_3. 1 hit.
PS01253. FN1_1. 1 hit.
PS51091. FN1_2. 1 hit.
PS00021. KRINGLE_1. 2 hits.
PS50070. KRINGLE_2. 2 hits.
PS50240. TRYPSIN_DOM. 1 hit.
PS00134. TRYPSIN_HIS. 1 hit.
PS00135. TRYPSIN_SER. 1 hit.
[Graphical view]
ProtoNetSearch...

Other

NextBio607693.

Entry information

Entry nameTPA_RAT
AccessionPrimary (citable) accession number: P19637
Entry history
Integrated into UniProtKB/Swiss-Prot: February 1, 1991
Last sequence update: November 1, 1991
Last modified: December 14, 2011
This is version 112 of the entry and version 2 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Relevant documents

Peptidase families

Classification of peptidase families and list of entries

SIMILARITY comments

Index of protein domains and families