2ARQ,1BY7,1JRR,2ARR


Conserved Protein Domain Family
serpinB2_PAI-2

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cd19562: serpinB2_PAI-2 
Click on image for an interactive view with Cn3D
serpin family B member 2, plasminogen activator inhibitor 2
Plasminogen activator inhibitor-2 (PAI-2/PLANH2, also called placental PAI, monocyte arg-serpin, or urokinase inhibitor) is a serine protease inhibitor that belongs to the ovalbumin family of serpins (ov-serpins). It is an effective inhibitor of urinary plasminogen activator (urokinase or uPA) and is involved in cell differentiation, tissue growth and regeneration. Ov-serpins are a family of closely related proteins, whose members can be secreted (ovalbumin), cytosolic (leukocyte elastase inhibitor, LEI), or targeted to both compartments (plasminogen activator inhibitor 2, PAI-2). It also characterized by N- and C-terminal extensions, the absence of a signal peptide, and a Ser rather than an Asn residue at the penultimate position. The ov-serpins corresponds to clade B of the serpin superfamily. In general, SERine Proteinase INhibitors (serpins) exhibit conformational polymorphism shifting from native to cleaved, latent, delta, or polymorphic forms. Many serpins, such as antitrypsin and antichymotrypsin, function as serine protease inhibitors which regulate blood coagulation cascades. Non-inhibitory serpins perform many diverse functions such as chaperoning proteins or transporting hormones. Serpins are of medical interest because mutants can cause blood clotting disorders, emphysema, cirrhosis, and dementia. A classification based on evolutionary relatedness has resulted in the assignment of serpins to 16 clades designated A-P along with some orphans.
Statistics
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PSSM-Id: 381029
Aligned: 8 rows
Threshold Bit Score: 813.836
Created: 28-Aug-2017
Updated: 2-Oct-2020
Structure
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Program:
Drawing:
Aligned Rows:
 
reactive center
Conserved site includes 31 residues -Click on image for an interactive view with Cn3D
Feature 1:reactive center loop (RCL)
Evidence:
  • Comment:depending on the conformational state, RCL is surface accessible in the active form or buried and inserted as the central beta strand in the inactive form
  • Structure:2ARQ_A: Human plasminogen activator inhibitor-2 deletion mutant RCL, solvent-exposed

Sequence Alignment
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Format: Row Display: Color Bits: Type Selection:
Feature 1                                                                                        
2ARQ_A         2 EDLCVANTLFALNLFKHLAKASP-TQNLFLSPWSISSTMAMVYMGSRGSTEDQMASVLQFNEVGA--------------- 65  human
1BY7_A         2 EDLCVANTLFALNLFKHLAKASP-TQNLFLSPWSISSTMAMVYMGSRGSTEDQMAKVLQFNEVGA--------------- 65  human
1JRR_A         2 EDLCVANTLFALNLFKHLAKASP-TQNLFLSPWSISSTMAMVYMGSRGSTEDQMAKVLQFNEVGA--------------- 65  human
2ARR_A         2 EDLCVANTLFALNLFKHLAKASP-TQNLFLSPWSISSTMAMVYMGSRGSTEDQMASVLQFNEVGA--------------- 65  human
P12388         2 EELSMANTMFALNLLKQIEKSNS-TQNIFISPWSISSTLAIVLLGAGGNTEQQMAKVLQFNEIGSygittrnpenfsgcd 80  house mouse
P29524         2 EELSMANTMFALNLLKQIEQSNS-TQNIFISPWSISSTLAIVFLGAQANTEEQMAKVLNFDKIGSydltpgnpenfhgcd 80  Norway rat
P05120         2 EDLCVANTLFALNLFKHLAKASP-TQNLFLSPWSISSTMAMVYMGSRGSTEDQMAKVLQFNEVGAnavtpmtpenftscg 80  human
NP_001179008   2 EELNVANTIFALNFFKHLANTSAnTQNIFFCPWSISSTVAMVYLGARGNTADQIAQVLQFNQVGVhkgtpvtpqsltscd 81  cattle
Feature 1                                                                                        
2ARQ_A        66 ------------------AADKIHSSFRSLSSAINASTG-NYLLESVNKLFGEKSASFREEYIRLCQKYYSSEPQAVDFL 126 human
1BY7_A        66 ------------------AADKIHSSFRSLSSAINASTG-NYLLESVNKLFGEKSASFREEYIRLCQKYYSSEPQAVDFL 126 human
1JRR_A        66 ------------------AADKIHSSFRSLSSAINASTG-NYLLESVNKLFGEKSASFREEYIRLCQKYYSSEPQAVDFL 126 human
2ARR_A        66 ------------------AADKIHSSFRSLSSAINASTG-NYLLESVNKLFGEKSASFREEYIRLCQKYYSSEPQAVDFL 126 human
P12388        81 faqqiqkenypsailqaqAGDKIHSAFSSLSSTINTPQG-DYLLESANKLFGEKSARFKEEYIQLSKKYYSTEPEAVDFL 159 house mouse
P29524        81 faqhiqrdnypvailqaqARDKIHSAFSSLSSTINTPRLgDYLLESANKLFGEKSARFKEEYIQRCKKYYSTEPEAVDFL 160 Norway rat
P05120        81 fmqqiqkgsypdailqaqAADKIHSSFRSLSSAINASTG-NYLLESVNKLFGEKSASFREEYIRLCQKYYSSEPQAVDFL 159 human
NP_001179008  82 ftqqiqrdtfpdailqaqAAGKIHSSFRSLSNAINASTG-EYLLESANMLFGEKSARFKEEYMQLSKKYYSTEPQAVDFL 160 cattle
Feature 1                                                                                        
2ARQ_A       127 ECAEEARKKINSWVKTQTKGKIPNLLPEGSVDGDTRMVLVNAVYFKGKWKTPFEKKLNGLFPFRVNSAQRTPVQMMYLRE 206 human
1BY7_A       127 ECAEEARKKINSWVKTQTKGKIPNLLPEGSVDGDTRMVLVNAVYFKGKWKTPFEKKLNGLYPFRVNSAQRTPVQMMYLRE 206 human
1JRR_A       127 ECAEEARKKINSWVKTQTKGKIPNLLPEGSVDGDTRMVLVNAVYFKGKWKTPFEKKLNGLYPFRVNSAQRTPVQMMYLRE 206 human
2ARR_A       127 ECAEEARKKINSWVKTQTKGKIPNLLPEGSVDGDTRMVLVNAVYFKGKWKTPFEKKLNGLFPFRVNSAQRTPVQMMYLRE 206 human
P12388       160 ECAEEAREKINSWVKTQTKGEIPNLLPEGSVDEDTKMVLVNAVYFKGKWKTPFEKKLNGLYPFRVNSHESIPVQMMFLHA 239 house mouse
P29524       161 ECANEARKKINSWVKTQTKGEIPNLLPEGSVDEDTKMVLVNTIYFKGRWKTPFQKRLNGLYPFRVNLNESKPVQMMYLRE 240 Norway rat
P05120       160 ECAEEARKKINSWVKTQTKGKIPNLLPEGSVDGDTRMVLVNAVYFKGKWKTPFEKKLNGLYPFRVNSAQRTPVQMMYLRE 239 human
NP_001179008 161 ERAEDTRKKINSWVKTQTKGKIPNLLPEGSVDVDTKMVLVNAVYFKGRWKTPFQKKLKGLYPFRVNSTQRKSVEMMFLNE 240 cattle
Feature 1                                                                                        
2ARQ_A       207 KLNIGYIEDLKAQILELPYAGDVSMFLLLPDEIADVSTGLELLESEITYDKLNKWTSKDKMAEDEVEVYIPQFKLEEHYE 286 human
1BY7_A       207 KLNIGYIEDLKAQILELPYAGDVSMFLLLPDEIADVSTGLELLESEITYDKLNKWTSKDKMAEDEVEVYIPQFKLEEHYE 286 human
1JRR_A       207 KLNIGYIEDLKAQILELPYAGDVSMFLLLPDEIADVSTGLELLESEITYDKLNKWTSKDKMAEDEVEVYIPQFKLEEHYE 286 human
2ARR_A       207 KLNIGYIEDLKAQILELPYAGDVSMFLLLPDEIADVSTGLELLESEITYDKLNKWTSKDKMAEDEVEVYIPQFKLEEHYE 286 human
P12388       240 KLNIGYIKDLKTQILELPHTGNISMLLLLPDEIEDASTGLELLESEINFANFNKWISKDTLDEDDVVVYIPKFKLAQSYE 319 house mouse
P29524       241 KLNIGYIKDLKTQILELPYIGNISMFLLLPDEIEDSSTGLEMLEREINFDNFNKWISKETLDEDDVLVYIPKFKLAQNYE 320 Norway rat
P05120       240 KLNIGYIEDLKAQILELPYAGDVSMFLLLPDEIADVSTGLELLESEITYDKLNKWTSKDKMAEDEVEVYIPQFKLEEHYE 319 human
NP_001179008 241 KLNIGYIADLKVQILELPYAGDVSMFLLLPDGIAESSTGLEMLESEITYDKLNKWLSKDTMAEDDVVVYIPEFKLEEHYE 320 cattle
Feature 1                                                   ###############################      
2ARQ_A       287 LRSILRSMGMEDAFNKGRANFSGMSERNDLFLSEVFHQAMVDVNEEGTEAAAGTGGVMTGRTGHGGPQFVADHPFLFLIM 366 human
1BY7_A       287 LRSILRSMGMEDAFNKGRANFSGMSERNDLFLSEVFHQAMVDVNEEGTEAAAGTGGVMTGRTGHGGPQFVADHPFLFLIM 366 human
1JRR_A       287 LRSILRSMGMEDAFNKGRANFSGMSERNDLFLSEVFHQAMVDVNEEGTEAAAGTGGVMTGRTGHGGPQFVADHPFLFLIM 366 human
2ARR_A       287 LRSILRSMGMEDAFNKGRANFSGMSERNDLFLSEVFHQAMVDVNEEGTEAAAGTGGVMTGRTGHGGPQFVADHPFLFLIM 366 human
P12388       320 LKSILQSMGMEDAFNKGKANFSGMSERNDLFLSEVFHQASVDVTEEGTVAAGGTGAVMTGRTGHGGPQFVADHPFLFFIM 399 house mouse
P29524       321 LKPILQRMGMEDAFNKGKADFSGMSESNDLFLSEVFHQATVDVNEEGTVAAGGTGAVMTGRTGHGGPQFVADHPFLFFIM 400 Norway rat
P05120       320 LRSILRSMGMEDAFNKGRANFSGMSERNDLFLSEVFHQAMVDVNEEGTEAAAGTGGVMTGRTGHGGPQFVADHPFLFLIM 399 human
NP_001179008 321 LKTILTSMGMGDAFSQGRANFSGMSGKNDLFLSEVFHQASVEVNEEGTEAAAGTGAIMTGRTGHGGPQFVADHPFLFFIM 400 cattle
Feature 1                        
2ARQ_A       367 HKITNCILFFGRFSSP 382 human
1BY7_A       367 HKITNCILFFGRFSSP 382 human
1JRR_A       367 HKITNCILFFGRFSSP 382 human
2ARR_A       367 HKITNCILFFGRFSSP 382 human
P12388       400 DKITHTILFVGRFSSP 415 house mouse
P29524       401 NNITRTILFVGRFSSP 416 Norway rat
P05120       400 HKITNCILFFGRFSSP 415 human
NP_001179008 401 HKITKSILFWGRFASP 416 cattle

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