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(-) Description

Title :  CRYSTAL STRUCTURE OF STROMELYSIN CATALYTIC DOMAIN
 
Authors :  M. G. Williams, Q. -Z. Ye, F. Molina, L. L. Johnson, D. F. Ortwine, A. G. Pavlovsky, J. R. Rubin, R. W. Skeean, A. D. White, T. L. Blundell, C. Humblet, D. J. Hupe, V. Dhanaraj
Date :  11 Jun 99  (Deposition) - 11 Feb 03  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym. Unit :  A,B,C,D
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Biol. Unit 3:  C  (1x)
Biol. Unit 4:  D  (1x)
Keywords :  Inhibitor, Matrixin, Matrix Metalloproteinase-3 (Mmp-3), Stromelysin-1, Metzincin, Hydrolase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  A. G. Pavlovsky, M. G. Williams, Q. -Z. Ye, D. F. Ortwine, C. F. Purchase 2Nd, A. D. White, V. Dhanaraj, B. D. Roth, L. L. Johnson, D. J. Hupe, C. Humblet, T. L. Blundell
X-Ray Structure Of Human Stromelysin Catalytic Domain Complexed With Nonpeptide Inhibitors: Implications For Inhibitor Selectivity
Protein Sci. V. 8 1455 1999
PubMed-ID: 10422833
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - PROTEIN (STROMELYSIN-1)
    Chains: A, B, C, D
    EC Number: 3.4.24.17
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Fragment: CATALYTIC DOMAIN RESIDUES 89-249
    Organism Common: HUMAN
    Organism Scientific: HOMO SAPIENS
    Organism Taxid: 9606
    Other Details: COMPLEX WITH DIPHENYLPIPERIDINE INHIBITOR
    Synonym: MATRIX METALLOPROTEINASE-3

 Structural Features

(-) Chains, Units

  1234
Asymmetric Unit : ABCD
Biological Unit 1 (1x): A   
Biological Unit 2 (1x):  B  
Biological Unit 3 (1x):   C 
Biological Unit 4 (1x):    D

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 20)

Asymmetric Unit (2, 20)
No.NameCountTypeFull Name
1CA12Ligand/IonCALCIUM ION
2ZN8Ligand/IonZINC ION
Biological Unit 1 (0, 0)
No.NameCountTypeFull Name
1CA-1Ligand/IonCALCIUM ION
2ZN-1Ligand/IonZINC ION
Biological Unit 2 (0, 0)
No.NameCountTypeFull Name
1CA-1Ligand/IonCALCIUM ION
2ZN-1Ligand/IonZINC ION
Biological Unit 3 (0, 0)
No.NameCountTypeFull Name
1CA-1Ligand/IonCALCIUM ION
2ZN-1Ligand/IonZINC ION
Biological Unit 4 (0, 0)
No.NameCountTypeFull Name
1CA-1Ligand/IonCALCIUM ION
2ZN-1Ligand/IonZINC ION

(-) Sites  (20, 20)

Asymmetric Unit (20, 20)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREHIS A:201 , HIS A:205 , HIS A:211BINDING SITE FOR RESIDUE ZN A 501
02AC2SOFTWAREHIS A:151 , ASP A:153 , HIS A:166 , HIS A:179BINDING SITE FOR RESIDUE ZN A 502
03AC3SOFTWAREHIS B:201 , HIS B:205 , HIS B:211BINDING SITE FOR RESIDUE ZN B 501
04AC4SOFTWAREHIS B:151 , ASP B:153 , HIS B:166 , HIS B:179BINDING SITE FOR RESIDUE ZN B 502
05AC5SOFTWAREHIS C:201 , HIS C:205 , HIS C:211BINDING SITE FOR RESIDUE ZN C 501
06AC6SOFTWAREHIS C:151 , ASP C:153 , HIS C:166 , HIS C:179BINDING SITE FOR RESIDUE ZN C 502
07AC7SOFTWAREHIS D:201 , HIS D:205 , HIS D:211BINDING SITE FOR RESIDUE ZN D 501
08AC8SOFTWAREHIS D:151 , ASP D:153 , HIS D:166 , HIS D:179BINDING SITE FOR RESIDUE ZN D 502
09AC9SOFTWAREASP A:158 , GLY A:159 , GLY A:161 , VAL A:163 , ASP A:181 , GLU A:184BINDING SITE FOR RESIDUE CA A 503
10BC1SOFTWAREALA A:140 , ASP A:141 , GLY A:173 , ASN A:175 , ASP A:177 , HOH A:301BINDING SITE FOR RESIDUE CA A 504
11BC2SOFTWAREASP A:107 , ASP A:182 , GLU A:184 , HOH A:302BINDING SITE FOR RESIDUE CA A 505
12BC3SOFTWAREASP B:158 , GLY B:159 , GLY B:161 , VAL B:163 , ASP B:181 , GLU B:184BINDING SITE FOR RESIDUE CA B 503
13BC4SOFTWAREALA B:140 , ASP B:141 , GLY B:173 , ASN B:175 , ASP B:177 , HOH B:303BINDING SITE FOR RESIDUE CA B 504
14BC5SOFTWAREASP B:107 , ASP B:182 , GLU B:184BINDING SITE FOR RESIDUE CA B 505
15BC6SOFTWAREASP C:158 , GLY C:159 , GLY C:161 , VAL C:163 , ASP C:181 , GLU C:184BINDING SITE FOR RESIDUE CA C 503
16BC7SOFTWAREALA C:140 , ASP C:141 , GLY C:173 , ASN C:175 , ASP C:177 , HOH C:305BINDING SITE FOR RESIDUE CA C 504
17BC8SOFTWAREASP C:107 , ASP C:182 , GLU C:184 , HOH C:306BINDING SITE FOR RESIDUE CA C 505
18BC9SOFTWAREASP D:158 , GLY D:159 , GLY D:161 , VAL D:163 , ASP D:181 , GLU D:184BINDING SITE FOR RESIDUE CA D 503
19CC1SOFTWAREALA D:140 , ASP D:141 , GLY D:173 , ASN D:175 , ASP D:177 , HOH D:307BINDING SITE FOR RESIDUE CA D 504
20CC2SOFTWAREASP D:107 , ASP D:182 , GLU D:184 , HOH D:308BINDING SITE FOR RESIDUE CA D 505

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1QIC)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1QIC)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1QIC)

(-) PROSITE Motifs  (1, 4)

Asymmetric Unit (1, 4)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ZINC_PROTEASEPS00142 Neutral zinc metallopeptidases, zinc-binding region signature.MMP3_HUMAN215-224
 
 
 		  4A:198-207
B:198-207
C:198-207
D:198-207
Biological Unit 1 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ZINC_PROTEASEPS00142 Neutral zinc metallopeptidases, zinc-binding region signature.MMP3_HUMAN215-224
 
 
 		  1A:198-207
-
-
-
Biological Unit 2 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ZINC_PROTEASEPS00142 Neutral zinc metallopeptidases, zinc-binding region signature.MMP3_HUMAN215-224
 
 
 		  1-
B:198-207
-
-
Biological Unit 3 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ZINC_PROTEASEPS00142 Neutral zinc metallopeptidases, zinc-binding region signature.MMP3_HUMAN215-224
 
 
 		  1-
-
C:198-207
-
Biological Unit 4 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ZINC_PROTEASEPS00142 Neutral zinc metallopeptidases, zinc-binding region signature.MMP3_HUMAN215-224
 
 
 		  1-
-
-
D:198-207

(-) Exons   (5, 20)

Asymmetric Unit (5, 20)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1aENST000002998551aENSE00002171374chr11:102714534-102714173362MMP3_HUMAN1-35350--
1.2ENST000002998552ENSE00001105428chr11:102713647-102713403245MMP3_HUMAN36-117824A:89-100
B:89-100
C:89-100
D:89-100		12
12
12
12
1.3ENST000002998553ENSE00001642002chr11:102713310-102713162149MMP3_HUMAN117-167514A:100-150
B:100-150
C:100-150
D:100-150		51
51
51
51
1.4bENST000002998554bENSE00001105420chr11:102713010-102712885126MMP3_HUMAN167-209434A:150-192
B:150-192
C:150-192
D:150-192		43
43
43
43
1.5ENST000002998555ENSE00001657829chr11:102711324-102711160165MMP3_HUMAN209-264564A:192-247
B:192-247
C:192-247
D:192-247		56
56
56
56
1.6ENST000002998556ENSE00001105427chr11:102710983-102710839145MMP3_HUMAN264-312494A:247-249
B:247-249
C:247-249
D:247-249		3
3
3
3
1.7ENST000002998557ENSE00001105439chr11:102709974-102709841134MMP3_HUMAN312-357460--
1.8ENST000002998558ENSE00001801971chr11:102709441-102709282160MMP3_HUMAN357-410540--
1.9ENST000002998559ENSE00001105448chr11:102708132-102708029104MMP3_HUMAN410-445360--
1.11ENST0000029985511ENSE00001292630chr11:102706957-102706532426MMP3_HUMAN445-477330--

(-) Sequences/Alignments

Asymmetric Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:161
 aligned with MMP3_HUMAN | P08254 from UniProtKB/Swiss-Prot  Length:477

    Alignment length:161
                                   115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265 
           MMP3_HUMAN   106 IPKWRKTHLTYRIVNYTPDLPKDAVDSAVEKALKVWEEVTPLTFSRLYEGEADIMISFAVREHGDFYPFDGPGNVLAHAYAPGPGINGDAHFDDDEQWTKDTTGTNLFLVAAHEIGHSLGLFHSANTEALMYPLYHSLTDLTRFRLSQDDINGIQSLYGPP 266
               SCOP domains d1qica_ A: Stromelysin-1 (MMP-3)                                                                                                                                  SCOP domains
               CATH domains 1qicA00 A:89-249 Collagenase (Catalytic Domain)                                                                                                                   CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .......eeeeee........hhhhhhhhhhhhhhhhh....eeee.......eeeeee.................eee..........eeee.............hhhhhhhhhhhh......................hhh....hhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------ZINC_PROTE------------------------------------------ PROSITE
           Transcript 1 (1) Exon 1.2    -------------------------------------------------Exon 1.4b  PDB: A:150-192 UniProt: 167-209 ------------------------------------------------------1.6 Transcript 1 (1)
           Transcript 1 (2) -----------Exon 1.3  PDB: A:100-150 UniProt: 117-167          -----------------------------------------Exon 1.5  PDB: A:192-247 UniProt: 209-264               -- Transcript 1 (2)
                 1qic A  89 IPKWRKTHLTYRIVNYTPDLPKDAVDSAVEKALKVWEEVTPLTFSRLYEGEADIMISFAVREHGDFYPFDGPGNVLAHAYAPGPGINGDAHFDDDEQWTKDTTGTNLFLVAAHEIGHSLGLFHSANTEALMYPLYHSLTDLTRFRLSQDDINGIQSLYGPP 249
                                    98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248 


Chain B from PDB  Type:PROTEIN  Length:161
 aligned with MMP3_HUMAN | P08254 from UniProtKB/Swiss-Prot  Length:477

    Alignment length:161
                                   115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265 
           MMP3_HUMAN   106 IPKWRKTHLTYRIVNYTPDLPKDAVDSAVEKALKVWEEVTPLTFSRLYEGEADIMISFAVREHGDFYPFDGPGNVLAHAYAPGPGINGDAHFDDDEQWTKDTTGTNLFLVAAHEIGHSLGLFHSANTEALMYPLYHSLTDLTRFRLSQDDINGIQSLYGPP 266
               SCOP domains d1qicb_ B: Stromelysin-1 (MMP-3)                                                                                                                                  SCOP domains
               CATH domains 1qicB00 B:89-249 Collagenase (Catalytic Domain)                                                                                                                   CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .......eeeeee........hhhhhhhhhhhhhhhhh....eeee.......eeeeee.................eee..........eeee.............hhhhhhhhhhhh......................hhh....hhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------ZINC_PROTE------------------------------------------ PROSITE
           Transcript 1 (1) Exon 1.2    -------------------------------------------------Exon 1.4b  PDB: B:150-192 UniProt: 167-209 ------------------------------------------------------1.6 Transcript 1 (1)
           Transcript 1 (2) -----------Exon 1.3  PDB: B:100-150 UniProt: 117-167          -----------------------------------------Exon 1.5  PDB: B:192-247 UniProt: 209-264               -- Transcript 1 (2)
                 1qic B  89 IPKWRKTHLTYRIVNYTPDLPKDAVDSAVEKALKVWEEVTPLTFSRLYEGEADIMISFAVREHGDFYPFDGPGNVLAHAYAPGPGINGDAHFDDDEQWTKDTTGTNLFLVAAHEIGHSLGLFHSANTEALMYPLYHSLTDLTRFRLSQDDINGIQSLYGPP 249
                                    98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248 


Chain C from PDB  Type:PROTEIN  Length:161
 aligned with MMP3_HUMAN | P08254 from UniProtKB/Swiss-Prot  Length:477

    Alignment length:161
                                   115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265 
           MMP3_HUMAN   106 IPKWRKTHLTYRIVNYTPDLPKDAVDSAVEKALKVWEEVTPLTFSRLYEGEADIMISFAVREHGDFYPFDGPGNVLAHAYAPGPGINGDAHFDDDEQWTKDTTGTNLFLVAAHEIGHSLGLFHSANTEALMYPLYHSLTDLTRFRLSQDDINGIQSLYGPP 266
               SCOP domains d1qicc_ C: Stromelysin-1 (MMP-3)                                                                                                                                  SCOP domains
               CATH domains 1qicC00 C:89-249 Collagenase (Catalytic Domain)                                                                                                                   CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .......eeeeee........hhhhhhhhhhhhhhhhh....eeee.......eeeeee.................eee..........eeee.............hhhhhhhhhhhh......................hhh....hhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------ZINC_PROTE------------------------------------------ PROSITE
           Transcript 1 (1) Exon 1.2    -------------------------------------------------Exon 1.4b  PDB: C:150-192 UniProt: 167-209 ------------------------------------------------------1.6 Transcript 1 (1)
           Transcript 1 (2) -----------Exon 1.3  PDB: C:100-150 UniProt: 117-167          -----------------------------------------Exon 1.5  PDB: C:192-247 UniProt: 209-264               -- Transcript 1 (2)
                 1qic C  89 IPKWRKTHLTYRIVNYTPDLPKDAVDSAVEKALKVWEEVTPLTFSRLYEGEADIMISFAVREHGDFYPFDGPGNVLAHAYAPGPGINGDAHFDDDEQWTKDTTGTNLFLVAAHEIGHSLGLFHSANTEALMYPLYHSLTDLTRFRLSQDDINGIQSLYGPP 249
                                    98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248 


Chain D from PDB  Type:PROTEIN  Length:161
 aligned with MMP3_HUMAN | P08254 from UniProtKB/Swiss-Prot  Length:477

    Alignment length:161
                                   115       125       135       145       155       165       175       185       195       205       215       225       235       245       255       265 
           MMP3_HUMAN   106 IPKWRKTHLTYRIVNYTPDLPKDAVDSAVEKALKVWEEVTPLTFSRLYEGEADIMISFAVREHGDFYPFDGPGNVLAHAYAPGPGINGDAHFDDDEQWTKDTTGTNLFLVAAHEIGHSLGLFHSANTEALMYPLYHSLTDLTRFRLSQDDINGIQSLYGPP 266
               SCOP domains d1qicd_ D: Stromelysin-1 (MMP-3)                                                                                                                                  SCOP domains
               CATH domains 1qicD00 D:89-249 Collagenase (Catalytic Domain)                                                                                                                   CATH domains
           Pfam domains (1) --Peptidase_M10-1qicD01 D:91-247                                                                                                                               -- Pfam domains (1)
           Pfam domains (2) --Peptidase_M10-1qicD02 D:91-247                                                                                                                               -- Pfam domains (2)
           Pfam domains (3) --Peptidase_M10-1qicD03 D:91-247                                                                                                                               -- Pfam domains (3)
           Pfam domains (4) --Peptidase_M10-1qicD04 D:91-247                                                                                                                               -- Pfam domains (4)
         Sec.struct. author .......eeeeee........hhhhhhhhhhhhhhhhh....eeee.......eeeeee.................eee..........eeee.............hhhhhhhhhhhh......................hhh....hhhhhhhhhhh... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------ZINC_PROTE------------------------------------------ PROSITE
           Transcript 1 (1) Exon 1.2    -------------------------------------------------Exon 1.4b  PDB: D:150-192 UniProt: 167-209 ------------------------------------------------------1.6 Transcript 1 (1)
           Transcript 1 (2) -----------Exon 1.3  PDB: D:100-150 UniProt: 117-167          -----------------------------------------Exon 1.5  PDB: D:192-247 UniProt: 209-264               -- Transcript 1 (2)
                 1qic D  89 IPKWRKTHLTYRIVNYTPDLPKDAVDSAVEKALKVWEEVTPLTFSRLYEGEADIMISFAVREHGDFYPFDGPGNVLAHAYAPGPGINGDAHFDDDEQWTKDTTGTNLFLVAAHEIGHSLGLFHSANTEALMYPLYHSLTDLTRFRLSQDDINGIQSLYGPP 249
                                    98       108       118       128       138       148       158       168       178       188       198       208       218       228       238       248
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 4)

Asymmetric Unit
(-)
Class: Alpha and beta proteins (a+b) (23004)

(-) CATH Domains  (1, 4)

Asymmetric Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (1, 4)

Asymmetric Unit
(-)
Clan: Peptidase_MA (251)

(-) Gene Ontology  (21, 21)

Asymmetric Unit(hide GO term definitions)
Chain A,B,C,D   (MMP3_HUMAN | P08254)
molecular function
    GO:0005509    calcium ion binding    Interacting selectively and non-covalently with calcium ions (Ca2+).
    GO:0004175    endopeptidase activity    Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain.
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    GO:0004222    metalloendopeptidase activity    Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a mechanism in which water acts as a nucleophile, one or two metal ions hold the water molecule in place, and charged amino acid side chains are ligands for the metal ions.
    GO:0008237    metallopeptidase activity    Catalysis of the hydrolysis of peptide bonds by a mechanism in which water acts as a nucleophile, one or two metal ions hold the water molecule in place, and charged amino acid side chains are ligands for the metal ions.
    GO:0008233    peptidase activity    Catalysis of the hydrolysis of a peptide bond. A peptide bond is a covalent bond formed when the carbon atom from the carboxyl group of one amino acid shares electrons with the nitrogen atom from the amino group of a second amino acid.
    GO:0005515    protein binding    Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
    GO:0004252    serine-type endopeptidase activity    Catalysis of the hydrolysis of internal, alpha-peptide bonds in a polypeptide chain by a catalytic mechanism that involves a catalytic triad consisting of a serine nucleophile that is activated by a proton relay involving an acidic residue (e.g. aspartate or glutamate) and a basic residue (usually histidine).
    GO:0008270    zinc ion binding    Interacting selectively and non-covalently with zinc (Zn) ions.
biological process
    GO:0071732    cellular response to nitric oxide    Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a nitric oxide stimulus.
    GO:0030574    collagen catabolic process    The proteolytic chemical reactions and pathways resulting in the breakdown of collagen in the extracellular matrix, usually carried out by proteases secreted by nearby cells.
    GO:0022617    extracellular matrix disassembly    A process that results in the breakdown of the extracellular matrix.
    GO:0010727    negative regulation of hydrogen peroxide metabolic process    Any process that decreases the frequency, rate or extent of the chemical reactions and pathways involving hydrogen peroxide.
    GO:1903209    positive regulation of oxidative stress-induced cell death    Any process that activates or increases the frequency, rate or extent of oxidative stress-induced cell death.
    GO:0032461    positive regulation of protein oligomerization    Any process that activates or increases the frequency, rate or extent of protein oligomerization.
    GO:0006508    proteolysis    The hydrolysis of proteins into smaller polypeptides and/or amino acids by cleavage of their peptide bonds.
cellular component
    GO:0031012    extracellular matrix    A structure lying external to one or more cells, which provides structural support for cells or tissues.
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
    GO:0005615    extracellular space    That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.
    GO:0005578    proteinaceous extracellular matrix    A layer consisting mainly of proteins (especially collagen) and glycosaminoglycans (mostly as proteoglycans) that forms a sheet underlying or overlying cells such as endothelial and epithelial cells. The proteins are secreted by cells in the vicinity. An example of this component is found in Mus musculus.

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  MMP3_HUMAN | P08254
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 Related Entries

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        MMP3_HUMAN | P08254: 1b3d 1b8y 1biw 1bm6 1bqo 1c3i 1c8t 1caq 1ciz 1cqr 1d5j 1d7x 1d8f 1d8m 1g05 1g49 1g4k 1hfs 1hy7 1m1w 1oo9 1qia 1slm 1sln 1uea 1ums 1umt 1usn 2d1o 2jnp 2jt5 2jt6 2srt 2usn 3ohl 3oho 3usn 4dpe 4g9l 4ja1

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