Table 1

Matrix metalloproteinases (MMPs) and their substrates

MMP
Enzyme
Mr latent
Mr active
Known substrates

MMP-1
Interstitial collagenase (collagenase-1)
55,000
45,000
Collagens I, II, III, VII, VIII and X, gelatin, aggrecan, versican, proteoglycan link protein, casein, α1-proteinase inhibitor, α2-M, pregnancy zone protein, ovostatin, nidogen, MBP, proTNF, L-selectin, proMMP-2, proMMP-9
MMP-2
Gelatinase A
72,000
66,000
Collagens I, IV, V, VII, X, XI and XIV, gelatin, elastin, fibronectin, aggrecan, versican, proteoglycan link protein, MBP, proTNF, α1-proteinase inhibitor, proMMP-9, proMMP-13
MMP-3
Stromelysin-1
57,000
45,000
Collagens III, IV, IX and X, gelatin, aggrecan, versican, perlecan, nidogen, proteoglycan link protein, fibronectin, laminin, elastin, casein, fibrinogen, antithrombin-III, α2M, ovostatin, α1-proteinase inhibitor, MBP, proTNF, proMMP-1, proMMP-7, proMMP-8, proMMP-9, proMMP-13
MMP-7
Matrilysin-1 (PUMP-1)
28,000
19,000
Collagens IV and X, gelatin, aggrecan, proteoglycan link protein, fibronectin, laminin, entactin, elastin, casein, transferrin, MBP, α1-proteinase inhibitor, proTNF, proMMP-1, proMMP-2, proMMP-9
MMP-8
Neutrophil collagenase
75,000
58,000
Collagens I, II, III, V, VII, VIII and X, gelatin, aggrecan, α1-proteinase (collagenase-2) inhibitor, α2-antiplasmin, fibronectin
MMP-9
Gelatinase B
92,000
86,000
Collagens IV, V, VII, X and XIV, gelatin, elastin, aggrecan, versican, proteoglycan link protein, fibronectin, nidogen, α1-proteinase inhibitor, MBP, proTNF
MMP-10
Stromelysin-2
57,000
44,000
Collagens III, IV and V, gelatin, casein, aggrecan, elastin, proteoglycan link protein, fibronectin, proMMP-1, proMMP-8
MMP-11
Stromelysin-3
51,000
44,000
α1-proteinase inhibitor
MMP-12
Macrophage metalloelastase
54,000
45,000/ 22,000
Collagen IV, gelatin, elastin, α1-proteinase inhibitor, fibronectin, vitronectin, laminin, proTNF, MBP
MMP-13
Collagenase-3
60,000
48,000
Collagens I, II, III and IV, gelatin, plasminogen activator inhibitor 2, aggrecan, perlecan, tenascin
MMP-14
MT1-MMP
66,000
56,000
Collagens I, II and III, gelatin, casein, elastin, fibronectin, laminin B chain, vitronectin, aggrecan, dermatan sulfate proteoglycan, MMP-2, MMP-13, proTNF
MMP-15
MT2-MMP
72,000
60,000
proMMP-2, gelatin, fibronectin, tenascin, nidogen, laminin
MMP-16
MT3-MMP
64,000
52,000
proMMP-2
MMP-17
MT4-MMP
57,000
53,000

MMP-18
Xenopus collagenase
55,000
42,000

MMP-19

54,000
45,000
Collagen IV, gelatin, laminin, nidogen, tenascin, fibronectin, aggrecan, COMP
MMP-20
Enamelysin
54,000
22,000
Amelogenin
MMP-21
XMMP (xenopus)
70,000
53,000

MMP-22 (MMP-27)
CMMP (chicken)
52,000
43,000
Gelatin, casein
MMP-23
CA-MMP
?
?

MMP-24
MT5-MMP
63,000
45,000
proMMP-2, proMMP-9, gelatin
MMP-25
MT6-MMP, leukolysin

56,000
Collagen IV, gelatin, fibronectin, fibrin
MMP-26
Matrilysin-2, endometase
28,000

Collagen IV, fibronectin, fibrinogen, gelatin, α1-proteinase inhibitor, proMMP-9
MMP-28
Epilysin
59,000 (55,000)

Casein

α2-M, α2-macroglobulin; COMP, cartilage oligomeric matrix protein; MBP, myelin basic protein; Mr, relative molecular mass; TNF, tumour necrosis factor.

Murphy et al. Arthritis Res 2002 4(Suppl 3):S39   doi:10.1186/ar572