Knowledge (XXG)

Cystathionine beta-lyase

Source đź“ť

263: 460: 665: 732: 577: 698: 2143: 750: 29: 808:
Studies have linked the anti-fungal activity of several anti-fungal agents to the inhibition of cystathionine beta-lyase; however, other studies have not observed enzyme inhibition by these. Further research is needed to characterize the full extent cystathionine beta-lyase inhibition has on
1054:
Messerschmidt A, Worbs M, Steegborn C, Wahl MC, Huber R, Laber B, Clausen T (March 2003). "Determinants of enzymatic specificity in the Cys-Met-metabolism PLP-dependent enzymes family: crystal structure of cystathionine gamma-lyase from yeast and intrafamiliar structure comparison".
496:
Contains most of the catalytically relevant residues on the enzyme. It is composed of α-helices and β-sheets with a distinct parallel seven-stranded β-sheet. These sheets form a curved structure around the PLP-binding helix. PLP is covalently attached to a lysine residue at the
746:, a time-dependent, slow-binding inhibition was observed. It is believed that the inhibitor binds to the enzyme in a similar way as the substrate; however, after the abstraction of the α-proton, the reaction proceeds to create an inactive ketimine PLP derivative. 1686:
Ejim LJ, Blanchard JE, Koteva KP, Sumerfield R, Elowe NH, Chechetto JD, Brown ED, Junop MS, Wright GD (February 2007). "Inhibitors of bacterial cystathionine beta-lyase: leads for new antimicrobial agents and probes of enzyme structure and function".
801:. Because of its necessity in DNA replication, inhibition of cystathionine beta-lyase is an attractive antibiotic target. Furthermore, the enzyme is absent in humans, decreasing the chance of harmful and unwanted 789:
Cystathionine beta-lyase catalyzes the production of homocysteine, a direct precursor to methionine. Methionine is an essential amino acid for bacteria that is required for protein synthesis and the synthesis of
693:
Cystathionine beta-lyase in plants exhibits a two-step mechanism inactivation process with AVG, in which a reversible enzyme-inhibitor complex is formed before the irreversible inactivation of the enzyme:
1530:
Clausen T, Huber R, Messerschmidt A, Pohlenz HD, Laber B (October 1997). "Slow-binding inhibition of Escherichia coli cystathionine beta-lyase by L-aminoethoxyvinylglycine: a kinetic and X-ray study".
1357:
Clausen T, Huber R, Laber B, Pohlenz HD, Messerschmidt A (September 1996). "Crystal structure of the pyridoxal-5'-phosphate dependent cystathionine beta-lyase from Escherichia coli at 1.83 A".
1098:
Alexander FW, Sandmeier E, Mehta PK, Christen P (February 1994). "Evolutionary relationships among pyridoxal-5'-phosphate-dependent enzymes. Regio-specific alpha, beta and gamma families".
1008:
Droux M, Ravanel S, Douce R (January 1995). "Methionine biosynthesis in higher plants. II. Purification and characterization of cystathionine beta-lyase from spinach chloroplasts".
1626:"Evolution in biosynthetic pathways: two enzymes catalyzing consecutive steps in methionine biosynthesis originate from a common ancestor and possess a similar regulatory region" 1788: 262: 194: 778: 1181:
Holbrook EL, Greene RC, Krueger JH (January 1990). "Purification and properties of cystathionine gamma-synthase from overproducing strains of Escherichia coli".
213: 521:
Aside from being bound to a lysine residue, PLP is fixed within the substrate binding site of the enzyme through various interactions with catalytic residues.
773:
counterpart and even higher homology (between 28% and 36%) with cystathionine Îł-synthase from plant and bacterial sources and cystathionine Îł-lyase from
463:
Cystathionine beta-lyase dimer. N-terminal domain shown in green, PLP-binding domain shown in red, and C-terminal domain shown in cyan. PDB entry: 4ITX
639:
The external aldimine is displaced by the nucleophilic attack of the lysine, regenerating the catalytically active internal aldimine and releasing
509:
Smallest domain on the enzyme, which is attached to the PLP-binding domain by a long, kinked α-helix. The domain is structured into four-stranded
1781: 580:
Key binding domain residues interacting with PLP. Residues belonging to the adjacent Arabidopsis CBL subunit are shown in blue. PDB entry: 1IBJ
488:. This domain contains residues that interact with the active site of the neighboring subunit to facilitate substrate and cofactor binding. 2168: 536:. This phosphate group is considered to be the main contributor to securing PLP in the active site. Additionally, residues neighboring the 2173: 573:
can be found in most PLP-dependent enzymes as it plays an important role in catalyzing the reaction by facilitating transaldimination.
825:
Dwivedi CM, Ragin RC, Uren JR (June 1982). "Cloning, purification, and characterization of beta-cystathionase from Escherichia coli".
1774: 1862: 1430:
Aitken SM, Lodha PH, Morneau DJ (November 2011). "The enzymes of the transsulfuration pathways: active-site characterizations".
206: 133: 2018: 157: 781:
and belong to the same class of PLP-dependent enzymes, suggesting that these enzymes were derived from a common ancestor.
2133: 609:, which abstracts a proton from the α-amino group of the substrate. In the next step, the deprotonated amine undergoes a 485: 433: 510: 1138:"Purification and properties of cystathionine beta-lyase from Arabidopsis thaliana overexpressed in Escherichia coli" 1491:"beta-Cystathionase from Bordetella avium. Role(s) of lysine 214 and cysteine residues in activity and cytotoxicity" 2003: 2119: 2106: 2093: 2080: 2067: 2054: 2041: 1819: 1811: 437: 356: 2013: 1967: 1910: 1802: 774: 429: 415: 234: 151: 44: 597:
cleavage in cystathionine with the use of a PLP cofactor bounded to a catalytic lysine residue. Initially, a
1915: 1829: 918:"The three-dimensional structure of cystathionine beta-lyase from Arabidopsis and its substrate specificity" 328: 138: 705: 449: 441: 1218:"Purification and Properties of Cystathionine [gamma]-Synthase from Wheat (Triticum aestivum L.)" 704:
Excess addition of cystathionine prevented the inactivation of the enzyme, suggesting that AVG acts as a
1936: 1855: 791: 743: 625: 348: 271: 218: 2008: 472:
The cystathionine beta-lyase monomer consists of three functionally and structurally distinct domains:
126: 1624:
Belfaiza J, Parsot C, Martel A, de la Tour CB, Margarita D, Cohen GN, Saint-Girons I (February 1986).
605:
optimum for the enzyme is between 8.0 and 9.0, a tyrosine residue in the catalytic pocket exists as a
1637: 1578: 916:
Breitinger U, Clausen T, Ehlert S, Huber R, Laber B, Schmidt F, Pohl E, Messerschmidt A (June 2001).
629: 61: 1972: 668:
Mechanism catalyzed by cystathionine beta-lyase. Cofactor and catalytic residues are shown in blue.
445: 360: 352: 324: 320: 279: 56: 459: 154: 1905: 1080: 766: 728:
Unlike in plants, Cystathionine beta-lyase in bacteria exhibits a one-step inhibition mechanism:
590: 453: 78: 976:
Clausen T, Laber B, Messerschmidt A (1997-03-01). "Mode of action of cystathionine beta-lyase".
636:. Subsequently, the protonation of S induces C-S bond cleavage, thereby releasing homocysteine 428:
Most of the enzyme's catalytic site residues are conserved amongst the enzymes involved in the
2163: 1753: 1704: 1665: 1606: 1547: 1512: 1447: 1412: 1374: 1334: 1296: 1247: 1198: 1163: 1115: 1072: 1025: 985: 947: 883: 842: 739: 664: 633: 384: 364: 316: 257: 145: 1951: 1946: 1920: 1848: 1743: 1735: 1696: 1655: 1645: 1596: 1586: 1539: 1502: 1439: 1404: 1366: 1326: 1286: 1278: 1237: 1229: 1190: 1153: 1145: 1107: 1064: 1017: 937: 929: 873: 834: 770: 713: 1998: 1982: 1895: 1314: 798: 753:
AVG bounded to catalytic PLP in the substrate binding site of E. coli CBL. PDB entry: 1CL2
731: 708:
with respect to cystathionine. Additionally, the enzyme has been shown to be sensitive to
544: 380: 336: 114: 1641: 1582: 90: 2147: 2036: 1977: 1748: 1723: 1291: 1266: 1158: 1137: 1111: 640: 407: 189: 49: 1660: 1625: 1330: 1242: 1217: 942: 917: 878: 861: 576: 169: 2157: 1941: 1900: 1601: 1566: 1408: 717: 678: 598: 594: 569:
sink character of the cofactor. These stacking interactions between PLP and aromatic
526: 411: 275: 164: 1317:(December 1998). "Structure, evolution and action of vitamin B6-dependent enzymes". 1084: 697: 1890: 548: 313: 287: 283: 323:. The enzyme belongs to the Îł-family of PLP-dependent enzymes due to its use of a 1443: 2114: 2049: 1885: 1766: 1397:
Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology
802: 762: 682: 658: 614: 610: 601:
amino group is needed to perform the transaldimination reaction. Given that the
559: 555: 423: 392: 173: 2142: 1630:
Proceedings of the National Academy of Sciences of the United States of America
1571:
Proceedings of the National Academy of Sciences of the United States of America
1739: 749: 655: 624:
The released lysine can now abstract the proton from the C and form a quinoid
570: 498: 481: 419: 399: 344: 310: 2088: 2062: 1591: 1507: 1490: 530: 253: 1757: 1708: 1567:"The specific features of methionine biosynthesis and metabolism in plants" 1451: 1370: 1282: 1251: 1076: 1021: 951: 887: 1669: 1650: 1610: 1551: 1516: 1416: 1378: 1338: 1300: 1267:"Modeling of the spatial structure of eukaryotic ornithine decarboxylases" 1233: 1202: 1167: 1119: 1029: 989: 846: 529:-containing residues are located in hydrogen bonding distance to the four 933: 647: 618: 566: 562: 540: 537: 388: 376: 302: 1194: 1068: 838: 644: 403: 291: 237: 121: 102: 1700: 1543: 1465: 1149: 730: 696: 456:
and active sites composed of residues belonging to adjacent subunits.
418:, whereas the tetramer is stabilized through interactions between the 261: 2101: 1871: 606: 533: 396: 249: 201: 97: 85: 73: 341:
L-cystathionine L-homocysteine-lyase (deaminating; pyruvate-forming)
677:
Plant and bacterial cystathionine beta-lyases are inhibited by the
2075: 1798: 748: 709: 663: 651: 575: 522: 332: 331:
to cleave cystathionine. The enzyme also belongs to the family of
306: 298: 109: 1844: 1770: 1395:
John RA (April 1995). "Pyridoxal phosphate-dependent enzymes".
28: 795: 565:
residue. It is believed that this configuration increases the
1724:"Inhibitors of amino acids biosynthesis as antifungal agents" 1432:
Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics
319:
as homocysteine can be directly converted into methionine by
602: 1840: 1216:
Kreft BD, Townsend A, Pohlenz HD, Laber B (April 1994).
335:, specifically the class of carbon-sulfur lyases. The 309:, cystathionine beta-lyase is an essential part of the 2131: 681:
amino acid, L-aminoethoxyvinylglycine (AVG), and the
1489:
Gentry-Weeks CR, Spokes J, Thompson J (March 1995).
1049: 1047: 1045: 1043: 1041: 1039: 593:
below, cystathionine beta-lyase facilitates the S-C
2027: 1991: 1960: 1929: 1878: 1810: 1265:Grishin NV, Phillips MA, Goldsmith EJ (July 1995). 212: 200: 188: 183: 163: 144: 132: 120: 108: 96: 84: 72: 67: 55: 43: 38: 21: 1565:Ravanel S, Gakière B, Job D, Douce R (June 1998). 911: 909: 907: 905: 903: 901: 899: 897: 1352: 1350: 1348: 452:(AAT) family, characterized by homodimers with 1131: 1129: 971: 969: 967: 965: 963: 961: 862:"Cystathionine Cleavage Enzymes of Neurospora" 266:Reaction catalyzed by cystathionine beta-lyase 1856: 1782: 794:; thus, the amino acid is directly linked to 632:of the negative charge over PLP's conjugated 8: 1722:JastrzÄ™bowska K, Gabriel I (February 2015). 1681: 1679: 1390: 1388: 1003: 1001: 999: 1136:Ravanel S, Job D, Douce R (December 1996). 777:. All of these enzymes are involved in the 444:. Additionally, these structures exhibit a 1863: 1849: 1841: 1789: 1775: 1767: 613:attack and displaces the lysine to form a 180: 1747: 1659: 1649: 1600: 1590: 1506: 1290: 1241: 1157: 941: 877: 33:Cystathionine beta-lyase tetramer, E.Coli 484:that contribute to the formation of the 458: 2138: 1010:Archives of Biochemistry and Biophysics 817: 765:cystathionine beta-lyase possesses 22% 558:in PLP is fixed in place by an almost 18: 1319:Current Opinion in Structural Biology 7: 480:Composed of three α-helices and one 387:of dimers, each associated with one 1495:The Journal of Biological Chemistry 866:The Journal of Biological Chemistry 860:Flavin M, Slaughter C (July 1964). 1112:10.1111/j.1432-1033.1994.tb18577.x 513:β-sheet with neighboring helices. 14: 2141: 1100:European Journal of Biochemistry 343:. This enzyme participates in 5 240:), also commonly referred to as 27: 1689:Journal of Medicinal Chemistry 712:-blocking inhibitors, such as 661:to form pyruvate and ammonia. 628:, which is facilitated by the 375:Cystathionine beta-lyase is a 256:the following α,β-elimination 1: 1331:10.1016/s0959-440x(98)80096-1 879:10.1016/S0021-9258(20)82222-4 809:microbial and fungal growth. 402:. The dimer is formed by two 1444:10.1016/j.bbapap.2011.03.006 1409:10.1016/0167-4838(95)00025-p 1359:Journal of Molecular Biology 779:Cys/Met biosynthetic pathway 434:cystathionine gamma-synthase 2169:Pyridoxal phosphate enzymes 1144:. 320 ( Pt 2) (2): 383–92. 685:amino acid, rhizobitoxine. 406:associated through several 357:selenoamino acid metabolism 2190: 2174:Enzymes of known structure 543:in PLP help stabilize its 450:aspartate aminotransferase 383:, and is constructed as a 2019:Michaelis–Menten kinetics 1820:Cystathionine gamma-lyase 1740:10.1007/s00726-014-1873-1 547:, thereby increasing its 438:cystathionine gamma-lyase 179: 26: 1911:Diffusion-limited enzyme 1825:Cystathionine beta-lyase 775:Saccharomyces cerevisiae 432:. Other members include 430:transsulfuration pathway 416:hydrophobic interactions 339:of this enzyme class is 231:Cystathionine beta-lyase 22:cystathionine beta-lyase 1830:Leukotriene C4 synthase 1592:10.1073/pnas.95.13.7805 1508:10.1074/jbc.270.13.7695 1142:The Biochemical Journal 1466:"ENZYME entry 4.4.1.8" 1371:10.1006/jmbi.1996.0508 1283:10.1002/pro.5560040705 1022:10.1006/abbi.1995.1078 754: 735: 701: 669: 617:, forming an internal 581: 464: 442:methionine gamma lyase 379:composed of identical 325:pyridoxal-5'-phosphate 267: 2004:Eadie–Hofstee diagram 1937:Allosteric regulation 1651:10.1073/pnas.83.4.867 1234:10.1104/pp.104.4.1215 752: 744:X-ray crystallography 734: 706:competitive inhibitor 700: 667: 579: 462: 349:methionine metabolism 265: 2014:Lineweaver–Burk plot 1057:Biological Chemistry 978:Biological Chemistry 934:10.1104/pp.126.2.631 792:S-adenosylmethionine 785:Industrial relevance 486:quaternary structure 391:of PLP bound to the 1642:1986PNAS...83..867B 1583:1998PNAS...95.7805R 1195:10.1021/bi00454a019 1069:10.1515/BC.2003.043 839:10.1021/bi00256a005 361:nitrogen metabolism 353:cysteine metabolism 321:methionine synthase 274:of this enzyme is 1973:Enzyme superfamily 1906:Enzyme promiscuity 755: 736: 702: 670: 582: 492:PLP-binding domain 465: 448:and belong to the 345:metabolic pathways 268: 2129: 2128: 1838: 1837: 1701:10.1021/jm061132r 1544:10.1021/bi970630m 1470:enzyme.expasy.org 1150:10.1042/bj3200383 505:C-terminal domain 476:N-terminal domain 454:dihedral symmetry 365:sulfur metabolism 228: 227: 224: 223: 127:metabolic pathway 2181: 2146: 2145: 2137: 2009:Hanes–Woolf plot 1952:Enzyme activator 1947:Enzyme inhibitor 1921:Enzyme catalysis 1865: 1858: 1851: 1842: 1791: 1784: 1777: 1768: 1762: 1761: 1751: 1719: 1713: 1712: 1683: 1674: 1673: 1663: 1653: 1621: 1615: 1614: 1604: 1594: 1562: 1556: 1555: 1538:(41): 12633–43. 1527: 1521: 1520: 1510: 1501:(13): 7695–702. 1486: 1480: 1479: 1477: 1476: 1462: 1456: 1455: 1427: 1421: 1420: 1392: 1383: 1382: 1354: 1343: 1342: 1311: 1305: 1304: 1294: 1262: 1256: 1255: 1245: 1228:(4): 1215–1220. 1222:Plant Physiology 1213: 1207: 1206: 1178: 1172: 1171: 1161: 1133: 1124: 1123: 1095: 1089: 1088: 1051: 1034: 1033: 1005: 994: 993: 973: 956: 955: 945: 922:Plant Physiology 913: 892: 891: 881: 857: 851: 850: 822: 771:Escherichia coli 714:N-ethylmaleimide 589:As shown in the 422:domains and key 412:hydrogen bonding 278:, whereas its 3 181: 31: 19: 2189: 2188: 2184: 2183: 2182: 2180: 2179: 2178: 2154: 2153: 2152: 2140: 2132: 2130: 2125: 2037:Oxidoreductases 2023: 1999:Enzyme kinetics 1987: 1983:List of enzymes 1956: 1925: 1896:Catalytic triad 1874: 1869: 1839: 1834: 1806: 1795: 1765: 1721: 1720: 1716: 1685: 1684: 1677: 1623: 1622: 1618: 1577:(13): 7805–12. 1564: 1563: 1559: 1529: 1528: 1524: 1488: 1487: 1483: 1474: 1472: 1464: 1463: 1459: 1429: 1428: 1424: 1394: 1393: 1386: 1356: 1355: 1346: 1313: 1312: 1308: 1277:(7): 1291–304. 1271:Protein Science 1264: 1263: 1259: 1215: 1214: 1210: 1180: 1179: 1175: 1135: 1134: 1127: 1097: 1096: 1092: 1053: 1052: 1037: 1007: 1006: 997: 975: 974: 959: 915: 914: 895: 859: 858: 854: 824: 823: 819: 815: 787: 760: 740:kinetic methods 726: 691: 675: 654:that undergoes 587: 545:positive charge 519: 507: 494: 478: 470: 373: 337:systematic name 276:L-cystathionine 252:that primarily 246:β-cystathionase 34: 17: 12: 11: 5: 2187: 2185: 2177: 2176: 2171: 2166: 2156: 2155: 2151: 2150: 2127: 2126: 2124: 2123: 2110: 2097: 2084: 2071: 2058: 2045: 2031: 2029: 2025: 2024: 2022: 2021: 2016: 2011: 2006: 2001: 1995: 1993: 1989: 1988: 1986: 1985: 1980: 1975: 1970: 1964: 1962: 1961:Classification 1958: 1957: 1955: 1954: 1949: 1944: 1939: 1933: 1931: 1927: 1926: 1924: 1923: 1918: 1913: 1908: 1903: 1898: 1893: 1888: 1882: 1880: 1876: 1875: 1870: 1868: 1867: 1860: 1853: 1845: 1836: 1835: 1833: 1832: 1827: 1822: 1816: 1814: 1808: 1807: 1797:Carbon–sulfur 1796: 1794: 1793: 1786: 1779: 1771: 1764: 1763: 1714: 1675: 1616: 1557: 1522: 1481: 1457: 1438:(11): 1511–7. 1422: 1384: 1344: 1306: 1257: 1208: 1173: 1125: 1090: 1035: 995: 984:(3–4): 321–6. 957: 893: 852: 833:(13): 3064–9. 816: 814: 811: 786: 783: 759: 756: 725: 722: 690: 687: 674: 671: 643:. Lastly, the 641:dehydroalanine 630:delocalization 586: 583: 518: 517:Catalytic site 515: 506: 503: 501:of the sheet. 493: 490: 477: 474: 469: 466: 393:catalytic site 372: 369: 226: 225: 222: 221: 216: 210: 209: 204: 198: 197: 192: 186: 185: 177: 176: 167: 161: 160: 149: 142: 141: 136: 130: 129: 124: 118: 117: 112: 106: 105: 100: 94: 93: 88: 82: 81: 76: 70: 69: 65: 64: 59: 53: 52: 47: 41: 40: 36: 35: 32: 24: 23: 15: 13: 10: 9: 6: 4: 3: 2: 2186: 2175: 2172: 2170: 2167: 2165: 2162: 2161: 2159: 2149: 2144: 2139: 2135: 2121: 2117: 2116: 2111: 2108: 2104: 2103: 2098: 2095: 2091: 2090: 2085: 2082: 2078: 2077: 2072: 2069: 2065: 2064: 2059: 2056: 2052: 2051: 2046: 2043: 2039: 2038: 2033: 2032: 2030: 2026: 2020: 2017: 2015: 2012: 2010: 2007: 2005: 2002: 2000: 1997: 1996: 1994: 1990: 1984: 1981: 1979: 1978:Enzyme family 1976: 1974: 1971: 1969: 1966: 1965: 1963: 1959: 1953: 1950: 1948: 1945: 1943: 1942:Cooperativity 1940: 1938: 1935: 1934: 1932: 1928: 1922: 1919: 1917: 1914: 1912: 1909: 1907: 1904: 1902: 1901:Oxyanion hole 1899: 1897: 1894: 1892: 1889: 1887: 1884: 1883: 1881: 1877: 1873: 1866: 1861: 1859: 1854: 1852: 1847: 1846: 1843: 1831: 1828: 1826: 1823: 1821: 1818: 1817: 1815: 1813: 1809: 1804: 1800: 1792: 1787: 1785: 1780: 1778: 1773: 1772: 1769: 1759: 1755: 1750: 1745: 1741: 1737: 1734:(2): 227–49. 1733: 1729: 1725: 1718: 1715: 1710: 1706: 1702: 1698: 1695:(4): 755–64. 1694: 1690: 1682: 1680: 1676: 1671: 1667: 1662: 1657: 1652: 1647: 1643: 1639: 1636:(4): 867–71. 1635: 1631: 1627: 1620: 1617: 1612: 1608: 1603: 1598: 1593: 1588: 1584: 1580: 1576: 1572: 1568: 1561: 1558: 1553: 1549: 1545: 1541: 1537: 1533: 1526: 1523: 1518: 1514: 1509: 1504: 1500: 1496: 1492: 1485: 1482: 1471: 1467: 1461: 1458: 1453: 1449: 1445: 1441: 1437: 1433: 1426: 1423: 1418: 1414: 1410: 1406: 1402: 1398: 1391: 1389: 1385: 1380: 1376: 1372: 1368: 1365:(2): 202–24. 1364: 1360: 1353: 1351: 1349: 1345: 1340: 1336: 1332: 1328: 1325:(6): 759–69. 1324: 1320: 1316: 1315:Jansonius, JN 1310: 1307: 1302: 1298: 1293: 1288: 1284: 1280: 1276: 1272: 1268: 1261: 1258: 1253: 1249: 1244: 1239: 1235: 1231: 1227: 1223: 1219: 1212: 1209: 1204: 1200: 1196: 1192: 1189:(2): 435–42. 1188: 1184: 1177: 1174: 1169: 1165: 1160: 1155: 1151: 1147: 1143: 1139: 1132: 1130: 1126: 1121: 1117: 1113: 1109: 1106:(3): 953–60. 1105: 1101: 1094: 1091: 1086: 1082: 1078: 1074: 1070: 1066: 1063:(3): 373–86. 1062: 1058: 1050: 1048: 1046: 1044: 1042: 1040: 1036: 1031: 1027: 1023: 1019: 1016:(1): 585–95. 1015: 1011: 1004: 1002: 1000: 996: 991: 987: 983: 979: 972: 970: 968: 966: 964: 962: 958: 953: 949: 944: 939: 935: 931: 928:(2): 631–42. 927: 923: 919: 912: 910: 908: 906: 904: 902: 900: 898: 894: 889: 885: 880: 875: 872:(7): 2212–9. 871: 867: 863: 856: 853: 848: 844: 840: 836: 832: 828: 821: 818: 812: 810: 806: 804: 800: 797: 793: 784: 782: 780: 776: 772: 768: 764: 757: 751: 747: 745: 741: 733: 729: 723: 721: 719: 718:iodoacetamide 715: 711: 707: 699: 695: 688: 686: 684: 683:antibacterial 680: 679:antimicrobial 672: 666: 662: 660: 657: 653: 649: 646: 642: 637: 635: 631: 627: 622: 620: 616: 612: 608: 604: 600: 596: 592: 584: 578: 574: 572: 568: 564: 561: 557: 556:aromatic ring 552: 550: 549:electrophilic 546: 542: 539: 535: 532: 528: 524: 516: 514: 512: 504: 502: 500: 491: 489: 487: 483: 475: 473: 467: 461: 457: 455: 451: 447: 443: 439: 435: 431: 426: 425: 421: 417: 413: 409: 408:electrostatic 405: 401: 398: 394: 390: 386: 382: 378: 370: 368: 366: 362: 358: 354: 350: 346: 342: 338: 334: 330: 326: 322: 318: 315: 312: 308: 304: 300: 295: 293: 289: 285: 281: 277: 273: 264: 260: 259: 255: 251: 247: 243: 239: 236: 232: 220: 217: 215: 211: 208: 205: 203: 199: 196: 193: 191: 187: 182: 178: 175: 171: 168: 166: 165:Gene Ontology 162: 159: 156: 153: 150: 147: 143: 140: 137: 135: 131: 128: 125: 123: 119: 116: 113: 111: 107: 104: 103:NiceZyme view 101: 99: 95: 92: 89: 87: 83: 80: 77: 75: 71: 66: 63: 60: 58: 54: 51: 48: 46: 42: 37: 30: 25: 20: 2115:Translocases 2112: 2099: 2086: 2073: 2060: 2050:Transferases 2047: 2034: 1891:Binding site 1824: 1731: 1727: 1717: 1692: 1688: 1633: 1629: 1619: 1574: 1570: 1560: 1535: 1532:Biochemistry 1531: 1525: 1498: 1494: 1484: 1473:. Retrieved 1469: 1460: 1435: 1431: 1425: 1403:(2): 81–96. 1400: 1396: 1362: 1358: 1322: 1318: 1309: 1274: 1270: 1260: 1225: 1221: 1211: 1186: 1183:Biochemistry 1182: 1176: 1141: 1103: 1099: 1093: 1060: 1056: 1013: 1009: 981: 977: 925: 921: 869: 865: 855: 830: 827:Biochemistry 826: 820: 807: 803:side effects 788: 761: 737: 727: 703: 692: 676: 648:tautomerizes 638: 626:intermediate 623: 611:nucleophilic 599:deprotonated 588: 553: 520: 511:antiparallel 508: 495: 479: 471: 427: 374: 340: 314:biosynthesis 296: 284:homocysteine 269: 245: 241: 230: 229: 91:BRENDA entry 1886:Active site 1728:Amino Acids 799:replication 763:Arabidopsis 659:deamination 615:Schiff base 571:side chains 551:character. 482:beta-strand 446:type I fold 79:IntEnz view 39:Identifiers 2158:Categories 2089:Isomerases 2063:Hydrolases 1930:Regulation 1475:2017-03-09 813:References 673:Inhibition 656:hydrolytic 499:C-terminus 424:α-helices. 420:N-terminal 311:methionine 270:Thus, the 148:structures 115:KEGG entry 62:9055-05-4 1968:EC number 769:with its 758:Evolution 607:phenolate 591:mechanism 585:Mechanism 531:phosphate 371:Structure 297:Found in 272:substrate 254:catalyzes 68:Databases 2164:EC 4.4.1 1992:Kinetics 1916:Cofactor 1879:Activity 1758:25408465 1709:17300162 1452:21435402 1252:12232160 1085:24552794 1077:12715888 952:11402193 888:14209950 767:homology 738:Through 724:Bacteria 650:into an 634:p-system 619:aldimine 567:electron 563:tyrosine 560:coplanar 541:nitrogen 538:pyridine 527:hydroxyl 404:monomers 389:molecule 381:subunits 377:tetramer 329:cofactor 303:bacteria 288:pyruvate 280:products 258:reaction 248:, is an 219:proteins 207:articles 195:articles 152:RCSB PDB 2148:Biology 2102:Ligases 1872:Enzymes 1749:4302243 1670:3513164 1638:Bibcode 1611:9636232 1579:Bibcode 1552:9376370 1517:7706318 1417:7748903 1379:8831789 1339:9914259 1301:7670372 1292:2143167 1203:2405903 1168:8973544 1159:1217943 1120:8112347 1030:7840670 990:9165088 847:7049234 645:enamine 534:oxygens 468:Monomer 400:residue 317:pathway 292:ammonia 238:4.4.1.8 174:QuickGO 139:profile 122:MetaCyc 57:CAS no. 50:4.4.1.8 2134:Portal 2076:Lyases 1799:lyases 1756:  1746:  1707:  1668:  1661:322971 1658:  1609:  1599:  1550:  1515:  1450:  1415:  1377:  1337:  1299:  1289:  1250:  1243:159283 1240:  1201:  1166:  1156:  1118:  1083:  1075:  1028:  988:  950:  943:111155 940:  886:  845:  689:Plants 525:- and 440:, and 414:, and 397:lysine 363:, and 333:lyases 327:(PLP) 305:, and 299:plants 290:, and 250:enzyme 202:PubMed 184:Search 170:AmiGO 158:PDBsum 98:ExPASy 86:BRENDA 74:IntEnz 45:EC no. 16:Enzyme 2028:Types 1812:4.4.1 1602:22764 1081:S2CID 710:thiol 652:imine 523:Amine 395:by a 385:dimer 307:yeast 134:PRIAM 2120:list 2113:EC7 2107:list 2100:EC6 2094:list 2087:EC5 2081:list 2074:EC4 2068:list 2061:EC3 2055:list 2048:EC2 2042:list 2035:EC1 1805:4.4) 1754:PMID 1705:PMID 1666:PMID 1607:PMID 1548:PMID 1513:PMID 1448:PMID 1436:1814 1413:PMID 1401:1248 1375:PMID 1335:PMID 1297:PMID 1248:PMID 1199:PMID 1164:PMID 1116:PMID 1073:PMID 1026:PMID 986:PMID 948:PMID 884:PMID 843:PMID 742:and 716:and 595:bond 554:The 282:are 214:NCBI 155:PDBe 110:KEGG 1744:PMC 1736:doi 1697:doi 1656:PMC 1646:doi 1597:PMC 1587:doi 1540:doi 1503:doi 1499:270 1440:doi 1405:doi 1367:doi 1363:262 1327:doi 1287:PMC 1279:doi 1238:PMC 1230:doi 1226:104 1191:doi 1154:PMC 1146:doi 1108:doi 1104:219 1065:doi 1061:384 1018:doi 1014:316 982:378 938:PMC 930:doi 926:126 874:doi 870:239 835:doi 796:DNA 244:or 242:CBL 190:PMC 146:PDB 2160:: 1803:EC 1752:. 1742:. 1732:47 1730:. 1726:. 1703:. 1693:50 1691:. 1678:^ 1664:. 1654:. 1644:. 1634:83 1632:. 1628:. 1605:. 1595:. 1585:. 1575:95 1573:. 1569:. 1546:. 1536:36 1534:. 1511:. 1497:. 1493:. 1468:. 1446:. 1434:. 1411:. 1399:. 1387:^ 1373:. 1361:. 1347:^ 1333:. 1321:. 1295:. 1285:. 1273:. 1269:. 1246:. 1236:. 1224:. 1220:. 1197:. 1187:29 1185:. 1162:. 1152:. 1140:. 1128:^ 1114:. 1102:. 1079:. 1071:. 1059:. 1038:^ 1024:. 1012:. 998:^ 980:. 960:^ 946:. 936:. 924:. 920:. 896:^ 882:. 868:. 864:. 841:. 831:21 829:. 805:. 720:. 621:. 603:pH 436:, 410:, 367:. 359:, 355:, 351:, 347:: 301:, 294:. 286:, 235:EC 172:/ 2136:: 2122:) 2118:( 2109:) 2105:( 2096:) 2092:( 2083:) 2079:( 2070:) 2066:( 2057:) 2053:( 2044:) 2040:( 1864:e 1857:t 1850:v 1801:( 1790:e 1783:t 1776:v 1760:. 1738:: 1711:. 1699:: 1672:. 1648:: 1640:: 1613:. 1589:: 1581:: 1554:. 1542:: 1519:. 1505:: 1478:. 1454:. 1442:: 1419:. 1407:: 1381:. 1369:: 1341:. 1329:: 1323:8 1303:. 1281:: 1275:4 1254:. 1232:: 1205:. 1193:: 1170:. 1148:: 1122:. 1110:: 1087:. 1067:: 1032:. 1020:: 992:. 954:. 932:: 890:. 876:: 849:. 837:: 233:(

Index


EC no.
4.4.1.8
CAS no.
9055-05-4
IntEnz
IntEnz view
BRENDA
BRENDA entry
ExPASy
NiceZyme view
KEGG
KEGG entry
MetaCyc
metabolic pathway
PRIAM
profile
PDB
RCSB PDB
PDBe
PDBsum
Gene Ontology
AmiGO
QuickGO
PMC
articles
PubMed
articles
NCBI
proteins

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.

↑