large spiral organisms isolated from the rumen of cattle produced and released into the external environment a complex of pectinolytic enzymes , consisting mainly of poly ( 1,4-alpha-d-galacturonide ) lyase ( ec 4.2.2.2 , formerly ec 4.2.99.3 ) , most active at ph 8.0 to 9.0 , and another enzyme acting at ph below 7.0 , probably a poly ( 1,4-alpha-d-galacturonide ) glycanohydrolase ( ec 3.2.1.15 ) .
C0026741
complex
C0014442
enzyme