PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 22902860-0 2012 Degradation of the starch components amylopectin and amylose by barley alpha-amylase 1: role of surface binding site 2. Starch 19-25 LOC548210 Hordeum vulgare 71-86 7901200-0 1993 Site-directed mutagenesis of histidine 93, aspartic acid 180, glutamic acid 205, histidine 290, and aspartic acid 291 at the active site and tryptophan 279 at the raw starch binding site in barley alpha-amylase 1. Starch 167-173 LOC548210 Hordeum vulgare 197-212 25661878-8 2015 Taken together, the findings indicate that the two SBSs act in concert to localize AMY1 to the starch granule surface and that SBS2 works synergistically with the active site in the degradation of amylopectin. Starch 95-101 LOC548210 Hordeum vulgare 83-87 19606835-0 2009 Two secondary carbohydrate binding sites on the surface of barley alpha-amylase 1 have distinct functions and display synergy in hydrolysis of starch granules. Starch 143-149 LOC548210 Hordeum vulgare 66-81 19606835-5 2009 Compared to that of wild-type AMY1, the K(d) of starch granule binding by the SBS1 W278A, W279A, and W278A/W279A mutants thus increased 15-35 times; furthermore, the k(cat)/K(m) of W278A/W279A was 2%, whereas both affinity and activity for Y380A at SBS2 were 10% of the wild-type values. Starch 48-54 LOC548210 Hordeum vulgare 30-34 14660599-5 2004 Y105A dominates in dual subsite -6/+4 [Y105A/T212(Y/W)]AMY1 mutants having almost retained and low activity on starch and oligosaccharides, respectively. Starch 111-117 LOC548210 Hordeum vulgare 55-59 16403494-9 2006 Remarkably, at low concentration (2 nM), AMY1-SBD hydrolysed barley starch granules 15-fold faster than rAMY1, while higher amounts of AMY-SBD caused molecular overcrowding of the starch granule surface. Starch 68-74 LOC548210 Hordeum vulgare 41-45 16403494-9 2006 Remarkably, at low concentration (2 nM), AMY1-SBD hydrolysed barley starch granules 15-fold faster than rAMY1, while higher amounts of AMY-SBD caused molecular overcrowding of the starch granule surface. Starch 180-186 LOC548210 Hordeum vulgare 41-45 16403494-7 2006 AMY1-SBD showed a 2-fold increased activity for soluble starch at low (0.5%) but not at high (1%) concentration. Starch 56-62 LOC548210 Hordeum vulgare 0-4 12423336-4 2002 Compared to wild-type, Met53Glu/Asp AMY1 displayed 117/90% activity towards insoluble Blue Starch, and Met53Ala/Ser/Gly 76/58/38%, but Met53Tyr/Trp only 0.9/0.1%, even though both Asp and Trp occur frequently at this position in family 13. Starch 91-97 LOC548210 Hordeum vulgare 36-40 12906821-0 2003 Sugar tongs get a grip on the starch granule in barley alpha-amylase 1. Starch 30-36 LOC548210 Hordeum vulgare 55-70