Gene Details:

• Gene ID: AT5G24300
• Gene Symbol: ATSS1, SS1
• Gene Name: STARCH SYNTHASE 1, starch synthase 1
• Description: Glycogen/starch synthases, ADP-glucose type;(source:Araport11)
• TAIR Accession:
• Genome: Araport11_genome_release
• Species: Arabidopsis thaliana

Transcripts:

• AT5G24300.1     AT5G24300.2

Plant Ontology Annotations:

• PO:0009005  — root — raíz (Spanish, exact), radices (exact, plural), radix (exact), 根 (Japanese, exact), aerial root (narrow), climbing root (narrow)
• PO:0000014  — rosette leaf — hoja en roseta (Spanish, exact), ロゼット葉 (Japanese, exact)
• PO:0009046  — flower — flor (Spanish, exact), 花 (Japanese, exact), floret (related), Asteraceae floret (narrow), basal flower (narrow), double flower (narrow), hermaphrodite flower (narrow), monoclinous flower (narrow), perfect flower (narrow)
• PO:0009047  — stem — caña (Spanish, exact), culm (exact), eje primario (Spanish, exact), primary axis (exact), primary stem (exact), tallo (Spanish, exact), tronco (Spanish, exact), 茎 (Japanese, exact), bole (narrow), cane (narrow), caudex (narrow), caudices (narrow), core (narrow), primocane (narrow), scape (narrow), stalk (narrow), trunk (narrow)
• PO:0009001  — fruit — frucht (exact, German), fruto (exact, Spanish), 果実 (exact, Japanese), coenocarp (narrow), syncarp (narrow), aggregate fruit (broad), compound fruit (broad), dehiscent fruit (broad), diaspore (broad), indehiscent fruit (broad), multiple fruit (broad), propagule (broad)
• PO:0009025  — vascular leaf — foliage leaf (exact), hoja vascular (Spanish, exact), leaf, vascular (exact), vascular leaves (exact, plural), 維管束のある葉, または維管束植物の葉 (Japanese, exact), crozier (related), macrophyll (related), megaphyll (related), ascidia (narrow), ascidium (narrow), fiddlehead (narrow), frond (narrow), needle-like leaf (narrow), pitcher (narrow), pitcher blade (narrow), pitcher-blade (narrow), scale-like leaf (narrow), sterile frond (narrow), trophophyll (narrow)
• PO:0000084  — plant sperm cell — célula espermática o esperma (Spanish, exact), male gamete (exact), microgamete (exact), 植物精子細胞 (Japanese, exact), sperm nucleus (related), sperm cell (broad)
• PO:0000293  — guard cell — célula guardiana (Spanish, exact), occlusive cell (exact), 孔辺細胞 (Japanese, exact)

Germplasm Phenotype:

• Atss1-1  — Germination percentages, rates of growth,flowering capacities and formation of siliques are the same for Atss1-1 as in the wildtype. Starch levels and structure: Interruption of the AtSS1 locus led to a near-23% decrease in leaf starch level. The amylose content increased from 19% of the total starch in the wild-type line to 31% in the mutant line. Amylopectin accumulation was decreased by about 33% in the mutant line. The amylopectin structure has been changed. CL distributions of wild type and mutant BLD are different and shows more chains of DP < 10 and less chains of 11 < DP < 24 in the mutant polysaccharide. The branching level of amylopectin remained unaffected

Function-related keywords:

• root ,  rosette leaf ,  flower ,  stem ,  fruit ,  root ,  vascular leaf ,  flower ,  plant sperm cell ,  guard cell

Literature:

• Soluble starch synthase I: a major determinant for the synthesis of amylopectin in Arabidopsis thaliana leaves.   DOI:  10.1111/j.1365-313X.2005.02462.x ;  PMID:  16045475
• The phenotype of soluble starch synthase IV defective mutants of Arabidopsis thaliana suggests a novel function of elongation enzymes in the control of starch granule formation.   DOI:  10.1111/j.1365-313X.2006.02968.x ;  PMID:  17217470
• Global analysis of Arabidopsis gene expression uncovers a complex array of changes impacting pathogen response and cell cycle during geminivirus infection.   DOI:  10.1104/pp.108.121038 ;  PMID:  18650403
• Overlapping functions of the starch synthases SSII and SSIII in amylopectin biosynthesis in Arabidopsis.   DOI:  10.1186/1471-2229-8-96 ;  PMID:  18811962
• Functional and geographical differentiation of candidate balanced polymorphisms in Arabidopsis thaliana.   DOI:  10.1111/j.1365-294X.2009.04206.x ;  PMID:  19457201
• Integrated functions among multiple starch synthases determine both amylopectin chain length and branch linkage location in Arabidopsis leaf starch.   DOI:  10.1093/jxb/err172 ;  PMID:  21624979
• Comprehensive survey of redox sensitive starch metabolising enzymes in Arabidopsis thaliana.   DOI:  10.1016/j.plaphy.2012.06.017 ;  PMID:  22789914
• Starch metabolism in Arabidopsis.   DOI:  10.1199/tab.0160 ;  PMID:  23393426
• Intraspecific sequence variation and differential expression in starch synthase genes of Arabidopsis thaliana.   DOI:  10.1186/1756-0500-6-84 ;  PMID:  23497496
• Tracking sulfur and phosphorus within single starch granules using synchrotron X-ray microfluorescence mapping.   DOI:  10.1016/j.bbagen.2013.08.029 ;  PMID:  24016601
• Branching patterns in leaf starches from Arabidopsis mutants deficient in diverse starch synthases.   DOI:  10.1016/j.carres.2014.09.011 ;  PMID:  25464087
• Sequence variation, differential expression, and divergent evolution in starch-related genes among accessions of Arabidopsis thaliana.   DOI:  10.1007/s11103-015-0293-2 ;  PMID:  25663508
• The Role of Cysteine Residues in Redox Regulation and Protein Stability of Arabidopsis thaliana Starch Synthase 1.   DOI:  10.1371/journal.pone.0136997 ;  PMID:  26367870
• Genetic Evidence That Chain Length and Branch Point Distributions Are Linked Determinants of Starch Granule Formation in Arabidopsis.   DOI:  10.1104/pp.114.241455 ;  PMID:  24965177
• Changes in the content of pollen total lipid and TAG in Arabidopsis thaliana DGAT1 mutant as11.   DOI:  10.1093/aobpla/plad012 ;  PMID:  37064996
• The Arabidopsis ssi1 mutation restores pathogenesis-related gene expression in npr1 plants and renders defensin gene expression salicylic acid dependent.   DOI:  10.1105/tpc.11.2.191 ;  PMID:  9927638
• A role for salicylic acid and NPR1 in regulating cell growth in Arabidopsis.   DOI:  10.1046/j.1365-313x.2001.01158.x ;  PMID:  11722764
• Ethylene and jasmonic acid signaling affect the NPR1-independent expression of defense genes without impacting resistance to Pseudomonas syringae and Peronospora parasitica in the Arabidopsis ssi1 mutant.   DOI:  10.1094/MPMI.2003.16.7.588 ;  PMID:  12848424
• Sorting signals, N-terminal modifications and abundance of the chloroplast proteome.   DOI:  10.1371/journal.pone.0001994 ;  PMID:  18431481
• Quantitative proteomics of a chloroplast SRP54 sorting mutant and its genetic interactions with CLPC1 in Arabidopsis.   DOI:  10.1104/pp.108.124545 ;  PMID:  18633119
• The oligomeric stromal proteome of Arabidopsis thaliana chloroplasts.   DOI:  10.1074/mcp.M500180-MCP200 ;  PMID:  16207701

Sequences: