Gene Details:

• Gene ID: AT2G31810
• Gene Symbol: AHASS1, AIP1
• Gene Name: acetolactate synthase small subunit 1, ALS-INTERACTING PROTEIN1
• Description: ACT domain-containing small subunit of acetolactate synthase protein;(source:Araport11)
• TAIR Accession: locus:2045248
• Genome: Araport11_genome_release
• Species: Arabidopsis thaliana

Transcripts:

• AT2G31810.1     AT2G31810.3     AT2G31810.2

Plant Ontology Annotations:

• PO:0000037  — shoot axis apex — ápice del epiblasto (epiblastema) (Spanish, exact), シュート頂、茎頂 (Japanese, exact)
• PO:0008019  — leaf lamina base — base de la lámina de la hoja (Spanish, exact), 葉身基部 (Japanese, exact)
• PO:0009005  — root — raíz (Spanish, exact), radices (exact, plural), radix (exact), 根 (Japanese, exact), aerial root (narrow), climbing root (narrow)
• PO:0009006  — shoot system — sistema de epiblasto (epiblastema) (Spanish, exact), シュート系、苗条系 (Japanese, exact), Poaceae crown (related), shoot (related), thalli (related), thallus (related), tree crown (narrow)
• PO:0009009  — plant embryo — embrión (Spanish, exact), 植物胚 (Japanese, exact), germ (related), embryo (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:0009029  — stamen — estambre (Spanish, exact), 雄蕊 (Japanese, exact), Poaceae stamen (narrow), Zea stamen (narrow)
• PO:0009031  — sepal — sépalo (Spanish, exact), がく片 (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:0009052  — inflorescence flower pedicel — 小花柄 (Japanese, related), pedicelo (Spanish, broad)
• PO:0020030  — cotyledon — cotiledón (Spanish, exact), seed leaf (exact), 子葉 (Japanese, exact)
• PO:0020038  — petiole — pecíolo (Spanish, exact), 葉柄 (Japanese, exact)
• PO:0020100  — hypocotyl — hipocótile (Spanish, exact), 胚軸 (Japanese, exact)
• PO:0020137  — leaf apex — ápice de la hoja (Spanish, exact), 葉先 (Japanese, exact), leaf lamina apex (narrow), phyllid apex (narrow)
• PO:0025022  — collective leaf structure — estructura colectiva de hoja (Spanish, exact), leaf series (exact), 葉が集まった構造 (Japanese, exact), leaf whorl (narrow), rosette (narrow), cycle (broad), verticil (broad)
• PO:0025281  — pollen — polen (Spanish, exact), pollen grain (exact), 花粉 (Japanese, exact)
• 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:0020003  — plant ovule — óvulo vegetal (Spanish, exact), 胚珠 (Japanese, exact), Poaceae ovule (narrow), Zea ovule (narrow)

Gene Ontology:

• GO:0009099  — acts upstream of or within — valine biosynthetic process
• GO:0009097  — involved in — isoleucine biosynthetic process
• GO:0001666  — involved in — response to hypoxia
• GO:0005829  — is active in — cytosol
• GO:0009099  — involved in — valine biosynthetic process
• GO:0009082  — acts upstream of or within — branched-chain amino acid biosynthetic process
• GO:0043621  — enables — protein self-association
• GO:0009507  — located in — chloroplast
• GO:1990610  — enables — acetolactate synthase regulator activity
• GO:0005515  — enables — protein binding
• GO:0003984  — enables — acetolactate synthase activity
• GO:0005777  — located in — peroxisome

Germplasm Phenotype:

• CS69739  — Increased free Val in two week-old seedlings
• CS69740  — Increased free Val in two week-old seedlings
• CS69745  — Homozygous double mutant is lethal. ahass1-2/ahass1-2 ahass2-1/AHASS2 mutant seedlings (two-week-old) show increased levels of all BCAAs.
• CS69746  — Homozygous double mutant is lethal. ahass1-1/ahass1-1 ahass2-1/AHASS2 mutant seedlings (two-week-old) show increased levels of all BCAAs.
• SALK_096207C  — No obvious morphological phenotype of single homozygous mutant.
• aip1/AIP1 aip3/aip3  — Plants segregate for aborted ovules. Cannot recover the aip1/aip3 double homozygote.

Function-related keywords:

• shoot axis apex ,  leaf lamina base ,  root ,  shoot system ,  plant embryo ,  vascular leaf ,  stamen ,  sepal ,  flower ,  inflorescence flower pedicel ,  cotyledon ,  petiole ,  hypocotyl ,  leaf apex ,  collective leaf structure ,  pollen ,  plant sperm cell ,  plant ovule

Literature:

• Cloning and functional expression of the small subunit of acetolactate synthase from Nicotiana plumbaginifolia.   DOI:  10.1023/a:1006273224977 ;  PMID:  10487214
• Inactivation of the chloroplast ATP synthase gamma subunit results in high non-photochemical fluorescence quenching and altered nuclear gene expression in Arabidopsis thaliana.   DOI:  10.1074/jbc.M308435200 ;  PMID:  14576160
• Monitoring expression profiles of Arabidopsis genes during cold acclimation and deacclimation using DNA microarrays.   DOI:  10.1007/s10142-005-0014-z ;  PMID:  16463051
• The early dark-response in Arabidopsis thaliana revealed by cDNA microarray analysis.   DOI:  10.1007/s11103-005-4211-x ;  PMID:  16514558
• Principal transcriptional programs regulating plant amino acid metabolism in response to abiotic stresses.   DOI:  10.1104/pp.108.115733 ;  PMID:  18375600
• Expression-based discovery of candidate ovule development regulators through transcriptional profiling of ovule mutants.   DOI:  10.1186/1471-2229-9-29 ;  PMID:  19291320
• Coordinations between gene modules control the operation of plant amino acid metabolic networks.   DOI:  10.1186/1752-0509-3-14 ;  PMID:  19171064
• From dusk till dawn: the Arabidopsis thaliana sugar starving responsive network.   DOI:  10.3389/fpls.2014.00482 ;  PMID:  25295047
• Acetolactate synthase regulatory subunits play divergent and overlapping roles in branched-chain amino acid synthesis and Arabidopsis development.   DOI:  10.1186/s12870-017-1022-6 ;  PMID:  28388946
• A Regulatory Hierarchy of the Arabidopsis Branched-Chain Amino Acid Metabolic Network.   DOI:  10.1105/tpc.17.00186 ;  PMID:  28522547
• AIP1, Encoding the Small Subunit of Acetolactate Synthase, Is Partially Responsible for Resistance to Hypoxic Stress in Arabidopsis thaliana.   DOI:  10.3390/plants10112251 ;  PMID:  34834615
• Cloning and functional expression of the small subunit of acetolactate synthase from Nicotiana plumbaginifolia.   DOI:  10.1023/a:1006273224977 ;  PMID:  10487214
• Sorting signals, N-terminal modifications and abundance of the chloroplast proteome.   DOI:  10.1371/journal.pone.0001994 ;  PMID:  18431481
• Sorting signals, N-terminal modifications and abundance of the chloroplast proteome.   DOI:  10.1371/journal.pone.0001994 ;  PMID:  18431481
• Sorting signals, N-terminal modifications and abundance of the chloroplast proteome.   DOI:  10.1371/journal.pone.0001994 ;  PMID:  18431481

Sequences: