Gene Details:

• Gene ID: AT2G38290
• Gene Symbol: AMT2, AMT2;1, ATAMT2
• Gene Name: ammonium transporter 2, AMMONIUM TRANSPORTER 2;1, ammonium transporter 2
• Description: ammonium transporter 2;(source:Araport11)
• TAIR Accession: locus:2042917
• Genome: Araport11_genome_release
• Species: Arabidopsis thaliana

Transcripts:

• AT2G38290.1     AT2G38290.2

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)

Gene Ontology:

• GO:0005886  — located in — plasma membrane
• GO:0015398  — enables — high-affinity secondary active ammonium transmembrane transporter activity
• GO:0072488  — involved in — ammonium transmembrane transport
• GO:0005886  — is active in — plasma membrane
• GO:0009624  — acts upstream of or within — response to nematode
• GO:0009506  — located in — plasmodesma
• GO:0008519  — enables — ammonium transmembrane transporter activity
• GO:0005737  — located in — cytoplasm

Germplasm Phenotype:

• amt2;1-1  — This mutant was used to construct a quadruple mutant: amt1;1-1, amt1;2-1, amt1;3-1, amt2;1-1. When this qko (quadruple knockout) was compared with a triple knockout with WT AMT2;1, it provided little evidence for a role of AMT2;1 in ammonium uptake in Arabidopsis roots.

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 ,  root ,  plant sperm cell

Literature:

• The molecular physiology of ammonium uptake and retrieval.   DOI:  S1369-5266(00)00073-X ;  PMID:  10837267
• Characterization of Arabidopsis AtAMT2, a novel ammonium transporter in plants.   DOI:  10.1016/s0014-5793(00)01153-4 ;  PMID:  10675553
• Functional analysis of an Arabidopsis T-DNA "knockout" of the high-affinity NH4(+) transporter AtAMT1;1.   DOI:  10.1104/pp.102.010843 ;  PMID:  12427993
• Characterization of Arabidopsis AtAMT2, a high-affinity ammonium transporter of the plasma membrane.   DOI:  10.1104/pp.008599 ;  PMID:  12481062
• Molecular and cellular characterisation of LjAMT2;1, an ammonium transporter from the model legume Lotus japonicus.   DOI:  10.1023/a:1020710222298 ;  PMID:  12602894
• The Arabidopsis root transcriptome by serial analysis of gene expression. Gene identification using the genome sequence.   DOI:  10.1104/pp.103.030536 ;  PMID:  14730065
• Transcriptional profiling of genes responsive to abscisic acid and gibberellin in rice: phenotyping and comparative analysis between rice and Arabidopsis.   DOI:  10.1152/physiolgenomics.00201.2003 ;  PMID:  14982972
• EMBRYONIC FACTOR 1 encodes an AMP deaminase and is essential for the zygote to embryo transition in Arabidopsis.   DOI:  10.1111/j.1365-313X.2005.02411.x ;  PMID:  15918887
• Nitrate-dependent control of root architecture and N nutrition are altered by a plant growth-promoting Phyllobacterium sp.   DOI:  10.1007/s00425-005-0106-y ;  PMID:  16160849
• Nematode-induced changes of transporter gene expression in Arabidopsis roots.   DOI:  10.1094/MPMI-18-1247 ;  PMID:  16478044
• Additive contribution of AMT1;1 and AMT1;3 to high-affinity ammonium uptake across the plasma membrane of nitrogen-deficient Arabidopsis roots.   DOI:  10.1111/j.1365-313X.2006.02887.x ;  PMID:  17026539
• An integrated view of gene expression and solute profiles of Arabidopsis tumors: a genome-wide approach.   DOI:  10.1105/tpc.106.044743 ;  PMID:  17172353
• The organization of high-affinity ammonium uptake in Arabidopsis roots depends on the spatial arrangement and biochemical properties of AMT1-type transporters.   DOI:  10.1105/tpc.107.052134 ;  PMID:  17693533
• Genome-wide analysis of Arabidopsis responsive transcriptome to nitrogen limitation and its regulation by the ubiquitin ligase gene NLA.   DOI:  10.1007/s11103-007-9241-0 ;  PMID:  17885809
• The transcriptional repressor ARR1-SRDX suppresses pleiotropic cytokinin activities in Arabidopsis.   DOI:  10.1104/pp.107.115436 ;  PMID:  18502977
• Transcriptional profiling of mature Arabidopsis trichomes reveals that NOECK encodes the MIXTA-like transcriptional regulator MYB106.   DOI:  10.1104/pp.108.126979 ;  PMID:  18805951
• Channel-like NH3 flux by ammonium transporter AtAMT2.   DOI:  10.1016/j.febslet.2009.07.039 ;  PMID:  19635480
• Ammonium triggers lateral root branching in Arabidopsis in an AMMONIUM TRANSPORTER1;3-dependent manner.   DOI:  10.1105/tpc.110.076216 ;  PMID:  21119058
• Nitrogen remobilization during leaf senescence: lessons from Arabidopsis to crops.   DOI:  10.1093/jxb/erw365 ;  PMID:  27707774
• A Critical Role of AMT2;1 in Root-To-Shoot Translocation of Ammonium in Arabidopsis.   DOI:  10.1016/j.molp.2017.10.001 ;  PMID:  29032248
• The plant defensin gene AtPDF2.1 mediates ammonium metabolism by regulating glutamine synthetase activity in Arabidopsis thaliana.   DOI:  10.1186/s12870-019-2183-2 ;  PMID:  31842759
• Quantitative phosphoproteomics of early elicitor signaling in Arabidopsis.   DOI:  10.1074/mcp.M600429-MCP200 ;  PMID:  17317660
• Quantitative phosphoproteomics of early elicitor signaling in Arabidopsis.   DOI:  10.1074/mcp.M600429-MCP200 ;  PMID:  17317660

Sequences: