Protein Information

Name ABP1
Synonyms ABP 1; ABP1; CMAP; Cervical SH3P7; Cervical mucin associated protein; DBNL; Drebrin F; Drebrin like…

Compound Information

Name IAA
CAS

Reference List

PubMed Abstract RScore(About this table)
20348352 Chen D, Ren Y, Deng Y, Zhao J: Auxin polar transport is essential for the development of zygote and embryo in Nicotiana tabacum L. and correlated with ABP1 and PM H+-ATPase activities. J Exp Bot. 2010 Mar 26.

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19669789 Dahlke RI, Luthen H, Steffens B: The auxin-binding pocket of auxin-binding protein 1 comprises the highly conserved boxes a and c. Planta. 2009 Oct;230(5):917-24. Epub 2009 Aug 11.


The auxin-binding protein 1 (ABP1) has already been proved to be an extracellular receptor of auxin in single cell systems.
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14764902 Yamagami M, Haga K, Napier RM, Iino M: Two distinct signaling pathways participate in auxin-induced swelling of pea epidermal protoplasts. Plant Physiol. 2004 Feb;134(2):735-47. Epub 2004 Feb 5.


The responses to IAA and NAA were further analyzed using antibodies raised against ABP1 (auxin-binding protein 1), and their dependency on extracellular ions was investigated.
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9684362 Gehring CA, McConchie RM, Venis MA, Parish RW: Auxin-binding-protein antibodies and peptides influence stomatal opening and alter cytoplasmic pH. Planta. 1998 Aug;205(4):581-6.


We now report that Fab fragments of an auxin-agonist antibody (D16), directed against a putative auxin-binding domain of the auxin-binding protein ABP1, induce stomatal opening and decrease guard-cell pHi, as monitored with the acetomethoxy ester of the ratiometric pH indicator Snarf-1.
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9787462 Reinard T, Achmus H, Walther A, Rescher U, Klambt D, Jacobsen HJ: Assignment of the auxin binding abilities of ABP44 in gel. Plant Cell Physiol. 1998 Aug;39(8):874-8.


Immunostaining using the antibody D16 (Napier and Venis 1992), which is directed against the putative binding site of ABP1, revealed that ABP44's auxin binding site is at least partially related to the corresponding site of ABP1.
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16564202 Badescu GO, Napier RM: Receptors for auxin: will it all end in TIRs? . Trends Plant Sci. 2006 May;11(5):217-23. Epub 2006 Mar 24.

The role of TIR1 in ubiquitination and regulated degradation of Aux/IAA transcription factors has been recognized for some years, but recent results have shown that TIR1 itself is also the binding site for auxin.
The affinity and specificity of TIR1 match properties anticipated of a nuclear auxin receptor and we look at how they compare with the properties of ABP1.
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16001261 Hou ZX, Huang WD: Immunohistochemical localization of IAA and ABP1 in strawberry shoot apexes during floral induction. Planta. 2005 Nov;222(4):678-87. Epub 2005 Nov 4.

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17030542 Hou HW, Zhou YT, Mwange KN, Li WF, He XQ, Cui KM: ABP1 expression regulated by IAA and ABA is associated with the cambium periodicity in Eucommia ulmoides Oliv. J Exp Bot. 2006;57(14):3857-67. Epub 2006 Oct 9.

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