Annotations: 9LVB

IAA-free AUX1

External Resource: Annotation

Domain Annotation: ECOD Classification
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: MemProtMD

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth L]	Beta-Casp	e9lvbL1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: Beta-Casp	ECOD (v294.2)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
D [auth N]	Heavy Chain	IGHV1	-	-	SAbDab (2026-06-05)
C [auth L]	Light Chain	IGKV1	Kappa	auxin transporter protein 1,soluble cytochrome b562	SAbDab (2026-06-05)
B [auth H]	Heavy Chain	IGHV3	-	auxin transporter protein 1,soluble cytochrome b562	SAbDab (2026-06-05)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D [auth N]	Nanobody	-	-	-
C [auth L]	light chain	-	-	-
B [auth H]	heavy chain	-	-	-
A	Auxin transporter protein 1,Soluble cytochrome b562	amino acid transmembrane transporter activity transporter activity transmembrane transporter activity auxin binding binding hormone binding auxin transmembrane transporter activity auxin influx transmembrane transporter activity active transmembrane transporter activity symporter activity secondary active transmembrane transporter activity	positive gravitropism response to stimulus response to abiotic stimulus tropism response to external stimulus gravitropism response to gravity developmental process multicellular organismal process reproductive system development reproductive process embryo development developmental process involved in reproduction regeneration positive gravitropism response to stimulus response to abiotic stimulus tropism response to external stimulus gravitropism response to gravity developmental process multicellular organismal process reproductive system development reproductive process embryo development developmental process involved in reproduction regeneration multicellular organism development fruit development somatic embryogenesis embryo development ending in seed dormancy seed development anatomical structure development reproductive structure development post-embryonic development system development plant epidermal cell differentiation cellular developmental process plant epidermis development cell development cell differentiation cell maturation root development trichoblast differentiation plant organ development root morphogenesis root epidermal cell differentiation root hair cell differentiation developmental maturation tissue development plant organ morphogenesis anatomical structure morphogenesis trichoblast maturation anatomical structure maturation cellular process root system development post-embryonic root morphogenesis post-embryonic plant organ morphogenesis post-embryonic plant morphogenesis post-embryonic root development lateral root morphogenesis anatomical structure formation involved in morphogenesis lateral root development post-embryonic plant organ development plant organ formation lateral root formation root cap development transmembrane transport amino acid transport localization transport amino acid transmembrane transport establishment of localization biological process involved in interspecies interaction between organisms response to other organism response to external biotic stimulus response to nematode response to biotic stimulus auxin-activated signaling pathway cellular response to stimulus regulation of biological process regulation of cellular process signaling response to endogenous stimulus biological regulation hormone-mediated signaling pathway cellular response to auxin stimulus cell communication response to auxin cellular response to endogenous stimulus cellular response to chemical stimulus response to hormone response to chemical signal transduction cellular response to hormone stimulus auxin polar transport regulation of hormone levels auxin transport hormone transport regulation of biological quality tissue morphogenesis establishment of planar polarity establishment of tissue polarity epithelium development morphogenesis of a polarized epithelium morphogenesis of an epithelium	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure Golgi apparatus organelle cytoplasm intracellular membrane-bounded organelle endomembrane system endosome intracellular vesicle cytoplasmic vesicle vesicle cell surface membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure Golgi apparatus organelle cytoplasm intracellular membrane-bounded organelle endomembrane system endosome intracellular vesicle cytoplasmic vesicle vesicle cell surface cell periphery plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR013057	Amino acid transporter, transmembrane domain	Domain

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A	MemProtMD	Annotated as membrane protein by MemProtMD

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.