7AIN

Structure of Human Potassium Chloride Transporter KCC3 S45D/T940D/T997D in NaCl (Reference Map)

External Resource: Annotation

Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: mpstruc
Protein Modification Annotation

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth B], B [auth A]	PF03522	Solute carrier family 12 (SLC12)	Solute carrier family 12	-	Family
A [auth B], B [auth A]	PF00324	Amino acid permease (AA_permease)	Amino acid permease	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth B], B [auth A]	Isoform 2 of Solute carrier family 12 member 6	monoatomic cation transmembrane transporter activity potassium ion transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity passive transmembrane transporter activity channel activity ammonium transmembrane transporter activity protein binding binding kinase binding monoatomic cation transmembrane transporter activity potassium ion transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity passive transmembrane transporter activity channel activity ammonium transmembrane transporter activity protein binding binding kinase binding enzyme binding protein kinase binding monoatomic anion transmembrane transporter activity chloride transmembrane transporter activity solute:monoatomic cation symporter activity monoatomic anion:monoatomic cation symporter activity secondary active transmembrane transporter activity chloride:monoatomic cation symporter activity active monoatomic ion transmembrane transporter activity active transmembrane transporter activity symporter activity potassium:chloride symporter activity inorganic anion transmembrane transporter activity cation binding ion binding metal ion binding small molecule binding	transport monoatomic ion transmembrane transport potassium ion transmembrane transport inorganic ion transmembrane transport establishment of localization metal ion transport inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport potassium ion transport cellular process monoatomic cation transport transport monoatomic ion transmembrane transport potassium ion transmembrane transport inorganic ion transmembrane transport establishment of localization metal ion transport inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport potassium ion transport cellular process monoatomic cation transport developmental process multicellular organismal process blood vessel morphogenesis tube development angiogenesis vasculature development circulatory system development multicellular organism development anatomical structure morphogenesis tube morphogenesis anatomical structure development anatomical structure formation involved in morphogenesis blood vessel development system development inorganic anion transmembrane transport chloride transport chloride transmembrane transport monoatomic anion transport monoatomic anion transmembrane transport inorganic anion transport cellular response to stimulus response to organic substance response to stimulus homeostatic process response to monosaccharide response to carbohydrate carbohydrate homeostasis cellular response to hexose stimulus intracellular chemical homeostasis cellular response to monosaccharide stimulus cellular response to organic substance response to oxygen-containing compound cellular response to glucose stimulus intracellular glucose homeostasis cellular response to oxygen-containing compound response to hexose cellular response to carbohydrate stimulus cellular response to chemical stimulus cellular homeostasis chemical homeostasis response to glucose response to chemical glucose homeostasis regulation of cellular component size cell volume homeostasis biological regulation cellular component organization cellular component organization or biogenesis regulation of biological quality regulation of cell size regulation of anatomical structure size inorganic ion homeostasis monoatomic ion homeostasis chloride ion homeostasis monoatomic anion homeostasis response to osmotic stress cellular hypotonic salinity response cellular response to salt stress cellular hypotonic response cellular response to chemical stress cellular response to osmotic stress response to salt stress cellular response to environmental stimulus hypotonic response cellular response to stress hypotonic salinity response response to stress response to abiotic stimulus cellular response to abiotic stimulus import into cell nitrogen compound transport ammonium transmembrane transport ammonium import across plasma membrane import across plasma membrane inorganic cation import across plasma membrane inorganic ion import across plasma membrane potassium ion homeostasis monoatomic cation homeostasis trans-synaptic signaling synaptic signaling regulation of biological process signaling anterograde trans-synaptic signaling cell-cell signaling chemical synaptic transmission cell communication potassium ion import across plasma membrane	membrane cellular anatomical entity cell periphery plasma membrane basal part of cell basal plasma membrane plasma membrane region basolateral plasma membrane synapse cell junction axon cell projection neuron projection plasma membrane bounded cell projection

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B], B [auth A]	IPR000076	K/Cl co-transporter	Family
A [auth B], B [auth A]	IPR004842	SLC12A transporter family	Family
A [auth B], B [auth A]	IPR004841	Amino acid permease/ SLC12A domain	Domain
A [auth B], B [auth A]	IPR018491	SLC12A transporter, C-terminal	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth B], B [auth A]	Pharos: Q9UHW9	agenesis of the corpus callosum with peripheral neuropathy peripheral neuropathy peripheral nervous system disease esophageal adenocarcinoma osteosarcoma bipolar disorder intellectual disability ovarian cancer spina bifida Charcot-Marie-Tooth disease malignant mesothelioma

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A [auth B], B [auth A]	OPM	Transmembrane	Alpha-helical polytopic	APC (Amino acid-Polyamine-organoCation) superfamily	Cation-chloride cotransporter

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A [auth B], B [auth A]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A [auth B], B [auth A]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Amino Acid/Polyamine/Organocation (APC) Superfamily	KCC3b cation-chloride cotransporter (CCC), wild-type in NaCl

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A [auth B], B [auth A]	SEP	Parent Component: SER RESID: AA0037 PSI-MOD : O-phospho-L-serine MOD:00046
A [auth B], B [auth A]	TPO	Parent Component: THR RESID: AA0037 , AA0038 PSI-MOD : O-phospho-L-serine MOD:00046 , O-phospho-L-threonine MOD:00047

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 R01GM133198.