Annotations: 6QKC

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	Type 2 solute binding protein-like	8036483	3000083	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Type 2 solute binding protein-like	8036483	3000083	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
F [auth J]	p450	e6qkcJ1	A: alpha bundles	X: PriB N-terminal domain-like	H: Aconitase iron-sulfur domain	T: Aconitase iron-sulfur domain	F: p450	ECOD (develop294)
E [auth I]	p450	e6qkcI1	A: alpha bundles	X: PriB N-terminal domain-like	H: Aconitase iron-sulfur domain	T: Aconitase iron-sulfur domain	F: p450	ECOD (develop294)
D	p450	e6qkcD1	A: alpha bundles	X: PriB N-terminal domain-like	H: Aconitase iron-sulfur domain	T: Aconitase iron-sulfur domain	F: p450	ECOD (develop294)
B	p450	e6qkcB1	A: alpha bundles	X: PriB N-terminal domain-like	H: Aconitase iron-sulfur domain	T: Aconitase iron-sulfur domain	F: p450	ECOD (develop294)
C	p450	e6qkcC1	A: alpha bundles	X: PriB N-terminal domain-like	H: Aconitase iron-sulfur domain	T: Aconitase iron-sulfur domain	F: p450	ECOD (develop294)
A	p450	e6qkcA1	A: alpha bundles	X: PriB N-terminal domain-like	H: Aconitase iron-sulfur domain	T: Aconitase iron-sulfur domain	F: p450	ECOD (develop294)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B, D	PF00060	Ligand-gated ion channel (Lig_chan)	Ligand-gated ion channel	-	Family
A, C	PF00060	Ligand-gated ion channel (Lig_chan)	Ligand-gated ion channel	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E [auth I], F [auth J]	Voltage-dependent calcium channel gamma-8 subunit	protein phosphatase binding phosphatase binding protein binding binding protein phosphatase 2B binding enzyme binding calcium channel activity monoatomic cation transmembrane transporter activity voltage-gated calcium channel activity gated channel activity monoatomic ion channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity protein phosphatase binding phosphatase binding protein binding binding protein phosphatase 2B binding enzyme binding calcium channel activity monoatomic cation transmembrane transporter activity voltage-gated calcium channel activity gated channel activity monoatomic ion channel activity voltage-gated channel activity voltage-gated monoatomic ion channel activity voltage-gated monoatomic cation channel activity monoatomic cation channel activity passive transmembrane transporter activity calcium ion transmembrane transporter activity channel activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity channel regulator activity molecular function regulator activity transporter regulator activity ionotropic glutamate receptor binding signaling receptor binding glutamate receptor binding ion channel regulator activity calcium channel regulator activity	regulation of postsynaptic membrane neurotransmitter receptor levels biological regulation regulation of biological quality multicellular organismal process system process nervous system process cellular process transmission of nerve impulse cell communication cellular localization localization within membrane neurotransmitter receptor diffusion trapping localization receptor diffusion trapping regulation of postsynaptic membrane neurotransmitter receptor levels biological regulation regulation of biological quality multicellular organismal process system process nervous system process cellular process transmission of nerve impulse cell communication cellular localization localization within membrane neurotransmitter receptor diffusion trapping localization receptor diffusion trapping receptor localization to synapse postsynaptic neurotransmitter receptor diffusion trapping positive regulation of cell communication regulation of cellular process signaling modulation of chemical synaptic transmission synaptic transmission, glutamatergic positive regulation of biological process regulation of synaptic transmission, glutamatergic synaptic signaling positive regulation of cellular process trans-synaptic signaling regulation of signaling regulation of biological process positive regulation of synaptic transmission cell-cell signaling positive regulation of synaptic transmission, glutamatergic chemical synaptic transmission regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of cell communication positive regulation of signaling cellular response to stimulus regulation of localization response to stimulus transport regulation of signaling receptor activity regulation of AMPA receptor activity regulation of transmembrane transporter activity regulation of signal transduction signal transduction regulation of transport establishment of localization transmembrane transport regulation of molecular function regulation of transmembrane transport regulation of response to stimulus regulation of neurotransmitter receptor activity	protein-containing complex plasma membrane protein complex sarcolemma voltage-gated calcium channel complex plasma membrane membrane membrane protein complex cation channel complex transporter complex cell periphery cellular anatomical structure transmembrane transporter complex T-tubule L-type voltage-gated calcium channel complex protein-containing complex plasma membrane protein complex sarcolemma voltage-gated calcium channel complex plasma membrane membrane membrane protein complex cation channel complex transporter complex cell periphery cellular anatomical structure transmembrane transporter complex T-tubule L-type voltage-gated calcium channel complex calcium channel complex monoatomic ion channel complex postsynaptic specialization membrane postsynaptic specialization synapse postsynaptic density membrane synaptic membrane postsynaptic density postsynapse neuron to neuron synapse organelle cell junction postsynaptic membrane asymmetric synapse plasma membrane region receptor complex AMPA glutamate receptor complex ionotropic glutamate receptor complex neurotransmitter receptor complex plasma membrane signaling receptor complex cell leading edge neuron projection leading edge membrane plasma membrane bounded cell projection somatodendritic compartment neuron projection membrane cell projection dendrite membrane dendrite dendritic tree cell projection membrane Schaffer collateral - CA1 synapse glutamatergic synapse
B, D	Glutamate receptor 2	transmitter-gated monoatomic ion channel activity glutamate receptor activity molecular transducer activity gated channel activity monoatomic ion channel activity signaling receptor activity carboxylic acid transmembrane transporter activity glutamate-gated receptor activity neurotransmitter receptor activity ligand-gated channel activity AMPA glutamate receptor activity ligand-gated monoatomic ion channel activity extracellular ligand-gated monoatomic ion channel activity amino acid transmembrane transporter activity passive transmembrane transporter activity transmitter-gated monoatomic ion channel activity glutamate receptor activity molecular transducer activity gated channel activity monoatomic ion channel activity signaling receptor activity carboxylic acid transmembrane transporter activity glutamate-gated receptor activity neurotransmitter receptor activity ligand-gated channel activity AMPA glutamate receptor activity ligand-gated monoatomic ion channel activity extracellular ligand-gated monoatomic ion channel activity amino acid transmembrane transporter activity passive transmembrane transporter activity channel activity transmembrane signaling receptor activity transmitter-gated channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity amyloid-beta binding binding peptide binding cytoskeletal protein binding protein binding excitatory extracellular ligand-gated monoatomic ion channel activity extracellularly glutamate-gated ion channel activity protein-containing complex binding immunoglobulin binding identical protein binding monoatomic cation transmembrane transporter activity monoatomic cation channel activity ligand-gated monoatomic cation channel activity PDZ domain binding protein domain specific binding signaling receptor binding glutamate receptor binding ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential scaffold protein binding ligand-gated calcium channel activity calcium channel activity glutamate-gated calcium ion channel activity calcium ion transmembrane transporter activity metal ion transmembrane transporter activity ionotropic glutamate receptor binding SNARE binding kinase binding enzyme binding protein kinase binding transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential sodium channel activity kainate selective glutamate receptor activity potassium ion transmembrane transporter activity ligand-gated sodium channel activity sodium ion transmembrane transporter activity potassium channel activity	cellular response to stimulus positive regulation of cell communication multicellular organismal process regulation of postsynaptic membrane potential system process regulation of cellular process positive regulation of signal transduction response to stimulus signaling modulation of chemical synaptic transmission regulation of system process positive regulation of excitatory postsynaptic potential positive regulation of biological process regulation of signal transduction chemical synaptic transmission, postsynaptic cellular response to stimulus positive regulation of cell communication multicellular organismal process regulation of postsynaptic membrane potential system process regulation of cellular process positive regulation of signal transduction response to stimulus signaling modulation of chemical synaptic transmission regulation of system process positive regulation of excitatory postsynaptic potential positive regulation of biological process regulation of signal transduction chemical synaptic transmission, postsynaptic cell communication positive regulation of response to stimulus synaptic signaling modulation of excitatory postsynaptic potential regulation of multicellular organismal process signal transduction regulation of biological quality positive regulation of cellular process trans-synaptic signaling regulation of biological process regulation of signaling cell surface receptor signaling pathway nervous system process biological regulation cell-cell signaling chemical synaptic transmission regulation of nervous system process regulation of trans-synaptic signaling regulation of response to stimulus anterograde trans-synaptic signaling regulation of cell communication cellular process excitatory postsynaptic potential regulation of membrane potential positive regulation of signaling membrane organization cellular localization postsynapse organization AMPA glutamate receptor clustering glutamate receptor clustering neurotransmitter-gated ion channel clustering localization within membrane protein localization to membrane cellular component organization localization cell junction organization receptor clustering macromolecule localization cellular component organization or biogenesis synapse organization intracellular protein localization postsynaptic membrane organization import into cell receptor internalization transport receptor-mediated endocytosis endocytosis establishment of localization vesicle-mediated transport cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein tetramerization protein-containing complex assembly cellular response to endogenous stimulus cellular response to growth factor stimulus response to endogenous stimulus cellular response to nerve growth factor stimulus cellular response to brain-derived neurotrophic factor stimulus response to nerve growth factor response to growth factor response to lithium ion response to metal ion response to chemical developmental process head development forebrain development animal organ development brain development nervous system development pallium development cerebral cortex development multicellular organism development central nervous system development anatomical structure development telencephalon development system development behavior learning learning or memory cognition conditioned place preference associative learning regulation of receptor recycling regulation of macromolecule metabolic process receptor recycling receptor metabolic process metabolic process macromolecule metabolic process regulation of metabolic process cellular response to amine stimulus cellular response to nitrogen compound response to amine cellular response to chemical stimulus response to nitrogen compound positive regulation of synaptic transmission establishment of protein localization response to antibiotic response to fungicide response to toxic substance cellular response to acid chemical cellular response to amino acid stimulus response to glycine response to oxygen-containing compound response to amino acid cellular response to glycine cellular response to oxygen-containing compound response to acid chemical ligand-gated ion channel signaling pathway ionotropic glutamate receptor signaling pathway glutamate receptor signaling pathway negative regulation of signaling negative regulation of biological process negative regulation of synaptic transmission negative regulation of cell communication negative regulation of cellular process regulation of synaptic plasticity long-term synaptic depression regulation of long-term synaptic depression synaptic transmission, glutamatergic regulation of synaptic transmission, glutamatergic long-term synaptic potentiation	postsynaptic specialization membrane postsynaptic specialization synapse membrane plasma membrane postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse cellular anatomical structure neuron to neuron synapse organelle cell junction postsynaptic specialization membrane postsynaptic specialization synapse membrane plasma membrane postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse cellular anatomical structure neuron to neuron synapse organelle cell junction postsynaptic membrane asymmetric synapse plasma membrane region somatodendritic compartment cell body perikaryon neuronal cell body cell surface external side of plasma membrane side of membrane protein-containing complex plasma membrane protein complex membrane protein complex transporter complex receptor complex AMPA glutamate receptor complex ionotropic glutamate receptor complex neurotransmitter receptor complex transmembrane transporter complex plasma membrane signaling receptor complex monoatomic ion channel complex presynapse presynaptic membrane cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection glutamatergic synapse extracellular region perisynaptic space spine synapse dendritic shaft neuron spine dendritic spine membrane-bounded organelle intracellular anatomical structure intracellular vesicle transport vesicle membrane endomembrane system intracellular organelle bounding membrane of organelle cytoplasmic vesicle vesicle membrane synaptic vesicle synaptic vesicle membrane vesicle transport vesicle exocytic vesicle membrane intracellular membrane-bounded organelle cytoplasmic vesicle membrane secretory vesicle cytoplasm organelle membrane exocytic vesicle axon dendritic spine neck axon terminus distal axon terminal bouton neuron projection terminus dendritic spine head growth cone site of polarized growth neuron projection cytoplasm dendrite cytoplasm dendritic spine cytoplasm presynaptic active zone membrane presynaptic active zone cell leading edge leading edge membrane neuron projection membrane dendrite membrane cell projection membrane excitatory synapse Schaffer collateral - CA1 synapse endoplasmic reticulum
A, C	Glutamate receptor 1	transmitter-gated monoatomic ion channel activity glutamate receptor activity molecular transducer activity gated channel activity monoatomic ion channel activity signaling receptor activity carboxylic acid transmembrane transporter activity glutamate-gated receptor activity neurotransmitter receptor activity ligand-gated channel activity AMPA glutamate receptor activity ligand-gated monoatomic ion channel activity extracellular ligand-gated monoatomic ion channel activity amino acid transmembrane transporter activity passive transmembrane transporter activity transmitter-gated monoatomic ion channel activity glutamate receptor activity molecular transducer activity gated channel activity monoatomic ion channel activity signaling receptor activity carboxylic acid transmembrane transporter activity glutamate-gated receptor activity neurotransmitter receptor activity ligand-gated channel activity AMPA glutamate receptor activity ligand-gated monoatomic ion channel activity extracellular ligand-gated monoatomic ion channel activity amino acid transmembrane transporter activity passive transmembrane transporter activity channel activity transmembrane signaling receptor activity transmitter-gated channel activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity amyloid-beta binding binding peptide binding protein binding G-protein alpha-subunit binding protein domain specific binding PDZ domain binding scaffold protein binding kinase binding enzyme binding protein kinase binding cytoskeletal protein binding myosin V binding myosin binding small GTPase binding GTPase binding adenylate cyclase binding calcium channel activity monoatomic cation transmembrane transporter activity monoatomic cation channel activity calcium ion transmembrane transporter activity ligand-gated calcium channel activity metal ion transmembrane transporter activity ligand-gated monoatomic cation channel activity beta-2 adrenergic receptor binding adrenergic receptor binding signaling receptor binding G protein-coupled receptor binding peptide hormone receptor binding hormone receptor binding protein-containing complex binding immunoglobulin binding protein kinase A binding identical protein binding glutamate receptor binding ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential glutamate-gated calcium ion channel activity G-protein beta-subunit binding transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential	response to stimulus response to chemical response to xenobiotic stimulus cellular response to stimulus positive regulation of cell communication multicellular organismal process regulation of postsynaptic membrane potential system process regulation of cellular process positive regulation of signal transduction signaling modulation of chemical synaptic transmission regulation of system process positive regulation of excitatory postsynaptic potential response to stimulus response to chemical response to xenobiotic stimulus cellular response to stimulus positive regulation of cell communication multicellular organismal process regulation of postsynaptic membrane potential system process regulation of cellular process positive regulation of signal transduction signaling modulation of chemical synaptic transmission regulation of system process positive regulation of excitatory postsynaptic potential positive regulation of biological process regulation of signal transduction chemical synaptic transmission, postsynaptic cell communication positive regulation of response to stimulus synaptic signaling modulation of excitatory postsynaptic potential regulation of multicellular organismal process signal transduction regulation of biological quality positive regulation of cellular process trans-synaptic signaling regulation of biological process regulation of signaling cell surface receptor signaling pathway nervous system process biological regulation cell-cell signaling chemical synaptic transmission regulation of nervous system process regulation of trans-synaptic signaling regulation of response to stimulus anterograde trans-synaptic signaling regulation of cell communication cellular process excitatory postsynaptic potential regulation of membrane potential positive regulation of signaling cellular response to endogenous stimulus cellular response to growth factor stimulus response to endogenous stimulus cellular response to nerve growth factor stimulus cellular response to brain-derived neurotrophic factor stimulus response to nerve growth factor response to growth factor cellular response to nitrogen compound response to peptide hormone cellular response to peptide hormone stimulus response to oxygen-containing compound response to nitrogen compound cellular response to oxygen-containing compound cellular response to chemical stimulus response to hormone cellular response to hormone stimulus response to toxic substance behavior response to stress multicellular organismal response to stress response to pain behavioral response to pain response to morphine response to isoquinoline alkaloid response to alkaloid learning learning or memory cognition conditioned place preference associative learning response to arsenic-containing substance positive regulation of synaptic transmission developmental process multicellular organism development spinal cord development central nervous system development anatomical structure development nervous system development system development cellular response to ammonium ion response to ammonium ion response to psychosocial stress response to antibiotic response to fungicide response to lipid response to estradiol cellular response to dsRNA response to dsRNA localization import into cell receptor internalization transport receptor-mediated endocytosis endocytosis establishment of localization vesicle-mediated transport regulation of biosynthetic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process positive regulation of macromolecule biosynthetic process regulation of gene expression positive regulation of metabolic process biosynthetic process positive regulation of gene expression positive regulation of biosynthetic process regulation of macromolecule biosynthetic process metabolic process positive regulation of macromolecule metabolic process macromolecule metabolic process regulation of metabolic process response to electrical stimulus response to abiotic stimulus response to lithium ion response to metal ion head development forebrain development animal organ development brain development pallium development cerebral cortex development telencephalon development cellular response to acid chemical cellular response to amino acid stimulus cellular response to L-glutamate response to amino acid response to acid chemical response to L-glutamate positive regulation of membrane potential regulation of localization regulation of transport monoatomic ion transmembrane transport regulation of monoatomic ion transport regulation of monoatomic ion transmembrane transport transmembrane transport regulation of transmembrane transport monoatomic ion transport response to nutrient levels positive regulation of locomotion locomotion involved in locomotory behavior regulation of behavior positive regulation of locomotion involved in locomotory behavior locomotory behavior positive regulation of behavior regulation of locomotion regulation of locomotion involved in locomotory behavior positive regulation of multicellular organismal process locomotion cellular component organization cellular component biogenesis cell junction organization cellular component assembly cell junction assembly synapse organization cellular component organization or biogenesis synapse assembly regulation of receptor recycling receptor recycling receptor metabolic process cellular response to amine stimulus response to amine response to carbohydrate response to sucrose response to disaccharide response to alcohol response to ethanol long-term memory memory action potential transmission of nerve impulse neuronal action potential response to glycine cellular response to glycine regulation of synaptic plasticity negative regulation of signaling negative regulation of biological process negative regulation of synaptic transmission negative regulation of cell communication negative regulation of cellular process long-term synaptic depression long-term synaptic potentiation synaptic transmission, glutamatergic response to cocaine	postsynaptic specialization membrane postsynaptic specialization synapse membrane plasma membrane postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse cellular anatomical structure neuron to neuron synapse organelle cell junction postsynaptic specialization membrane postsynaptic specialization synapse membrane plasma membrane postsynaptic density membrane synaptic membrane cell periphery postsynaptic density postsynapse cellular anatomical structure neuron to neuron synapse organelle cell junction postsynaptic membrane asymmetric synapse plasma membrane region cell-cell junction anchoring junction intracellular anatomical structure cytoplasm cytosol axon cell projection axonal spine neuron spine neuron projection plasma membrane bounded cell projection neuromuscular junction extracellular region perisynaptic space membrane-bounded organelle endosome intracellular vesicle intracellular membrane-bounded organelle recycling endosome endomembrane system intracellular organelle cytoplasmic vesicle vesicle dendritic spine somatodendritic compartment dendrite dendritic tree neuron projection membrane dendrite membrane cell leading edge leading edge membrane dendritic spine membrane cell projection membrane cell body transport vesicle presynapse synaptic vesicle secretory vesicle exocytic vesicle cell surface protein-containing complex organelle subcompartment endoplasmic reticulum subcompartment nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum organelle membrane endoplasmic reticulum membrane presynaptic active zone membrane presynaptic membrane presynaptic active zone excitatory synapse external side of plasma membrane side of membrane plasma membrane protein complex membrane protein complex transporter complex receptor complex AMPA glutamate receptor complex ionotropic glutamate receptor complex neurotransmitter receptor complex transmembrane transporter complex plasma membrane signaling receptor complex monoatomic ion channel complex proximal dendrite glutamatergic synapse dendritic shaft neuronal cell body neuronal cell body membrane cell body membrane postsynaptic density, intracellular component intracellular membraneless organelle postsynaptic specialization, intracellular component membraneless organelle transport vesicle membrane bounding membrane of organelle vesicle membrane synaptic vesicle membrane exocytic vesicle membrane cytoplasmic vesicle membrane early endosome endosome membrane recycling endosome membrane early endosome membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E [auth I], F [auth J]	IPR008372	Voltage-dependent calcium channel, gamma-8 subunit	Family
E [auth I], F [auth J]	IPR051072	Voltage-dependent calcium channel gamma subunit	Family
E [auth I], F [auth J]	IPR004031	PMP-22/EMP/MP20/Claudin	Family
E [auth I], F [auth J]	IPR008368	Voltage-dependent calcium channel, gamma subunit	Family
B, D	IPR028082	Periplasmic binding protein-like I	Homologous Superfamily
B, D	IPR001508	Ionotropic glutamate receptor, metazoa	Family
B, D	IPR001828	Receptor, ligand binding region	Domain
B, D	IPR001320	Ionotropic glutamate receptor, C-terminal	Domain
B, D	IPR019594	Ionotropic glutamate receptor, L-glutamate and glycine-binding domain	Domain
B, D	IPR015683	Ionotropic glutamate receptor	Family
A, C	IPR028082	Periplasmic binding protein-like I	Homologous Superfamily
A, C	IPR001828	Receptor, ligand binding region	Domain
A, C	IPR001320	Ionotropic glutamate receptor, C-terminal	Domain
A, C	IPR019594	Ionotropic glutamate receptor, L-glutamate and glycine-binding domain	Domain
A, C	IPR001508	Ionotropic glutamate receptor, metazoa	Family
A, C	IPR015683	Ionotropic glutamate receptor	Family

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C, D, E [auth I] A, B, C, D, E [auth I], F [auth J]	OPM	Transmembrane	Alpha-helical polytopic	Ion channel (VIC) superfamily	Glutamate-gated Ion Channel (GIC) family

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C, D, E [auth I] A, B, C, D, E [auth I], F [auth J]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C, D, E [auth I] A, B, C, D, E [auth I], F [auth J]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Channels: Other Ion Channels	Glutamate receptor (AMPA-subtype), GluA1/GluA2/GluA1/GluA2 tetramer in complex with TARP γ8

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.