6ANU | pdb_00006anu

Cryo-EM structure of F-actin complexed with the beta-III-spectrin actin-binding domain

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
J [auth c]	SH3_2	e6anuc1	A: a/b three-layered sandwiches	X: SH3	H: SH3	T: SH3	F: SH3_2	ECOD (v294.1)
K [auth d]	SH3_2	e6anud1	A: a/b three-layered sandwiches	X: SH3	H: SH3	T: SH3	F: SH3_2	ECOD (v294.1)
L [auth e]	SH3_2	e6anue1	A: a/b three-layered sandwiches	X: SH3	H: SH3	T: SH3	F: SH3_2	ECOD (v294.1)
I [auth b]	SH3_2	e6anub1	A: a/b three-layered sandwiches	X: SH3	H: SH3	T: SH3	F: SH3_2	ECOD (v294.1)
H [auth a]	SH3_2	e6anua1	A: a/b three-layered sandwiches	X: SH3	H: SH3	T: SH3	F: SH3_2	ECOD (v294.1)
G [auth f]	SH3_2	e6anuf1	A: a/b three-layered sandwiches	X: SH3	H: SH3	T: SH3	F: SH3_2	ECOD (v294.1)
A [auth F]	SH3_2	e6anuF1	A: a/b three-layered sandwiches	X: SH3	H: SH3	T: SH3	F: SH3_2	ECOD (v294.1)
B [auth A]	SH3_2	e6anuA1	A: a/b three-layered sandwiches	X: SH3	H: SH3	T: SH3	F: SH3_2	ECOD (v294.1)
C [auth B]	SH3_2	e6anuB1	A: a/b three-layered sandwiches	X: SH3	H: SH3	T: SH3	F: SH3_2	ECOD (v294.1)
D [auth C]	SH3_2	e6anuC1	A: a/b three-layered sandwiches	X: SH3	H: SH3	T: SH3	F: SH3_2	ECOD (v294.1)
E [auth D]	SH3_2	e6anuD1	A: a/b three-layered sandwiches	X: SH3	H: SH3	T: SH3	F: SH3_2	ECOD (v294.1)
F [auth E]	SH3_2	e6anuE1	A: a/b three-layered sandwiches	X: SH3	H: SH3	T: SH3	F: SH3_2	ECOD (v294.1)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth F], B [auth A], C [auth B], D [auth C], E [auth D], A [auth F], B [auth A], C [auth B], D [auth C], E [auth D], F [auth E]	PF00022	Actin (Actin)	Actin	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], L [auth e]	Spectrin beta chain, non-erythrocytic 2	cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding phospholipid binding lipid binding structural molecule activity structural constituent of synapse cell adhesion molecule binding cadherin binding structural constituent of cytoskeleton structural constituent of postsynapse	developmental process cerebellum morphogenesis multicellular organismal process cerebellar cortex morphogenesis head development hindbrain morphogenesis animal organ development brain development nervous system development cerebellar cortex development multicellular organism development anatomical structure morphogenesis cerebellar Purkinje cell layer development cerebellum development central nervous system development developmental process cerebellum morphogenesis multicellular organismal process cerebellar cortex morphogenesis head development hindbrain morphogenesis animal organ development brain development nervous system development cerebellar cortex development multicellular organism development anatomical structure morphogenesis cerebellar Purkinje cell layer development cerebellum development central nervous system development metencephalon development anatomical structure development cerebellar Purkinje cell layer morphogenesis hindbrain development system development behavior adult behavior cellular component organization organelle organization actin cytoskeleton organization actin filament-based process cellular process cellular component organization or biogenesis cytoskeleton organization regulation of cellular process regulation of cellular component organization regulation of postsynaptic specialization assembly cellular component biogenesis cellular component assembly cell junction assembly synapse organization regulation of biological process postsynapse organization organelle assembly postsynaptic specialization assembly postsynapse assembly biological regulation regulation of cellular component biogenesis regulation of organelle organization cell junction organization regulation of organelle assembly postsynaptic specialization organization synapse assembly regulation of cellular component size negative regulation of biological process protein-containing complex disassembly regulation of protein-containing complex disassembly actin filament depolymerization regulation of actin filament depolymerization actin filament capping regulation of biological quality negative regulation of supramolecular fiber organization negative regulation of actin filament polymerization cellular component disassembly negative regulation of cellular component organization actin filament organization negative regulation of protein depolymerization negative regulation of protein-containing complex assembly regulation of protein polymerization regulation of supramolecular fiber organization supramolecular fiber organization regulation of cytoskeleton organization regulation of actin filament-based process regulation of protein-containing complex assembly negative regulation of protein-containing complex disassembly negative regulation of cellular process protein-containing complex assembly negative regulation of protein polymerization regulation of actin filament polymerization actin polymerization or depolymerization protein polymerization regulation of actin filament organization actin filament polymerization protein-containing complex organization regulation of protein depolymerization negative regulation of cytoskeleton organization regulation of actin polymerization or depolymerization negative regulation of organelle organization regulation of actin filament length regulation of actin cytoskeleton organization negative regulation of actin filament depolymerization protein depolymerization regulation of anatomical structure size localization transport establishment of localization vesicle-mediated transport multicellular organism growth developmental growth growth	cellular anatomical structure cell junction cell-cell junction anchoring junction paranodal junction cell periphery apical part of cell membrane plasma membrane plasma membrane region apical plasma membrane intracellular anatomical structure cytoplasm cytosol cellular anatomical structure cell junction cell-cell junction anchoring junction paranodal junction cell periphery apical part of cell membrane plasma membrane plasma membrane region apical plasma membrane intracellular anatomical structure cytoplasm cytosol parallel fiber to Purkinje cell synapse synapse excitatory synapse intracellular membraneless organelle spectrin-associated cytoskeleton intracellular organelle postsynapse cytoskeleton organelle membraneless organelle postsynaptic cytoskeleton postsynaptic spectrin-associated cytoskeleton presynapse glutamatergic synapse spectrin protein-containing complex cell cortex cortical cytoskeleton actin cytoskeleton cortical actin cytoskeleton somatodendritic compartment cell body neuronal cell body cell projection
A [auth F], B [auth A], C [auth B], D [auth C], E [auth D], A [auth F], B [auth A], C [auth B], D [auth C], E [auth D], F [auth E]	Actin, cytoplasmic 1	structural constituent of postsynapse structural constituent of cytoskeleton structural molecule activity structural constituent of synapse structural constituent of postsynaptic actin cytoskeleton binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding structural constituent of postsynapse structural constituent of cytoskeleton structural molecule activity structural constituent of synapse structural constituent of postsynaptic actin cytoskeleton binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding cytoskeletal protein binding protein binding tau protein binding enzyme regulator activity molecular function regulator activity nitric-oxide synthase regulator activity nitric-oxide synthase binding enzyme binding identical protein binding kinesin binding transcription factor binding RNA polymerase II-specific DNA-binding transcription factor binding DNA-binding transcription factor binding Tat protein binding kinase binding protein kinase binding transporter regulator activity pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity ATP-dependent activity	regulation of chromosome segregation regulation of cell cycle phase transition regulation of cellular process regulation of metaphase/anaphase transition of cell cycle regulation of cellular component organization cell cycle phase transition regulation of mitotic metaphase/anaphase transition mitotic cell cycle cellular component organization regulation of mitotic cell cycle cell cycle cellular component organization or biogenesis regulation of cell cycle chromosome segregation regulation of chromosome segregation regulation of cell cycle phase transition regulation of cellular process regulation of metaphase/anaphase transition of cell cycle regulation of cellular component organization cell cycle phase transition regulation of mitotic metaphase/anaphase transition mitotic cell cycle cellular component organization regulation of mitotic cell cycle cell cycle cellular component organization or biogenesis regulation of cell cycle chromosome segregation cell cycle process regulation of biological process regulation of cell cycle process biological regulation chromosome organization sister chromatid segregation regulation of chromosome organization regulation of organelle organization regulation of mitotic cell cycle phase transition organelle organization mitotic cell cycle process regulation of sister chromatid segregation nuclear chromosome segregation metaphase/anaphase transition of mitotic cell cycle cellular process metaphase/anaphase transition of cell cycle mitotic cell cycle phase transition developmental process regulation of developmental process cellular developmental process positive regulation of biological process regulation of cell differentiation positive regulation of myoblast differentiation muscle structure development positive regulation of developmental process positive regulation of cell differentiation cell differentiation anatomical structure development regulation of myoblast differentiation myoblast differentiation positive regulation of cellular process multicellular organismal process regulation of body fluid levels wound healing response to stimulus homotypic cell-cell adhesion cell activation hemostasis platelet aggregation blood coagulation cell adhesion cell-cell adhesion response to stress coagulation regulation of biological quality response to wounding platelet activation regulation of apoptotic process apoptotic process regulation of programmed cell death cell death programmed cell death cellular response to nitrogen compound cellular response to stimulus response to cytochalasin B response to oxygen-containing compound response to nitrogen compound cellular response to oxygen-containing compound cellular response to cytochalasin B cellular response to chemical stimulus response to chemical regulation of localization import into cell cellular localization transport synaptic vesicle cycle regulation of synaptic vesicle recycling vesicle-mediated transport presynaptic endocytosis vesicle-mediated transport in synapse localization synaptic vesicle recycling regulation of synaptic vesicle endocytosis establishment of localization in cell regulation of endocytosis synaptic vesicle endocytosis regulation of transport regulation of vesicle-mediated transport establishment of localization endocytosis axonogenesis cell projection organization plasma membrane bounded cell projection morphogenesis cell development neuron projection development cell morphogenesis neurogenesis multicellular organism development cell projection morphogenesis neuron differentiation neuron projection morphogenesis system development plasma membrane bounded cell projection organization nervous system development axon development cell morphogenesis involved in neuron differentiation generation of neurons anatomical structure morphogenesis neuron development tissue morphogenesis epithelium development morphogenesis of a polarized epithelium morphogenesis of an epithelium tissue development cytoskeleton organization regulation of DNA recombination regulation of double-strand break repair regulation of cellular response to stress positive regulation of double-strand break repair via homologous recombination regulation of primary metabolic process nucleobase-containing compound metabolic process positive regulation of response to stimulus positive regulation of metabolic process positive regulation of DNA repair cellular response to stress regulation of response to stress recombinational repair positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process double-strand break repair via homologous recombination DNA repair positive regulation of DNA recombination double-strand break repair DNA recombination primary metabolic process DNA metabolic process regulation of macromolecule metabolic process nucleic acid metabolic process positive regulation of double-strand break repair regulation of DNA repair regulation of double-strand break repair via homologous recombination positive regulation of DNA metabolic process DNA damage response regulation of response to stimulus metabolic process macromolecule metabolic process regulation of metabolic process regulation of DNA metabolic process monoamine transport norepinephrine transport nitrogen compound transport organic hydroxy compound transport organic cation transport catecholamine uptake catecholamine transport regulation of norepinephrine uptake norepinephrine uptake establishment or maintenance of cell polarity protein localization to cell periphery regulation of protein localization protein localization to plasma membrane regulation of protein localization to cell periphery localization within membrane protein localization to membrane regulation of cellular localization macromolecule localization intracellular protein localization regulation of protein localization to plasma membrane regulation of protein localization to membrane negative regulation of developmental process negative regulation of biological process negative regulation of cellular process negative regulation of cell differentiation cell motility adherens junction organization adherens junction assembly cellular component biogenesis cell junction organization cellular component assembly cell junction assembly cell-cell junction assembly cell-cell junction organization transepithelial transport regulation of transepithelial transport apical protein localization positive regulation of norepinephrine uptake positive regulation of transport regulation of stem cell population maintenance stem cell population maintenance positive regulation of stem cell population maintenance positive regulation of multicellular organismal process regulation of multicellular organismal process maintenance of cell number cell population proliferation positive regulation of cell population proliferation regulation of cell population proliferation head development animal organ development brain development substantia nigra development central nervous system development midbrain development neural nucleus development nucleotide-excision repair regulation of nucleotide-excision repair positive regulation of DNA-templated transcription RNA metabolic process positive regulation of macromolecule biosynthetic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process positive regulation of biosynthetic process regulation of RNA biosynthetic process regulation of biosynthetic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process positive regulation of RNA metabolic process regulation of gene expression biosynthetic process positive regulation of RNA biosynthetic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription regulation of G0 to G1 transition G0 to G1 transition maintenance of blood-brain barrier multicellular organismal-level homeostasis homeostatic process anatomical structure homeostasis tissue homeostasis protein localization to cell junction protein localization to adherens junction protein localization to cell-cell junction transcription by RNA polymerase II regulation of transcription by RNA polymerase II regulation of cell cycle G1/S phase transition cell cycle G1/S phase transition regulation of G1/S transition of mitotic cell cycle G1/S transition of mitotic cell cycle regulation of leukocyte differentiation regulation of leukocyte activation regulation of cell activation mononuclear cell differentiation lymphocyte differentiation positive regulation of T cell differentiation regulation of cell development positive regulation of cell activation T cell activation positive regulation of leukocyte activation T cell differentiation regulation of immune system process positive regulation of immune system process positive regulation of T cell activation positive regulation of cell development regulation of leukocyte cell-cell adhesion leukocyte differentiation positive regulation of leukocyte cell-cell adhesion lymphocyte activation leukocyte cell-cell adhesion leukocyte activation positive regulation of cell-cell adhesion regulation of T cell differentiation positive regulation of lymphocyte activation positive regulation of hemopoiesis regulation of cell-cell adhesion regulation of lymphocyte differentiation regulation of multicellular organismal development hemopoiesis positive regulation of cell adhesion regulation of cell adhesion regulation of T cell activation immune system process regulation of hemopoiesis positive regulation of leukocyte differentiation positive regulation of lymphocyte differentiation regulation of lymphocyte activation chromatin organization chromatin remodeling	cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium membrane cell-cell junction anchoring junction cell junction membrane-bounded organelle ATPase complex protein-containing complex intracellular anatomical structure catalytic complex cell projection cellular anatomical structure cell leading edge plasma membrane bounded cell projection lamellipodium membrane cell-cell junction anchoring junction cell junction membrane-bounded organelle ATPase complex protein-containing complex intracellular anatomical structure catalytic complex nucleus nuclear protein-containing complex intracellular membraneless organelle chromatin chromosome intracellular membrane-bounded organelle intracellular organelle organelle membraneless organelle SWI/SNF superfamily-type complex brahma complex GBAF complex extracellular exosome extracellular vesicle extracellular organelle extracellular region vesicle extracellular membrane-bounded organelle cytoskeleton actin cytoskeleton cytoplasm cytosol SWI/SNF complex apical part of cell cluster of actin-based cell projections brush border synapse glutamatergic synapse apical junction complex adherens junction nBAF complex axon neuron projection axon terminus presynapse distal axon calyx of Held neuron projection terminus npBAF complex polymeric cytoskeletal fiber actin filament supramolecular fiber supramolecular polymer supramolecular complex cell cortex cortical cytoskeleton cell periphery membrane-enclosed lumen intracellular organelle lumen organelle lumen nuclear lumen nuclear matrix focal adhesion cell-substrate junction postsynapse postsynaptic cytoskeleton postsynaptic actin cytoskeleton NuA4 histone acetyltransferase complex transferase complex H4/H2A histone acetyltransferase complex histone acetyltransferase complex acetyltransferase complex H4 histone acetyltransferase complex protein acetyltransferase complex intracellular protein-containing complex RSC-type complex dense body plasma membrane protein-DNA complex nucleosome nucleoplasm bBAF complex cytoplasmic ribonucleoprotein granule ribonucleoprotein granule blood microparticle chromosomal region kinetochore chromosome, centromeric region condensed chromosome, centromeric region condensed chromosome Schaffer collateral - CA1 synapse tight junction ribonucleoprotein complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], L [auth e]	IPR001849	Pleckstrin homology domain	Domain
G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], L [auth e]	IPR001605	Pleckstrin homology domain, spectrin-type	Domain
G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], L [auth e]	IPR041681	Pleckstrin homology domain 9	Domain
G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], L [auth e]	IPR001715	Calponin homology domain	Domain
G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], L [auth e]	IPR011993	PH-like domain superfamily	Homologous Superfamily
G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], L [auth e]	IPR001589	Actinin-type actin-binding domain, conserved site	Conserved Site
G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], L [auth e]	IPR036872	CH domain superfamily	Homologous Superfamily
G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], L [auth e]	IPR018159	Spectrin/alpha-actinin	Repeat
G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], L [auth e]	IPR016343	Spectrin, beta subunit	Family
G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], L [auth e]	IPR002017	Spectrin repeat	Repeat
A [auth F], B [auth A], C [auth B], D [auth C], E [auth D], A [auth F], B [auth A], C [auth B], D [auth C], E [auth D], F [auth E]	IPR020902	Actin/actin-like conserved site	Conserved Site
A [auth F], B [auth A], C [auth B], D [auth C], E [auth D], A [auth F], B [auth A], C [auth B], D [auth C], E [auth D], F [auth E]	IPR004001	Actin, conserved site	Conserved Site
A [auth F], B [auth A], C [auth B], D [auth C], E [auth D], A [auth F], B [auth A], C [auth B], D [auth C], E [auth D], F [auth E]	IPR043129	ATPase, nucleotide binding domain	Homologous Superfamily
A [auth F], B [auth A], C [auth B], D [auth C], E [auth D], A [auth F], B [auth A], C [auth B], D [auth C], E [auth D], F [auth E]	IPR004000	Actin family	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], G [auth f], H [auth a], I [auth b], J [auth c], K [auth d], L [auth e]	Pharos: O15020	spinocerebellar ataxia type 5 autosomal recessive spinocerebellar ataxia 14 autosomal dominant cerebellar ataxia psoriasis spinocerebellar ataxia type 2 spinocerebellar ataxia type 6 Ataxias, Hereditary glioblastoma lung carcinoma malignant mesothelioma osteoarthritis schizophrenia spinocerebellar ataxia type 4 spinocerebellar ataxia type 7 atypical teratoid rhabdoid tumor spinocerebellar ataxia type 5 autosomal recessive spinocerebellar ataxia 14 autosomal dominant cerebellar ataxia psoriasis spinocerebellar ataxia type 2 spinocerebellar ataxia type 6 Ataxias, Hereditary glioblastoma lung carcinoma malignant mesothelioma osteoarthritis schizophrenia spinocerebellar ataxia type 4 spinocerebellar ataxia type 7 atypical teratoid rhabdoid tumor bipolar disorder Charcot-Marie-Tooth disease intellectual disability malignant ependymoma medulloblastoma pilocytic astrocytoma spinocerebellar ataxia type 1 subependymal giant cell astrocytoma cerebellar ataxia colorectal cancer lung adenocarcinoma malignant glioma neurodegenerative disease
A [auth F], B [auth A], C [auth B], D [auth C], E [auth D], A [auth F], B [auth A], C [auth B], D [auth C], E [auth D], F [auth E]	Pharos: P60709	developmental malformations-deafness-dystonia syndrome coloboma dystonic disorder Baraitser-Winter cerebrofrontofacial syndrome intellectual disability Neoplasm Invasiveness Baraitser-Winter syndrome 1 carcinoma dysostosis esophageal cancer sarcomatoid carcinoma ovarian cancer central nervous system malformation large cell medulloblastoma pancreatic intraductal papillary-mucinous neoplasm developmental malformations-deafness-dystonia syndrome coloboma dystonic disorder Baraitser-Winter cerebrofrontofacial syndrome intellectual disability Neoplasm Invasiveness Baraitser-Winter syndrome 1 carcinoma dysostosis esophageal cancer sarcomatoid carcinoma ovarian cancer central nervous system malformation large cell medulloblastoma pancreatic intraductal papillary-mucinous neoplasm liver disease plasma cell myeloma lung disease prostate disease schizophrenia drug-induced liver injury mammary neoplasms, animal arthritic joint disease stomach disease multiple endocrine neoplasia type 2A atypical teratoid rhabdoid tumor uterine disease glioblastoma obesity disorder Borst-Jadassohn intraepidermal carcinoma hepatocellular carcinoma ovarian disease cerebrovascular disorder linear and whorled nevoid hypermelanosis pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia colonic disease lung adenocarcinoma primary cutaneous amyloidosis coronary artery disease rheumatoid arthritis craniosynostosis malignant ependymoma seborrheic keratosis malignant pancreatic neoplasm skin basal cell carcinoma astrocytic tumor type 2 diabetes mellitus mycosis fungoides autoimmune disease vertebral column disease neoplasm of esophagus Becker nevus syndrome head and neck cancer hyperglycemia osteoarthritis breast disease osteosarcoma kidney disease pancreatic ductal adenocarcinoma chronic obstructive pulmonary disease pilocytic astrocytoma lung benign neoplasm primitive neuroectodermal tumor lymphatic system disease dermatomyositis malignant glioma Down syndrome skin disease medulloblastoma atherosclerosis undifferentiated carcinoma myocardial ischemia X-linked mixed deafness with perilymphatic gusher eye disease neurodegenerative disease bipolar disorder hematologic disease hypertensive disorder osteoarthritis susceptibility 1 cancer

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.