Domain Annotation: CATH CATH Database (version utative) Homepage

Chain	Domain	Class	Architecture	Topology	Homology
A	3.30.500.10	Alpha Beta	2-Layer Sandwich	Murine Class I Major Histocompatibility Complex, H2-DB	Chain A, domain 1
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins
D	3.30.500.10	Alpha Beta	2-Layer Sandwich	Murine Class I Major Histocompatibility Complex, H2-DB	Chain A, domain 1
D	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins
G	3.30.500.10	Alpha Beta	2-Layer Sandwich	Murine Class I Major Histocompatibility Complex, H2-DB	Chain A, domain 1
G	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins
E	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins
H	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Identifier	Description	Comments	Source
A, D, G	PF00129	Class I Histocompatibility antigen, domains alpha 1 and 2 (MHC_I)	Class I Histocompatibility antigen, domains alpha 1 and 2	-	Domain
A, D, G	PF06623	MHC_I C-terminus (MHC_I_C)	MHC_I C-terminus	-	Family
A, D, G	PF07654	Immunoglobulin C1-set domain (C1-set)	Immunoglobulin C1-set domain	-	Domain
B, E, H	PF07654	Immunoglobulin C1-set domain (C1-set)	Immunoglobulin C1-set domain	-	Domain
C, F, I	PF01349	Flavivirus non-structural protein NS4B (Flavi_NS4B)	Flavivirus non-structural protein NS4B	-	Family
C, F, I	PF00869	Flavivirus glycoprotein, central and dimerisation domains (Flavi_glycoprot)	Flavivirus glycoprotein, central and dimerisation domains	-	Domain
C, F, I	PF00948	Flavivirus non-structural Protein NS1 (Flavi_NS1)	Flavivirus non-structural Protein NS1	-	Family
C, F, I	PF01728	FtsJ-like methyltransferase (FtsJ)	FtsJ-like methyltransferase	-	Family
C, F, I	PF00949	Peptidase S7, Flavivirus NS3 serine protease (Peptidase_S7)	Peptidase S7, Flavivirus NS3 serine protease	-	Family
C, F, I	PF07652	Flavivirus DEAD domain (Flavi_DEAD)	Flavivirus DEAD domain	-	Domain
C, F, I	PF01350	Flavivirus non-structural protein NS4A (Flavi_NS4A)	Flavivirus non-structural protein NS4A	-	Family
C, F, I	PF01570	Flavivirus polyprotein propeptide (Flavi_propep)	Flavivirus polyprotein propeptide	-	Family
C, F, I	PF01002	Flavivirus non-structural protein NS2B (Flavi_NS2B)	Flavivirus non-structural protein NS2B	-	Family
C, F, I	PF01004	Flavivirus envelope glycoprotein M (Flavi_M)	Flavivirus envelope glycoprotein M	-	Family
C, F, I	PF01003	Flavivirus capsid protein C (Flavi_capsid)	Flavivirus capsid protein C	-	Family
C, F, I	PF02832	Flavivirus glycoprotein, immunoglobulin-like domain (Flavi_glycop_C)	Flavivirus glycoprotein, immunoglobulin-like domain	-	Domain
C, F, I	PF00972	Flavivirus RNA-directed RNA polymerase (Flavi_NS5)	Flavivirus RNA-directed RNA polymerase	-	Family
C, F, I	PF01005	Flavivirus non-structural protein NS2A (Flavi_NS2A)	Flavivirus non-structural protein NS2A	-	Family

Gene Product Annotation Gene Product Annotation

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, D, G	HLA class I histocompatibility antigen, A-11 alpha chain	binding protein binding beta-2-microglobulin binding signaling receptor binding CD8 receptor binding antigen binding amide binding peptide binding peptide antigen binding nucleic acid binding RNA binding organic cyclic compound binding heterocyclic compound binding T cell receptor binding protein-containing complex binding TAP binding TAP complex binding	detection of biotic stimulus response to external stimulus response to biotic stimulus response to bacterium detection of bacterium response to external biotic stimulus biological process involved in interspecies interaction between organisms response to stimulus detection of stimulus response to other organism detection of other organism detection of external biotic stimulus viral process biological process involved in symbiotic interaction	cell surface cellular anatomical entity intracellular anatomical structure cytoplasm endosome early endosome endosome membrane endomembrane system membrane organelle membrane cytoplasmic vesicle early endosome membrane vesicle organelle membrane-bounded organelle intracellular vesicle bounding membrane of organelle endoplasmic reticulum intracellular organelle intracellular membrane-bounded organelle endoplasmic reticulum exit site endoplasmic reticulum membrane organelle subcompartment nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum subcompartment vesicle membrane ER to Golgi transport vesicle membrane transport vesicle COPII-coated ER to Golgi transport vesicle coated vesicle transport vesicle membrane cytoplasmic vesicle membrane coated vesicle membrane extracellular region extracellular space extracellular organelle extracellular exosome extracellular vesicle Golgi apparatus Golgi stack Golgi medial cisterna Golgi cisterna Golgi apparatus subcompartment integral component of membrane integral component of endoplasmic reticulum membrane intrinsic component of membrane intrinsic component of endoplasmic reticulum membrane intrinsic component of organelle membrane integral component of organelle membrane integral component of lumenal side of endoplasmic reticulum membrane side of membrane lumenal side of endoplasmic reticulum membrane lumenal side of membrane plasma membrane integral component of plasma membrane intrinsic component of plasma membrane cell periphery protein-containing complex MHC class I peptide loading complex membrane protein complex endoplasmic reticulum protein-containing complex MHC protein complex MHC class I protein complex plasma membrane protein complex endocytic vesicle endocytic vesicle membrane phagocytic vesicle membrane phagocytic vesicle recycling endosome recycling endosome membrane
B, E, H	Beta-2-microglobulin	binding protein binding identical protein binding protein homodimerization activity protein dimerization activity	cellular process response to inorganic substance response to metal ion response to iron ion response to chemical response to stimulus cellular response to stimulus cellular response to chemical stimulus cellular response to inorganic substance cellular response to metal ion cellular response to iron ion response to iron(III) ion cellular response to iron(III) ion response to nicotine cellular response to nicotine homeostatic process chemical homeostasis ion homeostasis metal ion homeostasis iron ion homeostasis transition metal ion homeostasis cation homeostasis biological regulation regulation of biological quality inorganic ion homeostasis cell population proliferation negative regulation of cell population proliferation regulation of cell population proliferation negative regulation of biological process negative regulation of cellular process epithelial cell proliferation regulation of epithelial cell proliferation negative regulation of epithelial cell proliferation regulation of biological process regulation of cellular process negative regulation of protein binding regulation of protein binding negative regulation of molecular function regulation of binding negative regulation of binding regulation of molecular function regulation of receptor binding negative regulation of receptor binding positive regulation of molecular function positive regulation of binding regulation of ferrous iron binding positive regulation of ferrous iron binding positive regulation of protein binding positive regulation of receptor binding regulation of transferrin receptor binding positive regulation of transferrin receptor binding cellular component organization cellular component assembly protein-containing complex subunit organization cellular component biogenesis protein complex oligomerization protein homooligomerization protein tetramerization protein homotetramerization protein-containing complex assembly cellular component organization or biogenesis viral process biological process involved in symbiotic interaction biological process involved in interspecies interaction between organisms regulation of defense response to virus by virus response to cadmium ion response to drug	intracellular anatomical structure cytoplasm cytosol cellular anatomical entity endosome early endosome endomembrane system cytoplasmic vesicle endosome lumen early endosome lumen membrane-enclosed lumen vesicle organelle membrane-bounded organelle intracellular organelle organelle lumen intracellular organelle lumen intracellular vesicle endosome membrane membrane organelle membrane early endosome membrane bounding membrane of organelle endoplasmic reticulum endoplasmic reticulum lumen intracellular membrane-bounded organelle vesicle membrane ER to Golgi transport vesicle membrane transport vesicle COPII-coated ER to Golgi transport vesicle coated vesicle transport vesicle membrane cytoplasmic vesicle membrane coated vesicle membrane plasma membrane external side of plasma membrane cell surface cell periphery side of membrane extracellular region extracellular space extracellular organelle extracellular exosome extracellular vesicle focal adhesion cell junction cell-substrate junction anchoring junction Golgi apparatus protein-containing complex receptor complex membrane protein complex plasma membrane protein complex plasma membrane signaling receptor complex HFE-transferrin receptor complex endoplasmic reticulum membrane integral component of membrane integral component of endoplasmic reticulum membrane intrinsic component of membrane intrinsic component of endoplasmic reticulum membrane intrinsic component of organelle membrane integral component of organelle membrane organelle subcompartment nuclear outer membrane-endoplasmic reticulum membrane network MHC class I peptide loading complex endoplasmic reticulum subcompartment endoplasmic reticulum protein-containing complex MHC protein complex MHC class I protein complex endocytic vesicle endocytic vesicle membrane phagocytic vesicle membrane phagocytic vesicle recycling endosome recycling endosome membrane secretory granule vesicle lumen secretory granule lumen specific granule lumen specific granule cytoplasmic vesicle lumen secretory vesicle tertiary granule tertiary granule lumen
C, F, I	GTS3 peptide	nucleic acid binding RNA binding double-stranded RNA binding binding organic cyclic compound binding heterocyclic compound binding transporter activity ion channel activity ion transmembrane transporter activity channel activity inorganic molecular entity transmembrane transporter activity passive transmembrane transporter activity transmembrane transporter activity ion binding cation binding metal ion binding catalytic activity mRNA (guanine-N7-)-methyltransferase activity methyltransferase activity N-methyltransferase activity RNA methyltransferase activity mRNA methyltransferase activity S-adenosylmethionine-dependent methyltransferase activity transferase activity transferase activity, transferring one-carbon groups catalytic activity, acting on RNA mRNA (nucleoside-2'-O-)-methyltransferase activity O-methyltransferase activity protein binding protein dimerization activity RNA helicase activity helicase activity pyrophosphatase activity hydrolase activity hydrolase activity, acting on acid anhydrides hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides ATPase activity nucleoside-triphosphatase activity RNA-directed 5'-3' RNA polymerase activity transferase activity, transferring phosphorus-containing groups nucleotidyltransferase activity 5'-3' RNA polymerase activity RNA polymerase activity endopeptidase activity serine-type endopeptidase activity peptidase activity serine-type peptidase activity serine hydrolase activity catalytic activity, acting on a protein structural molecule activity	cellular process viral process cellular component organization viral life cycle fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell biological process involved in symbiotic interaction entry into host biological process involved in interspecies interaction between organisms multi-organism cellular process multi-organism membrane fusion multi-organism membrane organization viral entry into host cell biological process involved in interaction with host multi-organism process movement in host environment membrane organization membrane fusion cellular component organization or biogenesis modulation of process of other organism pore formation in membrane of other organism pore formation by virus in membrane of host cell modulation by symbiont of host process pore formation in membrane of other organism during symbiotic interaction pore formation in membrane of host by symbiont membrane disruption in other organism modulation of process of other organism involved in symbiotic interaction modification by symbiont of host cell membrane modification by symbiont of host cellular component modification by symbiont of host structure modification of structure of other organism involved in symbiotic interaction modification of cellular component in other organism involved in symbiotic interaction modification by organism of membrane in other organism involved in symbiotic interaction cellular component assembly protein-containing complex subunit organization cellular component biogenesis protein complex oligomerization protein-containing complex assembly modulation by virus of host process modulation by virus of host cellular process modulation by virus of host molecular function suppression by virus of host molecular function suppression by virus of host JAK-STAT cascade suppression by virus of host STAT activity suppression by virus of host STAT2 activity modulation by symbiont of host cellular process negative regulation of molecular function modulation of molecular function in other organism negative regulation of molecular function in other organism modulation of signal transduction in other organism regulation of biological process regulation of cellular process modulation by symbiont of host signal transduction pathway suppression by symbiont of host signal transduction pathway modulation by symbiont of host molecular function negative regulation by symbiont of host molecular function negative regulation of molecular function in other organism involved in symbiotic interaction modulation of molecular function in other organism involved in symbiotic interaction biological regulation regulation of molecular function viral genome replication viral RNA genome replication virion attachment to host cell biological adhesion adhesion of symbiont to host adhesion of symbiont to host cell	extracellular region cellular anatomical entity host cellular component host cell cytoplasm host cell part host cell membrane host cell endomembrane system host intracellular part host intracellular organelle host intracellular membrane-bounded organelle host cell cytoplasm part host intracellular region host cell host cell endoplasmic reticulum host cell endoplasmic reticulum membrane host cell mitochondrion host cell nucleus host cell perinuclear region of cytoplasm membrane integral component of membrane intrinsic component of membrane integral to membrane of host cell virion viral capsid virion part viral envelope viral membrane virion membrane

RCSB PDB is funded by the National Science Foundation (DBI-1832184), 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.