7ST3

Consequences of HLA single chain trimer mutations on peptide presentation and binding affinity

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	C1-set_2	e7st3A2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)
A	MHC_I	e7st3A1	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: MHC_I	ECOD (1.6)
Q	C1-set_2	e7st3Q3	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)
Q	MHC_I	e7st3Q2	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: MHC_I	ECOD (1.6)
W	C1-set_2	e7st3W2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)
W	MHC_I	e7st3W1	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: MHC_I	ECOD (1.6)
AA [auth a]	C1-set_2	e7st3a3	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)
AA [auth a]	MHC_I	e7st3a2	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: MHC_I	ECOD (1.6)
C	C1-set_2	e7st3C3	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)
C	MHC_I	e7st3C1	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: MHC_I	ECOD (1.6)
CA [auth c]	C1-set_2	e7st3c2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)
CA [auth c]	MHC_I	e7st3c3	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: MHC_I	ECOD (1.6)
E	C1-set_2	e7st3E2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)
E	MHC_I	e7st3E1	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: MHC_I	ECOD (1.6)
EA [auth e]	C1-set_2	e7st3e1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)
EA [auth e]	MHC_I	e7st3e3	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: MHC_I	ECOD (1.6)
G	C1-set_2	e7st3G1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)
G	MHC_I	e7st3G2	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: MHC_I	ECOD (1.6)
I	C1-set_2	e7st3I2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)
I	MHC_I	e7st3I1	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: MHC_I	ECOD (1.6)
K	C1-set_2	e7st3K1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)
K	MHC_I	e7st3K3	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: MHC_I	ECOD (1.6)
M	C1-set_2	e7st3M2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)
M	MHC_I	e7st3M3	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: MHC_I	ECOD (1.6)
O	C1-set_2	e7st3O2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)
O	MHC_I	e7st3O1	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: MHC_I	ECOD (1.6)
S	C1-set_2	e7st3S1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)
S	MHC_I	e7st3S3	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: MHC_I	ECOD (1.6)
U	C1-set_2	e7st3U2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)
U	MHC_I	e7st3U1	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: MHC_I	ECOD (1.6)
Y	C1-set_2	e7st3Y2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_2	ECOD (1.6)
Y	MHC_I	e7st3Y1	A: a+b two layers	X: MHC antigen-recognition domain (From Topology)	H: MHC antigen-recognition domain (From Topology)	T: MHC antigen-recognition domain	F: MHC_I	ECOD (1.6)
BA [auth b]	V-set_8	e7st3b1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
B	V-set_8	e7st3B1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
D	V-set_8	e7st3D1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
DA [auth d]	V-set_8	e7st3d1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
F	V-set_8	e7st3F1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
FA [auth f]	V-set_8	e7st3f1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
H	V-set_8	e7st3H1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
J	V-set_8	e7st3J1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
L	V-set_8	e7st3L1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
N	V-set_8	e7st3N1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
P	V-set_8	e7st3P1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
R	V-set_8	e7st3R1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
T	V-set_8	e7st3T1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
V	V-set_8	e7st3V1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
X	V-set_8	e7st3X1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
Z	V-set_8	e7st3Z1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B, BA [auth b], D, DA [auth d], F, B, BA [auth b], D, DA [auth d], F, FA [auth f], H, J, L, N, P, R, T, V, X, Z	Heavy Chain	IGHV1	-	protein e7 peptide,beta-2-microglobulin,mhc class i antigenchimera	SAbDab (2024-12-13)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	PF00129	Class I Histocompatibility antigen, domains alpha 1 and 2 (MHC_I)	Class I Histocompatibility antigen, domains alpha 1 and 2	-	Domain
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	PF07654	Immunoglobulin C1-set domain (C1-set)	Immunoglobulin C1-set domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	Protein E7 peptide,Beta-2-microglobulin,MHC class I antigen chimera	DNA binding binding organic cyclic compound binding nucleic acid binding protein binding protein domain specific binding cation binding transition metal ion binding ion binding cadmium ion binding metal ion binding small molecule binding transcription factor binding DNA-binding transcription factor binding DNA binding binding organic cyclic compound binding nucleic acid binding protein binding protein domain specific binding cation binding transition metal ion binding ion binding cadmium ion binding metal ion binding small molecule binding transcription factor binding DNA-binding transcription factor binding transcription regulator activity DNA-binding transcription factor activity zinc ion binding	antigen processing and presentation immune system process antigen processing and presentation of peptide antigen via MHC class I antigen processing and presentation of peptide antigen response to stimulus immune response symbiont-mediated perturbation of host defense response biological process involved in interspecies interaction between organisms symbiont-mediated perturbation of host process viral process modulation by virus of host process virus-mediated perturbation of host defense response modulation of process of another organism biological process involved in interaction with host antigen processing and presentation immune system process antigen processing and presentation of peptide antigen via MHC class I antigen processing and presentation of peptide antigen response to stimulus immune response symbiont-mediated perturbation of host defense response biological process involved in interspecies interaction between organisms symbiont-mediated perturbation of host process viral process modulation by virus of host process virus-mediated perturbation of host defense response modulation of process of another organism biological process involved in interaction with host modulation by virus of host cellular process biological process involved in symbiotic interaction positive regulation of organelle organization regulation of cytoskeleton organization regulation of cellular component organization regulation of cellular process positive regulation of cellular component organization regulation of actin filament-based process regulation of cellular component size positive regulation of biological process cellular component organization cellular component biogenesis regulation of protein-containing complex assembly positive regulation of protein-containing complex assembly cellular component assembly positive regulation of protein polymerization protein-containing complex assembly actin filament-based process cellular component organization or biogenesis regulation of actin filament polymerization regulation of biological quality positive regulation of cellular process protein polymerization actin polymerization or depolymerization regulation of biological process regulation of actin filament organization actin filament polymerization actin cytoskeleton organization protein-containing complex organization positive regulation of cellular component biogenesis positive regulation of cytoskeleton organization biological regulation actin filament organization regulation of actin polymerization or depolymerization positive regulation of supramolecular fiber organization regulation of cellular component biogenesis regulation of organelle organization organelle organization regulation of protein polymerization regulation of actin filament length regulation of actin cytoskeleton organization regulation of supramolecular fiber organization cellular process supramolecular fiber organization positive regulation of actin filament polymerization cytoskeleton organization regulation of anatomical structure size symbiont-mediated perturbation of host cellular process response to biotic stimulus symbiont-mediated suppression of host immune response symbiont-mediated suppression of host innate immune response symbiont-mediated suppression of host defenses symbiont-mediated perturbation of host innate immune response response to host response to external biotic stimulus symbiont-mediated perturbation of host signal transduction pathway response to host defenses symbiont-mediated suppression of host JAK-STAT cascade symbiont-mediated suppression of host JAK-STAT cascade via inhibition of host IRF9 activity response to other organism symbiont-mediated perturbation of host immune response symbiont-mediated perturbation of host defenses response to defenses of other organism response to external stimulus symbiont-mediated suppression of host signal transduction pathway symbiont-mediated perturbation of host cell cycle progression symbiont-mediated perturbation of host cell cycle G1/S transition checkpoint RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process biosynthetic process metabolic process macromolecule metabolic process symbiont-mediated suppression of host interferon-mediated signaling pathway symbiont-mediated suppression of host type I interferon-mediated signaling pathway symbiont-mediated perturbation of host transcription symbiont-mediated suppression of host apoptosis symbiont-mediated suppression of host programmed cell death	MHC class I protein complex MHC protein complex cell periphery protein-containing complex cellular anatomical structure plasma membrane protein complex membrane plasma membrane membrane protein complex extracellular region host intracellular membrane-bounded organelle host cellular component host intracellular part host cell part MHC class I protein complex MHC protein complex cell periphery protein-containing complex cellular anatomical structure plasma membrane protein complex membrane plasma membrane membrane protein complex extracellular region host intracellular membrane-bounded organelle host cellular component host intracellular part host cell part host intracellular region host cell nucleus host intracellular organelle host cell cytoplasm membrane-bounded organelle intracellular anatomical structure organelle subcompartment lumenal side of endoplasmic reticulum membrane intracellular membrane-bounded organelle endomembrane system side of membrane lumenal side of membrane endoplasmic reticulum subcompartment intracellular organelle organelle nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum cytoplasm organelle membrane endoplasmic reticulum membrane intracellular vesicle phagocytic vesicle phagocytic vesicle membrane cytoplasmic vesicle membrane bounding membrane of organelle cytoplasmic vesicle vesicle membrane endocytic vesicle membrane vesicle endocytic vesicle endosome membrane endosome recycling endosome recycling endosome membrane early endosome early endosome membrane cell surface transport vesicle transport vesicle membrane coated vesicle membrane COPII-coated ER to Golgi transport vesicle ER to Golgi transport vesicle membrane coated vesicle
B, BA [auth b], D, DA [auth d], F, B, BA [auth b], D, DA [auth d], F, FA [auth f], H, J, L, N, P, R, T, V, X, Z	VHH	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	IPR003597	Immunoglobulin C1-set	Domain
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	IPR015707	Beta-2-Microglobulin	Family
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	IPR007110	Immunoglobulin-like domain	Domain
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	IPR050160	Major Histocompatibility Complex/Immunoglobulin	Family
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	IPR003006	Immunoglobulin/major histocompatibility complex, conserved site	Conserved Site
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	IPR000148	Papillomavirus E7	Family
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	IPR050208	Antigen-presenting and immune regulatory MHC class I-related	Family
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	IPR037055	MHC class I-like antigen recognition-like superfamily	Homologous Superfamily
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	IPR003597	Immunoglobulin C1-set	Domain
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	IPR010579	MHC class I, alpha chain, C-terminal	Domain
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	IPR011161	MHC class I-like antigen recognition-like	Domain
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	IPR011162	MHC classes I/II-like antigen recognition protein	Homologous Superfamily
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	IPR007110	Immunoglobulin-like domain	Domain
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	IPR001039	MHC class I alpha chain, alpha1 alpha2 domains	Domain
A, AA [auth a], C, CA [auth c], E, A, AA [auth a], C, CA [auth c], E, EA [auth e], G, I, K, M, O, Q, S, U, W, Y	IPR003006	Immunoglobulin/major histocompatibility complex, conserved site	Conserved Site