3CW2

Crystal structure of the intact archaeal translation initiation factor 2 from Sulfolobus solfataricus .

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3cw2a2	All beta proteins	Reductase/isomerase/elongation factor common domain	Translation proteins	automated matches	automated matches	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
A	d3cw2a3	All beta proteins	Elongation factor/aminomethyltransferase common domain	EF-Tu/eEF-1alpha/eIF2-gamma C-terminal domain	automated matches	automated matches	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
A	d3cw2a1	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	G proteins	automated matches	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
B	d3cw2b2	All beta proteins	Reductase/isomerase/elongation factor common domain	Translation proteins	automated matches	automated matches	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
B	d3cw2b3	All beta proteins	Elongation factor/aminomethyltransferase common domain	EF-Tu/eEF-1alpha/eIF2-gamma C-terminal domain	automated matches	automated matches	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
B	d3cw2b1	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	G proteins	automated matches	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
G [auth E]	d3cw2e2	All beta proteins	Reductase/isomerase/elongation factor common domain	Translation proteins	automated matches	automated matches	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
G [auth E]	d3cw2e3	All beta proteins	Elongation factor/aminomethyltransferase common domain	EF-Tu/eEF-1alpha/eIF2-gamma C-terminal domain	automated matches	automated matches	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
G [auth E]	d3cw2e1	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	G proteins	automated matches	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
H [auth F]	d3cw2f2	All beta proteins	Reductase/isomerase/elongation factor common domain	Translation proteins	automated matches	automated matches	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
H [auth F]	d3cw2f3	All beta proteins	Elongation factor/aminomethyltransferase common domain	EF-Tu/eEF-1alpha/eIF2-gamma C-terminal domain	automated matches	automated matches	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
H [auth F]	d3cw2f1	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	G proteins	automated matches	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
C	d3cw2c2	All alpha proteins	SAM domain-like	eIF2alpha middle domain-like	eIF2alpha middle domain-like	Eukaryotic initiation factor 2alpha, eIF2alpha, domain 2	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
C	d3cw2c1	All beta proteins	OB-fold	Nucleic acid-binding proteins	Cold shock DNA-binding domain-like	Eukaryotic initiation factor 2alpha, eIF2alpha, N-terminal domain	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
C	d3cw2c3	Alpha and beta proteins (a+b)	Ferredoxin-like	eIF-2-alpha, C-terminal domain	eIF-2-alpha, C-terminal domain	eIF-2-alpha, C-terminal domain	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
D	d3cw2d2	All alpha proteins	SAM domain-like	eIF2alpha middle domain-like	eIF2alpha middle domain-like	Eukaryotic initiation factor 2alpha, eIF2alpha, domain 2	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
D	d3cw2d1	All beta proteins	OB-fold	Nucleic acid-binding proteins	Cold shock DNA-binding domain-like	Eukaryotic initiation factor 2alpha, eIF2alpha, N-terminal domain	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
D	d3cw2d3	Alpha and beta proteins (a+b)	Ferredoxin-like	eIF-2-alpha, C-terminal domain	eIF-2-alpha, C-terminal domain	eIF-2-alpha, C-terminal domain	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
I [auth G]	d3cw2g2	All alpha proteins	SAM domain-like	eIF2alpha middle domain-like	eIF2alpha middle domain-like	Eukaryotic initiation factor 2alpha, eIF2alpha, domain 2	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
I [auth G]	d3cw2g1	All beta proteins	OB-fold	Nucleic acid-binding proteins	Cold shock DNA-binding domain-like	Eukaryotic initiation factor 2alpha, eIF2alpha, N-terminal domain	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
I [auth G]	d3cw2g3	Alpha and beta proteins (a+b)	Ferredoxin-like	eIF-2-alpha, C-terminal domain	eIF-2-alpha, C-terminal domain	eIF-2-alpha, C-terminal domain	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
J [auth H]	d3cw2h2	All alpha proteins	SAM domain-like	eIF2alpha middle domain-like	eIF2alpha middle domain-like	Eukaryotic initiation factor 2alpha, eIF2alpha, domain 2	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
J [auth H]	d3cw2h1	All beta proteins	OB-fold	Nucleic acid-binding proteins	Cold shock DNA-binding domain-like	Eukaryotic initiation factor 2alpha, eIF2alpha, N-terminal domain	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
J [auth H]	d3cw2h3	Alpha and beta proteins (a+b)	Ferredoxin-like	eIF-2-alpha, C-terminal domain	eIF-2-alpha, C-terminal domain	eIF-2-alpha, C-terminal domain	(Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	EF-Tu post-G domain-like	8056817	3002024	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Ras-like P-loop GTPases	8056814	3002022	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	EF-Tu post-G domain-like	8056815	3002024	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	EF-Tu post-G domain-like	8056815	3002024	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	EF-Tu post-G domain-like	8056817	3002024	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Ras-like P-loop GTPases	8056814	3002022	SCOP2B (2022-06-29)
G [auth E]	SCOP2B Superfamily	EF-Tu post-G domain-like	8056815	3002024	SCOP2B (2022-06-29)
G [auth E]	SCOP2B Superfamily	Ras-like P-loop GTPases	8056814	3002022	SCOP2B (2022-06-29)
G [auth E]	SCOP2B Superfamily	EF-Tu post-G domain-like	8056817	3002024	SCOP2B (2022-06-29)
H [auth F]	SCOP2B Superfamily	Ras-like P-loop GTPases	8056814	3002022	SCOP2B (2022-06-29)
H [auth F]	SCOP2B Superfamily	EF-Tu post-G domain-like	8056815	3002024	SCOP2B (2022-06-29)
H [auth F]	SCOP2B Superfamily	EF-Tu post-G domain-like	8056817	3002024	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	eIF2alpha middle domain-like	8037022	3001761	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	eIF-2-alpha C-terminal domain	8036122	3001618	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Nucleic acid-binding proteins	8037024	3000135	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	eIF-2-alpha C-terminal domain	8036122	3001618	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	eIF2alpha middle domain-like	8037022	3001761	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Nucleic acid-binding proteins	8037024	3000135	SCOP2B (2022-06-29)
I [auth G]	SCOP2B Superfamily	Nucleic acid-binding proteins	8037024	3000135	SCOP2B (2022-06-29)
I [auth G]	SCOP2B Superfamily	eIF-2-alpha C-terminal domain	8036122	3001618	SCOP2B (2022-06-29)
I [auth G]	SCOP2B Superfamily	eIF2alpha middle domain-like	8037022	3001761	SCOP2B (2022-06-29)
J [auth H]	SCOP2B Superfamily	eIF-2-alpha C-terminal domain	8036122	3001618	SCOP2B (2022-06-29)
J [auth H]	SCOP2B Superfamily	Nucleic acid-binding proteins	8037024	3000135	SCOP2B (2022-06-29)
J [auth H]	SCOP2B Superfamily	eIF2alpha middle domain-like	8037022	3001761	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)
E [auth K]	PF01873	e3cw2K3	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF01873	ECOD (1.6)
E [auth K]	F_UNCLASSIFIED	e3cw2K4	A: few secondary structure elements	X: Rubredoxin-like	H: Zinc-binding domain of translation initiation factor 2 beta (From Topology)	T: Zinc-binding domain of translation initiation factor 2 beta	F: F_UNCLASSIFIED	ECOD (1.6)
K [auth M]	PF01873	e3cw2M3	A: alpha arrays	X: HTH	H: HTH	T: winged	F: PF01873	ECOD (1.6)
K [auth M]	PF01873	e3cw2M2	A: few secondary structure elements	X: Rubredoxin-like	H: Zinc-binding domain of translation initiation factor 2 beta (From Topology)	T: Zinc-binding domain of translation initiation factor 2 beta	F: PF01873	ECOD (1.6)
A	F_UNCLASSIFIED	e3cw2A1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: F_UNCLASSIFIED	ECOD (1.6)
A	PF09173	e3cw2A3	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Aminomethyltransferase beta-barrel domain	F: PF09173	ECOD (1.6)
A	PF00009	e3cw2A2	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PF00009	ECOD (1.6)
A	F_UNCLASSIFIED	e3cw2A4	A: few secondary structure elements	X: Rubredoxin-like	H: Rubredoxin-related	T: Rubredoxin-related	F: F_UNCLASSIFIED	ECOD (1.6)
B	F_UNCLASSIFIED	e3cw2B3	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: F_UNCLASSIFIED	ECOD (1.6)
B	PF09173	e3cw2B4	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Aminomethyltransferase beta-barrel domain	F: PF09173	ECOD (1.6)
B	PF00009	e3cw2B1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PF00009	ECOD (1.6)
B	F_UNCLASSIFIED	e3cw2B2	A: few secondary structure elements	X: Rubredoxin-like	H: Rubredoxin-related	T: Rubredoxin-related	F: F_UNCLASSIFIED	ECOD (1.6)
G [auth E]	F_UNCLASSIFIED	e3cw2E2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: F_UNCLASSIFIED	ECOD (1.6)
G [auth E]	PF09173	e3cw2E3	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Aminomethyltransferase beta-barrel domain	F: PF09173	ECOD (1.6)
G [auth E]	PF00009	e3cw2E1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PF00009	ECOD (1.6)
G [auth E]	F_UNCLASSIFIED	e3cw2E4	A: few secondary structure elements	X: Rubredoxin-like	H: Rubredoxin-related	T: Rubredoxin-related	F: F_UNCLASSIFIED	ECOD (1.6)
H [auth F]	F_UNCLASSIFIED	e3cw2F2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: F_UNCLASSIFIED	ECOD (1.6)
H [auth F]	PF09173	e3cw2F4	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Aminomethyltransferase beta-barrel domain	F: PF09173	ECOD (1.6)
H [auth F]	PF00009	e3cw2F3	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PF00009	ECOD (1.6)
H [auth F]	F_UNCLASSIFIED	e3cw2F1	A: few secondary structure elements	X: Rubredoxin-like	H: Rubredoxin-related	T: Rubredoxin-related	F: F_UNCLASSIFIED	ECOD (1.6)
C	PF00575	e3cw2C6	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: PF00575	ECOD (1.6)
C	PF07541	e3cw2C4	A: alpha arrays	X: HhH/H2TH	H: eIF2alpha middle domain (From Topology)	T: eIF2alpha middle domain	F: PF07541	ECOD (1.6)
C	PF07541	e3cw2C5	A: a+b two layers	X: Alpha-beta plaits	H: eIF-2-alpha, C-terminal domain (From Topology)	T: eIF-2-alpha, C-terminal domain	F: PF07541	ECOD (1.6)
D	PF00575	e3cw2D6	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: PF00575	ECOD (1.6)
D	PF07541	e3cw2D4	A: alpha arrays	X: HhH/H2TH	H: eIF2alpha middle domain (From Topology)	T: eIF2alpha middle domain	F: PF07541	ECOD (1.6)
D	PF07541	e3cw2D5	A: a+b two layers	X: Alpha-beta plaits	H: eIF-2-alpha, C-terminal domain (From Topology)	T: eIF-2-alpha, C-terminal domain	F: PF07541	ECOD (1.6)
I [auth G]	PF00575	e3cw2G6	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: PF00575	ECOD (1.6)
I [auth G]	PF07541	e3cw2G4	A: alpha arrays	X: HhH/H2TH	H: eIF2alpha middle domain (From Topology)	T: eIF2alpha middle domain	F: PF07541	ECOD (1.6)
I [auth G]	PF07541	e3cw2G5	A: a+b two layers	X: Alpha-beta plaits	H: eIF-2-alpha, C-terminal domain (From Topology)	T: eIF-2-alpha, C-terminal domain	F: PF07541	ECOD (1.6)
J [auth H]	PF00575	e3cw2H6	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: PF00575	ECOD (1.6)
J [auth H]	PF07541	e3cw2H4	A: alpha arrays	X: HhH/H2TH	H: eIF2alpha middle domain (From Topology)	T: eIF2alpha middle domain	F: PF07541	ECOD (1.6)
J [auth H]	PF07541	e3cw2H5	A: a+b two layers	X: Alpha-beta plaits	H: eIF-2-alpha, C-terminal domain (From Topology)	T: eIF-2-alpha, C-terminal domain	F: PF07541	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
A	2.40.30.10	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)
B	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
B	2.40.30.10	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)
G [auth E]	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
G [auth E]	2.40.30.10	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)
H [auth F]	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
H [auth F]	2.40.30.10	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)
C	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)
C	1.10.150.190	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)
C	3.30.70.1130	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	EIF_2_alpha	CATH (4.3.0)
D	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)
D	1.10.150.190	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)
D	3.30.70.1130	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	EIF_2_alpha	CATH (4.3.0)
I [auth G]	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)
I [auth G]	1.10.150.190	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)
I [auth G]	3.30.70.1130	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	EIF_2_alpha	CATH (4.3.0)
J [auth H]	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)
J [auth H]	1.10.150.190	Mainly Alpha	Orthogonal Bundle	DNA polymerase	domain 1	CATH (4.3.0)
J [auth H]	3.30.70.1130	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	EIF_2_alpha	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
E [auth K], F [auth L], K [auth M], L [auth N]	PF01873	Domain found in IF2B/IF5 (eIF-5_eIF-2B)	Domain found in IF2B/IF5	-	Family
A, B, G [auth E], H [auth F]	PF00009	Elongation factor Tu GTP binding domain (GTP_EFTU)	Elongation factor Tu GTP binding domain	This domain contains a P-loop motif, also found in several other families such as Pfam:PF00071, Pfam:PF00025 and Pfam:PF00063. Elongation factor Tu consists of three structural domains, this plus two C-terminal beta barrel domains.	Domain
A, B, G [auth E], H [auth F]	PF09173	Initiation factor eIF2 gamma, C terminal (eIF2_C)	Initiation factor eIF2 gamma, C terminal	Members of this family, which are found in the initiation factors eIF2 and EF-Tu, adopt a structure consisting of a beta barrel with Greek key topology. They are required for formation of the ternary complex with GTP and initiator tRNA [1].	Domain
C, D, I [auth G], J [auth H]	PF07541	Eukaryotic translation initiation factor 2 alpha subunit (EIF_2_alpha)	Eukaryotic translation initiation factor 2 alpha subunit	-	Family
C, D, I [auth G], J [auth H]	PF00575	S1 RNA binding domain (S1)	S1 RNA binding domain	The S1 domain occurs in a wide range of RNA associated proteins. It is structurally similar to cold shock protein which binds nucleic acids. The S1 domain has an OB-fold structure.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E [auth K], F [auth L], K [auth M], L [auth N]	Translation initiation factor 2 subunit beta	translation regulator activity binding organic cyclic compound binding translation regulator activity, nucleic acid binding nucleic acid binding translation initiation factor activity translation factor activity, RNA binding	ribonucleoprotein complex biogenesis cellular biosynthetic process organonitrogen compound biosynthetic process protein-RNA complex assembly cellular component organization cellular component biogenesis protein-RNA complex organization cellular component assembly organic substance metabolic process protein-containing complex assembly organic substance biosynthetic process translational initiation cellular component organization or biogenesis protein metabolic process ribonucleoprotein complex biogenesis cellular biosynthetic process organonitrogen compound biosynthetic process protein-RNA complex assembly cellular component organization cellular component biogenesis protein-RNA complex organization cellular component assembly organic substance metabolic process protein-containing complex assembly organic substance biosynthetic process translational initiation cellular component organization or biogenesis protein metabolic process formation of translation preinitiation complex organonitrogen compound metabolic process protein-containing complex organization cellular metabolic process primary metabolic process translation gene expression macromolecule biosynthetic process biosynthetic process cytoplasmic translation cellular process cytoplasmic translational initiation metabolic process macromolecule metabolic process formation of cytoplasmic translation initiation complex	-
A, B, G [auth E], H [auth F]	Translation initiation factor 2 subunit gamma	translation regulator activity binding organic cyclic compound binding translation regulator activity, nucleic acid binding nucleic acid binding translation initiation factor activity translation factor activity, RNA binding translation elongation factor activity RNA binding tRNA binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding translation regulator activity binding organic cyclic compound binding translation regulator activity, nucleic acid binding nucleic acid binding translation initiation factor activity translation factor activity, RNA binding translation elongation factor activity RNA binding tRNA binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding cation binding metal ion binding pyrophosphatase activity GTPase 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	ribonucleoprotein complex biogenesis cellular biosynthetic process organonitrogen compound biosynthetic process protein-RNA complex assembly cellular component organization cellular component biogenesis protein-RNA complex organization cellular component assembly organic substance metabolic process protein-containing complex assembly organic substance biosynthetic process translational initiation cellular component organization or biogenesis protein metabolic process ribonucleoprotein complex biogenesis cellular biosynthetic process organonitrogen compound biosynthetic process protein-RNA complex assembly cellular component organization cellular component biogenesis protein-RNA complex organization cellular component assembly organic substance metabolic process protein-containing complex assembly organic substance biosynthetic process translational initiation cellular component organization or biogenesis protein metabolic process formation of translation preinitiation complex organonitrogen compound metabolic process protein-containing complex organization cellular metabolic process primary metabolic process translation gene expression macromolecule biosynthetic process biosynthetic process cytoplasmic translation cellular process cytoplasmic translational initiation metabolic process macromolecule metabolic process	-
C, D, I [auth G], J [auth H]	Translation initiation factor 2 subunit alpha	translation regulator activity binding organic cyclic compound binding translation regulator activity, nucleic acid binding nucleic acid binding translation initiation factor activity translation factor activity, RNA binding RNA binding ribonucleoprotein complex binding protein-containing complex binding ribosome binding	organonitrogen compound metabolic process cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process primary metabolic process translation gene expression macromolecule biosynthetic process organic substance metabolic process biosynthetic process organic substance biosynthetic process translational initiation metabolic process cellular process organonitrogen compound metabolic process cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process primary metabolic process translation gene expression macromolecule biosynthetic process organic substance metabolic process biosynthetic process organic substance biosynthetic process translational initiation metabolic process cellular process protein metabolic process macromolecule metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
E [auth K], F [auth L], K [auth M], L [auth N]	IPR016190	Translation initiation factor IF2/IF5, zinc-binding	Homologous Superfamily
E [auth K], F [auth L], K [auth M], L [auth N]	IPR002735	Translation initiation factor IF2/IF5 domain	Domain
E [auth K], F [auth L], K [auth M], L [auth N]	IPR016189	Translation initiation factor IF2/IF5, N-terminal	Homologous Superfamily
E [auth K], F [auth L], K [auth M], L [auth N]	IPR004458	Translation initiation factor 2, beta subunit	Family
E [auth K], F [auth L], K [auth M], L [auth N]	IPR045196	Translation initiation factor IF2/IF5	Family
A, B, G [auth E], H [auth F]	IPR022424	Translation initiation factor 2, gamma subunit	Family
A, B, G [auth E], H [auth F]	IPR000795	Translational (tr)-type GTP-binding domain	Domain
A, B, G [auth E], H [auth F]	IPR009001	Translation elongation factor EF1A/initiation factor IF2gamma, C-terminal	Homologous Superfamily
A, B, G [auth E], H [auth F]	IPR044128	Initiation factor eIF2 gamma, GTP-binding domain	Domain
A, B, G [auth E], H [auth F]	IPR015256	Initiation factor eIF2 gamma, C-terminal	Domain
A, B, G [auth E], H [auth F]	IPR009000	Translation protein, beta-barrel domain superfamily	Homologous Superfamily
A, B, G [auth E], H [auth F]	IPR005225	Small GTP-binding protein domain	Domain
A, B, G [auth E], H [auth F]	IPR044127	Initiation factor eIF2 gamma, domain 2	Domain
A, B, G [auth E], H [auth F]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
C, D, I [auth G], J [auth H]	IPR003029	S1 domain	Domain
C, D, I [auth G], J [auth H]	IPR044126	IF2a, S1-like domain	Domain
C, D, I [auth G], J [auth H]	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
C, D, I [auth G], J [auth H]	IPR024055	Translation initiation factor 2, alpha subunit, C-terminal	Homologous Superfamily
C, D, I [auth G], J [auth H]	IPR024054	Translation initiation factor 2, alpha subunit, middle domain superfamily	Homologous Superfamily
C, D, I [auth G], J [auth H]	IPR011488	Translation initiation factor 2, alpha subunit	Family
C, D, I [auth G], J [auth H]	IPR022964	Translation initiation factor 2, alpha subunit, archaeal	Family