7ZN2 | pdb_00007zn2

Tail tip of siphophage T5 : full complex after interaction with its bacterial receptor FhuA

External Resource: Annotation

Domain Annotation: ECOD Classification
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)
S [auth Y]	EUF07531	e7zn2Y2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Phage tail proteins	F: EUF07531	ECOD (1.6)
S [auth Y]	EUF07532	e7zn2Y1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Phage tail proteins	F: EUF07532	ECOD (1.6)
R [auth X]	EUF07531	e7zn2X2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Phage tail proteins	F: EUF07531	ECOD (1.6)
R [auth X]	EUF07532	e7zn2X1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Phage tail proteins	F: EUF07532	ECOD (1.6)
L [auth a]	EUF07531	e7zn2a2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Phage tail proteins	F: EUF07531	ECOD (1.6)
L [auth a]	EUF07532	e7zn2a1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Phage tail proteins	F: EUF07532	ECOD (1.6)
JA [auth Z]	EUF07531	e7zn2Z1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Phage tail proteins	F: EUF07531	ECOD (1.6)
JA [auth Z]	EUF07532	e7zn2Z2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Phage tail proteins	F: EUF07532	ECOD (1.6)
IA [auth V]	EUF07531	e7zn2V1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Phage tail proteins	F: EUF07531	ECOD (1.6)
IA [auth V]	EUF07532	e7zn2V2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Phage tail proteins	F: EUF07532	ECOD (1.6)
AA [auth W]	EUF07531	e7zn2W2	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Phage tail proteins	F: EUF07531	ECOD (1.6)
AA [auth W]	EUF07532	e7zn2W1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Phage tail proteins	F: EUF07532	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], W [auth C]	PF21430	Distal tail protein pb9, B domain (DTP-pb9_B-dom)	Distal tail protein pb9, B domain	This entry includes phage distal tail proteins which form a hexameric ring located at the tail tube end, such as pb9 from bacteriophage T5 [1]. pb9 consists of two domains, A and B. This entry represents domain B which adopts an OB fold and is insert ...	This entry includes phage distal tail proteins which form a hexameric ring located at the tail tube end, such as pb9 from bacteriophage T5 [1]. pb9 consists of two domains, A and B. This entry represents domain B which adopts an OB fold and is inserted in domain A [1].	Domain
DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], W [auth C]	PF24169	Straight fiber protein PB4 first Fn3-like domain (Fn3-I_PB4)	Straight fiber protein PB4 first Fn3-like domain	This entry represents the N-terminal Fn3-like domain of the Straight fiber protein PB4 found in T5-like phages. PB4 along with PB3, forms the central straight fiber, bearing the receptor binding protein PB5 at its C terminus [1]. Upon PB5 binding to ...	This entry represents the N-terminal Fn3-like domain of the Straight fiber protein PB4 found in T5-like phages. PB4 along with PB3, forms the central straight fiber, bearing the receptor binding protein PB5 at its C terminus [1]. Upon PB5 binding to the host receptor FhuA, the central fiber reorganises and undergoes structural rearrangements that lead to its bending, bringing PB3 close to the host membrane for anchoring [1]. The PB4-PB3 interactions are ensured by the proximal loops of the first of the three Fn3-like domains of PB4. These interactions are disrupted upon binding to the host receptor and the string of PB4 Fn3-like domains undergoes drastic conformational changes.	Domain
DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], W [auth C]	PF24168	Straight fiber protein PB4 spike domain (PB4_spike)	Straight fiber protein PB4 spike domain	This entry represents the Straight fiber protein PB4 spike found in T5-like bacteriophages. PB4 along with PB3, forms the central straight fiber, bearing the receptor binding protein PB5 at its C terminus [1]. Upon PB5 binding to the host receptor Fh ...	This entry represents the Straight fiber protein PB4 spike found in T5-like bacteriophages. PB4 along with PB3, forms the central straight fiber, bearing the receptor binding protein PB5 at its C terminus [1]. Upon PB5 binding to the host receptor FhuA, the central fiber reorganises and undergoes structural rearrangements that lead to its bending, bringing PB3 close to the host membrane for anchoring [1]. In this process the PB4 spike undergoes structural rearrangement as well. The PB4 spike forms a hetero trimer containing several small distinct subdomains some of which defining a beta-helix, others beta-prism [1].	Domain
DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], W [auth C]	PF02368	Bacterial Ig-like domain (group 2) (Big_2)	Bacterial Ig-like domain (group 2)	This family consists of bacterial domains with an Ig-like fold. Members of this family are found in bacterial and phage surface proteins such as intimins.	Domain
DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], W [auth C]	PF24170	Straight fiber protein PB4 second Fn3-like domain (Fn3-II_PB4)	Straight fiber protein PB4 second Fn3-like domain	This entry represents the second Fn3-like domain of the Straight fiber protein PB4 found in T5-like phages. PB4 along with PB3, forms the central straight fiber, bearing the receptor binding protein PB5 at its C terminus [1]. Upon PB5 binding to the ...	This entry represents the second Fn3-like domain of the Straight fiber protein PB4 found in T5-like phages. PB4 along with PB3, forms the central straight fiber, bearing the receptor binding protein PB5 at its C terminus [1]. Upon PB5 binding to the host receptor FhuA, the central fiber reorganises and undergoes structural rearrangements that lead to its bending, bringing PB3 close to the host membrane for anchoring [1]. The PB4-PB3 interactions are ensured by the distal loops of the second of the three Fn3-like domains of PB4. These interactions are disrupted upon binding to the host receptor and the string of the three PB4 Fn3-like domains undergoes drastic conformational changes.	Domain
DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], W [auth C]	PF21424	Distal tail protein pb9, A domain C-terminal (DTP-pb9_A-dom_C)	Distal tail protein pb9, A domain C-terminal	This entry includes phage distal tail proteins which form a hexameric ring located at the tail tube end, such as pb9 from bacteriophage T5 [1]. pb9 consists of two domains, A and B. Domain A adopts a split barrel fold and includes residues 1 to 82-1 ...	This entry includes phage distal tail proteins which form a hexameric ring located at the tail tube end, such as pb9 from bacteriophage T5 [1]. pb9 consists of two domains, A and B. Domain A adopts a split barrel fold and includes residues 1 to 82-172 to 205. This entry covers the C-terminal region of the A domain [1].	Domain
DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], W [auth C]	PF24171	Straight fiber protein PB4 third Fn3-like domain (Fn3-III_PB4)	Straight fiber protein PB4 third Fn3-like domain	This entry represents the third Fn3-like domain of the Straight fiber protein PB4 found in T5-like phages. PB4 along with PB3, forms the central straight fiber, bearing the receptor binding protein PB5 at its C terminus [1]. Upon PB5 binding to the h ...	This entry represents the third Fn3-like domain of the Straight fiber protein PB4 found in T5-like phages. PB4 along with PB3, forms the central straight fiber, bearing the receptor binding protein PB5 at its C terminus [1]. Upon PB5 binding to the host receptor FhuA, the central fiber reorganises and undergoes structural rearrangements that lead to its bending, bringing PB3 close to the host membrane for anchoring [1]. The PB4-PB3 interactions are ensured by the proximal loops of the first and the distal loops of the second of the three PB4 Fn3-like domains. These interactions are disrupted upon binding to the host receptor and the string of the three PB4 Fn3-like domains undergoes drastic conformational changes.	Domain
DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], W [auth C]	PF21425	Distal tail protein pb9, A domain, N-terminal (DTP-pb9_A-dom_N)	Distal tail protein pb9, A domain, N-terminal	This entry includes phage distal tail proteins which form a hexameric ring located at the tail tube end, such as pb9 from bacteriophage T5 [1]. pb9 consists of two domains, A and B. Domain A adopts a split barrel fold and includes residues 1 to 82-17 ...	This entry includes phage distal tail proteins which form a hexameric ring located at the tail tube end, such as pb9 from bacteriophage T5 [1]. pb9 consists of two domains, A and B. Domain A adopts a split barrel fold and includes residues 1 to 82-172 to 205. This entry covers the N-terminal region of the A domain [1]. The C-terminal segment of the A domain is represented in Pfam:PF21424.	Domain
AA [auth W], IA [auth V], JA [auth Z], L [auth a], R [auth X], AA [auth W], IA [auth V], JA [auth Z], L [auth a], R [auth X], S [auth Y]	PF21430	Distal tail protein pb9, B domain (DTP-pb9_B-dom)	Distal tail protein pb9, B domain	This entry includes phage distal tail proteins which form a hexameric ring located at the tail tube end, such as pb9 from bacteriophage T5 [1]. pb9 consists of two domains, A and B. This entry represents domain B which adopts an OB fold and is insert ...	This entry includes phage distal tail proteins which form a hexameric ring located at the tail tube end, such as pb9 from bacteriophage T5 [1]. pb9 consists of two domains, A and B. This entry represents domain B which adopts an OB fold and is inserted in domain A [1].	Domain
AA [auth W], IA [auth V], JA [auth Z], L [auth a], R [auth X], AA [auth W], IA [auth V], JA [auth Z], L [auth a], R [auth X], S [auth Y]	PF21424	Distal tail protein pb9, A domain C-terminal (DTP-pb9_A-dom_C)	Distal tail protein pb9, A domain C-terminal	This entry includes phage distal tail proteins which form a hexameric ring located at the tail tube end, such as pb9 from bacteriophage T5 [1]. pb9 consists of two domains, A and B. Domain A adopts a split barrel fold and includes residues 1 to 82-1 ...	This entry includes phage distal tail proteins which form a hexameric ring located at the tail tube end, such as pb9 from bacteriophage T5 [1]. pb9 consists of two domains, A and B. Domain A adopts a split barrel fold and includes residues 1 to 82-172 to 205. This entry covers the C-terminal region of the A domain [1].	Domain
AA [auth W], IA [auth V], JA [auth Z], L [auth a], R [auth X], AA [auth W], IA [auth V], JA [auth Z], L [auth a], R [auth X], S [auth Y]	PF21425	Distal tail protein pb9, A domain, N-terminal (DTP-pb9_A-dom_N)	Distal tail protein pb9, A domain, N-terminal	This entry includes phage distal tail proteins which form a hexameric ring located at the tail tube end, such as pb9 from bacteriophage T5 [1]. pb9 consists of two domains, A and B. Domain A adopts a split barrel fold and includes residues 1 to 82-17 ...	This entry includes phage distal tail proteins which form a hexameric ring located at the tail tube end, such as pb9 from bacteriophage T5 [1]. pb9 consists of two domains, A and B. Domain A adopts a split barrel fold and includes residues 1 to 82-172 to 205. This entry covers the N-terminal region of the A domain [1]. The C-terminal segment of the A domain is represented in Pfam:PF21424.	Domain
K [auth I], Q [auth H], Z [auth G]	PF24169	Straight fiber protein PB4 first Fn3-like domain (Fn3-I_PB4)	Straight fiber protein PB4 first Fn3-like domain	This entry represents the N-terminal Fn3-like domain of the Straight fiber protein PB4 found in T5-like phages. PB4 along with PB3, forms the central straight fiber, bearing the receptor binding protein PB5 at its C terminus [1]. Upon PB5 binding to ...	This entry represents the N-terminal Fn3-like domain of the Straight fiber protein PB4 found in T5-like phages. PB4 along with PB3, forms the central straight fiber, bearing the receptor binding protein PB5 at its C terminus [1]. Upon PB5 binding to the host receptor FhuA, the central fiber reorganises and undergoes structural rearrangements that lead to its bending, bringing PB3 close to the host membrane for anchoring [1]. The PB4-PB3 interactions are ensured by the proximal loops of the first of the three Fn3-like domains of PB4. These interactions are disrupted upon binding to the host receptor and the string of PB4 Fn3-like domains undergoes drastic conformational changes.	Domain
K [auth I], Q [auth H], Z [auth G]	PF24170	Straight fiber protein PB4 second Fn3-like domain (Fn3-II_PB4)	Straight fiber protein PB4 second Fn3-like domain	This entry represents the second Fn3-like domain of the Straight fiber protein PB4 found in T5-like phages. PB4 along with PB3, forms the central straight fiber, bearing the receptor binding protein PB5 at its C terminus [1]. Upon PB5 binding to the ...	This entry represents the second Fn3-like domain of the Straight fiber protein PB4 found in T5-like phages. PB4 along with PB3, forms the central straight fiber, bearing the receptor binding protein PB5 at its C terminus [1]. Upon PB5 binding to the host receptor FhuA, the central fiber reorganises and undergoes structural rearrangements that lead to its bending, bringing PB3 close to the host membrane for anchoring [1]. The PB4-PB3 interactions are ensured by the distal loops of the second of the three Fn3-like domains of PB4. These interactions are disrupted upon binding to the host receptor and the string of the three PB4 Fn3-like domains undergoes drastic conformational changes.	Domain
K [auth I], Q [auth H], Z [auth G]	PF23779	Bacteriophage Baseplate Tube Protein Family (Baseplate_Tube_p140)	Bacteriophage Baseplate Tube Protein Family	-	Family
K [auth I], Q [auth H], Z [auth G]	PF24171	Straight fiber protein PB4 third Fn3-like domain (Fn3-III_PB4)	Straight fiber protein PB4 third Fn3-like domain	This entry represents the third Fn3-like domain of the Straight fiber protein PB4 found in T5-like phages. PB4 along with PB3, forms the central straight fiber, bearing the receptor binding protein PB5 at its C terminus [1]. Upon PB5 binding to the h ...	This entry represents the third Fn3-like domain of the Straight fiber protein PB4 found in T5-like phages. PB4 along with PB3, forms the central straight fiber, bearing the receptor binding protein PB5 at its C terminus [1]. Upon PB5 binding to the host receptor FhuA, the central fiber reorganises and undergoes structural rearrangements that lead to its bending, bringing PB3 close to the host membrane for anchoring [1]. The PB4-PB3 interactions are ensured by the proximal loops of the first and the distal loops of the second of the three PB4 Fn3-like domains. These interactions are disrupted upon binding to the host receptor and the string of the three PB4 Fn3-like domains undergoes drastic conformational changes.	Domain
BA [auth U], CA [auth K], GA [auth P], HA [auth T], J [auth R], BA [auth U], CA [auth K], GA [auth P], HA [auth T], J [auth R], M [auth Q], N [auth S], P [auth N], T [auth M], U [auth O], X [auth J], Y [auth L]	PF23926	LtfC-like, beta-sandwich domain (LtfC)	LtfC-like, beta-sandwich domain	This entry, previously known as DUF7264, represents a domain found in the Minor tail protein Gp6, Collar protein p132, Lateral tail fiber protein C (LtfC) and related phage proteins. This domain folds into a beta-sandwich fold with and extended beta- ...	This entry, previously known as DUF7264, represents a domain found in the Minor tail protein Gp6, Collar protein p132, Lateral tail fiber protein C (LtfC) and related phage proteins. This domain folds into a beta-sandwich fold with and extended beta-hairpin that projects away from it. The minor tail proteins Gp6 are likely involved in the assembly or function of the tail structure in bacteriophages. The collar protein p132 forms the T5 phage collar structure, which serves as an anchoring point for the side tail fiber protein pb1, suggesting a role in stabilising the tail fibers and ensuring proper attachment to the host cell [1]. The lateral tail fiber protein C (LtfC) is a component of the DT57C bacteriophage tail tip complex where it forms a dodecameric ring [2]. LtfC adopts a compact, single-domain structure. The LtfC ring is complemented by another lateral tail fiber protein, LtfA. Each of the LtfA monomers is connected to the LtfC assembly in a unique way by augmenting the edges of LtfC beta-sheets with two short beta-strands and thus completing the LtfC beta-sandwich structure.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], W [auth C]	Tail tube protein	-	symbiont genome ejection through host cell envelope biological process involved in interspecies interaction between organisms symbiont genome ejection through host cell envelope, long flexible tail mechanism symbiont entry into host cell viral process symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction symbiont-mediated cytolysis of host cell disruption of cell in another organism cytolysis viral release from host cell by cytolysis exit from host cell symbiont genome ejection through host cell envelope biological process involved in interspecies interaction between organisms symbiont genome ejection through host cell envelope, long flexible tail mechanism symbiont entry into host cell viral process symbiont entry into host viral life cycle biological process involved in interaction with host biological process involved in symbiotic interaction symbiont-mediated cytolysis of host cell disruption of cell in another organism cytolysis viral release from host cell by cytolysis exit from host cell cytolysis in another organism cellular process viral release from host cell disruption of anatomical structure in another organism symbiont-mediated killing of host cell killing of cells of another organism cell killing	virus tail, tube virus tail virion component
AA [auth W], IA [auth V], JA [auth Z], L [auth a], R [auth X], AA [auth W], IA [auth V], JA [auth Z], L [auth a], R [auth X], S [auth Y]	Distal tail protein	-	-	virus tail virion component virus tail, baseplate
K [auth I], Q [auth H], Z [auth G]	Minor tail protein	-	-	virus tail virion component
BA [auth U], CA [auth K], GA [auth P], HA [auth T], J [auth R], BA [auth U], CA [auth K], GA [auth P], HA [auth T], J [auth R], M [auth Q], N [auth S], P [auth N], T [auth M], U [auth O], X [auth J], Y [auth L]	L-shaped tail fiber protein p132	-	-	virus tail, fiber virus tail virion component
F [auth f], G [auth e], H [auth g]	Straight fiber protein pb4	-	-	virus tail virion component
B [auth j], C [auth h], D [auth i]	Pore-forming tail tip protein pb2	lyase activity catalytic activity peptidoglycan muralytic activity	biological process involved in interspecies interaction between organisms symbiont entry into host biological process involved in interaction with host biological process involved in symbiotic interaction symbiont-mediated disruption of host anatomical structure viral life cycle symbiont-mediated disruption of host cell wall symbiont-mediated disruption of host cell envelope symbiont-mediated disruption of host cellular anatomical structure symbiont entry into host cell via disruption of host cell wall peptidoglycan symbiont entry into host cell viral process disruption of anatomical structure in another organism symbiont-mediated perturbation of host membrane biological process involved in interspecies interaction between organisms symbiont entry into host biological process involved in interaction with host biological process involved in symbiotic interaction symbiont-mediated disruption of host anatomical structure viral life cycle symbiont-mediated disruption of host cell wall symbiont-mediated disruption of host cell envelope symbiont-mediated disruption of host cellular anatomical structure symbiont entry into host cell via disruption of host cell wall peptidoglycan symbiont entry into host cell viral process disruption of anatomical structure in another organism symbiont-mediated perturbation of host membrane symbiont genome entry into host cell via pore formation in plasma membrane symbiont entry into host cell via disruption of host cell envelope virion assembly viral tail assembly cellular process disruption of cell in another organism killing of cells of another organism cell killing symbiont genome ejection through host cell envelope symbiont genome ejection through host cell envelope, long flexible tail mechanism defense response to bacterium response to stimulus response to other organism defense response response to bacterium response to stress response to external stimulus response to external biotic stimulus response to biotic stimulus	virus tail virion component
A [auth d], E [auth c], I [auth b]	Probable baseplate hub protein	-	-	virus tail virion component virus tail, baseplate

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], W [auth C]	IPR003343	Bacterial Ig-like domain, group 2	Domain
DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], DA [auth D], EA [auth A], FA [auth B], O [auth F], V [auth E], W [auth C]	IPR008964	Invasin/intimin cell-adhesion fragments	Homologous Superfamily
AA [auth W], IA [auth V], JA [auth Z], L [auth a], R [auth X], AA [auth W], IA [auth V], JA [auth Z], L [auth a], R [auth X], S [auth Y]	IPR048416	Distal tail protein pb9, A domain, C-terminal	Domain
AA [auth W], IA [auth V], JA [auth Z], L [auth a], R [auth X], AA [auth W], IA [auth V], JA [auth Z], L [auth a], R [auth X], S [auth Y]	IPR048415	Distal tail protein pb9, B domain	Domain
AA [auth W], IA [auth V], JA [auth Z], L [auth a], R [auth X], AA [auth W], IA [auth V], JA [auth Z], L [auth a], R [auth X], S [auth Y]	IPR048417	Distal tail protein pb9, A domain, N-terminal	Domain
K [auth I], Q [auth H], Z [auth G]	IPR056389	Baseplate tube protein p140	Family
BA [auth U], CA [auth K], GA [auth P], HA [auth T], J [auth R], BA [auth U], CA [auth K], GA [auth P], HA [auth T], J [auth R], M [auth Q], N [auth S], P [auth N], T [auth M], U [auth O], X [auth J], Y [auth L]	IPR055688	LtfC/p132/Gp6, beta-sandwich domain	Domain
F [auth f], G [auth e], H [auth g]	IPR057549	Straight fiber protein PB4, spike domain	Domain
F [auth f], G [auth e], H [auth g]	IPR057550	Straight fiber protein PB4, first Fn3-like domain	Domain
F [auth f], G [auth e], H [auth g]	IPR057552	Straight fiber protein PB4, third Fn3-like domain	Domain
F [auth f], G [auth e], H [auth g]	IPR057551	Straight fiber protein PB4, second Fn3-like domain	Domain
B [auth j], C [auth h], D [auth i]	IPR056207	Tape measure protein PB2, N-terminal	Domain
B [auth j], C [auth h], D [auth i]	IPR056208	Tape measure protein PB2, C-terminal	Domain
A [auth d], E [auth c], I [auth b]	IPR032876	Tip attachment protein J	Domain

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.