1w4c

P4 protein from Bacteriophage PHI12 apo state

Method: X-RAY DIFFRACTION

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1. Protein Identity and Related Structures Protein Identity & Related Structures

NTPASE P4

BACTERIOPHAGE PHI-12

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 6	water × 6	Consistent with protein count
2	Protein homooligomer	Homooligomer	Protein 6	water × 6	Consistent with protein count
3	Protein homooligomer	Homooligomer	Protein 6	water × 6	Consistent with protein count
4	Protein homooligomer	Homooligomer	Protein 6	water × 6	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q94M05
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–331； UniProt 1–331 Author chain B； PDBConstruct 1–331； UniProt 1–331 Author chain C； PDBConstruct 1–331； UniProt 1–331 Author chain D； PDBConstruct 1–331； UniProt 1–331 Author chain E； PDBConstruct 1–331； UniProt 1–331 Author chain F； PDBConstruct 1–331； UniProt 1–331 Author chain G； PDBConstruct 1–331； UniProt 1–331 Author chain H； PDBConstruct 1–331； UniProt 1–331 Author chain I； PDBConstruct 1–331； UniProt 1–331 Author chain J； PDBConstruct 1–331； UniProt 1–331 Author chain K； PDBConstruct 1–331； UniProt 1–331 Author chain L； PDBConstruct 1–331； UniProt 1–331 Author chain M； PDBConstruct 1–331； UniProt 1–331 Author chain N； PDBConstruct 1–331； UniProt 1–331 Author chain O； PDBConstruct 1–331； UniProt 1–331 Author chain P； PDBConstruct 1–331； UniProt 1–331 Author chain Q； PDBConstruct 1–331； UniProt 1–331 Author chain R； PDBConstruct 1–331； UniProt 1–331 Author chain S； PDBConstruct 1–331； UniProt 1–331 Author chain T； PDBConstruct 1–331； UniProt 1–331 Author chain U； PDBConstruct 1–331； UniProt 1–331 Author chain V； PDBConstruct 1–331； UniProt 1–331 Author chain W； PDBConstruct 1–331； UniProt 1–331 Author chain X； PDBConstruct 1–331； UniProt 1–331

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	1w4c
Deposition date deposition_date	2004-07-22
Structure title title	P4 protein from Bacteriophage PHI12 apo state
Keywords keywords	HYDROLASE, DSRNA VIRUS, PACKAGING ATPASE, HEXAMERIC HELICASE, MOLECULAR MOTOR, NON-HYDROLYSABLE ATP ANALOGUE HYDROLASE; HYDROLASE
Experimental Method method	X-RAY DIFFRACTION

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

1w4c__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1w4c__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1w4c__assembly_2__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	38.28 Å
Rg (electron density)	37.24 Å
Total Rg	37.70 Å
Atom count	13380
Residues	1779
Excluded volume	236940 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1w4c__assembly_1__model_1`	hexameric （6）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1w4c__assembly_2__model_1`	hexameric （6）	Success	4.1.3-1-20251215 (887e7ef)	View Download
3	1	`1w4c__assembly_3__model_1`	hexameric （6）	Success	4.1.3-1-20251215 (887e7ef)	View Download
4	1	`1w4c__assembly_4__model_1`	hexameric （6）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (2)

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6. Fold Classification (SCOP + CATH) 72 domains

SCOP 2.08 (24 domains)

Domain ID domain_id	d1w4ca_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4cb_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4cc_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4cd_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4ce_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4cf_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4cg_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4ch_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4ci_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4cj_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4ck_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4cl_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4cm_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4cn_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4co_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4cp_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4cq_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4cr_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4cs_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4ct_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4cu_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4cv_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4cw_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

Domain ID domain_id	d1w4cx_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.37 — P-loop containing nucleoside triphosphate hydrolases
Superfamily Superfamily superfamily	c.37.1 — P-loop containing nucleoside triphosphate hydrolases
Family Family family	c.37.1.11 — RecA protein-like (ATPase-domain)

CATH v4.4 (48 domains)

Domain ID domain_id	1w4cA01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cA02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cB01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cB02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cC01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cC02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cD01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cD02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cE01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cE02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cF01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cF02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cG01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cG02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cH01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cH02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cI01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cI02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cJ01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cJ02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cK01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cK02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cL01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cL02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cM01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cM02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cN01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cN02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cO01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cO02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cP01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cP02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cQ01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cQ02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cR01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cR02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cS01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cS02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cT01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cT02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cU01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cU02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cV01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cV02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cW01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cW02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

Domain ID domain_id	1w4cX01
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	50 — Rossmann fold
Homologous superfamily homologous superfamily	300 — P-loop containing nucleotide triphosphate hydrolases

Domain ID domain_id	1w4cX02
Class class	2 — Mainly Beta
Architecture architecture	30 — Roll
Topology topology	270 — duf1285 protein fold
Homologous superfamily homologous superfamily	20 —

▶

Unit-cell length a length_a	115.400 Å
Unit-cell length b length_b	126.300 Å
Unit-cell length c length_c	155.600 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	91.60 °
Unit-cell angle γ angle_gamma	90.50 °
Molecules per unit cell Z z_pdb	24

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

Resolution resolution	2.500 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	0.2514
R_work r_work	0.2514
R_free r_free	0.2236

Description description	NTPASE P4
Molecular weight formula_weight	35150.4 kDa
Source method src_method	man
Copy count entity_count	24

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X
Atom count atom_count	57270

P4 protein from Bacteriophage PHI12 apo state

1. Protein Identity and Related Structures Protein Identity & Related Structures

NTPASE P4

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

1w4c__assembly_2__model_1

1w4c__assembly_2__model_1 | I(q)

1w4c__assembly_2__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 72 domains

SCOP 2.08 (24 domains)

CATH v4.4 (48 domains)

7. Citations (1)

Source organism organism	BACTERIOPHAGE PHI-12
Common name common_name	BACTERIOPHAGE PHI12
NCBI taxonomy ID ncbi_taxonomy_id	161736
Host organism host_organism	ESCHERICHIA COLI

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	3162

P4 protein from Bacteriophage PHI12 apo state

1. Protein Identity and Related Structures Protein Identity & Related Structures

NTPASE P4

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

1w4c__assembly_2__model_1

1w4c__assembly_2__model_1 | I(q)

1w4c__assembly_2__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 water

6. Fold Classification (SCOP + CATH) 72 domains

SCOP 2.08 (24 domains)

CATH v4.4 (48 domains)

7. Citations (1)