1bbo

HIGH-RESOLUTION SOLUTION STRUCTURE OF THE DOUBLE CYS2*HIS2 ZINC FINGER FROM THE HUMAN ENHANCER BINDING PROTEIN MBP-1

Method: SOLUTION NMR

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

HUMAN ENHANCER-BINDING PROTEIN MBP-1

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	ZINC ION × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	ZEP1_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–57； UniProt 2086–2142

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	1bbo
Deposition date deposition_date	1992-05-01
Structure title title	HIGH-RESOLUTION SOLUTION STRUCTURE OF THE DOUBLE CYS2*HIS2 ZINC FINGER FROM THE HUMAN ENHANCER BINDING PROTEIN MBP-1
Keywords keywords	DNA-BINDING PROTEIN, DNA BINDING PROTEIN; DNA BINDING PROTEIN
Experimental Method method	SOLUTION NMR

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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.

1bbo__assembly_1__model_17

Assembly 1 · Model 17 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1bbo__assembly_1__model_17 | I(q)

100 plotted points; both axes use logarithmic scales.

1bbo__assembly_1__model_17 | P(r) · Pending

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

Rg（Guinier）	14.38 Å
Rg (electron density)	14.15 Å
Total Rg	15.24 Å
Atom count	963
Residues	56
Excluded volume	8551 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1bbo__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	2	`1bbo__assembly_1__model_2`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	3	`1bbo__assembly_1__model_3`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	4	`1bbo__assembly_1__model_4`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	5	`1bbo__assembly_1__model_5`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	6	`1bbo__assembly_1__model_6`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	7	`1bbo__assembly_1__model_7`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	8	`1bbo__assembly_1__model_8`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	9	`1bbo__assembly_1__model_9`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	10	`1bbo__assembly_1__model_10`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	11	`1bbo__assembly_1__model_11`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	12	`1bbo__assembly_1__model_12`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	13	`1bbo__assembly_1__model_13`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	14	`1bbo__assembly_1__model_14`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	15	`1bbo__assembly_1__model_15`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	16	`1bbo__assembly_1__model_16`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	17	`1bbo__assembly_1__model_17`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	18	`1bbo__assembly_1__model_18`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	19	`1bbo__assembly_1__model_19`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	20	`1bbo__assembly_1__model_20`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	21	`1bbo__assembly_1__model_21`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	22	`1bbo__assembly_1__model_22`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	23	`1bbo__assembly_1__model_23`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	24	`1bbo__assembly_1__model_24`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	25	`1bbo__assembly_1__model_25`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	26	`1bbo__assembly_1__model_26`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	27	`1bbo__assembly_1__model_27`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	28	`1bbo__assembly_1__model_28`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	29	`1bbo__assembly_1__model_29`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	30	`1bbo__assembly_1__model_30`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	31	`1bbo__assembly_1__model_31`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	32	`1bbo__assembly_1__model_32`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	33	`1bbo__assembly_1__model_33`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	34	`1bbo__assembly_1__model_34`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	35	`1bbo__assembly_1__model_35`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	36	`1bbo__assembly_1__model_36`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	37	`1bbo__assembly_1__model_37`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	38	`1bbo__assembly_1__model_38`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	39	`1bbo__assembly_1__model_39`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	40	`1bbo__assembly_1__model_40`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	41	`1bbo__assembly_1__model_41`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	42	`1bbo__assembly_1__model_42`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	43	`1bbo__assembly_1__model_43`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	44	`1bbo__assembly_1__model_44`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	45	`1bbo__assembly_1__model_45`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	46	`1bbo__assembly_1__model_46`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	47	`1bbo__assembly_1__model_47`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	48	`1bbo__assembly_1__model_48`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	49	`1bbo__assembly_1__model_49`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	50	`1bbo__assembly_1__model_50`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	51	`1bbo__assembly_1__model_51`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	52	`1bbo__assembly_1__model_52`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	53	`1bbo__assembly_1__model_53`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	54	`1bbo__assembly_1__model_54`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	55	`1bbo__assembly_1__model_55`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	56	`1bbo__assembly_1__model_56`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	57	`1bbo__assembly_1__model_57`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	58	`1bbo__assembly_1__model_58`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	59	`1bbo__assembly_1__model_59`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
1	60	`1bbo__assembly_1__model_60`	monomeric （1）	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) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1bboa1
Class class	g — Small proteins
Fold Fold fold	g.37 — beta-beta-alpha zinc fingers
Superfamily Superfamily superfamily	g.37.1 — beta-beta-alpha zinc fingers
Family Family family	g.37.1.1 — Classic zinc finger, C2H2

Domain ID domain_id	d1bboa2
Class class	g — Small proteins
Fold Fold fold	g.37 — beta-beta-alpha zinc fingers
Superfamily Superfamily superfamily	g.37.1 — beta-beta-alpha zinc fingers
Family Family family	g.37.1.1 — Classic zinc finger, C2H2

CATH v4.4 (2 domains)

Domain ID domain_id	1bboA01
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	160 — Double Stranded RNA Binding Domain
Homologous superfamily homologous superfamily	60 — Classic Zinc Finger

Domain ID domain_id	1bboA02
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	160 — Double Stranded RNA Binding Domain
Homologous superfamily homologous superfamily	60 — Classic Zinc Finger

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	1

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

Description description	HUMAN ENHANCER-BINDING PROTEIN MBP-1
Molecular weight formula_weight	6774.1 kDa
Source method src_method	man
Copy count entity_count	1

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	57780

Source organism organism	Homo sapiens
Common name common_name	human
NCBI taxonomy ID ncbi_taxonomy_id	9606

HIGH-RESOLUTION SOLUTION STRUCTURE OF THE DOUBLE CYS2*HIS2 ZINC FINGER FROM THE HUMAN ENHANCER BINDING PROTEIN MBP-1

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

HUMAN ENHANCER-BINDING PROTEIN MBP-1

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

1bbo__assembly_1__model_17

1bbo__assembly_1__model_17 | I(q)

1bbo__assembly_1__model_17 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	2

HIGH-RESOLUTION SOLUTION STRUCTURE OF THE DOUBLE CYS2*HIS2 ZINC FINGER FROM THE HUMAN ENHANCER BINDING PROTEIN MBP-1

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

HUMAN ENHANCER-BINDING PROTEIN MBP-1

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

1bbo__assembly_1__model_17

1bbo__assembly_1__model_17 | I(q)

1bbo__assembly_1__model_17 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

5. Entities and Polymers Entities & Polymers (2)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)