7mx4

CD1c with antigen analogue 1

Method: X-RAY DIFFRACTION

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

T-cell surface glycoprotein CD1c/T-cell surface glycoprotein CD1b chimeric protein

Homo sapiens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Heteromer	Protein 2	Beta-2-microglobulin × 1 （P61769） 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ;(4S,8R,12S,16S,20S)-4,8,12,16,20-pentamethylheptacosyl (1R,2S,3S,4R,5R)-2,3,4-trihydroxy-5-(hydroxymethyl)cyclohexyl hydrogen (R)-phosphate ; × 1 DODECANE × 1 (2S)-2,3-dihydroxypropyl hexadecanoate × 1 2-[N-CYCLOHEXYLAMINO]ETHANE SULFONIC ACID × 1 MALONIC ACID × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CD1B_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 195–279； UniProt 212–296

T-cell surface glycoprotein CD1c/T-cell surface glycoprotein CD1b chimeric protein

Homo sapiens

UniProt P29017

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Heteromer	Protein 2	Beta-2-microglobulin × 1 （P61769） 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ;(4S,8R,12S,16S,20S)-4,8,12,16,20-pentamethylheptacosyl (1R,2S,3S,4R,5R)-2,3,4-trihydroxy-5-(hydroxymethyl)cyclohexyl hydrogen (R)-phosphate ; × 1 DODECANE × 1 (2S)-2,3-dihydroxypropyl hexadecanoate × 1 2-[N-CYCLOHEXYLAMINO]ETHANE SULFONIC ACID × 1 MALONIC ACID × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CD1C_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–194； UniProt 19–212

Beta-2-microglobulin

Homo sapiens

UniProt P61769

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Heteromer	Protein 2	T-cell surface glycoprotein CD1c/T-cell surface glycoprotein CD1b chimeric protein × 1 （P29016,P29017） 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 ;(4S,8R,12S,16S,20S)-4,8,12,16,20-pentamethylheptacosyl (1R,2S,3S,4R,5R)-2,3,4-trihydroxy-5-(hydroxymethyl)cyclohexyl hydrogen (R)-phosphate ; × 1 DODECANE × 1 (2S)-2,3-dihydroxypropyl hexadecanoate × 1 2-[N-CYCLOHEXYLAMINO]ETHANE SULFONIC ACID × 1 MALONIC ACID × 2 water × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	B2MG_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain B； PDBConstruct 3–102； UniProt 20–119

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	7mx4
Deposition date deposition_date	2021-05-18
Structure title title	CD1c with antigen analogue 1
Keywords keywords	lipid, CD1c, antigen-presenting, tuberculosis, LIPID BINDING PROTEIN, IMMUNE SYSTEM; LIPID BINDING PROTEIN, IMMUNE SYSTEM
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.

7mx4__assembly_1__model_1

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

Download this curve (.dat)

7mx4__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

7mx4__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	24.90 Å
Rg (electron density)	23.76 Å
Total Rg	24.67 Å
Atom count	3191
Residues	382
Excluded volume	56808 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`7mx4__assembly_1__model_1`	dimeric （2）	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 (9)

Entity 1 Entity 1 polymer

Description description	T-cell surface glycoprotein CD1c/T-cell surface glycoprotein CD1b chimeric protein
Molecular weight formula_weight	31645.4 kDa
Mutation mutation	N52Q, N57Q, K108G, N128Q, W241G
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	3413

ADASQEHVSFHVIQIFSFVNQSWARGQGSGWLDELQTHGWDSESGTIIFLHQWSKGQFSNEELSDLELLFRFYLFGLTREIQDHASQDYSKYPFEVQVKAGCELHSGGSPEGFFQVAFNGLDLLSFQQTTWVPSPGCGSLAQSVCHLLNHQYEGVTETVYNLIRSTCPRFLLGLLDAGKMYVHRQVRPEAWLSSGPSPGPGRLQLVCHVSGFYPKPVWVMWMRGEQEQQGTQLGDILPNANGTWYLRATLDVADGEAAGLSCRVKHSSLEGQDIILYWRGSL

Source Source

Source organism organism	Homo sapiens
Common name common_name	Human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Homo sapiens

Entity 2 Entity 2 polymer

Description description	Beta-2-microglobulin
Molecular weight formula_weight	12616.1 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	B

DAAIQRTPKIQVYSRHPAENGKSNFLNCYVSGFHPSDIEVDLLKNGERIEKVEHSDLSFSKDWSFYLLYYTEFTPTEKDEYACRVNHVTLSQPKIVKWDRDMGSLVPR

Source Source

Source organism organism	Homo sapiens
Common name common_name	Human
NCBI taxonomy ID ncbi_taxonomy_id	9606
Host organism host_organism	Homo sapiens

Entity 3 Entity 3 non-polymer

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	221.2 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 4 Entity 4 non-polymer

Description description	;(4S,8R,12S,16S,20S)-4,8,12,16,20-pentamethylheptacosyl (1R,2S,3S,4R,5R)-2,3,4-trihydroxy-5-(hydroxymethyl)cyclohexyl hydrogen (R)-phosphate ;
Molecular weight formula_weight	707.0 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 non-polymer

Description description	DODECANE
Molecular weight formula_weight	170.3 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 6 Entity 6 non-polymer

Description description	(2S)-2,3-dihydroxypropyl hexadecanoate
Molecular weight formula_weight	330.5 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 7 Entity 7 non-polymer

Description description	2-[N-CYCLOHEXYLAMINO]ETHANE SULFONIC ACID
Molecular weight formula_weight	207.3 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 8 Entity 8 non-polymer

Description description	MALONIC ACID
Molecular weight formula_weight	104.1 kDa
Source method src_method	man
Copy count entity_count	2

Entity 9 Entity 9 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	222

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Unit-cell length a length_a	55.419 Å
Unit-cell length b length_b	71.737 Å
Unit-cell length c length_c	100.761 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	4

Space group space_group	P 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	1.730 Å
Low-resolution limit resolution_low	48.560 Å
R factor r_factor	0.2084
R_work r_work	0.2068
R_free r_free	0.2388

CD1c with antigen analogue 1

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

T-cell surface glycoprotein CD1c/T-cell surface glycoprotein CD1b chimeric protein

State in the Current Structure

Other States of the Same Protein in the Database

T-cell surface glycoprotein CD1c/T-cell surface glycoprotein CD1b chimeric protein

State in the Current Structure

Other States of the Same Protein in the Database

Beta-2-microglobulin

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

7mx4__assembly_1__model_1

7mx4__assembly_1__model_1 | I(q)

7mx4__assembly_1__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 (9)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 non-polymer

Entity 8 Entity 8 non-polymer

Entity 9 Entity 9 water

7. Citations (1)

CD1c with antigen analogue 1

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

T-cell surface glycoprotein CD1c/T-cell surface glycoprotein CD1b chimeric protein

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

T-cell surface glycoprotein CD1c/T-cell surface glycoprotein CD1b chimeric protein

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Beta-2-microglobulin

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

7mx4__assembly_1__model_1

7mx4__assembly_1__model_1 | I(q)

7mx4__assembly_1__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 (9)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 non-polymer

Entity 8 Entity 8 non-polymer

Entity 9 Entity 9 water

7. Citations (1)