4X6C

CD1a ternary complex with lysophosphatidylcholine and BK6 TCR

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C (A, C)	T-cell surface glycoprotein CD1a	polymer	281	32178.2	2	UniProt (P06126) Pfam (PF16497) Pfam (PF07654)	Homo sapiens (Human)	T-cell surface antigen T6/Leu-6,hTa1 thymocyte antigen
2	B, D (B, D)	Beta-2-microglobulin	polymer	105	12358.9	2	UniProt (P61769) Pfam (PF07654)	Homo sapiens (Human)
3	E, G (E, G)	TCR alpha	polymer	207	22998.3	2	Pfam (PF09291) UniProt (by SIFTS) (P01848)	Homo sapiens
4	F, H (F, H)	TCR beta	polymer	245	27598.0	2	Pfam (PF07654) UniProt (by SIFTS) (P01850)	Homo sapiens
5	I, J, L (A, C)	2-acetamido-2-deoxy-beta-D-glucopyranose	non-polymer		221.2	3	Chemie (NAG)
6	K, M (A, C)	(4R,7R,18Z)-4,7-dihydroxy-N,N,N-trimethyl-10-oxo-3,5,9-trioxa-4-phosphaheptacos-18-en-1-aminium 4-oxide	non-polymer		522.7	2	Chemie (42H)
7	N, O, P, Q (E, F, G, H)	water	water		18.0	21	Chemie (HOH)

Sequence modifications

A, C: 4 - 278 (UniProt: P06126)

PDB	External Database	Details
Ile 13	Thr 30	variant
Trp 51	Cys 68	variant
Gly 279	-	expression tag
Ser 280	-	expression tag
Leu 281	-	expression tag
Val 282	-	expression tag
Pro 283	-	expression tag
Arg 284	-	expression tag

B, D: 1 - 99 (UniProt: P61769)

PDB	External Database	Details
Gly 100	-	expression tag
Ser 101	-	expression tag
Leu 102	-	expression tag
Val 103	-	expression tag
Pro 104	-	expression tag
Arg 105	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	190266.7
Non-Polymers*	Number of molecules	5
	Total formula weight	1709.0
All*	Total formula weight	191975.6

*Water molecules are not included.