8VT7

Structure of the gamma tubulin ring complex nucleated microtubule protofilament.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C (F, A)	Tubulin beta-3 chain	polymer	456	51276.4	2	UniProt (Q13509) Pfam (PF00091) Pfam (PF03953)	Homo sapiens (human)	Tubulin beta-4 chain,Tubulin beta-III
2	B, D (J, B)	Tubulin alpha-1B chain	polymer	457	51019.3	2	UniProt (P68363) Pfam (PF00091) Pfam (PF03953)	Homo sapiens (human)	Alpha-tubulin ubiquitous,Tubulin K-alpha-1,Tubulin alpha-ubiquitous chain
3	E, H (F, A)	GUANOSINE-5'-DIPHOSPHATE	non-polymer		443.2	2	Chemie (GDP)
4	F, I (J, B)	GUANOSINE-5'-TRIPHOSPHATE	non-polymer		523.2	2	Chemie (GTP)
5	G, J (J, B)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)

Sequence modifications

F, A: 1 - 450 (UniProt: Q13509)

PDB	External Database	Details
Glu 451	-	expression tag
Asn 452	-	expression tag
Leu 453	-	expression tag
Tyr 454	-	expression tag
Phe 455	-	expression tag
Gln 456	-	expression tag

J, B: 1 - 451 (UniProt: P68363)

PDB	External Database	Details
His 37	-	insertion
His 37	-	insertion
His 37	-	insertion
His 37	-	insertion
His 37	-	insertion
His 37	-	insertion
Asp 254	Glu 254	conflict

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	204591.3
Non-Polymers*	Number of molecules	6
	Total formula weight	1981.4
All*	Total formula weight	206572.7

*Water molecules are not included.