9G0O

Xenopus borealis undecorated microtubule - 14 protofilament, 3-start helix

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D, E... (A, B, C, D, E...)	Tubulin beta chain	polymer	445	49878.8	6	UniProt (Q0IIR4) Pfam (PF00091) Pfam (PF03953) UniProt (by SIFTS) (P30883)	Xenopus borealis (Kenyan clawed frog)
2	G, H, I, J, K... (a, b, c, d, e...)	Tubulin alpha chain	polymer	449	50117.3	6	UniProt (Q5EB23) Pfam (PF00091) Pfam (PF03953)	Xenopus borealis (Kenyan clawed frog)
3	M, N, O, P, Q... (A, B, C, D, E...)	GUANOSINE-5'-DIPHOSPHATE	non-polymer		443.2	6	Chemie (GDP)
4	BA, DA, S, U, X... (e, f, a, b, c...)	GUANOSINE-5'-TRIPHOSPHATE	non-polymer		523.2	6	Chemie (GTP)
5	AA, CA, T, V, W... (e, f, a, b, c...)	MAGNESIUM ION	non-polymer		24.3	6	Chemie (MG)

Sequence modifications

a, b, c, d, e, f: 1 - 449 (UniProt: Q5EB23)

PDB	External Database	Details
Leu 5	Ile 5	conflict
Arg 32	Gln 32	conflict
Val 36	Ile 36	conflict
Ser 37	Pro 37	conflict
Asp 39	Glu 39	conflict
His 40	Lys 40	conflict
Ile 44	Thr 44	conflict
Val 77	Ile 77	conflict
Pro 81	His 81	conflict
Thr 116	Ser 116	conflict
Met 118	Leu 118	conflict
Thr 339	Ser 339	conflict

Contents of the asymmetric unit

Polymers	Number of chains	12
	Total formula weight	599976.1
Non-Polymers*	Number of molecules	18
	Total formula weight	5944.1
All*	Total formula weight	605920.2

*Water molecules are not included.