6OJQ

Monomeric kinesin-1 motor domain in no-nucleotide state bound to GMPCPP-stabilized microtubule

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	B	Tubulin beta-2B chain	polymer	426	47825.9	1	UniProt (Q6B856) Pfam (PF00091) Pfam (PF03953) In PDB	Bos taurus (Bovine)
2	A	Tubulin alpha-1B chain	polymer	437	48665.0	1	UniProt (P81947) Pfam (PF00091) Pfam (PF03953) In PDB	Bos taurus (Bovine)	Alpha-tubulin ubiquitous,Tubulin K-alpha-1,Tubulin alpha-ubiquitous chain
3	K	Kinesin-1 heavy chain	polymer	317	35445.8	1	UniProt (P33176) Pfam (PF00225) In PDB	Homo sapiens (Human)	Conventional kinesin heavy chain,Ubiquitous kinesin heavy chain,UKHC
4	B	PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER	non-polymer		521.2	1	Chemie (G2P)
5	B, A	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
6	A	GUANOSINE-5'-TRIPHOSPHATE	non-polymer		523.2	1	Chemie (GTP)

Sequence modifications

B: 1 - 436 (UniProt: Q6B856)

PDB	External Database	Details
Ala 57	Thr 55	conflict
Val 172	Met 170	conflict
Ala 298	Ser 296	conflict
Val 318	Ile 316	conflict

K: 8 - 324 (UniProt: P33176)

PDB	External Database	Details
Ala 65	Cys 65	conflict
Ala 168	Cys 168	conflict
Ser 174	Cys 174	conflict
Ala 294	Cys 294	conflict

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	131936.7
Non-Polymers*	Number of molecules	4
	Total formula weight	1093.0
All*	Total formula weight	133029.7

*Water molecules are not included.