2V9Q

First and second Ig domains from human Robo1

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	ROUNDABOUT HOMOLOG 1	polymer	212	23587.7	1	UniProt (Q9Y6N7) Pfam (PF13927) Pfam (PF07679)	HOMO SAPIENS (HUMAN)	H-ROBO-1, DELETED IN U TWENTY TWENTY, ROBO1
2	B, C (A)	MERCURY (II) ION	non-polymer		200.6	2	Chemie (HG)
3	D (A)	water	water		18.0	64	Chemie (HOH)

Sequence modifications

A: 59 - 60 (PDB: 2V9Q)
A: 267 - 270 (PDB: 2V9Q)
A: 61 - 266 (UniProt: Q9Y6N7)

PDB	External Database	Details
Asp 160	Asn 160	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	23587.7
Non-Polymers*	Number of molecules	2
	Total formula weight	401.2
All*	Total formula weight	23988.9

*Water molecules are not included.