##gff-version 3
P40293	UniProtKB	Signal peptide	1	31	.	.	.	Ontology_term=ECO:0000255;evidence=ECO:0000255	
P40293	UniProtKB	Chain	32	223	.	.	.	ID=PRO_0000014557;Note=B-cell antigen receptor complex-associated protein alpha chain	
P40293	UniProtKB	Topological domain	32	140	.	.	.	Note=Extracellular;Ontology_term=ECO:0000255;evidence=ECO:0000255	
P40293	UniProtKB	Transmembrane	141	161	.	.	.	Note=Helical;Ontology_term=ECO:0000255;evidence=ECO:0000255	
P40293	UniProtKB	Topological domain	162	223	.	.	.	Note=Cytoplasmic;Ontology_term=ECO:0000255;evidence=ECO:0000255	
P40293	UniProtKB	Domain	32	120	.	.	.	Note=Ig-like C2-type	
P40293	UniProtKB	Domain	174	202	.	.	.	Note=ITAM;Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00379	
P40293	UniProtKB	Site	207	207	.	.	.	Note=Required for binding to BLNK;Ontology_term=ECO:0000250;evidence=ECO:0000250	
P40293	UniProtKB	Modified residue	185	185	.	.	.	Note=Phosphotyrosine%3B by SRC-type Tyr-kinases;Ontology_term=ECO:0000250,ECO:0000255;evidence=ECO:0000250|UniProtKB:P11911,ECO:0000255|PROSITE-ProRule:PRU00379	
P40293	UniProtKB	Modified residue	196	196	.	.	.	Note=Phosphotyrosine;Ontology_term=ECO:0000250,ECO:0000255;evidence=ECO:0000250|UniProtKB:P11911,ECO:0000255|PROSITE-ProRule:PRU00379	
P40293	UniProtKB	Modified residue	201	201	.	.	.	Note=Asymmetric dimethylarginine%3B by PRMT1;Ontology_term=ECO:0000250;evidence=ECO:0000250|UniProtKB:P11911	
P40293	UniProtKB	Modified residue	207	207	.	.	.	Note=Phosphotyrosine%3B by Tyr-kinases;Ontology_term=ECO:0000250,ECO:0000255;evidence=ECO:0000250|UniProtKB:P11911,ECO:0000255|PROSITE-ProRule:PRU00379	
P40293	UniProtKB	Glycosylation	56	56	.	.	.	Note=N-linked (GlcNAc...) asparagine;Ontology_term=ECO:0000255;evidence=ECO:0000255	
P40293	UniProtKB	Glycosylation	61	61	.	.	.	Note=N-linked (GlcNAc...) asparagine;Ontology_term=ECO:0000255;evidence=ECO:0000255	
P40293	UniProtKB	Glycosylation	71	71	.	.	.	Note=N-linked (GlcNAc...) asparagine;Ontology_term=ECO:0000255;evidence=ECO:0000255	
P40293	UniProtKB	Glycosylation	95	95	.	.	.	Note=N-linked (GlcNAc...) asparagine;Ontology_term=ECO:0000255;evidence=ECO:0000255	
P40293	UniProtKB	Disulfide bond	53	104	.	.	.	Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00114	
P40293	UniProtKB	Disulfide bond	116	116	.	.	.	Note=Interchain (with beta chain);Ontology_term=ECO:0000255;evidence=ECO:0000255|PROSITE-ProRule:PRU00114	
P40293	UniProtKB	Alternative sequence	124	133	.	.	.	ID=VSP_027221;Note=In isoform 2. DPLPRPFLDM->ETMAEHEIRG;Ontology_term=ECO:0000303;evidence=ECO:0000303|PubMed:7963570;Dbxref=PMID:7963570	
P40293	UniProtKB	Alternative sequence	134	223	.	.	.	ID=VSP_027222;Note=In isoform 2. Missing;Ontology_term=ECO:0000303;evidence=ECO:0000303|PubMed:7963570;Dbxref=PMID:7963570