0	8	Arrested	arrest	VBN
9	20	development	development	NN
20	21	:	:	:
22	35	understanding	understand	VBG
36	41	v-abl	v-abl	NN
41	42	.	.	.

44	47	The	the	DT
48	55	protein	protein	NN
56	64	tyrosine	tyrosine	NN
65	71	kinase	kinase	NNP
72	80	activity	activity	NN
81	83	of	of	IN
84	87	the	the	DT
88	93	v-abl	v-abl	NN
94	102	oncogene	oncogene	NN
103	106	has	have	VBZ
107	111	been	be	VBN
112	124	demonstrated	demonstrate	VBN
125	127	to	to	TO
128	135	subvert	subvert	VB
136	139	the	the	DT
140	146	normal	normal	JJ
147	153	second	second	JJ
154	163	messenger	messenger	NN
164	171	systems	system	NNS
172	176	used	use	VBN
177	179	by	by	IN
180	188	lymphoid	lymphoid	JJ
189	194	cells	cell	NNS
195	198	for	for	IN
199	205	growth	growth	NN
206	209	and	and	CC
210	225	differentiation	differentiation	NN
225	226	.	.	.

227	241	Transformation	transformation	NN
242	244	of	of	IN
245	249	bone	bone	NN
250	256	marrow	marrow	NN
257	261	with	with	IN
262	265	the	the	DT
266	273	Abelson	Abelson	NNP
274	280	murine	murine	JJ
281	289	leukemia	leukemia	NN
290	295	virus	virus	NN
296	303	results	result	VBZ
304	306	in	in	IN
307	310	the	the	DT
311	321	appearance	appearance	NN
322	324	of	of	IN
325	326	B	B	NNP
327	331	cell	cell	NN
332	339	lineage	lineage	NN
340	345	cells	cell	NNS
346	354	arrested	arrest	VBN
355	357	at	at	IN
358	361	the	the	DT
362	367	pre-B	pre-b	JJ
368	372	cell	cell	NN
373	378	stage	stage	NN
378	379	.	.	.

380	386	Recent	recent	JJ
387	394	reports	report	NNS
395	399	have	have	VBP
400	413	characterized	characterize	VBN
414	419	these	these	DT
420	425	cells	cell	NNS
426	436	expressing	express	VBG
437	441	high	high	JJ
442	447	v-abl	v-abl	NN
448	454	kinase	kinase	NNP
455	463	activity	activity	NN
464	466	as	as	IN
467	476	deficient	deficient	JJ
477	479	in	in	IN
480	490	detectable	detectable	JJ
491	500	NF-kappaB	NF-kappaB	NNP
501	504	DNA	DNA	NNP
505	512	binding	binding	NN
513	521	activity	activity	NN
522	525	and	and	CC
526	529	low	low	JJ
530	535	level	level	NN
536	539	RAG	rag	NN
540	544	gene	gene	NN
545	555	expression	expression	NN
555	556	.	.	.

557	562	These	these	DT
563	575	observations	observation	NNS
576	583	suggest	suggest	VBP
584	588	that	that	IN
589	594	v-abl	v-abl	NN
595	598	may	may	MD
599	601	be	be	VB
602	612	inhibiting	inhibit	VBG
613	616	the	the	DT
617	632	differentiation	differentiation	NN
633	635	of	of	IN
636	637	B	B	NNP
638	643	cells	cell	NNS
644	646	by	by	IN
647	655	blocking	block	VBG
656	661	these	these	DT
662	665	two	two	CD
666	673	crucial	crucial	JJ
674	682	elements	element	NNS
683	685	in	in	IN
686	689	the	the	DT
690	700	maturation	maturation	NN
701	708	pathway	pathway	NN
708	709	.	.	.