Homeobox B1 Antibodies

Supplier	Product		Quantity	Reactivity	Applications	Datasheet
FineTest	FNab03977	More Data FNab03977 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ug Hu, Mo ELISA, WB WB	100 ug	Hu, Mo	ELISA, WB	More Data
Enzo Life Sciences	ENZ-ABS190-0100	More Data ENZ-ABS190-0100 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Mo, Pr IHC-F, IHC-P, WB	100 ul	Mo, Pr	IHC-F, IHC-P, WB	More Data
Atlas Antibodies	HPA044576	More Data HPA044576 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Hu IHC-F, IHC-P IHC-F IHC-P	100 ul	Hu	IHC-F, IHC-P	More Data

View 5 Matching ELISA Kits from 2 suppliers

164 Homeobox B1 antibodies from 18 antibody suppliers Click each Homeobox B1 antibody that interests you to view the full Homeobox B1 antibody datasheet.
View only Homeobox B1 Monoclonal Antibodies or Homeobox B1 Polyclonal Antibodies

Product		Quantity	Reactivity Filter	Applications Filter	Datasheet
FineTest
FNab03977	More Data FNab03977 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ug Hu, Mo ELISA, WB WB	100 ug	Hu, Mo	ELISA, WB	More Data
FNab03976	More Data FNab03976 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ug Hu, Mo ELISA, WB WB	100 ug	Hu, Mo	ELISA, WB	More Data
Enzo Life Sciences
ENZ-ABS190-0100	More Data ENZ-ABS190-0100 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Mo, Pr IHC-F, IHC-P, WB	100 ul	Mo, Pr	IHC-F, IHC-P, WB	More Data
Atlas Antibodies
HPA044576	More Data HPA044576 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Hu IHC-F, IHC-P IHC-F IHC-P	100 ul	Hu	IHC-F, IHC-P	More Data
Lifespan Biosciences
LS-C334836	More Data LS-C334836 Rabbit Anti-Homeobox B1 antibody, Polyclonal 1 Vial Hu, Mo IHC-F, IHC-P, WB IHC-F IHC-P WB	1 Vial	Hu, Mo	IHC-F, IHC-P, WB	More Data
LS-C139493	More Data LS-C139493 Mouse Anti-Homeobox B1 antibody, Monoclonal[2.00E+05] 1 Vial Hu ELISA, IP, WB IP WB	1 Vial	Hu	ELISA, IP, WB	More Data
LS-C158207	More Data LS-C158207 Rabbit Anti-Homeobox B1 antibody, Polyclonal 1 Vial Mo WB WB	1 Vial	Mo	WB	More Data
LS-C375906	More Data LS-C375906 Rabbit Anti-Homeobox B1 antibody, Polyclonal 1 Vial Hu, Mo ELISA, WB WB	1 Vial	Hu, Mo	ELISA, WB	More Data
Show more from Lifespan Biosciences
LS-C117010	More Data LS-C117010 Rabbit Anti-Homeobox B1 antibody, Polyclonal 1 Vial Bv, GP, Ha, Hu, Mo, Rb WB	1 Vial	Bv, GP, Ha, Hu, Mo, Rb	WB	More Data
LS-C134932	More Data LS-C134932 Rabbit Anti-Homeobox B1 antibody, Polyclonal 1 Vial Bt, Bv, Ch, Cn, Eq, GP, Ha, Hu, Mo, Pr, Rb, Rt, Xe WB	1 Vial	Bt, Bv, Ch, Cn, Eq, GP, Ha, Hu, Mo, Pr, Rb, Rt, Xe	WB	More Data
LS-C201335	More Data LS-C201335 Rabbit Anti-Homeobox B1 antibody, Polyclonal 1 Vial Hu, Rt WB	1 Vial	Hu, Rt	WB	More Data
LS-C259830	More Data LS-C259830 Rabbit Anti-Homeobox B1 antibody, Polyclonal, FITC 1 Vial Mo ELISA, WB	1 Vial	Mo	ELISA, WB	More Data
LS-C259828	More Data LS-C259828 Rabbit Anti-Homeobox B1 antibody, Polyclonal, Far-Red 1 Vial Mo ELISA, WB	1 Vial	Mo	ELISA, WB	More Data
LS-C259829	More Data LS-C259829 Rabbit Anti-Homeobox B1 antibody, Polyclonal, Biotin 1 Vial Mo ELISA, WB	1 Vial	Mo	ELISA, WB	More Data
LS-C259827	More Data LS-C259827 Rabbit Anti-Homeobox B1 antibody, Polyclonal, Alkaline Phosphatase 1 Vial Mo ELISA, WB	1 Vial	Mo	ELISA, WB	More Data
LS-C259832	More Data LS-C259832 Rabbit Anti-Homeobox B1 antibody, Polyclonal, Far-Red 1 Vial Mo ELISA, WB	1 Vial	Mo	ELISA, WB	More Data
LS-C259831	More Data LS-C259831 Rabbit Anti-Homeobox B1 antibody, Polyclonal, HRP 1 Vial Mo ELISA, WB	1 Vial	Mo	ELISA, WB	More Data
LS-C30719	More Data LS-C30719 Rabbit Anti-Homeobox B1 antibody, Polyclonal 1 Vial Bv, Hu, Mo, Rb, Rt WB	1 Vial	Bv, Hu, Mo, Rb, Rt	WB	More Data
LS-C308288	More Data LS-C308288 Mouse Anti-Homeobox B1 antibody, Monoclonal[LS-C308288] 1 Vial Hu ELISA, WB	1 Vial	Hu	ELISA, WB	More Data
LS-C310649	More Data LS-C310649 Rabbit Anti-Homeobox B1 antibody, Polyclonal 1 Vial Hu WB	1 Vial	Hu	WB	More Data
LS-C310648	More Data LS-C310648 Rabbit Anti-Homeobox B1 antibody, Polyclonal 1 Vial Hu IP, WB	1 Vial	Hu	IP, WB	More Data
LS-C31879	More Data LS-C31879 Rabbit Anti-Homeobox B1 antibody, Polyclonal 1 Vial Cn, Hu, Mo WB	1 Vial	Cn, Hu, Mo	WB	More Data
LS-C322052	More Data LS-C322052 Rabbit Anti-Homeobox B1 antibody, Polyclonal 1 Vial Mo ELISA, WB	1 Vial	Mo	ELISA, WB	More Data
LS-C666197	More Data LS-C666197 Rabbit Anti-Homeobox B1 antibody, Polyclonal 1 Vial Hu ELISA, WB	1 Vial	Hu	ELISA, WB	More Data
LS-C666198	More Data LS-C666198 Rabbit Anti-Homeobox B1 antibody, Polyclonal 1 Vial Hu ELISA, WB	1 Vial	Hu	ELISA, WB	More Data
LS-C767284	More Data LS-C767284 Rabbit Anti-Homeobox B1 antibody, Polyclonal 1 Vial Hu, Mo WB	1 Vial	Hu, Mo	WB	More Data
LS-C779368	More Data LS-C779368 Rabbit Anti-Homeobox B1 antibody, Polyclonal 1 Vial Hu ELISA, WB	1 Vial	Hu	ELISA, WB	More Data
LS-C808010	More Data LS-C808010 Rabbit Anti-Homeobox B1 antibody, Polyclonal 1 Vial Hu, Mo ELISA, IHC-F, IHC-P	1 Vial	Hu, Mo	ELISA, IHC-F, IHC-P	More Data
LS-C345251	More Data LS-C345251 Rabbit Anti-Homeobox B1 antibody, Polyclonal 1 Vial Hu WB	1 Vial	Hu	WB	More Data
LS-C356470	More Data LS-C356470 Rabbit Anti-Homeobox B1 antibody, Polyclonal 1 Vial Hu, Mo ELISA, WB	1 Vial	Hu, Mo	ELISA, WB	More Data
R&D Systems
AF6318	More Data AF6318 Sheep Anti-Homeobox B1 antibody, Polyclonal 100 ug Hu ICC, IF ICC IF	100 ug	Hu	ICC, IF	More Data
Proteintech Group
18732-1-AP	More Data 18732-1-AP Rabbit Anti-Homeobox B1 antibody, Polyclonal 150 ul Hu, Mo ELISA, WB WB	150 ul	Hu, Mo	ELISA, WB	More Data
21653-1-AP	More Data 21653-1-AP Rabbit Anti-Homeobox B1 antibody, Polyclonal 150 ul Hu, Mo ELISA, WB WB	150 ul	Hu, Mo	ELISA, WB	More Data
Origene
TA314028	More Data TA314028 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Hu, Mo IHC-F, IHC-P IHC-F IHC-P	100 ul	Hu, Mo	IHC-F, IHC-P	More Data
TA349344	More Data TA349344 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Ch IHC-F, IHC-P IHC-F IHC-P	100 ul	Ch	IHC-F, IHC-P	More Data
TA335851	More Data TA335851 Rabbit Anti-Homeobox B1 antibody, Polyclonal 50 ug Hu WB WB	50 ug	Hu	WB	More Data
TA329256	More Data TA329256 Rabbit Anti-Homeobox B1 antibody, Polyclonal 50 ug Mo WB WB	50 ug	Mo	WB	More Data
Show more from Origene
TA341778	More Data TA341778 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ug Mo WB WB	100 ug	Mo	WB	More Data
TA341777	More Data TA341777 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ug Mo WB WB	100 ug	Mo	WB	More Data
TA359202	More Data TA359202 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Hu WB	100 ul	Hu	WB	More Data
TA355965	More Data TA355965 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Rt WB	100 ul	Rt	WB	More Data
United States Biological
036696-PE	More Data 036696-PE Rabbit Anti-Homeobox B1 antibody, Monoclonal[036696-PE] 200 ul Mo ELISA, WB	200 ul	Mo	ELISA, WB	More Data
036696-APC	More Data 036696-APC Rabbit Anti-Homeobox B1 antibody, Monoclonal[036696-APC] 200 ul Mo ELISA, WB	200 ul	Mo	ELISA, WB	More Data
36696	More Data 36696 Rabbit Anti-Homeobox B1 antibody, Monoclonal[36696] 200 ul Mo ELISA, WB	200 ul	Mo	ELISA, WB	More Data
128020	More Data 128020 Mouse Anti-Homeobox B1 antibody, Monoclonal[3D1] 100 ug Hu ELISA, WB	100 ug	Hu	ELISA, WB	More Data
Show more from United States Biological
036696-Biotin	More Data 036696-Biotin Rabbit Anti-Homeobox B1 antibody, Monoclonal[036696-Biotin] 200 ul Mo ELISA, WB	200 ul	Mo	ELISA, WB	More Data
036696-HRP	More Data 036696-HRP Rabbit Anti-Homeobox B1 antibody, Monoclonal[036696-HRP] 200 ul Mo ELISA, WB	200 ul	Mo	ELISA, WB	More Data
128018	More Data 128018 Rabbit Anti-Homeobox B1 antibody, Monoclonal[128018] 100 ul Hu, Mo IP, WB	100 ul	Hu, Mo	IP, WB	More Data
036696-FITC	More Data 036696-FITC Rabbit Anti-Homeobox B1 antibody, Monoclonal[036696-FITC] 200 ul Mo ELISA, WB	200 ul	Mo	ELISA, WB	More Data
128019	More Data 128019 Rabbit Anti-Homeobox B1 antibody, Monoclonal[128019] 100 ug Hu WB	100 ug	Hu	WB	More Data
036696-AP	More Data 036696-AP Rabbit Anti-Homeobox B1 antibody, Monoclonal[036696-AP] 200 ul Mo ELISA, WB	200 ul	Mo	ELISA, WB	More Data
128019-PE	More Data 128019-PE Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Hu AP, WB	100 ul	Hu	AP, WB	More Data
247212-FITC	More Data 247212-FITC Mouse Anti-Homeobox B1 antibody, Monoclonal[1B5], FITC 100 ul AP, ELISA, WB	100 ul		AP, ELISA, WB	More Data
247213-FITC	More Data 247213-FITC Mouse Anti-Homeobox B1 antibody, Monoclonal[200000], FITC 100 ul AP, ELISA, IP, WB	100 ul		AP, ELISA, IP, WB	More Data
247215-Biotin	More Data 247215-Biotin Mouse Anti-Homeobox B1 antibody, Monoclonal[3A11], Biotin 100 ul AP, ELISA, WB	100 ul		AP, ELISA, WB	More Data
219006-Biotin	More Data 219006-Biotin Rabbit Anti-Homeobox B1 antibody, Polyclonal, Biotin 100 ul Hu AP, IHC-F, IHC-P, WB	100 ul	Hu	AP, IHC-F, IHC-P, WB	More Data
247211-HRP	More Data 247211-HRP Mouse Anti-Homeobox B1 antibody, Monoclonal[100], HRP 100 ul AP, ELISA, WB	100 ul		AP, ELISA, WB	More Data
128019-AP	More Data 128019-AP Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Hu AP, WB	100 ul	Hu	AP, WB	More Data
247211-Biotin	More Data 247211-Biotin Mouse Anti-Homeobox B1 antibody, Monoclonal[100], Biotin 100 ul AP, ELISA, WB	100 ul		AP, ELISA, WB	More Data
247214-Biotin	More Data 247214-Biotin Mouse Anti-Homeobox B1 antibody, Monoclonal[2F12], Biotin 100 ul AP, ELISA, IP, WB	100 ul		AP, ELISA, IP, WB	More Data
247214-HRP	More Data 247214-HRP Mouse Anti-Homeobox B1 antibody, Monoclonal[2F12], HRP 100 ul AP, ELISA, IP, WB	100 ul		AP, ELISA, IP, WB	More Data
128020-HRP	More Data 128020-HRP Mouse Anti-Homeobox B1 antibody, Monoclonal[3D1] 100 ul Hu AP, ELISA, WB	100 ul	Hu	AP, ELISA, WB	More Data
128020-PE	More Data 128020-PE Mouse Anti-Homeobox B1 antibody, Monoclonal[3D1] 100 ul Hu AP, ELISA, WB	100 ul	Hu	AP, ELISA, WB	More Data
036696-ML405	More Data 036696-ML405 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Mo AP, WB	100 ul	Mo	AP, WB	More Data
036696-ML490	More Data 036696-ML490 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Mo AP, WB	100 ul	Mo	AP, WB	More Data
247216-Biotin	More Data 247216-Biotin Mouse Anti-Homeobox B1 antibody, Monoclonal[3F9], Biotin 100 ul AP, ELISA, WB	100 ul		AP, ELISA, WB	More Data
247212-HRP	More Data 247212-HRP Mouse Anti-Homeobox B1 antibody, Monoclonal[1B5], HRP 100 ul AP, ELISA, WB	100 ul		AP, ELISA, WB	More Data
128020-AP	More Data 128020-AP Mouse Anti-Homeobox B1 antibody, Monoclonal[3D1] 100 ul Hu AP, ELISA, WB	100 ul	Hu	AP, ELISA, WB	More Data
036696-ML750	More Data 036696-ML750 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Mo AP, WB	100 ul	Mo	AP, WB	More Data
128019-FITC	More Data 128019-FITC Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Hu AP, WB	100 ul	Hu	AP, WB	More Data
247214-FITC	More Data 247214-FITC Mouse Anti-Homeobox B1 antibody, Monoclonal[2F12], FITC 100 ul AP, ELISA, IP, WB	100 ul		AP, ELISA, IP, WB	More Data
128019-HRP	More Data 128019-HRP Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Hu AP, WB	100 ul	Hu	AP, WB	More Data
247216-HRP	More Data 247216-HRP Mouse Anti-Homeobox B1 antibody, Monoclonal[3F9], HRP 100 ul AP, ELISA, WB	100 ul		AP, ELISA, WB	More Data
247215-FITC	More Data 247215-FITC Mouse Anti-Homeobox B1 antibody, Monoclonal[3A11], FITC 100 ul AP, ELISA, WB	100 ul		AP, ELISA, WB	More Data
128020-FITC	More Data 128020-FITC Mouse Anti-Homeobox B1 antibody, Monoclonal[3D1] 100 ul Hu AP, ELISA, WB	100 ul	Hu	AP, ELISA, WB	More Data
128020-Biotin	More Data 128020-Biotin Mouse Anti-Homeobox B1 antibody, Monoclonal[3D1] 100 ul Hu AP, ELISA, WB	100 ul	Hu	AP, ELISA, WB	More Data
247212-Biotin	More Data 247212-Biotin Mouse Anti-Homeobox B1 antibody, Monoclonal[1B5], Biotin 100 ul AP, ELISA, WB	100 ul		AP, ELISA, WB	More Data
036696-ML650	More Data 036696-ML650 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Mo AP, WB	100 ul	Mo	AP, WB	More Data
247213-HRP	More Data 247213-HRP Mouse Anti-Homeobox B1 antibody, Monoclonal[200000], HRP 100 ul AP, ELISA, IP, WB	100 ul		AP, ELISA, IP, WB	More Data
247213-Biotin	More Data 247213-Biotin Mouse Anti-Homeobox B1 antibody, Monoclonal[200000], Biotin 100 ul AP, ELISA, IP, WB	100 ul		AP, ELISA, IP, WB	More Data
036696-ML550	More Data 036696-ML550 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Mo AP, WB	100 ul	Mo	AP, WB	More Data
247215-HRP	More Data 247215-HRP Mouse Anti-Homeobox B1 antibody, Monoclonal[3A11], HRP 100 ul AP, ELISA, WB	100 ul		AP, ELISA, WB	More Data
247216-FITC	More Data 247216-FITC Mouse Anti-Homeobox B1 antibody, Monoclonal[3F9], FITC 100 ul AP, ELISA, WB	100 ul		AP, ELISA, WB	More Data
247211-FITC	More Data 247211-FITC Mouse Anti-Homeobox B1 antibody, Monoclonal[100], FITC 100 ul AP, ELISA, WB	100 ul		AP, ELISA, WB	More Data
036696	More Data 036696 Rabbit Anti-Homeobox B1 antibody, Polyclonal 200 ul Mo AP, ELISA, WB	200 ul	Mo	AP, ELISA, WB	More Data
128019-Biotin	More Data 128019-Biotin Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Hu AP, WB	100 ul	Hu	AP, WB	More Data
Boster Biological Technology
A04724	More Data A04724 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Hu, Mo IHC-F, IHC-P IHC-F IHC-P	100 ul	Hu, Mo	IHC-F, IHC-P	More Data
A04724-1	More Data A04724-1 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ug Hu, Mo, Rt WB WB	100 ug	Hu, Mo, Rt	WB	More Data
M04724	More Data M04724 Rabbit Anti-Homeobox B1 antibody, Polyclonal 80 ul Hu, Mo WB WB	80 ul	Hu, Mo	WB	More Data
Abbexa
abx029434	More Data abx029434 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ul Mo WB WB	100 ul	Mo	WB	More Data
abx216012	More Data abx216012 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ug Hu WB WB	100 ug	Hu	WB	More Data
abx005076	More Data abx005076 Rabbit Anti-Homeobox B1 antibody, Polyclonal 100 ug Hu IHC-F, IHC-P, WB WB	100 ug	Hu	IHC-F, IHC-P, WB	More Data
abx225220	More Data abx225220 Rabbit Anti-Homeobox B1 antibody, Polyclonal 50 ul Hu, Mo IHC-F, IHC-P, WB WB	50 ul	Hu, Mo	IHC-F, IHC-P, WB	More Data
Show more from Abbexa
abx210521	More Data abx210521 Rabbit Anti-Homeobox B1 antibody, Polyclonal 50 ul Hu ELISA, IHC-F, IHC-P	50 ul	Hu	ELISA, IHC-F, IHC-P	More Data
abx322130	More Data abx322130 Rabbit Anti-Homeobox B1 antibody, Polyclonal 20 ul Hu, Mo ELISA, WB	20 ul	Hu, Mo	ELISA, WB	More Data
abx339809	More Data abx339809 Rabbit Anti-Homeobox B1 antibody, Polyclonal 50 ul Hu ELISA, IHC-F, IHC-P	50 ul	Hu	ELISA, IHC-F, IHC-P	More Data
abx113046	More Data abx113046 Rabbit Anti-Homeobox B1 antibody, Polyclonal 50 ul Hu, Mo ELISA, WB	50 ul	Hu, Mo	ELISA, WB	More Data

ELISA Kits

5 Homeobox B1 ELISA Kits from 2 suppliers

Bac	Bacteria
Bt	Bat
Bv	Bovine
Cel	C.Elegans
Cml	Camel
Cn	Canine
chem	Chemical
Ch	Chicken
Dk	Donkey
Dr	Drosophila
Du	Duck
Eq	Equine
Eu	Eukaryotes
Fe	Feline
Fi	Fish
Fr	Frog
Fu	Fungus
Gt	Goat
Gf	Goldfish
GP	Guinea Pig
Ha	Hamster
Hu	Human
Inv	Invertebrates
Llm	Llama
Mam	Mammals
Mo	Mouse
Pl	Plant
Po	Porcine
Pr	Primate
Pro	Prokaryotes
Rb	Rabbit
Rt	Rat
Sh	Sheep
Sq	Squirrel
Vert	Vertebrates
Vi	Virus
Xe	Xenopus
Yt	Yeast
Zf	Zebrafish

AP	Affinity purification
Bl	Blocking
ChIP	Chromatin Immunoprecipitation
DB	Dot Blot
EMSA	Electron Microscopy
ELISA	Enzyme Linked Immunosorbent Assay
FACS	Flow Cytometry
FA	Functional Assay
GS	Gel Shift
ICC	Immunocytochemistry
ID	Immunodiffusion
IF	Immunofluorescence
IHC-F	Immunohistochemistry frozen
IHC-P	Immunohistochemistry paraffin
IP	Immunoprecipitation
IVT	In vivo targeting
Neu	Neutralising
Pep-ELISA	Peptide ELISA
PLA	Proximity Ligation Assay
RIA	Radioimmunoassay
WB	Western Blot

164 matching Homeobox B1 antibodies from 18 suppliers

Top Homeobox B1 Antibodies

FineTest

Enzo Life Sciences

Atlas Antibodies

Homeobox B1 information

Aliases

10 Applications, 17 Species currently selected

Homeobox B1 antibodies

FineTest

Enzo Life Sciences

Atlas Antibodies

Lifespan Biosciences

R&D Systems

Proteintech Group

Origene

United States Biological

Boster Biological Technology

Abbexa

ELISA Kits

All None	35	3	12	9	4	4		3		1
	WB	ELISA	IHC-P	IHC-F	IF	ICC	AP	IP	Pep-ELISA	FACS
Human	80	42	29	19	17	15	11	5	2	1
Mouse	74	39	20	11	15	13	6	1	2	1
Rat	18	5	3	2	2
Canine	9
Bovine	9
Guinea Pig	6
Porcine	5
Bacteria	5		1	1
Rabbit	4
Equine	3
Hamster	2
Primate	2		1	1
Chicken	1		1	1
Zebrafish	1
Xenopus	1
Bat	1
Mammals	1