Activities in Family	chitinase (EC 3.2.1.14); lysozyme (EC 3.2.1.17); endo-β-N-acetylglucosaminidase (EC 3.2.1.96); peptidoglycan hydrolase with endo-β-N-acetylglucosaminidase specificity (EC 3.2.1.-); Nod factor hydrolase (EC 3.2.1.-); xylanase inhibitor; concanavalin B; narbonin
Mechanism	Retaining
Clan	GH-K
3D Structure Status	( β / α ) 8
Catalytic Nucleophile/Base	carbonyl oxygen of C-2 acetamido group of substrate
Catalytic Proton Donor	Glu (experimental)
Note	Contains chitinases of classes III and V. Contains non-catalytic proteins such as xylanase inhibitor; concanavalin B; narbonin
External resources	CAZypedia; HOMSTRAD; PROSITE;
Commercial Enzyme Provider(s)	NZYTech; PROZOMIX;
Statistics	GenBank accession (14006); Uniprot accession (3282); PDB accession (300); 3D entries (77); cryst (4)

Archaea
Protein Name	EC#	Organism	GenBank	Uniprot	PDB/3D Carbohydrate Ligands Resolution (Å)
chitinase (PF1234+PF1233;ChiA+ChiB) (Chi18B+Chi18A)	3.2.1.14 3.2.1.14	Pyrococcus furiosus DSM 3638	AAL81357.1 NP_578962.1	Q8U1H5	2DSK[A,B] 1.50 3A4W[A,B] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.80 3A4X[A,B] β-D-GlcpNAc-(1-4)-β-D-ManpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc 1.76
Bacteria
Protein Name	EC#	Organism	GenBank	Uniprot	PDB/3D Carbohydrate Ligands Resolution (Å)
chitinase (ChitiB)	3.2.1.14	Arthrobacter sp. TAD20	CAB62499.1	Q9REI6	1KFW[A] 1.74
A8C77_18710 (Chi36)		Bacillus anthracis Tangail-1	ANH87820.1		5KZ6[A,B] 1.25
cortex-lytic enzyme SleL		Bacillus cereus ATCC 10876	KFL63465.1		4S3J[A] 1.60
chitinase (ChiNCTU2)	3.2.1.14	Bacillus cereus NCTU2 / 42	ACY39278.1	D0VV09	cryst     3N11[A] 1.35 3N12[A] 1.20 3N13[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.70 3N15[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.94 3N17[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.20 3N18[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.60 3N1A[A] 2.00
chitinase A1 (ChiA;ChiA1)	3.2.1.14	Bacillus circulans WL-12	AAA81528.1	P20533	1ITX[A] 1.10
spore cortex-specific N-acetylglucosaminidase (SleL;YaaH;BMQ_0021)	3.2.1.-	Bacillus megaterium QM B1551	ADE67156.1 ABS32202.1 YP_003560590.1	A7LFH9 D5DUS2	4S3K[A] 1.70
BSU05710 (YdhD)		Bacillus subtilis subsp. subtilis str. 168	CAB12390.1 AIY91858.1 AQR80523.1 AQR84736.1 CAB12390.2 NP_388452.1	O05495	3CZ8[A,B] 2.20
chitinase (BT2825)		Bacteroides thetaiotaomicron VPI-5482	AAO77931.1 NP_811737.1	Q8A3X9	3CO4[A] β-D-GlcpN 1.92 3FND[A] 1.90
endo-β-N-acetylglucosaminidase (BT3987;BT_3987)	3.2.1.96	Bacteroides thetaiotaomicron VPI-5482	AAO79092.1 NP_812898.1	Q8A0N4	3POH[A] 1.55
chitinase (ChiL)	3.2.1.14	Chitiniphilus shinanonensis SAY3	BAK53954.1		cryst
CV3316		Chromobacterium violaceum ATCC 12472	AAQ60980.1 NP_902986.1	Q7NSV3	4TXG[A] 1.75
chitinase (CV2736;CV_2736)		Chromobacterium violaceum ATCC 12472	AAQ60406.1 NP_902406.1	Q7NUG2	5JH8[A] <carb_like_MLZ> 1.02
chitinase (Chi45;CvChi45;CV2935)	3.2.1.14	Chromobacterium violaceum ATCC 12472	AAQ60603.1 NP_902605.1	Q7NTW8	4TX8[A] β-D-GlcpNAc 2.17
Dhaf_4489		Desulfitobacterium hafniense DCB-2	ACL22490.1	B8FWJ2	4WIW[A,B,C,D,E,F] 2.64
endo-N-acetylglucosaminidase F1 (EndoF1;Endo F1)	3.2.1.96	Elizabethkingia meningoseptica ATCC 33958	AAA24922.1	P36911	2EBN[A] 2.00
endo-N-acetylglucosaminidase F3 (EndoF3;Endo F3)	3.2.1.96	Elizabethkingia meningoseptica ATCC 33958	AAA24924.1	P36913	1EOK[A] 1.80 1EOM[A] β-D-Galp-(1-4)-β-D-GlcpNAc-(1-2)-α-D-Manp-(1-6)[β-D-Galp-(1-4)-β-D-GlcpNAc-(1-2)-α-D-Manp-(1-3)]-β-D-Manp-(1-4)-β-D-GlcpNAc 2.10
chitinase II (KPN_01201)		Klebsiella pneumoniae subsp. pneumoniae MGH 78578	ABR76634.1	A6T7R3	3QOK[A] 2.60
chitinase (ChiA;L9964) (Chi18A)	3.2.1.14	Lactococcus lactis subsp. lactis Il1403	AAK06048.1 NP_268107.1	Q9CE95	3IAN[A] 1.75
chitinase 60 (Chi60;MmChi60)	3.2.1.14	Moritella marina	CAM88673.1	B1VBB0	4HMC[A] 2.10 4HMD[A] 2.26 4HME[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.07 4MB3[A] 1.55 4MB4[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.48 4MB5[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc 1.64 4W5Z[A] 1.32
chitinase F1 (ChiF1)		Nocardiopsis sp. F96	BAC98349.1	Q76GR3	cryst
multi-modular chitinase (ChiW)	3.2.1.14	Paenibacillus sp. FPU-7	BAM67143.1		5GZT[B] 2.10 5GZU[A,B] 2.03 5GZV[A,B] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.61
multi-modular chitinase (ChiW)	3.2.1.14	Paenibacillus sp. FPU-7	BAM67143.1		5GZT[B] 2.10 5GZU[A,B] 2.03 5GZV[A,B] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.61
class V chitinase (PFL_1213)		Pseudomonas protegens Pf-5	AAY90500.1	Q4KHD9	4Q6T[A] 1.40
chitinase A (ChiA;SmChiA)	3.2.1.14	Serratia marcescens 2170 / 27117 / BJL200 / ATCC990 / QMB1466	AAA26551.1 AAR10884.1 BAA31567.1 CAA27292.1 CAA85291.1	O83008 P07254	1CTN[A] 2.30 1EDQ[A] 1.55 1EHN[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.90 1EIB[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.80 1FFQ[A] β-D-AllpNAc-(1-4)-β-D-AllpNAc-(1-1)-<non_carb> <carb_like_AMI> 1.90 1FFR[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.80 1K9T[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.80 1NH6[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.05 1RD6[A] 2.60 1X6L[A] 1.90 1X6N[A] β-D-AllpNAc-(1-4)-β-D-AllpNAc-(1-1)-<non_carb> 2.00 2WK2[A] <non_carb>-(1-2)-β-D-GlcpN-(1-4)[<non_carb>-(1-2)]-β-D-GlcpN 2.05 2WLY[A] 2.40 2WLZ[A] 1.82 2WM0[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.90
chitinase B (ChiB;SmChiB)	3.2.1.14	Serratia marcescens BJL200	CAA85292.1	Q54276	1E15[A,B] 1.9 1E6N[A,B] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.25 1E6P[A,B] 1.70 1E6R[A,B] β-D-AllpNAc-(1-4)-β-D-AllpNAc-(1-1)-<non_carb> <carb_like_AMI> 2.5 1E6Z[A,B] β-D-GlcpNAc β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.99 1GOI[A,B] 1.45 1GPF[A,B] 1.85 1O6I[A,B] 1.70 1OGB[A,B] 1.85 1OGG[A,B] β-D-AllpNAc-(1-4)-β-D-AllpNAc-(1-1)-<non_carb> <carb_like_AMI> 1.97 1UR8[A,B] β-D-GlcpNAc-(1-4)-α-D-GlcpNAc β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.9 1UR9[A,B] β-D-GlcpNAc-(1-4)-β-D-Glcp1N2NAc-(1-1)-<non_carb> 1.8 1W1P[A,B] 2.1 1W1T[A,B] 1.9 1W1V[A,B] 1.85 1W1Y[A,B] 1.85
chitinase C / C1 (ChiC;ChiC1;SmChiC;SmChi18C)	3.2.1.14	Serratia marcescens BJL200	CAF74787.1	Q700B8	4AXN[A,B] 1.68
chitinase B (ChiB)	3.2.1.14	Serratia marcescens QMB1466 / BJL200	CAA33278.1 AAL57855.1 BAA31568.1	P11797 Q547S1	1H0G[A,B] 2.00 1H0I[A,B] 2.00 3WD0[A] 1.70 3WD1[A] 2.30 3WD2[A] 2.20 3WD3[A] 2.20 3WD4[A] 2.00 4Z2G[A] 2.60 4Z2H[A] 2.35 4Z2I[A] 2.00 4Z2J[A] 2.60 4Z2K[A] 2.30 4Z2L[A] 2.30
chitinase D (ChiD;SpChiD;Spro_2725)	3.2.1.14	Serratia proteamaculans 568	ABV41826.1	A8GFD6	4LGX[A] 1.49 4NZC[A] 1.45 4PTM[A] β-D-GlcpNAc 1.70 4Q22[A] β-D-GlcpNAc 1.93
endo-β-N-acetylglucosaminidase S (EndoS;NdoS;Endo S)	3.2.1.96	Streptococcus pyogenes 40/58 AP1	AAK00850.1	Q9APG4	cryst
endo-β-N-acetylglucosaminidase (EndoS;M5005_Spy_1540)	3.2.1.96	Streptococcus pyogenes MGAS5005	AAZ52158.1		4NUY[A] 2.61 4NUZ[A] 1.91
chitinase A (ChiA;Chi18bA;SCK15.05c;SCO5003) (Chi18A)	3.2.1.14	Streptomyces coelicolor A3(2)	CAB92596.1 BAA75642.1 NP_629155.1	Q9KY99 Q9Z9M9	3EBV[A] 1.50
endo-β-N-acetylglucosaminidase H (EndoH;Endo-H;Endo H)	3.2.1.96	Streptomyces plicatus	AAA26738.1 AAX00996.1 AAY74563.1 ABA35708.1	P04067	1C3F[A] 2.10 1C8X[A] 2.00 1C8Y[A] 2.00 1C90[A,B] 2.10 1C91[A] 2.10 1C92[A] 2.10 1C93[A] 2.10 1EDT[A] 1.90
chitinase (Chi40)	3.2.1.14	Streptomyces thermoviolaceus OPC-520	BAA03404.1	Q56077	4W5U[A,B] 2.77
chitinase A (ChiA;VhChiA)	3.2.1.14	Vibrio harveyi	AAK11576.1	Q9AMP1	3ARO[A] 2.22 3ARP[A] 1.55 3ARQ[A] α-L-2-deoxy-Fucp3N-(1-1)-<non_carb> 1.50 3ARR[A] 1.65 3ARS[A] 2.45 3ART[A] 2.23 3ARU[A] 1.90 3ARV[A] 1.50 3ARW[A] 1.50 3ARX[A] 1.16 3ARY[A] 1.35 3ARZ[A] 1.82 3AS0[A] 2.00 3AS1[A] 2.00 3AS2[A] 1.80 3AS3[A] 2.40 3B8S[A,B] 2.00 3B9A[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.80 3B9D[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.72 3B9E[A] 1.70
chitinase (Chi1) (Yen-Tc subunit)	3.2.1.14	Yersinia sp. MH-1 / Yersinia entomophaga MH96	ABG33870.1	B6A876	3OA5[A,B] 1.74 4A5Q[A,B,C,D,E] 17.00
chitinase (Chi2) (Yen-Tc subunit)	3.2.1.14	Yersinia sp. MH-1 / Yersinia entomophaga MH96	ABG33867.1		4DWS[A,B,C,D] <carb_like_MLZ> 1.80
Eukaryota
Protein Name	EC#	Organism	GenBank	Uniprot	PDB/3D Carbohydrate Ligands Resolution (Å)
chitinase (ChiC;AtChiC;At4g19810)	3.2.1.14	Arabidopsis thaliana	CAA19698.1 ABL66795.1 AEE84228.1 ANM66365.1 BAE99745.1 CAB78983.1 NP_193716.1	O81862	3AQU[A,B,C,D] 2.01
chitinase (ChiC;AFUA_5G03850) (fragment)		Aspergillus fumigatus Af293	EAL85921.2		2Y8V[A,B,C,D] 1.99
chitinase B1 (ChiB1)	3.2.1.14	Aspergillus fumigatus ATCC 13073	AAO61686.1	Q873X9	1W9P[A,B] 1.7 1W9U[A,B] 1.85 1W9V[A,B] 2.00 2A3A[A,B] 2.10 2A3B[A,B] 1.90 2A3C[A,B] 2.07 2A3E[A,B] β-D-AllpNAc-(1-4)-β-D-AllpNAc-(1-1)-<non_carb> <carb_like_AMI> 1.95 2IUZ[A,B] 1.95 3CH9[A,B] 2.20 3CHC[A,B] 1.90 3CHD[A,B] 2.00 3CHE[A,B] 2.05 3CHF[A,B] 1.95
chitinase A1 (ChiA1)		Aspergillus fumigatus ATCC 13073	AAO61685.1	Q873Y0	2XTK[A,B] 2.00 2XUC[A,B,C] 2.30 2XVN[A,B,C] 2.35 2XVP[A,B] 2.00 4TX6[A,B] 1.90
chitinase (ChiB)	3.2.1.14	Aspergillus fumigatus YJ-407	AAP23218.1	Q870C0	1WNO[A,B] α-D-GlcpNAc β-D-GlcpNAc 2.10
signal processing protein (Chi3L1;Spc-40)		Bos taurus	AAP41220.2 AAP41220.1	P30922	1OWQ[A] 2.00 2ESC[A] 2.10
signalling glycoprotein / mammary gland protein 40 (SPB-40) (partial)		Bubalus bubalis	AAP42568.2	Q7YS85	1SV8[A] 2.80 1TFV[A] 2.90 2O9O[A] 2.80 2QF8[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc 2.80 4MAV[A] α-D-Ribf 2.79 4ML4[A] 2.50 4MPK[A] β-D-GlcpNAc 2.65 4MTV[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.80 4NSB[A] 3.05 4Q7N[A] 1.79
signaling protein / mammary gland protein (SPB-40;Mgp-40)		Bubalus bubalis	AFN52415.1	Q7YS85	4S06[A] 1.49 5WSI[A] 1.49 5WSJ[A] α-D-Ribf 1.65 5WSM[A] 1.79
concanavalin B		Canavalia ensiformis	CAA58450.1	P49347	1CNV[A] 1.65
signalling protein (SPG-40;MGP-40;BP40;CHI3L1)		Capra hircus	AAL87007.1	Q8SPQ0	1LJY[A] 2.90 1QZO[A] 2.35 1SYT[A] 2.60 1ZBV[A] 3.21 1ZBW[A] β-D-GlcpNAc-(1-4)-D-1-deoxy-GlcpNAc 2.80 1ZU6[A] β-D-GlcpNAc-(1-4)-α-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc-(1-4)-D-1-deoxy-GlcpNAc 2.28 1ZU7[A] α-D-GlcpNAc-(1-4)-α-D-GlcpNAc-(1-4)-α-D-GlcpNAc-(1-4)-D-1-deoxy-GlcpNAc 2.09 1ZU8[A] α-D-GlcpNAc-(1-4)-α-D-GlcpNAc-(1-4)-D-1-deoxy-GlcpNAc 3.05 1ZU9[A] α-D-GlcpNAc-(1-4)-α-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-D-1-deoxy-GlcpNAc 3.10 2A09[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-D-1-deoxy-GlcpNAc 2.45 2A0O[A] α-D-ManpNAc-(1-4)-α-D-ManpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-D-1-deoxy-GlcpNAc 2.90 2AOS[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-D-1-deoxy-GlcpNAc 2.90 2B2Z[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-D-1-deoxy-GlcpNAc 2.28 2B31[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc-(1-4)-D-1-deoxy-GlcpNAc 3.10 2B40[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc-(1-4)-D-1-deoxy-GlcpNAc 2.90 2B41[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-D-1-deoxy-GlcpNAc 2.09 2DSZ[A] 2.35 2DT0[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.45 2DT1[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.09 2DT2[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.90 2DT3[A] β-D-GlcpNAc-(1-4)-α-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.28 2O92[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-D-1-deoxy-GlcpNAc 3.00 2OLH[A] α-D-Glcp-(1-4)-β-D-Glcp 2.78
chitinase (CrChi1)	3.2.1.14	Clonostachys rosea CGMCC 0806	ABV57861.1	A9LI60	3G6L[A] 1.80 3G6M[A] 1.65
complement fixation-chitinase	3.2.1.14	Coccidioides posadasii SILVEIRA	AAB48567.1 AAB48566.1	P0CB51 P54196	1D2K[A] 2.20 1LL4[A] β-D-AllpNAc-(1-4)-β-D-AllpNAc-(1-1)-<non_carb> <carb_like_AMI> 2.80 1LL6[A] 2.80 1LL7[A] 2.00
chitinase (CVC) (partial)		Crocus vernus			3SIM[B] 2.10 3SIM[A] 2.10
chitinase A (ChiA;CrChiA;CrChi-A)	3.2.1.14	Cycas revoluta	BAD98525.1	Q4W6L6	3WIJ[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.30 4MNJ[A] 1.58 4MNK[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.29 4MNL[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.60 4MNM[A] β-D-GlcpNAc 1.80 4R5E[A] β-D-AllpNAc-(1-4)-β-D-AllpNAc-(1-1)-<non_carb> 1.50
imaginal disk growth factor 2 (Idgf2;CG4475)		Drosophila melanogaster	AAC99418.1 AAF45017.1 AAF53536.1 AAL28234.1 ADD74348.1 ADF50363.1 AFH03716.1 AFH03717.1 NP_477257.2	Q9V3D4 Q9V3D4	1JND[A] 1.30 1JNE[A] 1.70
bifunctional chitinase / lysozyme (hevamine A)	3.2.1.14 3.2.1.17	Hevea brasiliensis	CAA07608.1 AAB19633.1 ABI32402.1 ABI32402.2 ADR82196.1 CAA09110.1	P23472	1HVQ[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.20 1KQY[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.92 1KQZ[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.92 1KR0[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.92 1KR1[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.00 1LLO[A] β-D-AllpNAc-(1-4)-β-D-AllpNAc-(1-1)-<non_carb> <carb_like_AMI> 1.85 2HVM[A] 1.80
chitinase-like (YKL-39;Chi3L2;CHI3L2)		Homo sapiens	AAB04533.1 AAB04534.1 AAC50597.1 AAH11460.1 AAP35413.1 AAQ41065.1 ABA82278.1 ABH96470.1 ACM83238.1 BAD97036.1 BAG60679.1 CAH70799.1 NP_003991.2	Q15782 Q96F97	4AY1[A,B,C,D,E,F,G,H,I,J, β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.95 4P8U[A] 2.40 4P8V[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.64 4P8W[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc 1.87 4P8X[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.48
chitinase / chitotriosidase (Chit1;CHIT1;CHIT-1;HCHT;HsCht)	3.2.1.14	Homo sapiens	CAC37767.1 AAC50246.1 AAE83140.1 AAE83141.1 AAG10644.1 AAH69614.1 AAI03696.1 AAI05681.1 AAI05682.1 AAI05683.1 AAY73903.1 AAY73904.1 ABE14345.1 BAG51478.1 CAC37768.1 NP_003456.1	Q13231	1GUV[A] 2.35 1HKI[A] β-D-AllpNAc6Me-(1-4)-β-D-GlcpNAc-(1-1)-<non_carb> <carb_like_ALI> 2.55 1HKJ[A] β-D-AllpNAc6Me-(1-4)-β-D-AllpNAc-(1-1)-<non_carb> <carb_like_AMI> 2.6 1HKK[A] β-D-AllpNAc-(1-4)-β-D-AllpNAc-(1-1)-<non_carb> <carb_like_AMI> 1.85 1HKM[A] β-D-AllpNAc-(1-4)-β-D-AllpNAc-(1-1)-<non_carb> <carb_like_ALI> 2.55 1LG1[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.78 1LG2[A] 2.10 1LQ0[A] 2.20 1WAW[A] 1.75 1WB0[A] 1.65 4WJX[A] 1.00 4WK9[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.10 4WKA[A] 0.95 4WKF[A] 1.10 4WKH[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.05 5HBF[A,B] 1.95
chitin-binding lectin / chitinase 3-like-1 (Chi3L1;gp-39;HC-gp39;HumGP39;YKL-40)		Homo sapiens	AAH08568.1 AAA16074.1 AAH38354.1 AAH39132.1 AAP35887.1 ABA82376.1 ACM80555.1 ACM82449.1 BAG35757.1 CAA69661.1 CAB76472.1 NP_001267.1	B2R7B0 P36222	1HJV[A,B,C,D] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.75 1HJW[A,B] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.3 1HJX[A,B,C,D] 1.85 1NWR[A,B,C,D] 2.70 1NWS[A,B,C,D] β-D-GlcpNAc-(1-4)-α-D-GlcpNAc β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.70 1NWT[A,B,C,D] β-D-GlcpNAc-(1-4)-α-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc β-D-GlcpNAc-(1-4)-α-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.50 1NWU[A,B,C,D] α-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc α-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.20
acidic chitinase / acidic mammalian chitinase (ChiA;CHIA;hAMCase)	3.2.1.14	Homo sapiens	AAG60019.1 AAH36339.1 AAH36339.2 AAH47336.1 AAH47336.2 AAI06911.1 AAI39902.1 AAI39921.1 AAX02309.1 AAX02311.1 AAX54833.1 AAX81431.1 AAX81432.1 AAX81433.1 AAX81434.1 AAY07520.1 AAY07521.1 BAA86980.1 BAA86981.1 BAF83391.1 CAD35096.1 CAH70802.1 CAH70803.1 CAH70804.1 CAI19263.1 CAI19265.1 CAI19266.1 NP_068569.1	Q9BZP6	2YBT[A,B,C,D,E,F] 2.22 2YBU[A,B,C,D,E,F] 2.25 3FXY[A,B,C,D] 2.00 3FY1[A,B] β-D-AllpNAc6Me-(1-4)-β-D-AllpNAc-(1-1)-<non_carb> <carb_like_AMI> 1.70 3RM4[A,B] 1.90 3RM8[A,B] 1.80 3RM9[A,B] 2.10 3RME[A,B] 1.80
chitin-binding protein (Brp39)		Mus musculus	AAH05611.1 AAH03780.1 AAH04734.1 ABY53363.1 BAC34654.1 BAE33251.1 CAA63603.1 CAJ18491.1 NP_031721.1	Q4FJW9 Q61362 Q61362	cryst
ECF-L (CHI3L3;Ym1)		Mus musculus	BAA13458.2 AAB01230.1 AAB62394.2 AAH61154.1 AAX02313.1 BAE23385.1 BAE32572.1 NP_034022.1	O35744 O35744 Q3U462	1E9L[A] β-D-GlcpN 2.5 1VF8[A] 1.31
chitinase (ChiV;Chi-V;NtChiV;ChiC1)	3.2.1.14	Nicotiana tabacum	CAA54374.1 CAB58462.1	Q43576	3ALF[A] 1.20 3ALG[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-D-1-deoxy-GlcpNAc 1.80
chitinase-h (Chi-H;OfChi-H)	3.2.1.14	Ostrinia furnacalis	BAE16587.1 AGZ20170.1	Q4AE59	5GPR[A] 3.23 5GQB[A] β-D-GlcpN-(1-4)-β-D-GlcpN-(1-4)-β-D-GlcpN-(1-4)-β-D-GlcpN-(1-4)-β-D-GlcpN-(1-4)-β-D-GlcpN-(1-4)-β-D-GlcpN 2.70
chitinase (Cht5;OfChtI;OfCHT5)	3.2.1.14	Ostrinia furnacalis	ABB97081.2 AAW50396.1 ABB97081.1 ABI81757.1	Q2V6H4	3W4R[A] 1.70 3WKZ[A] 2.00 3WL0[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.20 3WL1[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 1.77 3WQV[A] β-D-GlcpN-(1-4)-β-D-GlcpN-(1-4)-β-D-GlcpN-(1-4)-β-D-GlcpN-(1-4)-β-D-GlcpN 2.04 3WQW[A] β-D-GlcpN-(1-4)-β-D-GlcpN-(1-4)-β-D-GlcpN-(1-4)-β-D-GlcpN-(1-4)-β-D-GlcpN 2.00
signal processing protein (SPS-40;Chi3L1)		Ovis aries	AAQ94054.1	Q6TMG6	1R2V[A] 2.07 1SR0[A] 3.05 1ZBK[A] β-D-GlcpNAc 2.90 1ZL1[A] 3.50 2AO8[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-D-1-deoxy-GlcpNAc 2.20 2AOK[A] α-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-D-1-deoxy-GlcpNAc 2.80 2B2L[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-D-1-deoxy-GlcpNAc 2.54 2B2P[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc-(1-4)-D-1-deoxy-GlcpNAc 2.80 2DPE[A] 2.07 2DSU[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc 2.20 2DSV[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc 2.54 2DSW[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.80 2FDM[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-α-D-GlcpNAc 3.00 2G41[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 3.00 2G8Z[A] β-D-GlcpNAc-(1-4)-β-D-GlcpNAc-(1-4)-D-1-deoxy-GlcpNAc 2.50 2PI6[A] 1.65
endochitinase (Ppl2)	3.2.1.14	Parkia platycephala	CAO78600.1	A6ZJJ1	2GSJ[A] 1.73
chitinase A (ChiA;PrChiA)	3.2.1.14	Pteris ryukyuensis	BAE98134.1	Q0WYK2	4RL3[A,B] 1.57
class III chitinase (Psc)	3.2.1.14	Punica granatum	BAK68869.1		4TOQ[A,B,C,D] 1.60
chitinase-related agglutinin (RobpsCRA)		Robinia pseudoacacia	ABL98074.1	A1YZD2	4URI[A,B] 1.85
chitinase (Cts1;YLR286C)	3.2.1.14	Saccharomyces cerevisiae S288c	AAT93059.1 AAB67331.1 ABC16985.1 NP_013388.1	P29029	2UY2[A] 1.60 2UY3[A] 1.90 2UY4[A] 1.75 2UY5[A] 1.6 4TXE[A] 1.80
xylanase-A-amylase inhibitor / allergen (XAIP-III;Scam1) (partial)		Scadoxus multiflorus	ADO23650.1		3O9N[A] 2.40 4N42[A] 2.20
haementhin (XAIP)		Scadoxus multiflorus	ACD36579.1	B2ZGS7	3D5H[A] 2.00 3HU7[A] 2.00 3M7S[A] β-D-Glcp-(1-4)-β-D-Glcp 2.40 3OIH[A] α-D-Glcp-(1-1)-α-D-Glcp 1.87
xylanase and α-amylase inhibitor isoform II		Scadoxus multiflorus AIIMSBP-002	ADJ78351.1	D9MWI4	3MU7[A] 1.29
signal processing protein (Spp-40)		Sus scrofa	AAV30548.1	Q29411	1XHG[A] 2.90 1XRV[A] 2.10 1ZB5[A] 2.45 1ZBC[A] 2.29
Chi-lectin (TCLL;TACC-III) (partial)		Tamarindus indica			4B15[A] 1.49 4B16[A] β-D-GlcpNAc 1.61
mannosyl-glycoprotein endo-β-N-acetylglucosaminidase T (EndoT;Endo T;ENGase;Eng18A)	3.2.1.96	Trichoderma reesei RUT-C30	CAZ16624.1 CAL49862.1 CAL49863.1	C4RA89	4AC1[X] 1.30
xylanase inhibitor protein I (XipI;XIP-I;Xip)		Triticum aestivum	CAD19479.1 ADB81849.1 AGN71004.1	Q8L5C6	1OM0[A] 1.80 1TA3[A] 1.70 1TE1[A] 2.50
narbonin		Vicia narbonensis	CAA80983.1 CAA80979.1 CAA80980.1	Q08884 Q41675	1NAR[A] 1.80
Viruses
Protein Name	EC#	Organism	GenBank	Uniprot	PDB/3D Carbohydrate Ligands Resolution (Å)
Ac-ChiA		Autographa californica nucleopolyhedrovirus E2	AIU56979.1 CAD79454.1		5DEZ[A,B] β-D-GlcpNAc β-D-GlcpNAc-(1-4)-β-D-GlcpNAc 2.30 5DF0[A,B] β-D-GlcpNAc 3.25
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