2AAN,1QHQ


Conserved Protein Domain Family
Auracyanin
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cd04233: Auracyanin 
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Auracyanins A and B and similar proteins
This subfamily includes both auracyanins A and B from the photosynthetic bacterium Chloroflexus aurantiacus and similar proteins. Auracyanins A and B are very similar blue copper proteins with 38% sequence identity and are homologous to the bacterial redox protein Azurin. However, auracyanin A is expressed only when C. aurantiacus cells are grown in light, whereas auracyanin B is expressed in both dark and light conditions. Thus, auracyanin A may function as a redox partner in photosynthesis, while auracyanin B may function in aerobic respiration.
Links
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Statistics
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PSSM-Id: 259895
Aligned: 41 rows
Threshold Bit Score: 115.424
Created: 31-May-2005
Updated: 2-Oct-2020
Structure
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Program:
Drawing:
Aligned Rows:
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Type 1 (T1) Cu
Conserved site includes 4 residues -Click on image for an interactive view with Cn3D
Feature 1: Type 1 (T1) Cu binding site [ion binding site], 4 residue positions
Conserved feature residue pattern:H C H MClick to see conserved feature residue pattern help
Evidence:
  • Structure:2AAN; Chloroflexus aurantiacus Auracyanin A binds to copper at a Type 1 site.
  • Structure:1QHQ: Chloroflexus aurantiacus Auracyanin binds copper at T1 site.
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Sequence Alignment
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Format: Row Display: Color Bits: Type Selection: 
Feature 1                                                 #                                       
2AAN_A         18 PVTIEIGSkgeelaFDKTELTVSAGqTVTIRFKNNsaVQQHNWILVKGGeaEAANIANAGLSAgpaan----ylpaDKSN 93   Chloroflexus ...
YP_003860810  768 DVVFNLKTvnqkmaFDKTILKATAGqTVEIVLNNTd-QMPHNLVVIKDG--SLETFGERVDMFlkdpeaakvgyvpNSRY 844  Flavobacteria...
YP_003090621   19 VTEVTLKVmpg-lqFDVVRFTVKPGaLVKLSFTNTd-DMSHNLLITKPG--KRLAVVNAALQLeekgpa--mnyipKSSD 92   Pedobacter he...
YP_004653794   21 DTTITLSAitg-lqYDLVRVAVKPSqKVTVILKNTd-DMAHNLVITQPG--KRLSVVEAAIKMgdkgqa--snyvpPSEE 94   Runella slith...
CCH54619       41 DTTIVLKAitg-lqFDQPRLVIKPNtRLRLVLHNTd-DMAHNLVLTKPN--SRLRVVEFALALgergpk--ldhvpPMPE 114  Fibrisoma lim...
NP_865052    1299 VRLVRIKTvdeemrYDVPYFAVEAGrPVQVVLENHd-GMPHNLVITVPG--ELKKVAELGLQAgprggfqgkqyvpDSEL 1375 Rhodopirellul...
AGA31066     1339 VRVLRLGTlpeqmlFDKERLAVKAGkPVEILFENNd-LMPHNVVVIQPG--TLEEVGLLGESTatdpgalarnyvpSSKG 1415 Singulisphaer...
CCH03305       25 DTTILIKTmag-lqFSEKRLVLRPNtRLTLIVENDd-DMAHNLVVTKPN--SRARVVEFALGMgetgpa--rqfvpTLSD 98   Fibrella aest...
EDY18537       31 AEPIEIKAvsg-lrYDPPRFVVKPGaKVKLEVENTd-DMAHNFVIVAPG--GRMEVVNAAMTMpvtpe---qtfipQSDK 103  Chthoniobacte...
ADB37223       22 DTVIQISAtgg-lqYSKKRIVVKPNtRLTLVFQNKd-DMAHNLVVTRPN--SRLRVVEFALALgdkgaq--qhyipAIDD 95   Spirosoma lin...

Feature 1                                       #    #   #      
2AAN_A         94 IIAESPLANgNETVEVTFTAPa-AGTYLYICTVPGHYplMQGKLVV 138  Chloroflexus aurantiacus
YP_003860810  845 VLGATEMLEpGEIGSIVVQLPdkPGRYPFVCTFPGHWrlMQGVIIV 890  Flavobacteriales bacterium HTCC2170
YP_003090621   93 VLWSVPILSpEQTKSLSFKAPlqAGAYPYVCTYPGHGfvMYGVMYV 138  Pedobacter heparinus DSM 2366
YP_004653794   95 VVAASRILIpNTTETFTFTAPvtEGTYPYVCTYPGHGyvMYGVLYV 140  Runella slithyformis DSM 19594
CCH54619      115 VLAHTRTVDpGNADTLTVTLT--EGAYPYVCTYPGHGsiMYGVLYV 158  Fibrisoma limi BUZ 3
NP_865052    1376 VLHSTDLVAsNEKEALTFTAPtePGEYPYVCTFPQHWyrMYGVMVV 1421 Rhodopirellula baltica SH 1
AGA31066     1416 VILASRLLQpRETQTLAFTAPsqPGVYPYVCTYPGHWrrMYGSLYV 1461 Singulisphaera acidiphila
CCH03305       99 VLAHTRLLSpGDSDTLSLTLPd-EGDFSYVCTYPGHGsiMYGMLYV 143  Fibrella aestuarina
EDY18537      104 ILFHTPVLIpGKSASLEFTAPteEGVYPYICTYPGHGmvMFGAMYV 149  Chthoniobacter flavus
ADB37223       96 VLAHTTSVEpGNTDSVTVKVA--EGGYPFVCTFPGHGsiMYGIIYA 139  Spirosoma linguale

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